This is just some <i>HTML</i> text!</p>',\\n\\n { questionType: 'multiple choice',\",\n \" \\\"\\\"\\\"Test a mix of various activities using legacy and new parser.\\\"\\\"\\\"\",\n \" activity_text = (\\n \\\"\\\"\\\"activity = [\\n\\n '<p>This is just some <i>HTML</i> text!</p>',\\n\\n { questionType: 'multiple choice',\\n questionHTML: '<p>What letter am I thinking about now?</p>',\\n choices: [\",\n \" verify_activity(activity_text)\",\n \" scope = verify.Activity().scope\",\n \" current_ast = ActivityParser13.parse_string_in_scope(\\n activity_text, scope, 'activity')\",\n \" expected_ast = verify.legacy_eval_python_expression_for_test(\\n activity_text, scope, 'activity')\",\n \" same = (\\n len(current_ast.get('activity')) == 4 and\\n current_ast.get('activity') == expected_ast.get('activity') and\\n current_ast == expected_ast)\",\n \" if not same:\\n import pprint\\n pprint.pprint(current_ast.get('activity'))\\n pprint.pprint(expected_ast.get('activity'))\",\n \" import pprint\",\n \" pprint.pprint(current_ast.get('activity'))\",\n \" pprint.pprint(expected_ast.get('activity'))\",\n \"def test_assessment_ast():\\n \\\"\\\"\\\"Test a mix of various activities using legacy and new parser.\\\"\\\"\\\"\\n # pylint: disable=anomalous-backslash-in-string\\n assessment_text = (\\n \\\"\\\"\\\"assessment = {\\n preamble: '<p>This is text.</p>',\\n questionsList: [\\n {'questionHTML': '<p>This is text.</p>',\",\n \" \\\"\\\"\\\"Test a mix of various activities using legacy and new parser.\\\"\\\"\\\"\",\n \" assessment_text = (\\n \\\"\\\"\\\"assessment = {\\n preamble: '<p>This is text.</p>',\\n questionsList: [\\n {'questionHTML': '<p>This is text.</p>',\\n choices:\\n [\\\"A and B\\\", \\\"D and B\\\", correct(\\\"A and C\\\"), \\\"C and D\\\", \\\"I don't know\\\"]\\n },\",\n \" verify_assessment(assessment_text)\",\n \" scope = verify.Assessment().scope\",\n \" current_ast = AssessmentParser13.parse_string_in_scope(\\n assessment_text, scope, 'assessment')\",\n \" expected_ast = verify.legacy_eval_python_expression_for_test(\\n assessment_text, scope, 'assessment')\",\n \" same = (\\n len(current_ast.get('assessment')) == 4 and\\n len(current_ast.get('assessment').get('questionsList')) == 4 and\\n current_ast.get('assessment') == expected_ast.get('assessment') and\\n current_ast == expected_ast)\",\n \" if not same:\\n import pprint\\n pprint.pprint(current_ast.get('assessment'))\\n pprint.pprint(expected_ast.get('assessment'))\",\n \" import pprint\",\n \" pprint.pprint(current_ast.get('assessment'))\",\n \" pprint.pprint(expected_ast.get('assessment'))\",\n \"def test_list_of():\\n \\\"\\\"\\\"Test delimited list.\\\"\\\"\\\"\\n grammar = Optional(\\n Literal('[') +\\n Optional(list_of(Literal('a') ^ Literal('b'))) +\\n Literal(']'))\\n\\n assert str(['[', ']']) == str(grammar.parseString('[]'))\",\n \" \\\"\\\"\\\"Test delimited list.\\\"\\\"\\\"\",\n \" grammar = Optional(\\n Literal('[') +\\n Optional(list_of(Literal('a') ^ Literal('b'))) +\\n Literal(']'))\",\n \"def run_all_unit_tests():\\n \\\"\\\"\\\"Run all unit tests.\\\"\\\"\\\"\\n original = verify.parse_content\\n try:\\n verify.parse_content = parse_string_in_scope\\n\\n test_list_of()\",\n \" \\\"\\\"\\\"Run all unit tests.\\\"\\\"\\\"\",\n \" original = verify.parse_content\",\n \" try:\\n verify.parse_content = parse_string_in_scope\\n\\n test_list_of()\\n\\n test_activity_multiple_choice()\\n test_activity_free_text()\\n test_activity_multiple_choice_group()\",\n \" verify.parse_content = parse_string_in_scope\",\n \" test_list_of()\",\n \" test_activity_multiple_choice()\",\n \" test_activity_free_text()\",\n \" test_activity_multiple_choice_group()\",\n \" test_activity_ast()\",\n \" test_assessment()\",\n \" test_assessment_ast()\",\n \" verify.test_sample_assets()\",\n \" verify.parse_content = original\",\n \"if __name__ == '__main__':\\n run_all_unit_tests()\",\n \" run_all_unit_tests()\"\n]","isConversational":false}}},{"rowIdx":4779,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Classes supporting dynamically registering custom modules.\"\"\"\n\n__author__ = 'Pavel Simakov (psimakov@google.com)'\n\n\nclass Module(object):\n \"\"\"A class that holds module information.\"\"\"\n\n def __init__(\n self, name, desc, global_routes, namespaced_routes,\n notify_module_enabled=None, notify_module_disabled=None):\n self._name = name\n self._desc = desc\n self._global_routes = global_routes\n self._namespaced_routes = namespaced_routes\n self._notify_module_enabled = notify_module_enabled\n self._notify_module_disabled = (\n notify_module_disabled or Module.module_disabling_is_deprecated)\n\n Registry.registered_modules[self._name] = self\n\n def disable(self):\n raise NotImplementedError('Disabling modules is not supported.')\n\n @staticmethod\n def module_disabling_is_deprecated():\n raise NotImplementedError('Disabling modules is not supported.')\n\n def enable(self):\n Registry.enabled_module_names.add(self.name)\n if self._notify_module_enabled:\n self._notify_module_enabled()\n\n @property\n def enabled(self):\n return self.name in Registry.enabled_module_names\n\n @property\n def name(self):\n return self._name\n\n @property\n def desc(self):\n return self._desc\n\n @property\n def global_routes(self):\n if self.name in Registry.enabled_module_names:\n return self._global_routes\n else:\n return []\n\n @property\n def namespaced_routes(self):\n if self.name in Registry.enabled_module_names:\n return self._namespaced_routes\n else:\n return []\n\n\nclass Registry(object):\n \"\"\"A registry that holds all custom modules.\"\"\"\n\n registered_modules = {}\n enabled_module_names = set()\n\n @classmethod\n def get_all_routes(cls):\n global_routes = []\n namespaced_routes = []\n for registered_module in cls.registered_modules.values():\n if registered_module.enabled:\n # Only populate the routing table with enabled modules.\n global_routes += registered_module.global_routes\n namespaced_routes += registered_module.namespaced_routes\n return global_routes, namespaced_routes\n"},"vector":{"kind":"list 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0.9722,\n 0.0444,\n 3,\n 0.33,\n 0,\n 0,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 1,\n 0.0111,\n 2,\n 0.41,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 8,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Classes supporting dynamically registering custom modules.\"\"\"","__author__ = 'Pavel Simakov (psimakov@google.com)'","class Module(object):\n \"\"\"A class that holds module information.\"\"\"\n\n def __init__(\n self, name, desc, global_routes, namespaced_routes,\n notify_module_enabled=None, notify_module_disabled=None):\n self._name = name\n self._desc = desc"," \"\"\"A class that holds module information.\"\"\""," def __init__(\n self, name, desc, global_routes, namespaced_routes,\n notify_module_enabled=None, notify_module_disabled=None):\n self._name = name\n self._desc = desc\n self._global_routes = global_routes\n self._namespaced_routes = namespaced_routes\n self._notify_module_enabled = notify_module_enabled"," self._name = name"," self._desc = desc"," self._global_routes = global_routes"," self._namespaced_routes = namespaced_routes"," self._notify_module_enabled = notify_module_enabled"," self._notify_module_disabled = (\n notify_module_disabled or Module.module_disabling_is_deprecated)"," Registry.registered_modules[self._name] = self"," def disable(self):\n raise NotImplementedError('Disabling modules is not supported.')"," def module_disabling_is_deprecated():\n raise NotImplementedError('Disabling modules is not supported.')"," def enable(self):\n Registry.enabled_module_names.add(self.name)\n if self._notify_module_enabled:\n self._notify_module_enabled()"," Registry.enabled_module_names.add(self.name)"," if self._notify_module_enabled:\n self._notify_module_enabled()"," self._notify_module_enabled()"," def enabled(self):\n return self.name in Registry.enabled_module_names"," return self.name in Registry.enabled_module_names"," def name(self):\n return self._name"," return self._name"," def desc(self):\n return self._desc"," return self._desc"," def global_routes(self):\n if self.name in Registry.enabled_module_names:\n return self._global_routes\n else:\n return []"," if self.name in Registry.enabled_module_names:\n return self._global_routes\n else:\n return []"," return self._global_routes"," return []"," def namespaced_routes(self):\n if self.name in Registry.enabled_module_names:\n return self._namespaced_routes\n else:\n return []"," if self.name in Registry.enabled_module_names:\n return self._namespaced_routes\n else:\n return []"," return self._namespaced_routes"," return []","class Registry(object):\n \"\"\"A registry that holds all custom modules.\"\"\"\n\n registered_modules = {}\n enabled_module_names = set()\n\n @classmethod\n def get_all_routes(cls):"," \"\"\"A registry that holds all custom modules.\"\"\""," registered_modules = {}"," enabled_module_names = set()"," def get_all_routes(cls):\n global_routes = []\n namespaced_routes = []\n for registered_module in cls.registered_modules.values():\n if registered_module.enabled:\n # Only populate the routing table with enabled modules.\n global_routes += registered_module.global_routes\n namespaced_routes += registered_module.namespaced_routes"," global_routes = []"," namespaced_routes = []"," for registered_module in cls.registered_modules.values():\n if registered_module.enabled:\n # Only populate the routing table with enabled modules.\n global_routes += registered_module.global_routes\n namespaced_routes += registered_module.namespaced_routes"," if registered_module.enabled:\n # Only populate the routing table with enabled modules.\n global_routes += registered_module.global_routes\n namespaced_routes += registered_module.namespaced_routes"," return global_routes, namespaced_routes"],"string":"[\n \"\\\"\\\"\\\"Classes supporting dynamically registering custom modules.\\\"\\\"\\\"\",\n \"__author__ = 'Pavel Simakov (psimakov@google.com)'\",\n \"class Module(object):\\n \\\"\\\"\\\"A class that holds module information.\\\"\\\"\\\"\\n\\n def __init__(\\n self, name, desc, global_routes, namespaced_routes,\\n notify_module_enabled=None, notify_module_disabled=None):\\n self._name = name\\n self._desc = desc\",\n \" \\\"\\\"\\\"A class that holds module information.\\\"\\\"\\\"\",\n \" def __init__(\\n self, name, desc, global_routes, namespaced_routes,\\n notify_module_enabled=None, notify_module_disabled=None):\\n self._name = name\\n self._desc = desc\\n self._global_routes = global_routes\\n self._namespaced_routes = namespaced_routes\\n self._notify_module_enabled = notify_module_enabled\",\n \" self._name = name\",\n \" self._desc = desc\",\n \" self._global_routes = global_routes\",\n \" self._namespaced_routes = namespaced_routes\",\n \" self._notify_module_enabled = notify_module_enabled\",\n \" self._notify_module_disabled = (\\n notify_module_disabled or Module.module_disabling_is_deprecated)\",\n \" Registry.registered_modules[self._name] = self\",\n \" def disable(self):\\n raise NotImplementedError('Disabling modules is not supported.')\",\n \" def module_disabling_is_deprecated():\\n raise NotImplementedError('Disabling modules is not supported.')\",\n \" def enable(self):\\n Registry.enabled_module_names.add(self.name)\\n if self._notify_module_enabled:\\n self._notify_module_enabled()\",\n \" Registry.enabled_module_names.add(self.name)\",\n \" if self._notify_module_enabled:\\n self._notify_module_enabled()\",\n \" self._notify_module_enabled()\",\n \" def enabled(self):\\n return self.name in Registry.enabled_module_names\",\n \" return self.name in Registry.enabled_module_names\",\n \" def name(self):\\n return self._name\",\n \" return self._name\",\n \" def desc(self):\\n return self._desc\",\n \" return self._desc\",\n \" def global_routes(self):\\n if self.name in Registry.enabled_module_names:\\n return self._global_routes\\n else:\\n return []\",\n \" if self.name in Registry.enabled_module_names:\\n return self._global_routes\\n else:\\n return []\",\n \" return self._global_routes\",\n \" return []\",\n \" def namespaced_routes(self):\\n if self.name in Registry.enabled_module_names:\\n return self._namespaced_routes\\n else:\\n return []\",\n \" if self.name in Registry.enabled_module_names:\\n return self._namespaced_routes\\n else:\\n return []\",\n \" return self._namespaced_routes\",\n \" return []\",\n \"class Registry(object):\\n \\\"\\\"\\\"A registry that holds all custom modules.\\\"\\\"\\\"\\n\\n registered_modules = {}\\n enabled_module_names = set()\\n\\n @classmethod\\n def get_all_routes(cls):\",\n \" \\\"\\\"\\\"A registry that holds all custom modules.\\\"\\\"\\\"\",\n \" registered_modules = {}\",\n \" enabled_module_names = set()\",\n \" def get_all_routes(cls):\\n global_routes = []\\n namespaced_routes = []\\n for registered_module in cls.registered_modules.values():\\n if registered_module.enabled:\\n # Only populate the routing table with enabled modules.\\n global_routes += registered_module.global_routes\\n namespaced_routes += registered_module.namespaced_routes\",\n \" global_routes = []\",\n \" namespaced_routes = []\",\n \" for registered_module in cls.registered_modules.values():\\n if registered_module.enabled:\\n # Only populate the routing table with enabled modules.\\n global_routes += registered_module.global_routes\\n namespaced_routes += registered_module.namespaced_routes\",\n \" if registered_module.enabled:\\n # Only populate the routing table with enabled modules.\\n global_routes += registered_module.global_routes\\n namespaced_routes += registered_module.namespaced_routes\",\n \" return global_routes, namespaced_routes\"\n]","isConversational":false}}},{"rowIdx":4780,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Analytics for extracting facts based on StudentAnswerEntity entries.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nimport collections\nimport logging\n\nimport courses\nfrom common import tags\nimport models\nfrom tools import verify\n\nQuestionAnswerInfo = collections.namedtuple(\n 'QuestionAnswerInfo',\n ['unit_id',\n 'lesson_id',\n 'sequence', # 0-based index of the question within the lesson/assessment.\n 'question_id', # ID of the QuestionEntity to which this is an answer.\n 'question_type', # McQuestion, SaQuestion, etc.\n 'timestamp', # Timestamp from the event.\n 'answers', # The answer (or answers, if multiple-answer multiple-choice).\n 'score', # Unweighted score for the answer.\n 'weighted_score', # Score fully weighted by question instance in HTML\n # or question usage in group and assessment (if in\n # assessment)\n 'tallied', # Boolean: False for lessons where questions are not scored.\n ])\n\n\ndef _unpack_single_question_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n valid_question_ids):\n\n if info['id'] not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])\n return []\n\n weighted_score = score * info['weight'] * assessment_weight\n return [QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'], info['id'],\n types, timestamp, answers, score, weighted_score, tallied=True)]\n\n\ndef _unpack_question_group_answer_1_5(\n info, types, scores, assessment_weight, timestamp, answers,\n usage_id, unit_responses, group_to_questions, valid_question_ids):\n # Sometimes the event contains enough information to get the\n # question IDs in the question group directly; this happens for\n # assessments. For graded lessons, we don't have that luxury, and\n # we need to (attempt to) rediscover the question IDs from\n # information gathered at map/reduce time.\n ret = []\n seqs = []\n q_ids = []\n\n if info['id'] not in group_to_questions:\n logging.info(\n 'Question group with ID %s is referenced in an event, but '\n 'is no longer present in the course. Ignoring the '\n 'question group answer.', info['id'])\n return []\n\n if usage_id in unit_responses:\n # Assessment events contain packed strings of the form\n # <question-usage-id-string>.<sequence#>.<QuestionEntity id>\n # keyed by the usage-ID string for the question group.\n # Unpack these into arrays for use below.\n packed_ids = unit_responses[usage_id].keys()\n packed_ids.sort(key=lambda packed: int(packed.split('.')[1]))\n for packed_id in packed_ids:\n _, seq, q_id = packed_id.split('.')\n seqs.append(seq)\n if q_id not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])\n return []\n q_ids.append(q_id)\n else:\n for seq, q_info in enumerate(group_to_questions[info['id']]):\n seqs.append(seq)\n q_id = q_info['question']\n if q_id not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])\n return []\n q_ids.append(q_id)\n\n if (len(q_ids) != len(answers) or\n len(q_ids) != len(group_to_questions[info['id']])):\n\n logging.info(\n 'Question group usage \"%s\" in location \"%s\" has '\n 'changed length since an older event was recorded; '\n 'ignoring the unusable group answer.', usage_id,\n unit_responses.get('location', ''))\n return []\n\n for q_id, seq, answer, q_type, q_score in zip(\n q_ids, seqs, answers, types, scores):\n\n # Here, we are guessing at the actual weight, since the\n # weight for each question is not supplied in the event.\n # We do, however, have the question ID, so if that question\n # is still part of the question group, we can use the current\n # weight value.\n # TODO(mgainer): When we get server-side grading, this mess\n # can finally get ripped out.\n weight_in_group = 1.0\n for item in group_to_questions.get(info['id'], []):\n if item['question'] == q_id:\n weight_in_group = item['weight']\n\n weighted_score = q_score * weight_in_group * assessment_weight\n ret.append(QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'] + int(seq),\n q_id, q_type, timestamp, answer, q_score, weighted_score,\n tallied=True))\n return ret\n\n\ndef unpack_student_answer_1_5(questions_info, valid_question_ids,\n assessment_weights, group_to_questions,\n unit_responses, timestamp):\n \"\"\"Unpack JSON from event; convert to QuestionAnswerInfo objects.\n\n The JSON for events is unusually shaped; function regularizes it\n into plain-old-data objects. Also translates from question-usage ID\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\n assumption that a question will only be used once per lesson). Note\n that this function flattens question groups, unpacking everything as\n a single array of questions.\n\n Args:\n questions_info: A map from question usage ID to unit/lesson/question IDs.\n Generate this by calling get_questions_by_usage_id().\n assessment_weights: Map from assessment ID to weight for that assessment.\n group_to_questions: Map from question group ID to list of\n dicts holding question ID as 'question' and weight as 'weight'.\n unit_responses: The user's responses. Obtain this by unpacking an\n event of type 'submit-assessment' and picking out the 'values' item,\n or an event of type 'attempt-lesson' and picking out 'answers'.\n timestamp: Timestamp from the event. Value is copied into the\n results, but not otherwise used.\n Returns:\n An array of QuestionAnswerInfo corresponding to the answers\n given by the student, as recorded in the submitted event.\n \"\"\"\n\n ret = []\n contained_types = unit_responses['containedTypes']\n for usage_id, answers in unit_responses['answers'].items():\n if usage_id == 'version': # Found in graded assessments.\n continue\n if usage_id not in questions_info:\n logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)\n continue # Skip items from no-longer-present questions.\n\n # Note: The variable names here are in plural, but for single\n # questions, 'types', 'score' and 'answers' contain just one\n # item. (whereas for question groups, these are all arrays)\n info = questions_info[usage_id]\n types = contained_types[usage_id]\n score = unit_responses['individualScores'][usage_id]\n unit_id = info['unit']\n assessment_weight = assessment_weights.get(str(unit_id), 1.0)\n\n # Single question - give its answer.\n if types == 'McQuestion' or types == 'SaQuestion':\n ret.extend(_unpack_single_question_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n valid_question_ids))\n\n # Question group. Fetch IDs of sub-questions, which are packed as\n # <group-usage-id>.<sequence>.<question-id>.\n # Order by <sequence>, which is 0-based within question-group.\n elif isinstance(types, list):\n ret.extend(_unpack_question_group_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n usage_id, unit_responses, group_to_questions,\n valid_question_ids))\n return ret\n\n\ndef unpack_check_answers(\n content, questions_info, valid_question_ids, assessment_weights,\n group_to_questions, timestamp):\n \"\"\"Parse check-answers submissions for ungraded questions.\n\n The JSON for events is unusually shaped; function regularizes it\n into plain-old-data objects. Also translates from question-usage ID\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\n assumption that a question will only be used once per lesson). Note\n that this function flattens question groups, unpacking everything as\n a single array of questions.\n\n Args:\n content: The dict unpacked from a JSON string for an event with\n a source of 'tag-assessment'.\n questions_info: A map from question usage ID to unit/lesson/question IDs.\n Generate this by calling get_questions_by_usage_id().\n assessment_weights: Map from assessment ID to weight for that assessment.\n group_to_questions: A map of group ID to dicts, as follows. Generate\n this by calling group_to_questions(), below.\n 'question' -> string containing question ID.\n 'weight' -> float representing the weight of that question in this group\n timestamp: Timestamp from the event. Value is copied into the\n results, but not otherwise used.\n Returns:\n An array of QuestionAnswerInfo corresponding to the answers\n given by the student, as recorded in the submitted event.\n \"\"\"\n\n qtype = content.get('type')\n usage_id = content['instanceid']\n if usage_id not in questions_info:\n logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)\n return []\n info = questions_info[usage_id]\n assessment_weight = assessment_weights.get(info['unit'], 1.0)\n\n if qtype == 'SaQuestion' or qtype == 'McQuestion':\n if info['id'] not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])\n return []\n score = content.get('score', 0.0)\n weighted_score = score * info['weight'] * assessment_weight\n answers = [QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'], info['id'], qtype,\n timestamp, content['answer'], score, weighted_score, tallied=False)]\n elif qtype == 'QuestionGroup':\n values = content.get('answer')\n scores = content.get('individualScores')\n types = content.get('containedTypes')\n\n # Here, we have to hope that the length and order of questions within\n # a group has not changed since the event was recorded, as the events\n # do not record the question ID within the group. We just assume that\n # the index at the time the check-answer event was recorded is the\n # same as in the question group currently.\n # TODO(mgainer): When we get server-side grading, buff this up.\n group_id = questions_info[usage_id]['id']\n if group_id not in group_to_questions:\n logging.info(\n 'Question group with ID %s is referenced in an event, but '\n 'is no longer present in the course. Ignoring the unusable '\n 'question group answer.', group_id)\n return []\n\n q_infos = group_to_questions.get(group_id, [])\n if len(q_infos) != len(values):\n logging.info('Ignoring event for question group \"%s\": '\n 'This group currently has length %d, '\n 'but event has length %d.', usage_id,\n len(q_infos), len(values))\n return []\n\n answers = []\n i = 0\n for q_info, val, score, qtype in zip(q_infos, values, scores, types):\n weighted_score = score * q_info['weight'] * assessment_weight\n answers.append(QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'] + i,\n q_info['question'], qtype, timestamp, val, score,\n weighted_score, tallied=False))\n i += 1\n else:\n logging.warning('Not handling unknown question or group type \"%s\"',\n qtype)\n answers = []\n return answers\n\n\ndef _add_questions_from_html(\n questions_by_usage_id, unit_id, lesson_id, html, question_group_lengths):\n \"\"\"Parse rich-text HTML and add questions found to map by ID.\"\"\"\n\n sequence_counter = 0\n for component in tags.get_components_from_html(html):\n if component['cpt_name'] == 'question':\n questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['quid'],\n 'weight': float(component.get('weight', 1.0)),\n }\n sequence_counter += 1\n elif component['cpt_name'] == 'question-group':\n questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['qgid'],\n }\n if component['qgid'] in question_group_lengths:\n sequence_counter += (\n question_group_lengths[component['qgid']])\n\n\ndef get_questions_by_usage_id(app_context):\n \"\"\"Build map: question-usage-ID to {question ID, unit ID, sequence}.\n\n When a question or question-group is mentioned on a CourseBuilder\n HTML page, it is identified by a unique opaque ID which indicates\n *that usage* of a particular question.\n\n Args:\n app_context: Normal context object giving namespace, etc.\n Returns:\n A map of precalculated facts to be made available to mapper\n workerbee instances.\n \"\"\"\n\n questions_by_usage_id = {}\n # To know a question's sequence number within an assessment, we need\n # to know how many questions a question group contains.\n question_group_lengths = {}\n for group in models.QuestionGroupDAO.get_all():\n question_group_lengths[str(group.id)] = (\n len(group.question_ids))\n\n # Run through course. For each assessment, parse the HTML content\n # looking for questions and question groups. For each of those,\n # record the unit ID, use-of-item-on-page-instance-ID (a string\n # like 'RK3q5H2dS7So'), and the sequence on the page. Questions\n # count as one position. Question groups increase the sequence\n # count by the number of questions they contain.\n course = courses.Course(None, app_context)\n for unit in course.get_units():\n _add_questions_from_html(questions_by_usage_id, unit.unit_id, None,\n unit.html_content, question_group_lengths)\n for lesson in course.get_lessons(unit.unit_id):\n _add_questions_from_html(questions_by_usage_id, unit.unit_id,\n lesson.lesson_id, lesson.objectives,\n question_group_lengths)\n return questions_by_usage_id\n\n\ndef get_assessment_weights(app_context):\n ret = {}\n course = courses.Course(None, app_context)\n for unit in course.get_units():\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n ret[str(unit.unit_id)] = float(unit.weight)\n return ret\n\n\ndef get_group_to_questions():\n ret = {}\n for group in models.QuestionGroupDAO.get_all():\n items = group.items\n for element in items:\n element['question'] = str(element['question'])\n element['weight'] = float(element['weight'])\n ret[str(group.id)] = items\n return ret\n\n\ndef get_unscored_lesson_ids(app_context):\n ret = []\n for lesson in courses.Course(None, app_context).get_lessons_for_all_units():\n if not lesson.scored:\n ret.append(lesson.lesson_id)\n return ret\n\ndef get_valid_question_ids():\n ret = []\n for question in models.QuestionDAO.get_all():\n ret.append(str(question.id))\n return ret\n"},"vector":{"kind":"list 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0.9615,\n 0.0026,\n 2,\n 0.31,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 1,\n 0.9641,\n 0.0026,\n 1,\n 0.29,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 0,\n 0.9782,\n 0.0154,\n 0,\n 0.66,\n 0.9444,\n 386,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 14,\n 1,\n 0.9744,\n 0.0026,\n 1,\n 0.61,\n 0,\n 501,\n 0,\n 0,\n 0,\n 0,\n 0,\n 5,\n 0\n ],\n [\n 6,\n 1,\n 0.9795,\n 0.0077,\n 1,\n 0.61,\n 0.5,\n 844,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 4,\n 2,\n 0.9808,\n 0.0051,\n 2,\n 0.32,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 3,\n 0.9821,\n 0.0026,\n 3,\n 0.63,\n 0,\n 243,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 1,\n 0.9846,\n 0.0026,\n 1,\n 0.61,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 0,\n 0.9949,\n 0.0128,\n 0,\n 0.66,\n 1,\n 79,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 14,\n 1,\n 0.9923,\n 0.0026,\n 1,\n 0.36,\n 0,\n 501,\n 0,\n 0,\n 0,\n 0,\n 0,\n 5,\n 0\n ],\n [\n 6,\n 1,\n 0.9962,\n 0.0051,\n 1,\n 0.36,\n 0.5,\n 785,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 8,\n 2,\n 0.9974,\n 0.0026,\n 2,\n 0.53,\n 0,\n 243,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 2\n ],\n [\n 13,\n 1,\n 1,\n 0.0026,\n 1,\n 0.36,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Analytics for extracting facts based on StudentAnswerEntity entries.\"\"\"","__author__ = 'Mike Gainer (mgainer@google.com)'","import collections","import logging","import courses","from common import tags","import models","from tools import verify","QuestionAnswerInfo = collections.namedtuple(\n 'QuestionAnswerInfo',\n ['unit_id',\n 'lesson_id',\n 'sequence', # 0-based index of the question within the lesson/assessment.\n 'question_id', # ID of the QuestionEntity to which this is an answer.\n 'question_type', # McQuestion, SaQuestion, etc.\n 'timestamp', # Timestamp from the event.","def _unpack_single_question_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n valid_question_ids):\n\n if info['id'] not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])\n return []"," if info['id'] not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])\n return []"," logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])"," return []"," weighted_score = score * info['weight'] * assessment_weight"," return [QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'], info['id'],\n types, timestamp, answers, score, weighted_score, tallied=True)]","def _unpack_question_group_answer_1_5(\n info, types, scores, assessment_weight, timestamp, answers,\n usage_id, unit_responses, group_to_questions, valid_question_ids):\n # Sometimes the event contains enough information to get the\n # question IDs in the question group directly; this happens for\n # assessments. For graded lessons, we don't have that luxury, and\n # we need to (attempt to) rediscover the question IDs from\n # information gathered at map/reduce time."," ret = []"," seqs = []"," q_ids = []"," if info['id'] not in group_to_questions:\n logging.info(\n 'Question group with ID %s is referenced in an event, but '\n 'is no longer present in the course. Ignoring the '\n 'question group answer.', info['id'])\n return []"," logging.info(\n 'Question group with ID %s is referenced in an event, but '\n 'is no longer present in the course. Ignoring the '\n 'question group answer.', info['id'])"," return []"," if usage_id in unit_responses:\n # Assessment events contain packed strings of the form\n # <question-usage-id-string>.<sequence#>.<QuestionEntity id>\n # keyed by the usage-ID string for the question group.\n # Unpack these into arrays for use below.\n packed_ids = unit_responses[usage_id].keys()\n packed_ids.sort(key=lambda packed: int(packed.split('.')[1]))\n for packed_id in packed_ids:"," packed_ids = unit_responses[usage_id].keys()"," packed_ids.sort(key=lambda packed: int(packed.split('.')[1]))"," for packed_id in packed_ids:\n _, seq, q_id = packed_id.split('.')\n seqs.append(seq)\n if q_id not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])\n return []"," _, seq, q_id = packed_id.split('.')"," seqs.append(seq)"," if q_id not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])\n return []"," logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])"," return []"," q_ids.append(q_id)"," for seq, q_info in enumerate(group_to_questions[info['id']]):\n seqs.append(seq)\n q_id = q_info['question']\n if q_id not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])\n return []"," seqs.append(seq)"," q_id = q_info['question']"," if q_id not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])\n return []"," logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring it and the question group containing '\n 'it.', info['id'])"," return []"," q_ids.append(q_id)"," if (len(q_ids) != len(answers) or\n len(q_ids) != len(group_to_questions[info['id']])):\n\n logging.info(\n 'Question group usage \"%s\" in location \"%s\" has '\n 'changed length since an older event was recorded; '\n 'ignoring the unusable group answer.', usage_id,\n unit_responses.get('location', ''))"," logging.info(\n 'Question group usage \"%s\" in location \"%s\" has '\n 'changed length since an older event was recorded; '\n 'ignoring the unusable group answer.', usage_id,\n unit_responses.get('location', ''))"," return []"," for q_id, seq, answer, q_type, q_score in zip(\n q_ids, seqs, answers, types, scores):\n\n # Here, we are guessing at the actual weight, since the\n # weight for each question is not supplied in the event.\n # We do, however, have the question ID, so if that question\n # is still part of the question group, we can use the current\n # weight value."," weight_in_group = 1.0"," for item in group_to_questions.get(info['id'], []):\n if item['question'] == q_id:\n weight_in_group = item['weight']"," if item['question'] == q_id:\n weight_in_group = item['weight']"," weight_in_group = item['weight']"," weighted_score = q_score * weight_in_group * assessment_weight"," ret.append(QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'] + int(seq),\n q_id, q_type, timestamp, answer, q_score, weighted_score,\n tallied=True))"," return ret","def unpack_student_answer_1_5(questions_info, valid_question_ids,\n assessment_weights, group_to_questions,\n unit_responses, timestamp):\n \"\"\"Unpack JSON from event; convert to QuestionAnswerInfo objects.\n\n The JSON for events is unusually shaped; function regularizes it\n into plain-old-data objects. Also translates from question-usage ID\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable"," \"\"\"Unpack JSON from event; convert to QuestionAnswerInfo objects.\n\n The JSON for events is unusually shaped; function regularizes it\n into plain-old-data objects. Also translates from question-usage ID\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\n assumption that a question will only be used once per lesson). Note\n that this function flattens question groups, unpacking everything as\n a single array of questions."," ret = []"," contained_types = unit_responses['containedTypes']"," for usage_id, answers in unit_responses['answers'].items():\n if usage_id == 'version': # Found in graded assessments.\n continue\n if usage_id not in questions_info:\n logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)\n continue # Skip items from no-longer-present questions."," if usage_id == 'version': # Found in graded assessments.\n continue"," if usage_id not in questions_info:\n logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)\n continue # Skip items from no-longer-present questions."," logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)"," info = questions_info[usage_id]"," types = contained_types[usage_id]"," score = unit_responses['individualScores'][usage_id]"," unit_id = info['unit']"," assessment_weight = assessment_weights.get(str(unit_id), 1.0)"," if types == 'McQuestion' or types == 'SaQuestion':\n ret.extend(_unpack_single_question_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n valid_question_ids))\n\n # Question group. Fetch IDs of sub-questions, which are packed as\n # <group-usage-id>.<sequence>.<question-id>.\n # Order by <sequence>, which is 0-based within question-group."," ret.extend(_unpack_single_question_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n valid_question_ids))"," elif isinstance(types, list):\n ret.extend(_unpack_question_group_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n usage_id, unit_responses, group_to_questions,\n valid_question_ids))"," ret.extend(_unpack_question_group_answer_1_5(\n info, types, score, assessment_weight, timestamp, answers,\n usage_id, unit_responses, group_to_questions,\n valid_question_ids))"," return ret","def unpack_check_answers(\n content, questions_info, valid_question_ids, assessment_weights,\n group_to_questions, timestamp):\n \"\"\"Parse check-answers submissions for ungraded questions.\n\n The JSON for events is unusually shaped; function regularizes it\n into plain-old-data objects. Also translates from question-usage ID\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable"," \"\"\"Parse check-answers submissions for ungraded questions.\n\n The JSON for events is unusually shaped; function regularizes it\n into plain-old-data objects. Also translates from question-usage ID\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\n assumption that a question will only be used once per lesson). Note\n that this function flattens question groups, unpacking everything as\n a single array of questions."," qtype = content.get('type')"," usage_id = content['instanceid']"," if usage_id not in questions_info:\n logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)\n return []"," logging.info('Question or question-group ID \"%s\" in event is '\n 'no longer present', usage_id)"," return []"," info = questions_info[usage_id]"," assessment_weight = assessment_weights.get(info['unit'], 1.0)"," if qtype == 'SaQuestion' or qtype == 'McQuestion':\n if info['id'] not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])\n return []\n score = content.get('score', 0.0)\n weighted_score = score * info['weight'] * assessment_weight\n answers = [QuestionAnswerInfo("," if info['id'] not in valid_question_ids:\n logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])\n return []"," logging.info('Question with ID \"%s\" is no longer present; '\n 'ignoring data for it.', info['id'])"," return []"," score = content.get('score', 0.0)"," weighted_score = score * info['weight'] * assessment_weight"," answers = [QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'], info['id'], qtype,\n timestamp, content['answer'], score, weighted_score, tallied=False)]"," elif qtype == 'QuestionGroup':\n values = content.get('answer')\n scores = content.get('individualScores')\n types = content.get('containedTypes')\n\n # Here, we have to hope that the length and order of questions within\n # a group has not changed since the event was recorded, as the events\n # do not record the question ID within the group. We just assume that"," values = content.get('answer')"," scores = content.get('individualScores')"," types = content.get('containedTypes')"," group_id = questions_info[usage_id]['id']"," if group_id not in group_to_questions:\n logging.info(\n 'Question group with ID %s is referenced in an event, but '\n 'is no longer present in the course. Ignoring the unusable '\n 'question group answer.', group_id)\n return []"," logging.info(\n 'Question group with ID %s is referenced in an event, but '\n 'is no longer present in the course. Ignoring the unusable '\n 'question group answer.', group_id)"," return []"," q_infos = group_to_questions.get(group_id, [])"," if len(q_infos) != len(values):\n logging.info('Ignoring event for question group \"%s\": '\n 'This group currently has length %d, '\n 'but event has length %d.', usage_id,\n len(q_infos), len(values))\n return []"," logging.info('Ignoring event for question group \"%s\": '\n 'This group currently has length %d, '\n 'but event has length %d.', usage_id,\n len(q_infos), len(values))"," return []"," answers = []"," i = 0"," for q_info, val, score, qtype in zip(q_infos, values, scores, types):\n weighted_score = score * q_info['weight'] * assessment_weight\n answers.append(QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'] + i,\n q_info['question'], qtype, timestamp, val, score,\n weighted_score, tallied=False))\n i += 1"," weighted_score = score * q_info['weight'] * assessment_weight"," answers.append(QuestionAnswerInfo(\n info['unit'], info['lesson'], info['sequence'] + i,\n q_info['question'], qtype, timestamp, val, score,\n weighted_score, tallied=False))"," logging.warning('Not handling unknown question or group type \"%s\"',\n qtype)"," answers = []"," return answers","def _add_questions_from_html(\n questions_by_usage_id, unit_id, lesson_id, html, question_group_lengths):\n \"\"\"Parse rich-text HTML and add questions found to map by ID.\"\"\"\n\n sequence_counter = 0\n for component in tags.get_components_from_html(html):\n if component['cpt_name'] == 'question':\n questions_by_usage_id[component['instanceid']] = {"," \"\"\"Parse rich-text HTML and add questions found to map by ID.\"\"\""," sequence_counter = 0"," for component in tags.get_components_from_html(html):\n if component['cpt_name'] == 'question':\n questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['quid'],\n 'weight': float(component.get('weight', 1.0)),"," if component['cpt_name'] == 'question':\n questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['quid'],\n 'weight': float(component.get('weight', 1.0)),\n }"," questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['quid'],\n 'weight': float(component.get('weight', 1.0)),\n }"," elif component['cpt_name'] == 'question-group':\n questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['qgid'],\n }\n if component['qgid'] in question_group_lengths:"," questions_by_usage_id[component['instanceid']] = {\n 'unit': unit_id,\n 'lesson': lesson_id,\n 'sequence': sequence_counter,\n 'id': component['qgid'],\n }"," if component['qgid'] in question_group_lengths:\n sequence_counter += (\n question_group_lengths[component['qgid']])","def get_questions_by_usage_id(app_context):\n \"\"\"Build map: question-usage-ID to {question ID, unit ID, sequence}.\n\n When a question or question-group is mentioned on a CourseBuilder\n HTML page, it is identified by a unique opaque ID which indicates\n *that usage* of a particular question.\n\n Args:"," \"\"\"Build map: question-usage-ID to {question ID, unit ID, sequence}.\n\n When a question or question-group is mentioned on a CourseBuilder\n HTML page, it is identified by a unique opaque ID which indicates\n *that usage* of a particular question.\n\n Args:\n app_context: Normal context object giving namespace, etc."," questions_by_usage_id = {}"," question_group_lengths = {}"," for group in models.QuestionGroupDAO.get_all():\n question_group_lengths[str(group.id)] = (\n len(group.question_ids))"," question_group_lengths[str(group.id)] = (\n len(group.question_ids))"," course = courses.Course(None, app_context)"," for unit in course.get_units():\n _add_questions_from_html(questions_by_usage_id, unit.unit_id, None,\n unit.html_content, question_group_lengths)\n for lesson in course.get_lessons(unit.unit_id):\n _add_questions_from_html(questions_by_usage_id, unit.unit_id,\n lesson.lesson_id, lesson.objectives,\n question_group_lengths)"," _add_questions_from_html(questions_by_usage_id, unit.unit_id, None,\n unit.html_content, question_group_lengths)"," for lesson in course.get_lessons(unit.unit_id):\n _add_questions_from_html(questions_by_usage_id, unit.unit_id,\n lesson.lesson_id, lesson.objectives,\n question_group_lengths)"," _add_questions_from_html(questions_by_usage_id, unit.unit_id,\n lesson.lesson_id, lesson.objectives,\n question_group_lengths)"," return questions_by_usage_id","def get_assessment_weights(app_context):\n ret = {}\n course = courses.Course(None, app_context)\n for unit in course.get_units():\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n ret[str(unit.unit_id)] = float(unit.weight)\n return ret"," ret = {}"," course = courses.Course(None, app_context)"," for unit in course.get_units():\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n ret[str(unit.unit_id)] = float(unit.weight)"," if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n ret[str(unit.unit_id)] = float(unit.weight)"," ret[str(unit.unit_id)] = float(unit.weight)"," return ret","def get_group_to_questions():\n ret = {}\n for group in models.QuestionGroupDAO.get_all():\n items = group.items\n for element in items:\n element['question'] = str(element['question'])\n element['weight'] = float(element['weight'])\n ret[str(group.id)] = items"," ret = {}"," for group in models.QuestionGroupDAO.get_all():\n items = group.items\n for element in items:\n element['question'] = str(element['question'])\n element['weight'] = float(element['weight'])\n ret[str(group.id)] = items"," items = group.items"," for element in items:\n element['question'] = str(element['question'])\n element['weight'] = float(element['weight'])"," element['question'] = str(element['question'])"," element['weight'] = float(element['weight'])"," ret[str(group.id)] = items"," return ret","def get_unscored_lesson_ids(app_context):\n ret = []\n for lesson in courses.Course(None, app_context).get_lessons_for_all_units():\n if not lesson.scored:\n ret.append(lesson.lesson_id)\n return ret"," ret = []"," for lesson in courses.Course(None, app_context).get_lessons_for_all_units():\n if not lesson.scored:\n ret.append(lesson.lesson_id)"," if not lesson.scored:\n ret.append(lesson.lesson_id)"," ret.append(lesson.lesson_id)"," return ret","def get_valid_question_ids():\n ret = []\n for question in models.QuestionDAO.get_all():\n ret.append(str(question.id))\n return ret"," ret = []"," for question in models.QuestionDAO.get_all():\n ret.append(str(question.id))"," ret.append(str(question.id))"," return ret"],"string":"[\n \"\\\"\\\"\\\"Analytics for extracting facts based on StudentAnswerEntity entries.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"import collections\",\n \"import logging\",\n \"import courses\",\n \"from common import tags\",\n \"import models\",\n \"from tools import verify\",\n \"QuestionAnswerInfo = collections.namedtuple(\\n 'QuestionAnswerInfo',\\n ['unit_id',\\n 'lesson_id',\\n 'sequence', # 0-based index of the question within the lesson/assessment.\\n 'question_id', # ID of the QuestionEntity to which this is an answer.\\n 'question_type', # McQuestion, SaQuestion, etc.\\n 'timestamp', # Timestamp from the event.\",\n \"def _unpack_single_question_answer_1_5(\\n info, types, score, assessment_weight, timestamp, answers,\\n valid_question_ids):\\n\\n if info['id'] not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring data for it.', info['id'])\\n return []\",\n \" if info['id'] not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring data for it.', info['id'])\\n return []\",\n \" logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring data for it.', info['id'])\",\n \" return []\",\n \" weighted_score = score * info['weight'] * assessment_weight\",\n \" return [QuestionAnswerInfo(\\n info['unit'], info['lesson'], info['sequence'], info['id'],\\n types, timestamp, answers, score, weighted_score, tallied=True)]\",\n \"def _unpack_question_group_answer_1_5(\\n info, types, scores, assessment_weight, timestamp, answers,\\n usage_id, unit_responses, group_to_questions, valid_question_ids):\\n # Sometimes the event contains enough information to get the\\n # question IDs in the question group directly; this happens for\\n # assessments. For graded lessons, we don't have that luxury, and\\n # we need to (attempt to) rediscover the question IDs from\\n # information gathered at map/reduce time.\",\n \" ret = []\",\n \" seqs = []\",\n \" q_ids = []\",\n \" if info['id'] not in group_to_questions:\\n logging.info(\\n 'Question group with ID %s is referenced in an event, but '\\n 'is no longer present in the course. Ignoring the '\\n 'question group answer.', info['id'])\\n return []\",\n \" logging.info(\\n 'Question group with ID %s is referenced in an event, but '\\n 'is no longer present in the course. Ignoring the '\\n 'question group answer.', info['id'])\",\n \" return []\",\n \" if usage_id in unit_responses:\\n # Assessment events contain packed strings of the form\\n # <question-usage-id-string>.<sequence#>.<QuestionEntity id>\\n # keyed by the usage-ID string for the question group.\\n # Unpack these into arrays for use below.\\n packed_ids = unit_responses[usage_id].keys()\\n packed_ids.sort(key=lambda packed: int(packed.split('.')[1]))\\n for packed_id in packed_ids:\",\n \" packed_ids = unit_responses[usage_id].keys()\",\n \" packed_ids.sort(key=lambda packed: int(packed.split('.')[1]))\",\n \" for packed_id in packed_ids:\\n _, seq, q_id = packed_id.split('.')\\n seqs.append(seq)\\n if q_id not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring it and the question group containing '\\n 'it.', info['id'])\\n return []\",\n \" _, seq, q_id = packed_id.split('.')\",\n \" seqs.append(seq)\",\n \" if q_id not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring it and the question group containing '\\n 'it.', info['id'])\\n return []\",\n \" logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring it and the question group containing '\\n 'it.', info['id'])\",\n \" return []\",\n \" q_ids.append(q_id)\",\n \" for seq, q_info in enumerate(group_to_questions[info['id']]):\\n seqs.append(seq)\\n q_id = q_info['question']\\n if q_id not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring it and the question group containing '\\n 'it.', info['id'])\\n return []\",\n \" seqs.append(seq)\",\n \" q_id = q_info['question']\",\n \" if q_id not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring it and the question group containing '\\n 'it.', info['id'])\\n return []\",\n \" logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring it and the question group containing '\\n 'it.', info['id'])\",\n \" return []\",\n \" q_ids.append(q_id)\",\n \" if (len(q_ids) != len(answers) or\\n len(q_ids) != len(group_to_questions[info['id']])):\\n\\n logging.info(\\n 'Question group usage \\\"%s\\\" in location \\\"%s\\\" has '\\n 'changed length since an older event was recorded; '\\n 'ignoring the unusable group answer.', usage_id,\\n unit_responses.get('location', ''))\",\n \" logging.info(\\n 'Question group usage \\\"%s\\\" in location \\\"%s\\\" has '\\n 'changed length since an older event was recorded; '\\n 'ignoring the unusable group answer.', usage_id,\\n unit_responses.get('location', ''))\",\n \" return []\",\n \" for q_id, seq, answer, q_type, q_score in zip(\\n q_ids, seqs, answers, types, scores):\\n\\n # Here, we are guessing at the actual weight, since the\\n # weight for each question is not supplied in the event.\\n # We do, however, have the question ID, so if that question\\n # is still part of the question group, we can use the current\\n # weight value.\",\n \" weight_in_group = 1.0\",\n \" for item in group_to_questions.get(info['id'], []):\\n if item['question'] == q_id:\\n weight_in_group = item['weight']\",\n \" if item['question'] == q_id:\\n weight_in_group = item['weight']\",\n \" weight_in_group = item['weight']\",\n \" weighted_score = q_score * weight_in_group * assessment_weight\",\n \" ret.append(QuestionAnswerInfo(\\n info['unit'], info['lesson'], info['sequence'] + int(seq),\\n q_id, q_type, timestamp, answer, q_score, weighted_score,\\n tallied=True))\",\n \" return ret\",\n \"def unpack_student_answer_1_5(questions_info, valid_question_ids,\\n assessment_weights, group_to_questions,\\n unit_responses, timestamp):\\n \\\"\\\"\\\"Unpack JSON from event; convert to QuestionAnswerInfo objects.\\n\\n The JSON for events is unusually shaped; function regularizes it\\n into plain-old-data objects. Also translates from question-usage ID\\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\",\n \" \\\"\\\"\\\"Unpack JSON from event; convert to QuestionAnswerInfo objects.\\n\\n The JSON for events is unusually shaped; function regularizes it\\n into plain-old-data objects. Also translates from question-usage ID\\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\\n assumption that a question will only be used once per lesson). Note\\n that this function flattens question groups, unpacking everything as\\n a single array of questions.\",\n \" ret = []\",\n \" contained_types = unit_responses['containedTypes']\",\n \" for usage_id, answers in unit_responses['answers'].items():\\n if usage_id == 'version': # Found in graded assessments.\\n continue\\n if usage_id not in questions_info:\\n logging.info('Question or question-group ID \\\"%s\\\" in event is '\\n 'no longer present', usage_id)\\n continue # Skip items from no-longer-present questions.\",\n \" if usage_id == 'version': # Found in graded assessments.\\n continue\",\n \" if usage_id not in questions_info:\\n logging.info('Question or question-group ID \\\"%s\\\" in event is '\\n 'no longer present', usage_id)\\n continue # Skip items from no-longer-present questions.\",\n \" logging.info('Question or question-group ID \\\"%s\\\" in event is '\\n 'no longer present', usage_id)\",\n \" info = questions_info[usage_id]\",\n \" types = contained_types[usage_id]\",\n \" score = unit_responses['individualScores'][usage_id]\",\n \" unit_id = info['unit']\",\n \" assessment_weight = assessment_weights.get(str(unit_id), 1.0)\",\n \" if types == 'McQuestion' or types == 'SaQuestion':\\n ret.extend(_unpack_single_question_answer_1_5(\\n info, types, score, assessment_weight, timestamp, answers,\\n valid_question_ids))\\n\\n # Question group. Fetch IDs of sub-questions, which are packed as\\n # <group-usage-id>.<sequence>.<question-id>.\\n # Order by <sequence>, which is 0-based within question-group.\",\n \" ret.extend(_unpack_single_question_answer_1_5(\\n info, types, score, assessment_weight, timestamp, answers,\\n valid_question_ids))\",\n \" elif isinstance(types, list):\\n ret.extend(_unpack_question_group_answer_1_5(\\n info, types, score, assessment_weight, timestamp, answers,\\n usage_id, unit_responses, group_to_questions,\\n valid_question_ids))\",\n \" ret.extend(_unpack_question_group_answer_1_5(\\n info, types, score, assessment_weight, timestamp, answers,\\n usage_id, unit_responses, group_to_questions,\\n valid_question_ids))\",\n \" return ret\",\n \"def unpack_check_answers(\\n content, questions_info, valid_question_ids, assessment_weights,\\n group_to_questions, timestamp):\\n \\\"\\\"\\\"Parse check-answers submissions for ungraded questions.\\n\\n The JSON for events is unusually shaped; function regularizes it\\n into plain-old-data objects. Also translates from question-usage ID\\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\",\n \" \\\"\\\"\\\"Parse check-answers submissions for ungraded questions.\\n\\n The JSON for events is unusually shaped; function regularizes it\\n into plain-old-data objects. Also translates from question-usage ID\\n to unit_id/lesson_id/question_id. (Note that this makes the reasonable\\n assumption that a question will only be used once per lesson). Note\\n that this function flattens question groups, unpacking everything as\\n a single array of questions.\",\n \" qtype = content.get('type')\",\n \" usage_id = content['instanceid']\",\n \" if usage_id not in questions_info:\\n logging.info('Question or question-group ID \\\"%s\\\" in event is '\\n 'no longer present', usage_id)\\n return []\",\n \" logging.info('Question or question-group ID \\\"%s\\\" in event is '\\n 'no longer present', usage_id)\",\n \" return []\",\n \" info = questions_info[usage_id]\",\n \" assessment_weight = assessment_weights.get(info['unit'], 1.0)\",\n \" if qtype == 'SaQuestion' or qtype == 'McQuestion':\\n if info['id'] not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring data for it.', info['id'])\\n return []\\n score = content.get('score', 0.0)\\n weighted_score = score * info['weight'] * assessment_weight\\n answers = [QuestionAnswerInfo(\",\n \" if info['id'] not in valid_question_ids:\\n logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring data for it.', info['id'])\\n return []\",\n \" logging.info('Question with ID \\\"%s\\\" is no longer present; '\\n 'ignoring data for it.', info['id'])\",\n \" return []\",\n \" score = content.get('score', 0.0)\",\n \" weighted_score = score * info['weight'] * assessment_weight\",\n \" answers = [QuestionAnswerInfo(\\n info['unit'], info['lesson'], info['sequence'], info['id'], qtype,\\n timestamp, content['answer'], score, weighted_score, tallied=False)]\",\n \" elif qtype == 'QuestionGroup':\\n values = content.get('answer')\\n scores = content.get('individualScores')\\n types = content.get('containedTypes')\\n\\n # Here, we have to hope that the length and order of questions within\\n # a group has not changed since the event was recorded, as the events\\n # do not record the question ID within the group. We just assume that\",\n \" values = content.get('answer')\",\n \" scores = content.get('individualScores')\",\n \" types = content.get('containedTypes')\",\n \" group_id = questions_info[usage_id]['id']\",\n \" if group_id not in group_to_questions:\\n logging.info(\\n 'Question group with ID %s is referenced in an event, but '\\n 'is no longer present in the course. Ignoring the unusable '\\n 'question group answer.', group_id)\\n return []\",\n \" logging.info(\\n 'Question group with ID %s is referenced in an event, but '\\n 'is no longer present in the course. Ignoring the unusable '\\n 'question group answer.', group_id)\",\n \" return []\",\n \" q_infos = group_to_questions.get(group_id, [])\",\n \" if len(q_infos) != len(values):\\n logging.info('Ignoring event for question group \\\"%s\\\": '\\n 'This group currently has length %d, '\\n 'but event has length %d.', usage_id,\\n len(q_infos), len(values))\\n return []\",\n \" logging.info('Ignoring event for question group \\\"%s\\\": '\\n 'This group currently has length %d, '\\n 'but event has length %d.', usage_id,\\n len(q_infos), len(values))\",\n \" return []\",\n \" answers = []\",\n \" i = 0\",\n \" for q_info, val, score, qtype in zip(q_infos, values, scores, types):\\n weighted_score = score * q_info['weight'] * assessment_weight\\n answers.append(QuestionAnswerInfo(\\n info['unit'], info['lesson'], info['sequence'] + i,\\n q_info['question'], qtype, timestamp, val, score,\\n weighted_score, tallied=False))\\n i += 1\",\n \" weighted_score = score * q_info['weight'] * assessment_weight\",\n \" answers.append(QuestionAnswerInfo(\\n info['unit'], info['lesson'], info['sequence'] + i,\\n q_info['question'], qtype, timestamp, val, score,\\n weighted_score, tallied=False))\",\n \" logging.warning('Not handling unknown question or group type \\\"%s\\\"',\\n qtype)\",\n \" answers = []\",\n \" return answers\",\n \"def _add_questions_from_html(\\n questions_by_usage_id, unit_id, lesson_id, html, question_group_lengths):\\n \\\"\\\"\\\"Parse rich-text HTML and add questions found to map by ID.\\\"\\\"\\\"\\n\\n sequence_counter = 0\\n for component in tags.get_components_from_html(html):\\n if component['cpt_name'] == 'question':\\n questions_by_usage_id[component['instanceid']] = {\",\n \" \\\"\\\"\\\"Parse rich-text HTML and add questions found to map by ID.\\\"\\\"\\\"\",\n \" sequence_counter = 0\",\n \" for component in tags.get_components_from_html(html):\\n if component['cpt_name'] == 'question':\\n questions_by_usage_id[component['instanceid']] = {\\n 'unit': unit_id,\\n 'lesson': lesson_id,\\n 'sequence': sequence_counter,\\n 'id': component['quid'],\\n 'weight': float(component.get('weight', 1.0)),\",\n \" if component['cpt_name'] == 'question':\\n questions_by_usage_id[component['instanceid']] = {\\n 'unit': unit_id,\\n 'lesson': lesson_id,\\n 'sequence': sequence_counter,\\n 'id': component['quid'],\\n 'weight': float(component.get('weight', 1.0)),\\n }\",\n \" questions_by_usage_id[component['instanceid']] = {\\n 'unit': unit_id,\\n 'lesson': lesson_id,\\n 'sequence': sequence_counter,\\n 'id': component['quid'],\\n 'weight': float(component.get('weight', 1.0)),\\n }\",\n \" elif component['cpt_name'] == 'question-group':\\n questions_by_usage_id[component['instanceid']] = {\\n 'unit': unit_id,\\n 'lesson': lesson_id,\\n 'sequence': sequence_counter,\\n 'id': component['qgid'],\\n }\\n if component['qgid'] in question_group_lengths:\",\n \" questions_by_usage_id[component['instanceid']] = {\\n 'unit': unit_id,\\n 'lesson': lesson_id,\\n 'sequence': sequence_counter,\\n 'id': component['qgid'],\\n }\",\n \" if component['qgid'] in question_group_lengths:\\n sequence_counter += (\\n question_group_lengths[component['qgid']])\",\n \"def get_questions_by_usage_id(app_context):\\n \\\"\\\"\\\"Build map: question-usage-ID to {question ID, unit ID, sequence}.\\n\\n When a question or question-group is mentioned on a CourseBuilder\\n HTML page, it is identified by a unique opaque ID which indicates\\n *that usage* of a particular question.\\n\\n Args:\",\n \" \\\"\\\"\\\"Build map: question-usage-ID to {question ID, unit ID, sequence}.\\n\\n When a question or question-group is mentioned on a CourseBuilder\\n HTML page, it is identified by a unique opaque ID which indicates\\n *that usage* of a particular question.\\n\\n Args:\\n app_context: Normal context object giving namespace, etc.\",\n \" questions_by_usage_id = {}\",\n \" question_group_lengths = {}\",\n \" for group in models.QuestionGroupDAO.get_all():\\n question_group_lengths[str(group.id)] = (\\n len(group.question_ids))\",\n \" question_group_lengths[str(group.id)] = (\\n len(group.question_ids))\",\n \" course = courses.Course(None, app_context)\",\n \" for unit in course.get_units():\\n _add_questions_from_html(questions_by_usage_id, unit.unit_id, None,\\n unit.html_content, question_group_lengths)\\n for lesson in course.get_lessons(unit.unit_id):\\n _add_questions_from_html(questions_by_usage_id, unit.unit_id,\\n lesson.lesson_id, lesson.objectives,\\n question_group_lengths)\",\n \" _add_questions_from_html(questions_by_usage_id, unit.unit_id, None,\\n unit.html_content, question_group_lengths)\",\n \" for lesson in course.get_lessons(unit.unit_id):\\n _add_questions_from_html(questions_by_usage_id, unit.unit_id,\\n lesson.lesson_id, lesson.objectives,\\n question_group_lengths)\",\n \" _add_questions_from_html(questions_by_usage_id, unit.unit_id,\\n lesson.lesson_id, lesson.objectives,\\n question_group_lengths)\",\n \" return questions_by_usage_id\",\n \"def get_assessment_weights(app_context):\\n ret = {}\\n course = courses.Course(None, app_context)\\n for unit in course.get_units():\\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n ret[str(unit.unit_id)] = float(unit.weight)\\n return ret\",\n \" ret = {}\",\n \" course = courses.Course(None, app_context)\",\n \" for unit in course.get_units():\\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n ret[str(unit.unit_id)] = float(unit.weight)\",\n \" if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n ret[str(unit.unit_id)] = float(unit.weight)\",\n \" ret[str(unit.unit_id)] = float(unit.weight)\",\n \" return ret\",\n \"def get_group_to_questions():\\n ret = {}\\n for group in models.QuestionGroupDAO.get_all():\\n items = group.items\\n for element in items:\\n element['question'] = str(element['question'])\\n element['weight'] = float(element['weight'])\\n ret[str(group.id)] = items\",\n \" ret = {}\",\n \" for group in models.QuestionGroupDAO.get_all():\\n items = group.items\\n for element in items:\\n element['question'] = str(element['question'])\\n element['weight'] = float(element['weight'])\\n ret[str(group.id)] = items\",\n \" items = group.items\",\n \" for element in items:\\n element['question'] = str(element['question'])\\n element['weight'] = float(element['weight'])\",\n \" element['question'] = str(element['question'])\",\n \" element['weight'] = float(element['weight'])\",\n \" ret[str(group.id)] = items\",\n \" return ret\",\n \"def get_unscored_lesson_ids(app_context):\\n ret = []\\n for lesson in courses.Course(None, app_context).get_lessons_for_all_units():\\n if not lesson.scored:\\n ret.append(lesson.lesson_id)\\n return ret\",\n \" ret = []\",\n \" for lesson in courses.Course(None, app_context).get_lessons_for_all_units():\\n if not lesson.scored:\\n ret.append(lesson.lesson_id)\",\n \" if not lesson.scored:\\n ret.append(lesson.lesson_id)\",\n \" ret.append(lesson.lesson_id)\",\n \" return ret\",\n \"def get_valid_question_ids():\\n ret = []\\n for question in models.QuestionDAO.get_all():\\n ret.append(str(question.id))\\n return ret\",\n \" ret = []\",\n \" for question in models.QuestionDAO.get_all():\\n ret.append(str(question.id))\",\n \" ret.append(str(question.id))\",\n \" return ret\"\n]","isConversational":false}}},{"rowIdx":4781,"cells":{"code":{"kind":"string","value":"# Copyright 2012 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Review processor that is used for managing human-reviewed assessments.\"\"\"\n\n__author__ = [\n 'sll@google.com (Sean Lip)',\n]\n\nimport entities\nimport student_work\nimport transforms\n\nfrom modules.review import domain\n\n# Indicates that a human-graded assessment is peer-graded.\nPEER_MATCHER = 'peer'\n\n# Allowed matchers.\nALLOWED_MATCHERS = [PEER_MATCHER]\n\n\nclass ReviewsProcessor(object):\n \"\"\"A class that processes review arrangements.\"\"\"\n\n TYPE_IMPL_MAPPING = {\n PEER_MATCHER: None,\n }\n\n @classmethod\n def set_peer_matcher(cls, matcher):\n cls.TYPE_IMPL_MAPPING[PEER_MATCHER] = matcher\n\n def __init__(self, course):\n self._course = course\n\n def _get_course(self):\n return self._course\n\n def _get_impl(self, unit_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n return self.TYPE_IMPL_MAPPING[unit.workflow.get_matcher()]\n\n def _get_review_step_keys_by(self, unit_id, reviewer_key):\n impl = self._get_impl(unit_id)\n return impl.get_review_step_keys_by(str(unit_id), reviewer_key)\n\n def _get_submission_and_review_step_keys(self, unit_id, reviewee_key):\n impl = self._get_impl(unit_id)\n return impl.get_submission_and_review_step_keys(\n str(unit_id), reviewee_key)\n\n def add_reviewer(self, unit_id, reviewee_key, reviewer_key):\n submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\n impl = self._get_impl(unit_id)\n return impl.add_reviewer(\n str(unit_id), submission_key, reviewee_key, reviewer_key)\n\n def delete_reviewer(self, unit_id, review_step_key):\n impl = self._get_impl(unit_id)\n return impl.delete_reviewer(review_step_key)\n\n def get_new_review(self, unit_id, reviewer_key):\n impl = self._get_impl(unit_id)\n return impl.get_new_review(str(unit_id), reviewer_key)\n\n def get_review_steps_by(self, unit_id, reviewer_key):\n review_step_keys = self._get_review_step_keys_by(unit_id, reviewer_key)\n return self.get_review_steps_by_keys(unit_id, review_step_keys)\n\n def get_reviews_by_keys(\n self, unit_id, review_keys, handle_empty_keys=False):\n \"\"\"Gets a list of reviews, given their review keys.\n\n If handle_empty_keys is True, then no error is thrown on supplied keys\n that are None; the elements in the result list corresponding to those\n keys simply return None. This usually arises when this method is called\n immediately after get_review_steps_by_keys().\n\n Args:\n unit_id: string. Id of the unit to get the reviews for.\n review_keys: [db.Key of peer.ReviewStep]. May include None, if\n handle_empty_keys is True.\n handle_empty_keys: if True, the return value contains None for keys\n that are None. If False, the method throws if empty keys are\n supplied.\n\n Returns:\n List with the same number of elements as review_keys. It contains:\n - the JSON-decoded contents of the review corresponding to that\n review_key, or\n - None if either:\n - no review has been submitted for that review key, or\n - handle_empty_keys == True and the review_key is None.\n \"\"\"\n impl = self._get_impl(unit_id)\n reviews = []\n if not handle_empty_keys:\n reviews = impl.get_reviews_by_keys(review_keys)\n else:\n nonempty_review_indices = []\n nonempty_review_keys = []\n for idx, review_key in enumerate(review_keys):\n if review_key is not None:\n nonempty_review_indices.append(idx)\n nonempty_review_keys.append(review_key)\n\n tmp_reviews = impl.get_reviews_by_keys(nonempty_review_keys)\n reviews = [None] * len(review_keys)\n for (i, idx) in enumerate(nonempty_review_indices):\n reviews[idx] = tmp_reviews[i]\n\n return [(transforms.loads(rev.contents) if rev else None)\n for rev in reviews]\n\n def get_review_steps_by_keys(self, unit_id, review_step_keys):\n impl = self._get_impl(unit_id)\n return impl.get_review_steps_by_keys(review_step_keys)\n\n def get_submission_and_review_steps(self, unit_id, reviewee_key):\n \"\"\"Gets the submission and a list of review steps for a unit/reviewee.\n\n Note that review steps marked removed are included in the result set.\n\n Args:\n unit_id: string. Id of the unit to get the data for.\n reviewee_key: db.Key of models.models.Student. The student to get\n the data for.\n\n Returns:\n - None if no submission was found for the given unit_id,\n reviewee_key pair.\n - (Object, [peer.ReviewStep]) otherwise. The first element is the\n de-JSONified content of the reviewee's submission. The second\n element is a list of review steps for this submission, sorted\n by creation date.\n \"\"\"\n\n submission_and_review_step_keys = (\n self._get_submission_and_review_step_keys(unit_id, reviewee_key))\n if submission_and_review_step_keys is None:\n return None\n\n submission_contents = student_work.Submission.get_contents_by_key(\n submission_and_review_step_keys[0])\n review_step_keys = submission_and_review_step_keys[1]\n sorted_review_steps = sorted(\n self.get_review_steps_by_keys(unit_id, review_step_keys),\n key=lambda r: r.create_date)\n return [submission_contents, sorted_review_steps]\n\n def does_submission_exist(self, unit_id, reviewee_key):\n submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\n return bool(entities.get(submission_key))\n\n def start_review_process_for(self, unit_id, submission_key, reviewee_key):\n impl = self._get_impl(unit_id)\n return impl.start_review_process_for(\n str(unit_id), submission_key, reviewee_key)\n\n def write_review(\n self, unit_id, review_step_key, review_payload, mark_completed):\n impl = self._get_impl(unit_id)\n return impl.write_review(\n review_step_key, transforms.dumps(review_payload),\n mark_completed=mark_completed)\n\n\nclass ReviewUtils(object):\n \"\"\"A utility class for processing data relating to assessment reviews.\"\"\"\n\n @classmethod\n def count_completed_reviews(cls, review_steps):\n \"\"\"Counts the number of completed reviews in the given set.\"\"\"\n count = 0\n for review_step in review_steps:\n if review_step.state == domain.REVIEW_STATE_COMPLETED:\n count += 1\n return count\n\n @classmethod\n def has_completed_all_assigned_reviews(cls, review_steps):\n \"\"\"Returns whether the student has completed all assigned reviews.\"\"\"\n for review_step in review_steps:\n if review_step.state != domain.REVIEW_STATE_COMPLETED:\n return False\n return True\n\n @classmethod\n def has_completed_enough_reviews(cls, reviews, review_min_count):\n \"\"\"Checks whether the review count is at least the minimum required.\"\"\"\n return cls.count_completed_reviews(reviews) >= review_min_count\n\n @classmethod\n def get_review_progress(\n cls, review_steps, review_min_count, progress_tracker):\n \"\"\"Gets the progress value based on the number of reviews done.\n\n Args:\n review_steps: a list of ReviewStep objects.\n review_min_count: the minimum number of reviews that the student is\n required to complete for this assessment.\n progress_tracker: the course progress tracker.\n\n Returns:\n the corresponding progress value: 0 (not started), 1 (in progress) or\n 2 (completed).\n \"\"\"\n completed_reviews = cls.count_completed_reviews(review_steps)\n\n if cls.has_completed_enough_reviews(review_steps, review_min_count):\n return progress_tracker.COMPLETED_STATE\n elif completed_reviews > 0:\n return progress_tracker.IN_PROGRESS_STATE\n else:\n return progress_tracker.NOT_STARTED_STATE\n"},"vector":{"kind":"list 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1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 4,\n 0.9912,\n 0.0044,\n 4,\n 0.24,\n 0,\n 0,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 4,\n 1,\n 0.0044,\n 4,\n 0.24,\n 1,\n 0,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Review processor that is used for managing human-reviewed assessments.\"\"\"","__author__ = [\n 'sll@google.com (Sean Lip)',\n]","import entities","import student_work","import transforms","from modules.review import domain","PEER_MATCHER = 'peer'","ALLOWED_MATCHERS = [PEER_MATCHER]","class ReviewsProcessor(object):\n \"\"\"A class that processes review arrangements.\"\"\"\n\n TYPE_IMPL_MAPPING = {\n PEER_MATCHER: None,\n }\n\n @classmethod"," \"\"\"A class that processes review arrangements.\"\"\""," TYPE_IMPL_MAPPING = {\n PEER_MATCHER: None,\n }"," def set_peer_matcher(cls, matcher):\n cls.TYPE_IMPL_MAPPING[PEER_MATCHER] = matcher"," cls.TYPE_IMPL_MAPPING[PEER_MATCHER] = matcher"," def __init__(self, course):\n self._course = course"," self._course = course"," def _get_course(self):\n return self._course"," return self._course"," def _get_impl(self, unit_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n return self.TYPE_IMPL_MAPPING[unit.workflow.get_matcher()]"," unit = self._get_course().find_unit_by_id(unit_id)"," return self.TYPE_IMPL_MAPPING[unit.workflow.get_matcher()]"," def _get_review_step_keys_by(self, unit_id, reviewer_key):\n impl = self._get_impl(unit_id)\n return impl.get_review_step_keys_by(str(unit_id), reviewer_key)"," impl = self._get_impl(unit_id)"," return impl.get_review_step_keys_by(str(unit_id), reviewer_key)"," def _get_submission_and_review_step_keys(self, unit_id, reviewee_key):\n impl = self._get_impl(unit_id)\n return impl.get_submission_and_review_step_keys(\n str(unit_id), reviewee_key)"," impl = self._get_impl(unit_id)"," return impl.get_submission_and_review_step_keys(\n str(unit_id), reviewee_key)"," def add_reviewer(self, unit_id, reviewee_key, reviewer_key):\n submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\n impl = self._get_impl(unit_id)\n return impl.add_reviewer(\n str(unit_id), submission_key, reviewee_key, reviewer_key)"," submission_key = student_work.Submission.get_key(unit_id, reviewee_key)"," impl = self._get_impl(unit_id)"," return impl.add_reviewer(\n str(unit_id), submission_key, reviewee_key, reviewer_key)"," def delete_reviewer(self, unit_id, review_step_key):\n impl = self._get_impl(unit_id)\n return impl.delete_reviewer(review_step_key)"," impl = self._get_impl(unit_id)"," return impl.delete_reviewer(review_step_key)"," def get_new_review(self, unit_id, reviewer_key):\n impl = self._get_impl(unit_id)\n return impl.get_new_review(str(unit_id), reviewer_key)"," impl = self._get_impl(unit_id)"," return impl.get_new_review(str(unit_id), reviewer_key)"," def get_review_steps_by(self, unit_id, reviewer_key):\n review_step_keys = self._get_review_step_keys_by(unit_id, reviewer_key)\n return self.get_review_steps_by_keys(unit_id, review_step_keys)"," review_step_keys = self._get_review_step_keys_by(unit_id, reviewer_key)"," return self.get_review_steps_by_keys(unit_id, review_step_keys)"," def get_reviews_by_keys(\n self, unit_id, review_keys, handle_empty_keys=False):\n \"\"\"Gets a list of reviews, given their review keys.\n\n If handle_empty_keys is True, then no error is thrown on supplied keys\n that are None; the elements in the result list corresponding to those\n keys simply return None. This usually arises when this method is called\n immediately after get_review_steps_by_keys()."," \"\"\"Gets a list of reviews, given their review keys.\n\n If handle_empty_keys is True, then no error is thrown on supplied keys\n that are None; the elements in the result list corresponding to those\n keys simply return None. This usually arises when this method is called\n immediately after get_review_steps_by_keys().\n\n Args:"," impl = self._get_impl(unit_id)"," reviews = []"," if not handle_empty_keys:\n reviews = impl.get_reviews_by_keys(review_keys)\n else:\n nonempty_review_indices = []\n nonempty_review_keys = []\n for idx, review_key in enumerate(review_keys):\n if review_key is not None:\n nonempty_review_indices.append(idx)"," reviews = impl.get_reviews_by_keys(review_keys)"," nonempty_review_indices = []"," nonempty_review_keys = []"," for idx, review_key in enumerate(review_keys):\n if review_key is not None:\n nonempty_review_indices.append(idx)\n nonempty_review_keys.append(review_key)"," if review_key is not None:\n nonempty_review_indices.append(idx)\n nonempty_review_keys.append(review_key)"," nonempty_review_indices.append(idx)"," nonempty_review_keys.append(review_key)"," tmp_reviews = impl.get_reviews_by_keys(nonempty_review_keys)"," reviews = [None] * len(review_keys)"," for (i, idx) in enumerate(nonempty_review_indices):\n reviews[idx] = tmp_reviews[i]"," reviews[idx] = tmp_reviews[i]"," return [(transforms.loads(rev.contents) if rev else None)\n for rev in reviews]"," def get_review_steps_by_keys(self, unit_id, review_step_keys):\n impl = self._get_impl(unit_id)\n return impl.get_review_steps_by_keys(review_step_keys)"," impl = self._get_impl(unit_id)"," return impl.get_review_steps_by_keys(review_step_keys)"," def get_submission_and_review_steps(self, unit_id, reviewee_key):\n \"\"\"Gets the submission and a list of review steps for a unit/reviewee.\n\n Note that review steps marked removed are included in the result set.\n\n Args:\n unit_id: string. Id of the unit to get the data for.\n reviewee_key: db.Key of models.models.Student. The student to get"," \"\"\"Gets the submission and a list of review steps for a unit/reviewee.\n\n Note that review steps marked removed are included in the result set.\n\n Args:\n unit_id: string. Id of the unit to get the data for.\n reviewee_key: db.Key of models.models.Student. The student to get\n the data for."," submission_and_review_step_keys = (\n self._get_submission_and_review_step_keys(unit_id, reviewee_key))"," if submission_and_review_step_keys is None:\n return None"," return None"," submission_contents = student_work.Submission.get_contents_by_key(\n submission_and_review_step_keys[0])"," review_step_keys = submission_and_review_step_keys[1]"," sorted_review_steps = sorted(\n self.get_review_steps_by_keys(unit_id, review_step_keys),\n key=lambda r: r.create_date)"," return [submission_contents, sorted_review_steps]"," def does_submission_exist(self, unit_id, reviewee_key):\n submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\n return bool(entities.get(submission_key))"," submission_key = student_work.Submission.get_key(unit_id, reviewee_key)"," return bool(entities.get(submission_key))"," def start_review_process_for(self, unit_id, submission_key, reviewee_key):\n impl = self._get_impl(unit_id)\n return impl.start_review_process_for(\n str(unit_id), submission_key, reviewee_key)"," impl = self._get_impl(unit_id)"," return impl.start_review_process_for(\n str(unit_id), submission_key, reviewee_key)"," def write_review(\n self, unit_id, review_step_key, review_payload, mark_completed):\n impl = self._get_impl(unit_id)\n return impl.write_review(\n review_step_key, transforms.dumps(review_payload),\n mark_completed=mark_completed)"," impl = self._get_impl(unit_id)"," return impl.write_review(\n review_step_key, transforms.dumps(review_payload),\n mark_completed=mark_completed)","class ReviewUtils(object):\n \"\"\"A utility class for processing data relating to assessment reviews.\"\"\"\n\n @classmethod\n def count_completed_reviews(cls, review_steps):\n \"\"\"Counts the number of completed reviews in the given set.\"\"\"\n count = 0\n for review_step in review_steps:"," \"\"\"A utility class for processing data relating to assessment reviews.\"\"\""," def count_completed_reviews(cls, review_steps):\n \"\"\"Counts the number of completed reviews in the given set.\"\"\"\n count = 0\n for review_step in review_steps:\n if review_step.state == domain.REVIEW_STATE_COMPLETED:\n count += 1\n return count"," \"\"\"Counts the number of completed reviews in the given set.\"\"\""," count = 0"," for review_step in review_steps:\n if review_step.state == domain.REVIEW_STATE_COMPLETED:\n count += 1"," if review_step.state == domain.REVIEW_STATE_COMPLETED:\n count += 1"," return count"," def has_completed_all_assigned_reviews(cls, review_steps):\n \"\"\"Returns whether the student has completed all assigned reviews.\"\"\"\n for review_step in review_steps:\n if review_step.state != domain.REVIEW_STATE_COMPLETED:\n return False\n return True"," \"\"\"Returns whether the student has completed all assigned reviews.\"\"\""," for review_step in review_steps:\n if review_step.state != domain.REVIEW_STATE_COMPLETED:\n return False"," if review_step.state != domain.REVIEW_STATE_COMPLETED:\n return False"," return False"," return True"," def has_completed_enough_reviews(cls, reviews, review_min_count):\n \"\"\"Checks whether the review count is at least the minimum required.\"\"\"\n return cls.count_completed_reviews(reviews) >= review_min_count"," \"\"\"Checks whether the review count is at least the minimum required.\"\"\""," return cls.count_completed_reviews(reviews) >= review_min_count"," def get_review_progress(\n cls, review_steps, review_min_count, progress_tracker):\n \"\"\"Gets the progress value based on the number of reviews done.\n\n Args:\n review_steps: a list of ReviewStep objects.\n review_min_count: the minimum number of reviews that the student is\n required to complete for this assessment."," \"\"\"Gets the progress value based on the number of reviews done.\n\n Args:\n review_steps: a list of ReviewStep objects.\n review_min_count: the minimum number of reviews that the student is\n required to complete for this assessment.\n progress_tracker: the course progress tracker."," completed_reviews = cls.count_completed_reviews(review_steps)"," if cls.has_completed_enough_reviews(review_steps, review_min_count):\n return progress_tracker.COMPLETED_STATE\n elif completed_reviews > 0:\n return progress_tracker.IN_PROGRESS_STATE\n else:\n return progress_tracker.NOT_STARTED_STATE"," return progress_tracker.COMPLETED_STATE"," elif completed_reviews > 0:\n return progress_tracker.IN_PROGRESS_STATE\n else:\n return progress_tracker.NOT_STARTED_STATE"," return progress_tracker.IN_PROGRESS_STATE"," return progress_tracker.NOT_STARTED_STATE"],"string":"[\n \"\\\"\\\"\\\"Review processor that is used for managing human-reviewed assessments.\\\"\\\"\\\"\",\n \"__author__ = [\\n 'sll@google.com (Sean Lip)',\\n]\",\n \"import entities\",\n \"import student_work\",\n \"import transforms\",\n \"from modules.review import domain\",\n \"PEER_MATCHER = 'peer'\",\n \"ALLOWED_MATCHERS = [PEER_MATCHER]\",\n \"class ReviewsProcessor(object):\\n \\\"\\\"\\\"A class that processes review arrangements.\\\"\\\"\\\"\\n\\n TYPE_IMPL_MAPPING = {\\n PEER_MATCHER: None,\\n }\\n\\n @classmethod\",\n \" \\\"\\\"\\\"A class that processes review arrangements.\\\"\\\"\\\"\",\n \" TYPE_IMPL_MAPPING = {\\n PEER_MATCHER: None,\\n }\",\n \" def set_peer_matcher(cls, matcher):\\n cls.TYPE_IMPL_MAPPING[PEER_MATCHER] = matcher\",\n \" cls.TYPE_IMPL_MAPPING[PEER_MATCHER] = matcher\",\n \" def __init__(self, course):\\n self._course = course\",\n \" self._course = course\",\n \" def _get_course(self):\\n return self._course\",\n \" return self._course\",\n \" def _get_impl(self, unit_id):\\n unit = self._get_course().find_unit_by_id(unit_id)\\n return self.TYPE_IMPL_MAPPING[unit.workflow.get_matcher()]\",\n \" unit = self._get_course().find_unit_by_id(unit_id)\",\n \" return self.TYPE_IMPL_MAPPING[unit.workflow.get_matcher()]\",\n \" def _get_review_step_keys_by(self, unit_id, reviewer_key):\\n impl = self._get_impl(unit_id)\\n return impl.get_review_step_keys_by(str(unit_id), reviewer_key)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.get_review_step_keys_by(str(unit_id), reviewer_key)\",\n \" def _get_submission_and_review_step_keys(self, unit_id, reviewee_key):\\n impl = self._get_impl(unit_id)\\n return impl.get_submission_and_review_step_keys(\\n str(unit_id), reviewee_key)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.get_submission_and_review_step_keys(\\n str(unit_id), reviewee_key)\",\n \" def add_reviewer(self, unit_id, reviewee_key, reviewer_key):\\n submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\\n impl = self._get_impl(unit_id)\\n return impl.add_reviewer(\\n str(unit_id), submission_key, reviewee_key, reviewer_key)\",\n \" submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.add_reviewer(\\n str(unit_id), submission_key, reviewee_key, reviewer_key)\",\n \" def delete_reviewer(self, unit_id, review_step_key):\\n impl = self._get_impl(unit_id)\\n return impl.delete_reviewer(review_step_key)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.delete_reviewer(review_step_key)\",\n \" def get_new_review(self, unit_id, reviewer_key):\\n impl = self._get_impl(unit_id)\\n return impl.get_new_review(str(unit_id), reviewer_key)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.get_new_review(str(unit_id), reviewer_key)\",\n \" def get_review_steps_by(self, unit_id, reviewer_key):\\n review_step_keys = self._get_review_step_keys_by(unit_id, reviewer_key)\\n return self.get_review_steps_by_keys(unit_id, review_step_keys)\",\n \" review_step_keys = self._get_review_step_keys_by(unit_id, reviewer_key)\",\n \" return self.get_review_steps_by_keys(unit_id, review_step_keys)\",\n \" def get_reviews_by_keys(\\n self, unit_id, review_keys, handle_empty_keys=False):\\n \\\"\\\"\\\"Gets a list of reviews, given their review keys.\\n\\n If handle_empty_keys is True, then no error is thrown on supplied keys\\n that are None; the elements in the result list corresponding to those\\n keys simply return None. This usually arises when this method is called\\n immediately after get_review_steps_by_keys().\",\n \" \\\"\\\"\\\"Gets a list of reviews, given their review keys.\\n\\n If handle_empty_keys is True, then no error is thrown on supplied keys\\n that are None; the elements in the result list corresponding to those\\n keys simply return None. This usually arises when this method is called\\n immediately after get_review_steps_by_keys().\\n\\n Args:\",\n \" impl = self._get_impl(unit_id)\",\n \" reviews = []\",\n \" if not handle_empty_keys:\\n reviews = impl.get_reviews_by_keys(review_keys)\\n else:\\n nonempty_review_indices = []\\n nonempty_review_keys = []\\n for idx, review_key in enumerate(review_keys):\\n if review_key is not None:\\n nonempty_review_indices.append(idx)\",\n \" reviews = impl.get_reviews_by_keys(review_keys)\",\n \" nonempty_review_indices = []\",\n \" nonempty_review_keys = []\",\n \" for idx, review_key in enumerate(review_keys):\\n if review_key is not None:\\n nonempty_review_indices.append(idx)\\n nonempty_review_keys.append(review_key)\",\n \" if review_key is not None:\\n nonempty_review_indices.append(idx)\\n nonempty_review_keys.append(review_key)\",\n \" nonempty_review_indices.append(idx)\",\n \" nonempty_review_keys.append(review_key)\",\n \" tmp_reviews = impl.get_reviews_by_keys(nonempty_review_keys)\",\n \" reviews = [None] * len(review_keys)\",\n \" for (i, idx) in enumerate(nonempty_review_indices):\\n reviews[idx] = tmp_reviews[i]\",\n \" reviews[idx] = tmp_reviews[i]\",\n \" return [(transforms.loads(rev.contents) if rev else None)\\n for rev in reviews]\",\n \" def get_review_steps_by_keys(self, unit_id, review_step_keys):\\n impl = self._get_impl(unit_id)\\n return impl.get_review_steps_by_keys(review_step_keys)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.get_review_steps_by_keys(review_step_keys)\",\n \" def get_submission_and_review_steps(self, unit_id, reviewee_key):\\n \\\"\\\"\\\"Gets the submission and a list of review steps for a unit/reviewee.\\n\\n Note that review steps marked removed are included in the result set.\\n\\n Args:\\n unit_id: string. Id of the unit to get the data for.\\n reviewee_key: db.Key of models.models.Student. The student to get\",\n \" \\\"\\\"\\\"Gets the submission and a list of review steps for a unit/reviewee.\\n\\n Note that review steps marked removed are included in the result set.\\n\\n Args:\\n unit_id: string. Id of the unit to get the data for.\\n reviewee_key: db.Key of models.models.Student. The student to get\\n the data for.\",\n \" submission_and_review_step_keys = (\\n self._get_submission_and_review_step_keys(unit_id, reviewee_key))\",\n \" if submission_and_review_step_keys is None:\\n return None\",\n \" return None\",\n \" submission_contents = student_work.Submission.get_contents_by_key(\\n submission_and_review_step_keys[0])\",\n \" review_step_keys = submission_and_review_step_keys[1]\",\n \" sorted_review_steps = sorted(\\n self.get_review_steps_by_keys(unit_id, review_step_keys),\\n key=lambda r: r.create_date)\",\n \" return [submission_contents, sorted_review_steps]\",\n \" def does_submission_exist(self, unit_id, reviewee_key):\\n submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\\n return bool(entities.get(submission_key))\",\n \" submission_key = student_work.Submission.get_key(unit_id, reviewee_key)\",\n \" return bool(entities.get(submission_key))\",\n \" def start_review_process_for(self, unit_id, submission_key, reviewee_key):\\n impl = self._get_impl(unit_id)\\n return impl.start_review_process_for(\\n str(unit_id), submission_key, reviewee_key)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.start_review_process_for(\\n str(unit_id), submission_key, reviewee_key)\",\n \" def write_review(\\n self, unit_id, review_step_key, review_payload, mark_completed):\\n impl = self._get_impl(unit_id)\\n return impl.write_review(\\n review_step_key, transforms.dumps(review_payload),\\n mark_completed=mark_completed)\",\n \" impl = self._get_impl(unit_id)\",\n \" return impl.write_review(\\n review_step_key, transforms.dumps(review_payload),\\n mark_completed=mark_completed)\",\n \"class ReviewUtils(object):\\n \\\"\\\"\\\"A utility class for processing data relating to assessment reviews.\\\"\\\"\\\"\\n\\n @classmethod\\n def count_completed_reviews(cls, review_steps):\\n \\\"\\\"\\\"Counts the number of completed reviews in the given set.\\\"\\\"\\\"\\n count = 0\\n for review_step in review_steps:\",\n \" \\\"\\\"\\\"A utility class for processing data relating to assessment reviews.\\\"\\\"\\\"\",\n \" def count_completed_reviews(cls, review_steps):\\n \\\"\\\"\\\"Counts the number of completed reviews in the given set.\\\"\\\"\\\"\\n count = 0\\n for review_step in review_steps:\\n if review_step.state == domain.REVIEW_STATE_COMPLETED:\\n count += 1\\n return count\",\n \" \\\"\\\"\\\"Counts the number of completed reviews in the given set.\\\"\\\"\\\"\",\n \" count = 0\",\n \" for review_step in review_steps:\\n if review_step.state == domain.REVIEW_STATE_COMPLETED:\\n count += 1\",\n \" if review_step.state == domain.REVIEW_STATE_COMPLETED:\\n count += 1\",\n \" return count\",\n \" def has_completed_all_assigned_reviews(cls, review_steps):\\n \\\"\\\"\\\"Returns whether the student has completed all assigned reviews.\\\"\\\"\\\"\\n for review_step in review_steps:\\n if review_step.state != domain.REVIEW_STATE_COMPLETED:\\n return False\\n return True\",\n \" \\\"\\\"\\\"Returns whether the student has completed all assigned reviews.\\\"\\\"\\\"\",\n \" for review_step in review_steps:\\n if review_step.state != domain.REVIEW_STATE_COMPLETED:\\n return False\",\n \" if review_step.state != domain.REVIEW_STATE_COMPLETED:\\n return False\",\n \" return False\",\n \" return True\",\n \" def has_completed_enough_reviews(cls, reviews, review_min_count):\\n \\\"\\\"\\\"Checks whether the review count is at least the minimum required.\\\"\\\"\\\"\\n return cls.count_completed_reviews(reviews) >= review_min_count\",\n \" \\\"\\\"\\\"Checks whether the review count is at least the minimum required.\\\"\\\"\\\"\",\n \" return cls.count_completed_reviews(reviews) >= review_min_count\",\n \" def get_review_progress(\\n cls, review_steps, review_min_count, progress_tracker):\\n \\\"\\\"\\\"Gets the progress value based on the number of reviews done.\\n\\n Args:\\n review_steps: a list of ReviewStep objects.\\n review_min_count: the minimum number of reviews that the student is\\n required to complete for this assessment.\",\n \" \\\"\\\"\\\"Gets the progress value based on the number of reviews done.\\n\\n Args:\\n review_steps: a list of ReviewStep objects.\\n review_min_count: the minimum number of reviews that the student is\\n required to complete for this assessment.\\n progress_tracker: the course progress tracker.\",\n \" completed_reviews = cls.count_completed_reviews(review_steps)\",\n \" if cls.has_completed_enough_reviews(review_steps, review_min_count):\\n return progress_tracker.COMPLETED_STATE\\n elif completed_reviews > 0:\\n return progress_tracker.IN_PROGRESS_STATE\\n else:\\n return progress_tracker.NOT_STARTED_STATE\",\n \" return progress_tracker.COMPLETED_STATE\",\n \" elif completed_reviews > 0:\\n return progress_tracker.IN_PROGRESS_STATE\\n else:\\n return progress_tracker.NOT_STARTED_STATE\",\n \" return progress_tracker.IN_PROGRESS_STATE\",\n \" return progress_tracker.NOT_STARTED_STATE\"\n]","isConversational":false}}},{"rowIdx":4782,"cells":{"code":{"kind":"string","value":"# Copyright 2012 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Virtual file system for managing files locally or in the cloud.\"\"\"\n\n__author__ = 'Pavel Simakov (psimakov@google.com)'\n\nimport datetime\nimport os\nimport re\nimport sys\nimport threading\nimport unittest\n\nfrom config import ConfigProperty\nfrom counters import PerfCounter\nfrom entities import BaseEntity\nfrom entities import put as entities_put\nimport jinja2\n\nfrom common import caching\nfrom common import jinja_utils\n\nfrom google.appengine.api import namespace_manager\nfrom google.appengine.ext import db\n\n\n# all caches must have limits\nMAX_GLOBAL_CACHE_SIZE_BYTES = 16 * 1024 * 1024\n\n# max size of each item; no point in storing images for example\nMAX_GLOBAL_CACHE_ITEM_SIZE_BYTES = 256 * 1024\n\n# The maximum number of bytes stored per VFS cache shard.\n_MAX_VFS_SHARD_SIZE = 1000 * 1000\n\n# Max number of shards for a single VFS cached file.\n_MAX_VFS_NUM_SHARDS = 4\n\n# Global memcache controls.\nCAN_USE_VFS_IN_PROCESS_CACHE = ConfigProperty(\n 'gcb_can_use_vfs_in_process_cache', bool, (\n 'Whether or not to cache content objects. For production this value '\n 'should be on to enable maximum performance. For development this '\n 'value should be off so you can see your changes to course content '\n 'instantaneously.'), default_value=True)\n\n\nclass AbstractFileSystem(object):\n \"\"\"A generic file system interface that forwards to an implementation.\"\"\"\n\n def __init__(self, impl):\n self._impl = impl\n self._readonly = False\n\n @property\n def impl(self):\n return self._impl\n\n @classmethod\n def normpath(cls, path):\n \"\"\"Make Windows and Linux filenames to have the same separator '/'.\"\"\"\n # Replace '\\' into '/' and force Unicode.\n if not path:\n return path\n return u'' + path.replace('\\\\', '/')\n\n def begin_readonly(self):\n \"\"\"Activates caching of resources and prevents mutations.\"\"\"\n self._assert_not_readonly()\n self._readonly = True\n\n def end_readonly(self):\n \"\"\"Deactivates caching of resources and enables mutations.\"\"\"\n if not self._readonly:\n raise Exception('Not readonly.')\n self._readonly = False\n\n @property\n def is_readonly(self):\n return self._readonly\n\n def _assert_not_readonly(self):\n if self._readonly:\n raise Exception(\n 'Unable to execute requested operation while readonly.')\n\n def isfile(self, filename):\n \"\"\"Checks if file exists, similar to os.path.isfile(...).\"\"\"\n return self._impl.isfile(filename)\n\n def open(self, filename):\n \"\"\"Returns a stream with the file content, similar to open(...).\"\"\"\n return self._impl.get(filename)\n\n def get(self, filename):\n \"\"\"Returns bytes with the file content, but no metadata.\"\"\"\n return self.open(filename).read()\n\n def put(self, filename, stream, **kwargs):\n \"\"\"Replaces the contents of the file with the bytes in the stream.\"\"\"\n self._assert_not_readonly()\n self._impl.put(filename, stream, **kwargs)\n\n def delete(self, filename):\n \"\"\"Deletes a file and metadata associated with it.\"\"\"\n self._assert_not_readonly()\n self._impl.delete(filename)\n\n def list(self, dir_name, include_inherited=False):\n \"\"\"Lists all files in a directory.\"\"\"\n return self._impl.list(dir_name, include_inherited)\n\n def get_jinja_environ(self, dir_names, autoescape=True):\n \"\"\"Configures jinja environment loaders for this file system.\"\"\"\n return self._impl.get_jinja_environ(dir_names, autoescape=autoescape)\n\n def is_read_write(self):\n return self._impl.is_read_write()\n\n def is_draft(self, stream):\n if not hasattr(stream, 'metadata'):\n return False\n if not stream.metadata:\n return False\n return stream.metadata.is_draft\n\n\nclass LocalReadOnlyFileSystem(object):\n \"\"\"A read-only file system serving only local files.\"\"\"\n\n def __init__(self, logical_home_folder=None, physical_home_folder=None):\n \"\"\"Creates a new instance of the disk-backed read-only file system.\n\n Args:\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\n physical_home_folder: A physical location on the file system (/x/y).\n\n Returns:\n A new instance of the object.\n \"\"\"\n self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)\n self._physical_home_folder = AbstractFileSystem.normpath(\n physical_home_folder)\n\n def _logical_to_physical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n if not (self._logical_home_folder and self._physical_home_folder):\n return filename\n filename = os.path.join(\n self._physical_home_folder,\n os.path.relpath(filename, self._logical_home_folder))\n return AbstractFileSystem.normpath(filename)\n\n def _physical_to_logical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n if not (self._logical_home_folder and self._physical_home_folder):\n return filename\n filename = os.path.join(\n self._logical_home_folder,\n os.path.relpath(filename, self._physical_home_folder))\n return AbstractFileSystem.normpath(filename)\n\n def isfile(self, filename):\n return os.path.isfile(self._logical_to_physical(filename))\n\n def get(self, filename):\n if not self.isfile(filename):\n return None\n return open(self._logical_to_physical(filename), 'rb')\n\n def put(self, unused_filename, unused_stream):\n raise Exception('Not implemented.')\n\n def delete(self, unused_filename):\n raise Exception('Not implemented.')\n\n # Need argument to be named exactly 'include_inherited' to match\n # keyword-parameter names from derived/related classes.\n # pylint: disable=unused-argument\n def list(self, root_dir, include_inherited=False):\n \"\"\"Lists all files in a directory.\"\"\"\n files = []\n for dirname, unused_dirnames, filenames in os.walk(\n self._logical_to_physical(root_dir)):\n for filename in filenames:\n files.append(\n self._physical_to_logical(os.path.join(dirname, filename)))\n return sorted(files)\n\n def get_jinja_environ(self, dir_names, autoescape=True):\n \"\"\"Configure the environment for Jinja templates.\"\"\"\n physical_dir_names = []\n for dir_name in dir_names:\n physical_dir_names.append(self._logical_to_physical(dir_name))\n\n return jinja_utils.create_jinja_environment(\n loader=jinja2.FileSystemLoader(physical_dir_names),\n autoescape=autoescape)\n\n def is_read_write(self):\n return False\n\n\nclass FileMetadataEntity(BaseEntity):\n \"\"\"An entity to represent a file metadata; absolute file name is a key.\"\"\"\n # TODO(psimakov): do we need 'version' to support concurrent updates\n # TODO(psimakov): can we put 'data' here and still have fast isfile/list?\n created_on = db.DateTimeProperty(auto_now_add=True, indexed=False)\n updated_on = db.DateTimeProperty(indexed=True)\n\n # Draft file is just as any other file. It's up to the consumer of the file\n # to decide whether to treat draft differently (not to serve it to the\n # public, for example). This class does not care and just stores the bit.\n is_draft = db.BooleanProperty(indexed=False)\n\n size = db.IntegerProperty(indexed=False)\n\n\nclass FileDataEntity(BaseEntity):\n \"\"\"An entity to represent file content; absolute file name is a key.\"\"\"\n data = db.BlobProperty()\n\n\nclass FileStreamWrapped(object):\n \"\"\"A class that wraps a file stream, but adds extra attributes to it.\"\"\"\n\n def __init__(self, metadata, data):\n self._metadata = metadata\n self._data = data\n\n def read(self):\n \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\"\n data = self._data\n self._data = ''\n return data\n\n @property\n def metadata(self):\n return self._metadata\n\n\nclass StringStream(object):\n \"\"\"A wrapper to pose a string as a UTF-8 byte stream.\"\"\"\n\n def __init__(self, text):\n self._data = unicode.encode(text, 'utf-8')\n\n def read(self):\n \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\"\n data = self._data\n self._data = ''\n return data\n\n\ndef string_to_stream(text):\n return StringStream(text)\n\n\ndef stream_to_string(stream):\n return stream.read().decode('utf-8')\n\n\nclass VirtualFileSystemTemplateLoader(jinja2.BaseLoader):\n \"\"\"Loader of jinja2 templates from a virtual file system.\"\"\"\n\n def __init__(self, fs, logical_home_folder, dir_names):\n self._fs = fs\n self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)\n self._dir_names = []\n if dir_names:\n for dir_name in dir_names:\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))\n\n def get_source(self, unused_environment, template):\n for dir_name in self._dir_names:\n filename = AbstractFileSystem.normpath(\n os.path.join(dir_name, template))\n stream = self._fs.open(filename)\n if stream:\n return stream.read().decode('utf-8'), filename, True\n raise jinja2.TemplateNotFound(template)\n\n def list_templates(self):\n all_templates = []\n for dir_name in self._dir_names:\n all_templates += self._fs.list(dir_name)\n return all_templates\n\n\nclass ProcessScopedVfsCache(caching.ProcessScopedSingleton):\n \"\"\"This class holds in-process global cache of VFS objects.\"\"\"\n\n @classmethod\n def get_vfs_cache_len(cls):\n # pylint: disable=protected-access\n return len(ProcessScopedVfsCache.instance()._cache.items.keys())\n\n @classmethod\n def get_vfs_cache_size(cls):\n # pylint: disable=protected-access\n return ProcessScopedVfsCache.instance()._cache.total_size\n\n def __init__(self):\n self._cache = caching.LRUCache(\n max_size_bytes=MAX_GLOBAL_CACHE_SIZE_BYTES,\n max_item_size_bytes=MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES)\n self._cache.get_entry_size = self._get_entry_size\n\n def _get_entry_size(self, key, value):\n return sys.getsizeof(key) + value.getsizeof() if value else 0\n\n @property\n def cache(self):\n return self._cache\n\n\nVFS_CACHE_LEN = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-len',\n 'A total number of items in vfs cache.')\nVFS_CACHE_SIZE_BYTES = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-bytes',\n 'A total size of items in vfs cache in bytes.')\n\nVFS_CACHE_LEN.poll_value = ProcessScopedVfsCache.get_vfs_cache_len\nVFS_CACHE_SIZE_BYTES.poll_value = ProcessScopedVfsCache.get_vfs_cache_size\n\n\nclass CacheFileEntry(caching.AbstractCacheEntry):\n \"\"\"Cache entry representing a file.\"\"\"\n\n def __init__(self, filename, metadata, body):\n self.filename = filename\n self.metadata = metadata\n self.body = body\n self.created_on = datetime.datetime.utcnow()\n\n def getsizeof(self):\n return (\n sys.getsizeof(self.filename) +\n sys.getsizeof(self.metadata) +\n sys.getsizeof(self.body) +\n sys.getsizeof(self.created_on))\n\n def is_up_to_date(self, key, update):\n metadata = update\n if not self.metadata and not metadata:\n return True\n if self.metadata and metadata:\n return (\n metadata.updated_on == self.metadata.updated_on and\n metadata.is_draft == self.metadata.is_draft)\n return False\n\n def updated_on(self):\n return self.metadata.updated_on\n\n @classmethod\n def externalize(cls, key, entry):\n return FileStreamWrapped(entry.metadata, entry.body)\n\n @classmethod\n def internalize(cls, key, metadata, data):\n if metadata and data:\n return CacheFileEntry(key, metadata, data)\n return None\n\n\nclass VfsCacheConnection(caching.AbstractCacheConnection):\n\n PERSISTENT_ENTITY = FileMetadataEntity\n CACHE_ENTRY = CacheFileEntry\n\n @classmethod\n def init_counters(cls):\n super(VfsCacheConnection, cls).init_counters()\n\n cls.CACHE_NO_METADATA = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-no-metadata',\n 'A number of times an object was requested, but was not found and '\n 'had no metadata.')\n cls.CACHE_INHERITED = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-inherited',\n 'A number of times an object was obtained from the inherited vfs.')\n\n @classmethod\n def is_enabled(cls):\n return CAN_USE_VFS_IN_PROCESS_CACHE.value\n\n def __init__(self, namespace):\n super(VfsCacheConnection, self).__init__(namespace)\n self.cache = ProcessScopedVfsCache.instance().cache\n\n\nVfsCacheConnection.init_counters()\n\n\nclass DatastoreBackedFileSystem(object):\n \"\"\"A read-write file system backed by a datastore.\"\"\"\n\n @classmethod\n def make_key(cls, filename):\n return 'vfs:dsbfs:%s' % filename\n\n def __init__(\n self, ns, logical_home_folder,\n inherits_from=None, inheritable_folders=None):\n \"\"\"Creates a new instance of the datastore-backed file system.\n\n Args:\n ns: A datastore namespace to use for storing all data and metadata.\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\n inherits_from: A file system to use for the inheritance.\n inheritable_folders: A list of folders that support inheritance.\n\n Returns:\n A new instance of the object.\n\n Raises:\n Exception: if invalid inherits_from is given.\n \"\"\"\n\n if inherits_from and not isinstance(\n inherits_from, LocalReadOnlyFileSystem):\n raise Exception('Can only inherit from LocalReadOnlyFileSystem.')\n\n self._ns = ns\n self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)\n self._inherits_from = inherits_from\n self._inheritable_folders = []\n self._cache = threading.local()\n\n if inheritable_folders:\n for folder in inheritable_folders:\n self._inheritable_folders.append(AbstractFileSystem.normpath(\n folder))\n\n def __getstate__(self):\n \"\"\"Remove transient members that can't survive pickling.\"\"\"\n # TODO(psimakov): we need to properly pickle app_context so vfs is not\n # being serialized at all\n state = self.__dict__.copy()\n if '_cache' in state:\n del state['_cache']\n return state\n\n def __setstate__(self, state_dict):\n \"\"\"Set persistent members and re-initialize transient members.\"\"\"\n self.__dict__ = state_dict\n self._cache = threading.local()\n\n def __getattribute__(self, name):\n attr = object.__getattribute__(self, name)\n\n # Don't intercept access to private methods and attributes.\n if name.startswith('_'):\n return attr\n\n # Do intercept all methods.\n if hasattr(attr, '__call__'):\n\n def newfunc(*args, **kwargs):\n \"\"\"Set proper namespace for each method call.\"\"\"\n old_namespace = namespace_manager.get_namespace()\n try:\n namespace_manager.set_namespace(self._ns)\n if not hasattr(self._cache, 'connection'):\n self._cache.connection = (\n VfsCacheConnection.new_connection(self.ns))\n return attr(*args, **kwargs)\n finally:\n namespace_manager.set_namespace(old_namespace)\n\n return newfunc\n\n # Don't intercept access to non-method attributes.\n return attr\n\n @property\n def ns(self):\n return self._ns\n\n @property\n def cache(self):\n return self._cache.connection\n\n def _logical_to_physical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n\n # For now we only support '/' as a physical folder name.\n if self._logical_home_folder == '/':\n return filename\n if not filename.startswith(self._logical_home_folder):\n raise Exception(\n 'Expected path \\'%s\\' to start with a prefix \\'%s\\'.' % (\n filename, self._logical_home_folder))\n\n rel_path = filename[len(self._logical_home_folder):]\n if not rel_path.startswith('/'):\n rel_path = '/%s' % rel_path\n return rel_path\n\n def physical_to_logical(self, filename):\n \"\"\"Converts an internal filename to and external filename.\"\"\"\n\n # This class receives and stores absolute file names. The logical\n # filename is the external file name. The physical filename is an\n # internal filename. This function does the convertions.\n\n # Let's say you want to store a file named '/assets/img/foo.png'.\n # This would be a physical filename in the VFS. But the put() operation\n # expects an absolute filename from the root of the app installation,\n # i.e. something like '/dev/apps/coursebuilder/assets/img/foo.png',\n # which is called a logical filename. This is a legacy expectation from\n # the days the course was defined as files on the file system.\n #\n # This function will do the conversion you need.\n\n return self._physical_to_logical(filename)\n\n def _physical_to_logical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n\n # For now we only support '/' as a physical folder name.\n if filename and not filename.startswith('/'):\n filename = '/' + filename\n if self._logical_home_folder == '/':\n return filename\n return '%s%s' % (self._logical_home_folder, filename)\n\n def _can_inherit(self, filename):\n \"\"\"Checks if a file can be inherited from a parent file system.\"\"\"\n for prefix in self._inheritable_folders:\n if filename.startswith(prefix):\n return True\n return False\n\n def get(self, afilename):\n return self.open(afilename)\n\n def open(self, afilename):\n \"\"\"Gets a file from a datastore. Raw bytes stream, no encodings.\"\"\"\n filename = self._logical_to_physical(afilename)\n found, stream = self.cache.get(filename)\n if found and stream:\n return stream\n if not found:\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if metadata:\n keys = self._generate_file_key_names(filename, metadata.size)\n data_shards = []\n for data_entity in FileDataEntity.get_by_key_name(keys):\n data_shards.append(data_entity.data)\n data = ''.join(data_shards)\n if data:\n # TODO: Note that this will ask the cache to accept\n # potentially very large items. The caching strategy both\n # for in-memory and Memcache should be revisited to\n # determine how best to address chunking strategies.\n self.cache.put(filename, metadata, data)\n return FileStreamWrapped(metadata, data)\n\n # lets us cache the (None, None) so next time we asked for this key\n # we fall right into the inherited section without trying to load\n # the metadata/data from the datastore; if a new object with this\n # key is added in the datastore, we will see it in the update list\n VfsCacheConnection.CACHE_NO_METADATA.inc()\n self.cache.put(filename, None, None)\n\n result = None\n if self._inherits_from and self._can_inherit(filename):\n result = self._inherits_from.get(afilename)\n if result:\n VfsCacheConnection.CACHE_INHERITED.inc()\n return FileStreamWrapped(None, result.read())\n VfsCacheConnection.CACHE_NOT_FOUND.inc()\n return None\n\n def put(self, filename, stream, is_draft=False, metadata_only=False):\n \"\"\"Puts a file stream to a database. Raw bytes stream, no encodings.\"\"\"\n if stream: # Must be outside the transactional operation\n content = stream.read()\n else:\n content = stream\n self._transactional_put(filename, content, is_draft, metadata_only)\n\n @db.transactional(xg=True)\n def _transactional_put(\n self, filename, stream, is_draft=False, metadata_only=False):\n self.non_transactional_put(\n filename, stream, is_draft=is_draft, metadata_only=metadata_only)\n\n @classmethod\n def _generate_file_key_names(cls, filename, size):\n \"\"\"Generate names for key(s) for DB entities holding file data.\n\n Files may be larger than 1M, the AppEngine limit. To work around\n that, just store more entities. Names of additional entities beyond\n the first are of the form \"<filename>:shard:<number>\". This naming\n scheme is \"in-band\", in the sense that it is possible that a user\n could try to name a file with this format. However, that format is\n unusual enough that prohibiting it in incoming file names is both\n simple and very unlikely to cause users undue distress.\n\n Args:\n filename: The base name of the file.\n size: The size of the file, in bytes.\n Returns:\n A list of database entity keys. Files smaller than\n _MAX_VFS_SHARD_SIZE are stored in one entity named by the\n 'filename' parameter. If larger, sufficient additional names of the\n form <filename>/0, <filename>/1, ..... <filename>/N are added.\n \"\"\"\n if re.search(':shard:[0-9]+$', filename):\n raise ValueError(\n 'Files may not end with \":shard:NNN\"; this pattern is '\n 'reserved for internal use. Filename \"%s\" violates this. ' %\n filename)\n if size > _MAX_VFS_SHARD_SIZE * _MAX_VFS_NUM_SHARDS:\n raise ValueError(\n 'Cannot store file \"%s\"; its size of %d bytes is larger than '\n 'the maximum supported size of %d.' % (\n filename, size, _MAX_VFS_SHARD_SIZE * _MAX_VFS_NUM_SHARDS))\n\n key_names = [filename]\n for segment_id in range(size // _MAX_VFS_SHARD_SIZE):\n key_names.append('%s:shard:%d' % (filename, segment_id))\n\n return key_names\n\n def non_transactional_put(\n self, filename, content, is_draft=False, metadata_only=False):\n \"\"\"Non-transactional put; use only when transactions are impossible.\"\"\"\n filename = self._logical_to_physical(filename)\n\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if not metadata:\n metadata = FileMetadataEntity(key_name=filename)\n metadata.updated_on = datetime.datetime.utcnow()\n metadata.is_draft = is_draft\n\n if not metadata_only:\n # We operate with raw bytes. The consumer must deal with encoding.\n metadata.size = len(content)\n\n # Chunk the data into entites based on max entity size limits\n # imposed by AppEngine\n key_names = self._generate_file_key_names(filename, metadata.size)\n shard_entities = []\n for index, key_name in enumerate(key_names):\n data = FileDataEntity(key_name=key_name)\n start_offset = index * _MAX_VFS_SHARD_SIZE\n end_offset = (index + 1) * _MAX_VFS_SHARD_SIZE\n data.data = content[start_offset:end_offset]\n shard_entities.append(data)\n\n entities_put(shard_entities)\n\n metadata.put()\n self.cache.delete(filename)\n\n def put_multi_async(self, filedata_list):\n \"\"\"Initiate an async put of the given files.\n\n This method initiates an asynchronous put of a list of file data\n (presented as pairs of the form (filename, data_source)). It is not\n transactional, and does not block, and instead immediately returns a\n callback function. When this function is called it will block until\n the puts are confirmed to have completed. For maximum efficiency it's\n advisable to defer calling the callback until all other request handling\n has completed, but in any event, it MUST be called before the request\n handler can exit successfully.\n\n Args:\n filedata_list: list. A list of tuples. The first entry of each\n tuple is the file name, the second is a filelike object holding\n the file data.\n\n Returns:\n callable. Returns a wait-and-finalize function. This function must\n be called at some point before the request handler exists, in order\n to confirm that the puts have succeeded.\n \"\"\"\n filename_list = []\n data_list = []\n metadata_list = []\n\n for filename, stream in filedata_list:\n filename = self._logical_to_physical(filename)\n filename_list.append(filename)\n\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if not metadata:\n metadata = FileMetadataEntity(key_name=filename)\n metadata_list.append(metadata)\n metadata.updated_on = datetime.datetime.utcnow()\n\n # We operate with raw bytes. The consumer must deal with encoding.\n raw_bytes = stream.read()\n\n metadata.size = len(raw_bytes)\n\n data = FileDataEntity(key_name=filename)\n data_list.append(data)\n data.data = raw_bytes\n\n # we do call delete here; so this instance will not increment EVICT\n # counter value, but the DELETE value; other instance will not\n # record DELETE, but EVICT when they query for updates\n self.cache.delete(filename)\n\n data_future = db.put_async(data_list)\n metadata_future = db.put_async(metadata_list)\n\n def wait_and_finalize():\n data_future.check_success()\n metadata_future.check_success()\n\n return wait_and_finalize\n\n @db.transactional(xg=True)\n def delete(self, filename):\n filename = self._logical_to_physical(filename)\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if metadata:\n metadata.delete()\n data = FileDataEntity(key_name=filename)\n if data:\n data.delete()\n self.cache.delete(filename)\n\n def isfile(self, afilename):\n \"\"\"Checks file existence by looking up the datastore row.\"\"\"\n filename = self._logical_to_physical(afilename)\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if metadata:\n return True\n result = False\n if self._inherits_from and self._can_inherit(filename):\n result = self._inherits_from.isfile(afilename)\n return result\n\n def list(self, dir_name, include_inherited=False):\n \"\"\"Lists all files in a directory by using datastore query.\n\n Args:\n dir_name: string. Directory to list contents of.\n include_inherited: boolean. If True, includes all inheritable files\n from the parent filesystem.\n\n Returns:\n List of string. Lexicographically-sorted unique filenames\n recursively found in dir_name.\n \"\"\"\n dir_name = self._logical_to_physical(dir_name)\n result = set()\n keys = FileMetadataEntity.all(keys_only=True)\n for key in keys.fetch(1000):\n filename = key.name()\n if filename.startswith(dir_name):\n result.add(self._physical_to_logical(filename))\n if include_inherited and self._inherits_from:\n for inheritable_folder in self._inheritable_folders:\n logical_folder = self._physical_to_logical(inheritable_folder)\n result.update(set(self._inherits_from.list(\n logical_folder,\n include_inherited)))\n return sorted(list(result))\n\n def get_jinja_environ(self, dir_names, autoescape=True):\n return jinja_utils.create_jinja_environment(\n loader=VirtualFileSystemTemplateLoader(\n self, self._logical_home_folder, dir_names),\n autoescape=autoescape)\n\n def is_read_write(self):\n return True\n\n\nclass VfsTests(unittest.TestCase):\n\n def test_pickling(self):\n import pickle\n pickle.dumps(caching.NoopCacheConnection())\n pickle.dumps(caching.AbstractCacheConnection(None))\n pickle.dumps(caching.AbstractCacheEntry())\n\n pickle.dumps(CacheFileEntry('foo.bar', 'file metadata', 'file data'))\n pickle.dumps(DatastoreBackedFileSystem('/', 'ns_test'))\n with self.assertRaises(TypeError):\n pickle.dumps(VfsCacheConnection('ns_test'))\n\n def _setup_cache_with_one_entry(self, is_draft=True, updated_on=None):\n ProcessScopedVfsCache.clear_all()\n conn = VfsCacheConnection('ns_test')\n\n meta = FileMetadataEntity()\n meta.is_draft = is_draft\n meta.updated_on = updated_on\n conn.put('sample.txt', meta, 'file data')\n found, stream = conn.get('sample.txt')\n self.assertTrue(found)\n self.assertEquals(stream.metadata.is_draft, meta.is_draft)\n return conn\n\n def test_expire(self):\n conn = self._setup_cache_with_one_entry()\n entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\n self.assertTrue(entry)\n entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\n old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value\n found, stream = conn.get('sample.txt')\n self.assertFalse(found)\n self.assertEquals(stream, None)\n self.assertEquals(\n VfsCacheConnection.CACHE_EXPIRE.value - old_expire_count, 1)\n\n def test_updates_with_no_changes_dont_evict(self):\n class _Key(object):\n\n def name(self):\n return 'sample.txt'\n\n def _key():\n return _Key()\n\n for is_draft, updated_on in [\n (True, None), (True, datetime.datetime.utcnow()),\n (False, None), (False, datetime.datetime.utcnow())]:\n conn = self._setup_cache_with_one_entry(\n is_draft=is_draft, updated_on=updated_on)\n _, stream = conn.get('sample.txt')\n meta = FileMetadataEntity()\n meta.key = _key\n meta.is_draft = stream.metadata.is_draft\n meta.updated_on = stream.metadata.updated_on\n\n updates = {'sample.txt': meta}\n old_expire_count = VfsCacheConnection.CACHE_EVICT.value\n conn.apply_updates(updates)\n found, _ = conn.get('sample.txt')\n self.assertTrue(found)\n self.assertEquals(\n VfsCacheConnection.CACHE_EVICT.value - old_expire_count, 0)\n\n def test_empty_updates_dont_evict(self):\n conn = self._setup_cache_with_one_entry()\n updates = {}\n old_expire_count = VfsCacheConnection.CACHE_EVICT.value\n conn.apply_updates(updates)\n found, _ = conn.get('sample.txt')\n self.assertTrue(found)\n self.assertEquals(\n VfsCacheConnection.CACHE_EVICT.value - old_expire_count, 0)\n\n def test_updates_with_changes_do_evict(self):\n class _Key(object):\n\n def name(self):\n return 'sample.txt'\n\n def _key():\n return _Key()\n\n def set_is_draft(meta, value):\n meta.is_draft = value\n\n def set_updated_on(meta, value):\n meta.updated_on = value\n\n conn = self._setup_cache_with_one_entry()\n\n mutations = [\n (lambda meta: set_is_draft(meta, False)),\n (lambda meta: set_updated_on(meta, datetime.datetime.utcnow()))]\n\n for mutation in mutations:\n meta = FileMetadataEntity()\n meta.key = _key\n\n mutation(meta)\n\n updates = {'sample.txt': meta}\n conn.apply_updates(updates)\n found, _ = conn.get('sample.txt')\n self.assertFalse(found)\n\n def test_apply_updates_expires_entries(self):\n conn = self._setup_cache_with_one_entry()\n entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\n self.assertTrue(entry)\n entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\n updates = {}\n conn.apply_updates(updates)\n\n old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value\n found, stream = conn.get('sample.txt')\n self.assertFalse(found)\n self.assertEquals(stream, None)\n self.assertEquals(\n VfsCacheConnection.CACHE_EXPIRE.value - old_expire_count, 1)\n\n def test_no_metadata_and_no_data_is_evicted(self):\n ProcessScopedVfsCache.clear_all()\n conn = VfsCacheConnection('ns_test')\n\n conn.put('sample.txt', None, None)\n\n meta = FileMetadataEntity()\n meta.key = 'sample/txt'\n updates = {'sample.txt': meta}\n conn.apply_updates(updates)\n\n found, stream = conn.get('sample.txt')\n self.assertFalse(found)\n self.assertEquals(stream, None)\n\n def test_metadata_but_no_data_is_evicted(self):\n ProcessScopedVfsCache.clear_all()\n conn = VfsCacheConnection('ns_test')\n\n meta = FileMetadataEntity()\n meta.is_draft = True\n meta.updated_on = datetime.datetime.utcnow()\n conn.put('sample.txt', meta, None)\n\n meta = FileMetadataEntity()\n meta.key = 'sample/txt'\n updates = {'sample.txt': meta}\n conn.apply_updates(updates)\n\n found, stream = conn.get('sample.txt')\n self.assertFalse(found)\n self.assertEquals(stream, None)\n\n\ndef run_all_unit_tests():\n \"\"\"Runs all unit tests in this module.\"\"\"\n suites_list = []\n for test_class in [VfsTests]:\n suite = unittest.TestLoader().loadTestsFromTestCase(test_class)\n suites_list.append(suite)\n result = unittest.TextTestRunner().run(unittest.TestSuite(suites_list))\n if not result.wasSuccessful() or result.errors:\n raise Exception(result)\n\n\nif __name__ == '__main__':\n run_all_unit_tests()\n"},"vector":{"kind":"list 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656,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 14,\n 2,\n 0.9917,\n 0.001,\n 2,\n 0.73,\n 0,\n 425,\n 3,\n 1,\n 0,\n 0,\n 331,\n 10,\n 2\n ],\n [\n 8,\n 2,\n 0.9927,\n 0.001,\n 2,\n 0.73,\n 1,\n 243,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 14,\n 1,\n 0.9938,\n 0.001,\n 1,\n 0.45,\n 0.75,\n 51,\n 3,\n 1,\n 0,\n 0,\n 679,\n 10,\n 3\n ],\n [\n 4,\n 1,\n 0.9953,\n 0.0021,\n 1,\n 0.45,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 2\n ],\n [\n 4,\n 0,\n 0.9995,\n 0.0021,\n 0,\n 0.66,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 1,\n 1,\n 0.001,\n 1,\n 0.76,\n 0,\n 200,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Virtual file system for managing files locally or in the cloud.\"\"\"","__author__ = 'Pavel Simakov (psimakov@google.com)'","import datetime","import os","import re","import sys","import threading","import unittest","from config import ConfigProperty","from counters import PerfCounter","from entities import BaseEntity","from entities import put as entities_put","import jinja2","from common import caching","from common import jinja_utils","from google.appengine.api import namespace_manager","from google.appengine.ext import db","MAX_GLOBAL_CACHE_SIZE_BYTES = 16 * 1024 * 1024","MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES = 256 * 1024","_MAX_VFS_SHARD_SIZE = 1000 * 1000","_MAX_VFS_NUM_SHARDS = 4","CAN_USE_VFS_IN_PROCESS_CACHE = ConfigProperty(\n 'gcb_can_use_vfs_in_process_cache', bool, (\n 'Whether or not to cache content objects. For production this value '\n 'should be on to enable maximum performance. For development this '\n 'value should be off so you can see your changes to course content '\n 'instantaneously.'), default_value=True)","class AbstractFileSystem(object):\n \"\"\"A generic file system interface that forwards to an implementation.\"\"\"\n\n def __init__(self, impl):\n self._impl = impl\n self._readonly = False\n\n @property"," \"\"\"A generic file system interface that forwards to an implementation.\"\"\""," def __init__(self, impl):\n self._impl = impl\n self._readonly = False"," self._impl = impl"," self._readonly = False"," def impl(self):\n return self._impl"," return self._impl"," def normpath(cls, path):\n \"\"\"Make Windows and Linux filenames to have the same separator '/'.\"\"\"\n # Replace '\\' into '/' and force Unicode.\n if not path:\n return path\n return u'' + path.replace('\\\\', '/')"," \"\"\"Make Windows and Linux filenames to have the same separator '/'.\"\"\""," if not path:\n return path"," return path"," return u'' + path.replace('\\\\', '/')"," def begin_readonly(self):\n \"\"\"Activates caching of resources and prevents mutations.\"\"\"\n self._assert_not_readonly()\n self._readonly = True"," \"\"\"Activates caching of resources and prevents mutations.\"\"\""," self._assert_not_readonly()"," self._readonly = True"," def end_readonly(self):\n \"\"\"Deactivates caching of resources and enables mutations.\"\"\"\n if not self._readonly:\n raise Exception('Not readonly.')\n self._readonly = False"," \"\"\"Deactivates caching of resources and enables mutations.\"\"\""," if not self._readonly:\n raise Exception('Not readonly.')"," self._readonly = False"," def is_readonly(self):\n return self._readonly"," return self._readonly"," def _assert_not_readonly(self):\n if self._readonly:\n raise Exception(\n 'Unable to execute requested operation while readonly.')"," if self._readonly:\n raise Exception(\n 'Unable to execute requested operation while readonly.')"," def isfile(self, filename):\n \"\"\"Checks if file exists, similar to os.path.isfile(...).\"\"\"\n return self._impl.isfile(filename)"," \"\"\"Checks if file exists, similar to os.path.isfile(...).\"\"\""," return self._impl.isfile(filename)"," def open(self, filename):\n \"\"\"Returns a stream with the file content, similar to open(...).\"\"\"\n return self._impl.get(filename)"," \"\"\"Returns a stream with the file content, similar to open(...).\"\"\""," return self._impl.get(filename)"," def get(self, filename):\n \"\"\"Returns bytes with the file content, but no metadata.\"\"\"\n return self.open(filename).read()"," \"\"\"Returns bytes with the file content, but no metadata.\"\"\""," return self.open(filename).read()"," def put(self, filename, stream, **kwargs):\n \"\"\"Replaces the contents of the file with the bytes in the stream.\"\"\"\n self._assert_not_readonly()\n self._impl.put(filename, stream, **kwargs)"," \"\"\"Replaces the contents of the file with the bytes in the stream.\"\"\""," self._assert_not_readonly()"," self._impl.put(filename, stream, **kwargs)"," def delete(self, filename):\n \"\"\"Deletes a file and metadata associated with it.\"\"\"\n self._assert_not_readonly()\n self._impl.delete(filename)"," \"\"\"Deletes a file and metadata associated with it.\"\"\""," self._assert_not_readonly()"," self._impl.delete(filename)"," def list(self, dir_name, include_inherited=False):\n \"\"\"Lists all files in a directory.\"\"\"\n return self._impl.list(dir_name, include_inherited)"," \"\"\"Lists all files in a directory.\"\"\""," return self._impl.list(dir_name, include_inherited)"," def get_jinja_environ(self, dir_names, autoescape=True):\n \"\"\"Configures jinja environment loaders for this file system.\"\"\"\n return self._impl.get_jinja_environ(dir_names, autoescape=autoescape)"," \"\"\"Configures jinja environment loaders for this file system.\"\"\""," return self._impl.get_jinja_environ(dir_names, autoescape=autoescape)"," def is_read_write(self):\n return self._impl.is_read_write()"," return self._impl.is_read_write()"," def is_draft(self, stream):\n if not hasattr(stream, 'metadata'):\n return False\n if not stream.metadata:\n return False\n return stream.metadata.is_draft"," if not hasattr(stream, 'metadata'):\n return False"," return False"," if not stream.metadata:\n return False"," return False"," return stream.metadata.is_draft","class LocalReadOnlyFileSystem(object):\n \"\"\"A read-only file system serving only local files.\"\"\"\n\n def __init__(self, logical_home_folder=None, physical_home_folder=None):\n \"\"\"Creates a new instance of the disk-backed read-only file system.\n\n Args:\n logical_home_folder: A logical home dir of all files (/a/b/c/...)."," \"\"\"A read-only file system serving only local files.\"\"\""," def __init__(self, logical_home_folder=None, physical_home_folder=None):\n \"\"\"Creates a new instance of the disk-backed read-only file system.\n\n Args:\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\n physical_home_folder: A physical location on the file system (/x/y).\n\n Returns:"," \"\"\"Creates a new instance of the disk-backed read-only file system.\n\n Args:\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\n physical_home_folder: A physical location on the file system (/x/y).\n\n Returns:\n A new instance of the object."," self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)"," self._physical_home_folder = AbstractFileSystem.normpath(\n physical_home_folder)"," def _logical_to_physical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n if not (self._logical_home_folder and self._physical_home_folder):\n return filename\n filename = os.path.join(\n self._physical_home_folder,\n os.path.relpath(filename, self._logical_home_folder))\n return AbstractFileSystem.normpath(filename)"," filename = AbstractFileSystem.normpath(filename)"," if not (self._logical_home_folder and self._physical_home_folder):\n return filename"," return filename"," filename = os.path.join(\n self._physical_home_folder,\n os.path.relpath(filename, self._logical_home_folder))"," return AbstractFileSystem.normpath(filename)"," def _physical_to_logical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n if not (self._logical_home_folder and self._physical_home_folder):\n return filename\n filename = os.path.join(\n self._logical_home_folder,\n os.path.relpath(filename, self._physical_home_folder))\n return AbstractFileSystem.normpath(filename)"," filename = AbstractFileSystem.normpath(filename)"," if not (self._logical_home_folder and self._physical_home_folder):\n return filename"," return filename"," filename = os.path.join(\n self._logical_home_folder,\n os.path.relpath(filename, self._physical_home_folder))"," return AbstractFileSystem.normpath(filename)"," def isfile(self, filename):\n return os.path.isfile(self._logical_to_physical(filename))"," return os.path.isfile(self._logical_to_physical(filename))"," def get(self, filename):\n if not self.isfile(filename):\n return None\n return open(self._logical_to_physical(filename), 'rb')"," if not self.isfile(filename):\n return None"," return None"," return open(self._logical_to_physical(filename), 'rb')"," def put(self, unused_filename, unused_stream):\n raise Exception('Not implemented.')"," def delete(self, unused_filename):\n raise Exception('Not implemented.')"," def list(self, root_dir, include_inherited=False):\n \"\"\"Lists all files in a directory.\"\"\"\n files = []\n for dirname, unused_dirnames, filenames in os.walk(\n self._logical_to_physical(root_dir)):\n for filename in filenames:\n files.append(\n self._physical_to_logical(os.path.join(dirname, filename)))"," \"\"\"Lists all files in a directory.\"\"\""," files = []"," for dirname, unused_dirnames, filenames in os.walk(\n self._logical_to_physical(root_dir)):\n for filename in filenames:\n files.append(\n self._physical_to_logical(os.path.join(dirname, filename)))"," for filename in filenames:\n files.append(\n self._physical_to_logical(os.path.join(dirname, filename)))"," files.append(\n self._physical_to_logical(os.path.join(dirname, filename)))"," return sorted(files)"," def get_jinja_environ(self, dir_names, autoescape=True):\n \"\"\"Configure the environment for Jinja templates.\"\"\"\n physical_dir_names = []\n for dir_name in dir_names:\n physical_dir_names.append(self._logical_to_physical(dir_name))\n\n return jinja_utils.create_jinja_environment(\n loader=jinja2.FileSystemLoader(physical_dir_names),"," \"\"\"Configure the environment for Jinja templates.\"\"\""," physical_dir_names = []"," for dir_name in dir_names:\n physical_dir_names.append(self._logical_to_physical(dir_name))"," physical_dir_names.append(self._logical_to_physical(dir_name))"," return jinja_utils.create_jinja_environment(\n loader=jinja2.FileSystemLoader(physical_dir_names),\n autoescape=autoescape)"," def is_read_write(self):\n return False"," return False","class FileMetadataEntity(BaseEntity):\n \"\"\"An entity to represent a file metadata; absolute file name is a key.\"\"\"\n # TODO(psimakov): do we need 'version' to support concurrent updates\n # TODO(psimakov): can we put 'data' here and still have fast isfile/list?\n created_on = db.DateTimeProperty(auto_now_add=True, indexed=False)\n updated_on = db.DateTimeProperty(indexed=True)\n\n # Draft file is just as any other file. It's up to the consumer of the file"," \"\"\"An entity to represent a file metadata; absolute file name is a key.\"\"\""," created_on = db.DateTimeProperty(auto_now_add=True, indexed=False)"," updated_on = db.DateTimeProperty(indexed=True)"," is_draft = db.BooleanProperty(indexed=False)"," size = db.IntegerProperty(indexed=False)","class FileDataEntity(BaseEntity):\n \"\"\"An entity to represent file content; absolute file name is a key.\"\"\"\n data = db.BlobProperty()"," \"\"\"An entity to represent file content; absolute file name is a key.\"\"\""," data = db.BlobProperty()","class FileStreamWrapped(object):\n \"\"\"A class that wraps a file stream, but adds extra attributes to it.\"\"\"\n\n def __init__(self, metadata, data):\n self._metadata = metadata\n self._data = data\n\n def read(self):"," \"\"\"A class that wraps a file stream, but adds extra attributes to it.\"\"\""," def __init__(self, metadata, data):\n self._metadata = metadata\n self._data = data"," self._metadata = metadata"," self._data = data"," def read(self):\n \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\"\n data = self._data\n self._data = ''\n return data"," \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\""," data = self._data"," self._data = ''"," return data"," def metadata(self):\n return self._metadata"," return self._metadata","class StringStream(object):\n \"\"\"A wrapper to pose a string as a UTF-8 byte stream.\"\"\"\n\n def __init__(self, text):\n self._data = unicode.encode(text, 'utf-8')\n\n def read(self):\n \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\""," \"\"\"A wrapper to pose a string as a UTF-8 byte stream.\"\"\""," def __init__(self, text):\n self._data = unicode.encode(text, 'utf-8')"," self._data = unicode.encode(text, 'utf-8')"," def read(self):\n \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\"\n data = self._data\n self._data = ''\n return data"," \"\"\"Emulates stream.read(). Returns all bytes and emulates EOF.\"\"\""," data = self._data"," self._data = ''"," return data","def string_to_stream(text):\n return StringStream(text)"," return StringStream(text)","def stream_to_string(stream):\n return stream.read().decode('utf-8')"," return stream.read().decode('utf-8')","class VirtualFileSystemTemplateLoader(jinja2.BaseLoader):\n \"\"\"Loader of jinja2 templates from a virtual file system.\"\"\"\n\n def __init__(self, fs, logical_home_folder, dir_names):\n self._fs = fs\n self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)\n self._dir_names = []"," \"\"\"Loader of jinja2 templates from a virtual file system.\"\"\""," def __init__(self, fs, logical_home_folder, dir_names):\n self._fs = fs\n self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)\n self._dir_names = []\n if dir_names:\n for dir_name in dir_names:\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))"," self._fs = fs"," self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)"," self._dir_names = []"," if dir_names:\n for dir_name in dir_names:\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))"," for dir_name in dir_names:\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))"," self._dir_names.append(AbstractFileSystem.normpath(dir_name))"," def get_source(self, unused_environment, template):\n for dir_name in self._dir_names:\n filename = AbstractFileSystem.normpath(\n os.path.join(dir_name, template))\n stream = self._fs.open(filename)\n if stream:\n return stream.read().decode('utf-8'), filename, True\n raise jinja2.TemplateNotFound(template)"," for dir_name in self._dir_names:\n filename = AbstractFileSystem.normpath(\n os.path.join(dir_name, template))\n stream = self._fs.open(filename)\n if stream:\n return stream.read().decode('utf-8'), filename, True"," filename = AbstractFileSystem.normpath(\n os.path.join(dir_name, template))"," stream = self._fs.open(filename)"," if stream:\n return stream.read().decode('utf-8'), filename, True"," return stream.read().decode('utf-8'), filename, True"," def list_templates(self):\n all_templates = []\n for dir_name in self._dir_names:\n all_templates += self._fs.list(dir_name)\n return all_templates"," all_templates = []"," for dir_name in self._dir_names:\n all_templates += self._fs.list(dir_name)"," return all_templates","class ProcessScopedVfsCache(caching.ProcessScopedSingleton):\n \"\"\"This class holds in-process global cache of VFS objects.\"\"\"\n\n @classmethod\n def get_vfs_cache_len(cls):\n # pylint: disable=protected-access\n return len(ProcessScopedVfsCache.instance()._cache.items.keys())"," \"\"\"This class holds in-process global cache of VFS objects.\"\"\""," def get_vfs_cache_len(cls):\n # pylint: disable=protected-access\n return len(ProcessScopedVfsCache.instance()._cache.items.keys())"," return len(ProcessScopedVfsCache.instance()._cache.items.keys())"," def get_vfs_cache_size(cls):\n # pylint: disable=protected-access\n return ProcessScopedVfsCache.instance()._cache.total_size"," return ProcessScopedVfsCache.instance()._cache.total_size"," def __init__(self):\n self._cache = caching.LRUCache(\n max_size_bytes=MAX_GLOBAL_CACHE_SIZE_BYTES,\n max_item_size_bytes=MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES)\n self._cache.get_entry_size = self._get_entry_size"," self._cache = caching.LRUCache(\n max_size_bytes=MAX_GLOBAL_CACHE_SIZE_BYTES,\n max_item_size_bytes=MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES)"," self._cache.get_entry_size = self._get_entry_size"," def _get_entry_size(self, key, value):\n return sys.getsizeof(key) + value.getsizeof() if value else 0"," return sys.getsizeof(key) + value.getsizeof() if value else 0"," def cache(self):\n return self._cache"," return self._cache","VFS_CACHE_LEN = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-len',\n 'A total number of items in vfs cache.')","VFS_CACHE_SIZE_BYTES = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-bytes',\n 'A total size of items in vfs cache in bytes.')","VFS_CACHE_LEN.poll_value = ProcessScopedVfsCache.get_vfs_cache_len","VFS_CACHE_SIZE_BYTES.poll_value = ProcessScopedVfsCache.get_vfs_cache_size","class CacheFileEntry(caching.AbstractCacheEntry):\n \"\"\"Cache entry representing a file.\"\"\"\n\n def __init__(self, filename, metadata, body):\n self.filename = filename\n self.metadata = metadata\n self.body = body\n self.created_on = datetime.datetime.utcnow()"," \"\"\"Cache entry representing a file.\"\"\""," def __init__(self, filename, metadata, body):\n self.filename = filename\n self.metadata = metadata\n self.body = body\n self.created_on = datetime.datetime.utcnow()"," self.filename = filename"," self.metadata = metadata"," self.body = body"," self.created_on = datetime.datetime.utcnow()"," def getsizeof(self):\n return (\n sys.getsizeof(self.filename) +\n sys.getsizeof(self.metadata) +\n sys.getsizeof(self.body) +\n sys.getsizeof(self.created_on))"," return (\n sys.getsizeof(self.filename) +\n sys.getsizeof(self.metadata) +\n sys.getsizeof(self.body) +\n sys.getsizeof(self.created_on))"," def is_up_to_date(self, key, update):\n metadata = update\n if not self.metadata and not metadata:\n return True\n if self.metadata and metadata:\n return (\n metadata.updated_on == self.metadata.updated_on and\n metadata.is_draft == self.metadata.is_draft)"," metadata = update"," if not self.metadata and not metadata:\n return True"," return True"," if self.metadata and metadata:\n return (\n metadata.updated_on == self.metadata.updated_on and\n metadata.is_draft == self.metadata.is_draft)"," return (\n metadata.updated_on == self.metadata.updated_on and\n metadata.is_draft == self.metadata.is_draft)"," return False"," def updated_on(self):\n return self.metadata.updated_on"," return self.metadata.updated_on"," def externalize(cls, key, entry):\n return FileStreamWrapped(entry.metadata, entry.body)"," return FileStreamWrapped(entry.metadata, entry.body)"," def internalize(cls, key, metadata, data):\n if metadata and data:\n return CacheFileEntry(key, metadata, data)\n return None"," if metadata and data:\n return CacheFileEntry(key, metadata, data)"," return CacheFileEntry(key, metadata, data)"," return None","class VfsCacheConnection(caching.AbstractCacheConnection):\n\n PERSISTENT_ENTITY = FileMetadataEntity\n CACHE_ENTRY = CacheFileEntry\n\n @classmethod\n def init_counters(cls):\n super(VfsCacheConnection, cls).init_counters()"," PERSISTENT_ENTITY = FileMetadataEntity"," CACHE_ENTRY = CacheFileEntry"," def init_counters(cls):\n super(VfsCacheConnection, cls).init_counters()\n\n cls.CACHE_NO_METADATA = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-no-metadata',\n 'A number of times an object was requested, but was not found and '\n 'had no metadata.')\n cls.CACHE_INHERITED = PerfCounter("," super(VfsCacheConnection, cls).init_counters()"," cls.CACHE_NO_METADATA = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-no-metadata',\n 'A number of times an object was requested, but was not found and '\n 'had no metadata.')"," cls.CACHE_INHERITED = PerfCounter(\n 'gcb-models-VfsCacheConnection-cache-inherited',\n 'A number of times an object was obtained from the inherited vfs.')"," def is_enabled(cls):\n return CAN_USE_VFS_IN_PROCESS_CACHE.value"," return CAN_USE_VFS_IN_PROCESS_CACHE.value"," def __init__(self, namespace):\n super(VfsCacheConnection, self).__init__(namespace)\n self.cache = ProcessScopedVfsCache.instance().cache"," super(VfsCacheConnection, self).__init__(namespace)"," self.cache = ProcessScopedVfsCache.instance().cache","VfsCacheConnection.init_counters()","class DatastoreBackedFileSystem(object):\n \"\"\"A read-write file system backed by a datastore.\"\"\"\n\n @classmethod\n def make_key(cls, filename):\n return 'vfs:dsbfs:%s' % filename\n\n def __init__("," \"\"\"A read-write file system backed by a datastore.\"\"\""," def make_key(cls, filename):\n return 'vfs:dsbfs:%s' % filename"," return 'vfs:dsbfs:%s' % filename"," def __init__(\n self, ns, logical_home_folder,\n inherits_from=None, inheritable_folders=None):\n \"\"\"Creates a new instance of the datastore-backed file system.\n\n Args:\n ns: A datastore namespace to use for storing all data and metadata.\n logical_home_folder: A logical home dir of all files (/a/b/c/...)."," \"\"\"Creates a new instance of the datastore-backed file system.\n\n Args:\n ns: A datastore namespace to use for storing all data and metadata.\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\n inherits_from: A file system to use for the inheritance.\n inheritable_folders: A list of folders that support inheritance."," if inherits_from and not isinstance(\n inherits_from, LocalReadOnlyFileSystem):\n raise Exception('Can only inherit from LocalReadOnlyFileSystem.')"," self._ns = ns"," self._logical_home_folder = AbstractFileSystem.normpath(\n logical_home_folder)"," self._inherits_from = inherits_from"," self._inheritable_folders = []"," self._cache = threading.local()"," if inheritable_folders:\n for folder in inheritable_folders:\n self._inheritable_folders.append(AbstractFileSystem.normpath(\n folder))"," for folder in inheritable_folders:\n self._inheritable_folders.append(AbstractFileSystem.normpath(\n folder))"," self._inheritable_folders.append(AbstractFileSystem.normpath(\n folder))"," def __getstate__(self):\n \"\"\"Remove transient members that can't survive pickling.\"\"\"\n # TODO(psimakov): we need to properly pickle app_context so vfs is not\n # being serialized at all\n state = self.__dict__.copy()\n if '_cache' in state:\n del state['_cache']\n return state"," \"\"\"Remove transient members that can't survive pickling.\"\"\""," state = self.__dict__.copy()"," if '_cache' in state:\n del state['_cache']"," return state"," def __setstate__(self, state_dict):\n \"\"\"Set persistent members and re-initialize transient members.\"\"\"\n self.__dict__ = state_dict\n self._cache = threading.local()"," \"\"\"Set persistent members and re-initialize transient members.\"\"\""," self.__dict__ = state_dict"," self._cache = threading.local()"," def __getattribute__(self, name):\n attr = object.__getattribute__(self, name)\n\n # Don't intercept access to private methods and attributes.\n if name.startswith('_'):\n return attr\n\n # Do intercept all methods."," attr = object.__getattribute__(self, name)"," if name.startswith('_'):\n return attr"," return attr"," if hasattr(attr, '__call__'):\n\n def newfunc(*args, **kwargs):\n \"\"\"Set proper namespace for each method call.\"\"\"\n old_namespace = namespace_manager.get_namespace()\n try:\n namespace_manager.set_namespace(self._ns)\n if not hasattr(self._cache, 'connection'):"," def newfunc(*args, **kwargs):\n \"\"\"Set proper namespace for each method call.\"\"\"\n old_namespace = namespace_manager.get_namespace()\n try:\n namespace_manager.set_namespace(self._ns)\n if not hasattr(self._cache, 'connection'):\n self._cache.connection = (\n VfsCacheConnection.new_connection(self.ns))"," \"\"\"Set proper namespace for each method call.\"\"\""," old_namespace = namespace_manager.get_namespace()"," try:\n namespace_manager.set_namespace(self._ns)\n if not hasattr(self._cache, 'connection'):\n self._cache.connection = (\n VfsCacheConnection.new_connection(self.ns))\n return attr(*args, **kwargs)\n finally:\n namespace_manager.set_namespace(old_namespace)"," namespace_manager.set_namespace(self._ns)"," if not hasattr(self._cache, 'connection'):\n self._cache.connection = (\n VfsCacheConnection.new_connection(self.ns))"," self._cache.connection = (\n VfsCacheConnection.new_connection(self.ns))"," return attr(*args, **kwargs)"," namespace_manager.set_namespace(old_namespace)"," return newfunc"," return attr"," def ns(self):\n return self._ns"," return self._ns"," def cache(self):\n return self._cache.connection"," return self._cache.connection"," def _logical_to_physical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n\n # For now we only support '/' as a physical folder name.\n if self._logical_home_folder == '/':\n return filename\n if not filename.startswith(self._logical_home_folder):\n raise Exception("," filename = AbstractFileSystem.normpath(filename)"," if self._logical_home_folder == '/':\n return filename"," return filename"," if not filename.startswith(self._logical_home_folder):\n raise Exception(\n 'Expected path \\'%s\\' to start with a prefix \\'%s\\'.' % (\n filename, self._logical_home_folder))"," rel_path = filename[len(self._logical_home_folder):]"," if not rel_path.startswith('/'):\n rel_path = '/%s' % rel_path"," rel_path = '/%s' % rel_path"," return rel_path"," def physical_to_logical(self, filename):\n \"\"\"Converts an internal filename to and external filename.\"\"\"\n\n # This class receives and stores absolute file names. The logical\n # filename is the external file name. The physical filename is an\n # internal filename. This function does the convertions.\n\n # Let's say you want to store a file named '/assets/img/foo.png'."," \"\"\"Converts an internal filename to and external filename.\"\"\""," return self._physical_to_logical(filename)"," def _physical_to_logical(self, filename):\n filename = AbstractFileSystem.normpath(filename)\n\n # For now we only support '/' as a physical folder name.\n if filename and not filename.startswith('/'):\n filename = '/' + filename\n if self._logical_home_folder == '/':\n return filename"," filename = AbstractFileSystem.normpath(filename)"," if filename and not filename.startswith('/'):\n filename = '/' + filename"," filename = '/' + filename"," if self._logical_home_folder == '/':\n return filename"," return filename"," return '%s%s' % (self._logical_home_folder, filename)"," def _can_inherit(self, filename):\n \"\"\"Checks if a file can be inherited from a parent file system.\"\"\"\n for prefix in self._inheritable_folders:\n if filename.startswith(prefix):\n return True\n return False"," \"\"\"Checks if a file can be inherited from a parent file system.\"\"\""," for prefix in self._inheritable_folders:\n if filename.startswith(prefix):\n return True"," if filename.startswith(prefix):\n return True"," return True"," return False"," def get(self, afilename):\n return self.open(afilename)"," return self.open(afilename)"," def open(self, afilename):\n \"\"\"Gets a file from a datastore. Raw bytes stream, no encodings.\"\"\"\n filename = self._logical_to_physical(afilename)\n found, stream = self.cache.get(filename)\n if found and stream:\n return stream\n if not found:\n metadata = FileMetadataEntity.get_by_key_name(filename)"," \"\"\"Gets a file from a datastore. Raw bytes stream, no encodings.\"\"\""," filename = self._logical_to_physical(afilename)"," found, stream = self.cache.get(filename)"," if found and stream:\n return stream"," return stream"," if not found:\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if metadata:\n keys = self._generate_file_key_names(filename, metadata.size)\n data_shards = []\n for data_entity in FileDataEntity.get_by_key_name(keys):\n data_shards.append(data_entity.data)\n data = ''.join(data_shards)"," metadata = FileMetadataEntity.get_by_key_name(filename)"," if metadata:\n keys = self._generate_file_key_names(filename, metadata.size)\n data_shards = []\n for data_entity in FileDataEntity.get_by_key_name(keys):\n data_shards.append(data_entity.data)\n data = ''.join(data_shards)\n if data:\n # TODO: Note that this will ask the cache to accept"," keys = self._generate_file_key_names(filename, metadata.size)"," data_shards = []"," for data_entity in FileDataEntity.get_by_key_name(keys):\n data_shards.append(data_entity.data)"," data_shards.append(data_entity.data)"," data = ''.join(data_shards)"," if data:\n # TODO: Note that this will ask the cache to accept\n # potentially very large items. The caching strategy both\n # for in-memory and Memcache should be revisited to\n # determine how best to address chunking strategies.\n self.cache.put(filename, metadata, data)\n return FileStreamWrapped(metadata, data)"," self.cache.put(filename, metadata, data)"," return FileStreamWrapped(metadata, data)"," VfsCacheConnection.CACHE_NO_METADATA.inc()"," self.cache.put(filename, None, None)"," result = None"," if self._inherits_from and self._can_inherit(filename):\n result = self._inherits_from.get(afilename)"," result = self._inherits_from.get(afilename)"," if result:\n VfsCacheConnection.CACHE_INHERITED.inc()\n return FileStreamWrapped(None, result.read())"," VfsCacheConnection.CACHE_INHERITED.inc()"," return FileStreamWrapped(None, result.read())"," VfsCacheConnection.CACHE_NOT_FOUND.inc()"," return None"," def put(self, filename, stream, is_draft=False, metadata_only=False):\n \"\"\"Puts a file stream to a database. Raw bytes stream, no encodings.\"\"\"\n if stream: # Must be outside the transactional operation\n content = stream.read()\n else:\n content = stream\n self._transactional_put(filename, content, is_draft, metadata_only)"," \"\"\"Puts a file stream to a database. Raw bytes stream, no encodings.\"\"\""," if stream: # Must be outside the transactional operation\n content = stream.read()\n else:\n content = stream"," content = stream.read()"," content = stream"," self._transactional_put(filename, content, is_draft, metadata_only)"," def _transactional_put(\n self, filename, stream, is_draft=False, metadata_only=False):\n self.non_transactional_put(\n filename, stream, is_draft=is_draft, metadata_only=metadata_only)"," self.non_transactional_put(\n filename, stream, is_draft=is_draft, metadata_only=metadata_only)"," def _generate_file_key_names(cls, filename, size):\n \"\"\"Generate names for key(s) for DB entities holding file data.\n\n Files may be larger than 1M, the AppEngine limit. To work around\n that, just store more entities. Names of additional entities beyond\n the first are of the form \"<filename>:shard:<number>\". This naming\n scheme is \"in-band\", in the sense that it is possible that a user\n could try to name a file with this format. However, that format is"," \"\"\"Generate names for key(s) for DB entities holding file data.\n\n Files may be larger than 1M, the AppEngine limit. To work around\n that, just store more entities. Names of additional entities beyond\n the first are of the form \"<filename>:shard:<number>\". This naming\n scheme is \"in-band\", in the sense that it is possible that a user\n could try to name a file with this format. However, that format is\n unusual enough that prohibiting it in incoming file names is both"," if re.search(':shard:[0-9]+$', filename):\n raise ValueError(\n 'Files may not end with \":shard:NNN\"; this pattern is '\n 'reserved for internal use. Filename \"%s\" violates this. ' %\n filename)"," if size > _MAX_VFS_SHARD_SIZE * _MAX_VFS_NUM_SHARDS:\n raise ValueError(\n 'Cannot store file \"%s\"; its size of %d bytes is larger than '\n 'the maximum supported size of %d.' % (\n filename, size, _MAX_VFS_SHARD_SIZE * _MAX_VFS_NUM_SHARDS))"," key_names = [filename]"," for segment_id in range(size // _MAX_VFS_SHARD_SIZE):\n key_names.append('%s:shard:%d' % (filename, segment_id))"," key_names.append('%s:shard:%d' % (filename, segment_id))"," return key_names"," def non_transactional_put(\n self, filename, content, is_draft=False, metadata_only=False):\n \"\"\"Non-transactional put; use only when transactions are impossible.\"\"\"\n filename = self._logical_to_physical(filename)\n\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if not metadata:\n metadata = FileMetadataEntity(key_name=filename)"," \"\"\"Non-transactional put; use only when transactions are impossible.\"\"\""," filename = self._logical_to_physical(filename)"," metadata = FileMetadataEntity.get_by_key_name(filename)"," if not metadata:\n metadata = FileMetadataEntity(key_name=filename)"," metadata = FileMetadataEntity(key_name=filename)"," metadata.updated_on = datetime.datetime.utcnow()"," metadata.is_draft = is_draft"," if not metadata_only:\n # We operate with raw bytes. The consumer must deal with encoding.\n metadata.size = len(content)\n\n # Chunk the data into entites based on max entity size limits\n # imposed by AppEngine\n key_names = self._generate_file_key_names(filename, metadata.size)\n shard_entities = []"," metadata.size = len(content)"," key_names = self._generate_file_key_names(filename, metadata.size)"," shard_entities = []"," for index, key_name in enumerate(key_names):\n data = FileDataEntity(key_name=key_name)\n start_offset = index * _MAX_VFS_SHARD_SIZE\n end_offset = (index + 1) * _MAX_VFS_SHARD_SIZE\n data.data = content[start_offset:end_offset]\n shard_entities.append(data)"," data = FileDataEntity(key_name=key_name)"," start_offset = index * _MAX_VFS_SHARD_SIZE"," end_offset = (index + 1) * _MAX_VFS_SHARD_SIZE"," data.data = content[start_offset:end_offset]"," shard_entities.append(data)"," entities_put(shard_entities)"," metadata.put()"," self.cache.delete(filename)"," def put_multi_async(self, filedata_list):\n \"\"\"Initiate an async put of the given files.\n\n This method initiates an asynchronous put of a list of file data\n (presented as pairs of the form (filename, data_source)). It is not\n transactional, and does not block, and instead immediately returns a\n callback function. When this function is called it will block until\n the puts are confirmed to have completed. For maximum efficiency it's"," \"\"\"Initiate an async put of the given files.\n\n This method initiates an asynchronous put of a list of file data\n (presented as pairs of the form (filename, data_source)). It is not\n transactional, and does not block, and instead immediately returns a\n callback function. When this function is called it will block until\n the puts are confirmed to have completed. For maximum efficiency it's\n advisable to defer calling the callback until all other request handling"," filename_list = []"," data_list = []"," metadata_list = []"," for filename, stream in filedata_list:\n filename = self._logical_to_physical(filename)\n filename_list.append(filename)\n\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if not metadata:\n metadata = FileMetadataEntity(key_name=filename)\n metadata_list.append(metadata)"," filename = self._logical_to_physical(filename)"," filename_list.append(filename)"," metadata = FileMetadataEntity.get_by_key_name(filename)"," if not metadata:\n metadata = FileMetadataEntity(key_name=filename)"," metadata = FileMetadataEntity(key_name=filename)"," metadata_list.append(metadata)"," metadata.updated_on = datetime.datetime.utcnow()"," raw_bytes = stream.read()"," metadata.size = len(raw_bytes)"," data = FileDataEntity(key_name=filename)"," data_list.append(data)"," data.data = raw_bytes"," self.cache.delete(filename)"," data_future = db.put_async(data_list)"," metadata_future = db.put_async(metadata_list)"," def wait_and_finalize():\n data_future.check_success()\n metadata_future.check_success()"," data_future.check_success()"," metadata_future.check_success()"," return wait_and_finalize"," def delete(self, filename):\n filename = self._logical_to_physical(filename)\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if metadata:\n metadata.delete()\n data = FileDataEntity(key_name=filename)\n if data:\n data.delete()"," filename = self._logical_to_physical(filename)"," metadata = FileMetadataEntity.get_by_key_name(filename)"," if metadata:\n metadata.delete()"," metadata.delete()"," data = FileDataEntity(key_name=filename)"," if data:\n data.delete()"," data.delete()"," self.cache.delete(filename)"," def isfile(self, afilename):\n \"\"\"Checks file existence by looking up the datastore row.\"\"\"\n filename = self._logical_to_physical(afilename)\n metadata = FileMetadataEntity.get_by_key_name(filename)\n if metadata:\n return True\n result = False\n if self._inherits_from and self._can_inherit(filename):"," \"\"\"Checks file existence by looking up the datastore row.\"\"\""," filename = self._logical_to_physical(afilename)"," metadata = FileMetadataEntity.get_by_key_name(filename)"," if metadata:\n return True"," return True"," result = False"," if self._inherits_from and self._can_inherit(filename):\n result = self._inherits_from.isfile(afilename)"," result = self._inherits_from.isfile(afilename)"," return result"," def list(self, dir_name, include_inherited=False):\n \"\"\"Lists all files in a directory by using datastore query.\n\n Args:\n dir_name: string. Directory to list contents of.\n include_inherited: boolean. If True, includes all inheritable files\n from the parent filesystem."," \"\"\"Lists all files in a directory by using datastore query.\n\n Args:\n dir_name: string. Directory to list contents of.\n include_inherited: boolean. If True, includes all inheritable files\n from the parent filesystem.\n\n Returns:"," dir_name = self._logical_to_physical(dir_name)"," result = set()"," keys = FileMetadataEntity.all(keys_only=True)"," for key in keys.fetch(1000):\n filename = key.name()\n if filename.startswith(dir_name):\n result.add(self._physical_to_logical(filename))"," filename = key.name()"," if filename.startswith(dir_name):\n result.add(self._physical_to_logical(filename))"," result.add(self._physical_to_logical(filename))"," if include_inherited and self._inherits_from:\n for inheritable_folder in self._inheritable_folders:\n logical_folder = self._physical_to_logical(inheritable_folder)\n result.update(set(self._inherits_from.list(\n logical_folder,\n include_inherited)))"," for inheritable_folder in self._inheritable_folders:\n logical_folder = self._physical_to_logical(inheritable_folder)\n result.update(set(self._inherits_from.list(\n logical_folder,\n include_inherited)))"," logical_folder = self._physical_to_logical(inheritable_folder)"," result.update(set(self._inherits_from.list(\n logical_folder,\n include_inherited)))"," return sorted(list(result))"," def get_jinja_environ(self, dir_names, autoescape=True):\n return jinja_utils.create_jinja_environment(\n loader=VirtualFileSystemTemplateLoader(\n self, self._logical_home_folder, dir_names),\n autoescape=autoescape)"," return jinja_utils.create_jinja_environment(\n loader=VirtualFileSystemTemplateLoader(\n self, self._logical_home_folder, dir_names),\n autoescape=autoescape)"," def is_read_write(self):\n return True"," return True","class VfsTests(unittest.TestCase):\n\n def test_pickling(self):\n import pickle\n pickle.dumps(caching.NoopCacheConnection())\n pickle.dumps(caching.AbstractCacheConnection(None))\n pickle.dumps(caching.AbstractCacheEntry())"," def test_pickling(self):\n import pickle\n pickle.dumps(caching.NoopCacheConnection())\n pickle.dumps(caching.AbstractCacheConnection(None))\n pickle.dumps(caching.AbstractCacheEntry())\n\n pickle.dumps(CacheFileEntry('foo.bar', 'file metadata', 'file data'))\n pickle.dumps(DatastoreBackedFileSystem('/', 'ns_test'))"," import pickle"," pickle.dumps(caching.NoopCacheConnection())"," pickle.dumps(caching.AbstractCacheConnection(None))"," pickle.dumps(caching.AbstractCacheEntry())"," pickle.dumps(CacheFileEntry('foo.bar', 'file metadata', 'file data'))"," pickle.dumps(DatastoreBackedFileSystem('/', 'ns_test'))"," pickle.dumps(VfsCacheConnection('ns_test'))"," def _setup_cache_with_one_entry(self, is_draft=True, updated_on=None):\n ProcessScopedVfsCache.clear_all()\n conn = VfsCacheConnection('ns_test')\n\n meta = FileMetadataEntity()\n meta.is_draft = is_draft\n meta.updated_on = updated_on\n conn.put('sample.txt', meta, 'file data')"," ProcessScopedVfsCache.clear_all()"," conn = VfsCacheConnection('ns_test')"," meta = FileMetadataEntity()"," meta.is_draft = is_draft"," meta.updated_on = updated_on"," conn.put('sample.txt', meta, 'file data')"," found, stream = conn.get('sample.txt')"," self.assertTrue(found)"," self.assertEquals(stream.metadata.is_draft, meta.is_draft)"," return conn"," def test_expire(self):\n conn = self._setup_cache_with_one_entry()\n entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\n self.assertTrue(entry)\n entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\n old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value\n found, stream = conn.get('sample.txt')"," conn = self._setup_cache_with_one_entry()"," entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))"," self.assertTrue(entry)"," entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)"," old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value"," found, stream = conn.get('sample.txt')"," self.assertFalse(found)"," self.assertEquals(stream, None)"," self.assertEquals(\n VfsCacheConnection.CACHE_EXPIRE.value - old_expire_count, 1)"," def test_updates_with_no_changes_dont_evict(self):\n class _Key(object):\n\n def name(self):\n return 'sample.txt'\n\n def _key():\n return _Key()"," class _Key(object):\n\n def name(self):\n return 'sample.txt'"," def name(self):\n return 'sample.txt'"," return 'sample.txt'"," def _key():\n return _Key()"," return _Key()"," for is_draft, updated_on in [\n (True, None), (True, datetime.datetime.utcnow()),\n (False, None), (False, datetime.datetime.utcnow())]:\n conn = self._setup_cache_with_one_entry(\n is_draft=is_draft, updated_on=updated_on)\n _, stream = conn.get('sample.txt')\n meta = FileMetadataEntity()\n meta.key = _key"," conn = self._setup_cache_with_one_entry(\n is_draft=is_draft, updated_on=updated_on)"," _, stream = conn.get('sample.txt')"," meta = FileMetadataEntity()"," meta.key = _key"," meta.is_draft = stream.metadata.is_draft"," meta.updated_on = stream.metadata.updated_on"," updates = {'sample.txt': meta}"," old_expire_count = VfsCacheConnection.CACHE_EVICT.value"," conn.apply_updates(updates)"," found, _ = conn.get('sample.txt')"," self.assertTrue(found)"," self.assertEquals(\n VfsCacheConnection.CACHE_EVICT.value - old_expire_count, 0)"," def test_empty_updates_dont_evict(self):\n conn = self._setup_cache_with_one_entry()\n updates = {}\n old_expire_count = VfsCacheConnection.CACHE_EVICT.value\n conn.apply_updates(updates)\n found, _ = conn.get('sample.txt')\n self.assertTrue(found)\n self.assertEquals("," conn = self._setup_cache_with_one_entry()"," updates = {}"," old_expire_count = VfsCacheConnection.CACHE_EVICT.value"," conn.apply_updates(updates)"," found, _ = conn.get('sample.txt')"," self.assertTrue(found)"," self.assertEquals(\n VfsCacheConnection.CACHE_EVICT.value - old_expire_count, 0)"," def test_updates_with_changes_do_evict(self):\n class _Key(object):\n\n def name(self):\n return 'sample.txt'\n\n def _key():\n return _Key()"," class _Key(object):\n\n def name(self):\n return 'sample.txt'"," def name(self):\n return 'sample.txt'"," return 'sample.txt'"," def _key():\n return _Key()"," return _Key()"," def set_is_draft(meta, value):\n meta.is_draft = value"," meta.is_draft = value"," def set_updated_on(meta, value):\n meta.updated_on = value"," meta.updated_on = value"," conn = self._setup_cache_with_one_entry()"," mutations = [\n (lambda meta: set_is_draft(meta, False)),\n (lambda meta: set_updated_on(meta, datetime.datetime.utcnow()))]"," for mutation in mutations:\n meta = FileMetadataEntity()\n meta.key = _key\n\n mutation(meta)\n\n updates = {'sample.txt': meta}\n conn.apply_updates(updates)"," meta = FileMetadataEntity()"," meta.key = _key"," mutation(meta)"," updates = {'sample.txt': meta}"," conn.apply_updates(updates)"," found, _ = conn.get('sample.txt')"," self.assertFalse(found)"," def test_apply_updates_expires_entries(self):\n conn = self._setup_cache_with_one_entry()\n entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\n self.assertTrue(entry)\n entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\n updates = {}\n conn.apply_updates(updates)"," conn = self._setup_cache_with_one_entry()"," entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))"," self.assertTrue(entry)"," entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)"," updates = {}"," conn.apply_updates(updates)"," old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value"," found, stream = conn.get('sample.txt')"," self.assertFalse(found)"," self.assertEquals(stream, None)"," self.assertEquals(\n VfsCacheConnection.CACHE_EXPIRE.value - old_expire_count, 1)"," def test_no_metadata_and_no_data_is_evicted(self):\n ProcessScopedVfsCache.clear_all()\n conn = VfsCacheConnection('ns_test')\n\n conn.put('sample.txt', None, None)\n\n meta = FileMetadataEntity()\n meta.key = 'sample/txt'"," ProcessScopedVfsCache.clear_all()"," conn = VfsCacheConnection('ns_test')"," conn.put('sample.txt', None, None)"," meta = FileMetadataEntity()"," meta.key = 'sample/txt'"," updates = {'sample.txt': meta}"," conn.apply_updates(updates)"," found, stream = conn.get('sample.txt')"," self.assertFalse(found)"," self.assertEquals(stream, None)"," def test_metadata_but_no_data_is_evicted(self):\n ProcessScopedVfsCache.clear_all()\n conn = VfsCacheConnection('ns_test')\n\n meta = FileMetadataEntity()\n meta.is_draft = True\n meta.updated_on = datetime.datetime.utcnow()\n conn.put('sample.txt', meta, None)"," ProcessScopedVfsCache.clear_all()"," conn = VfsCacheConnection('ns_test')"," meta = FileMetadataEntity()"," meta.is_draft = True"," meta.updated_on = datetime.datetime.utcnow()"," conn.put('sample.txt', meta, None)"," meta = FileMetadataEntity()"," meta.key = 'sample/txt'"," updates = {'sample.txt': meta}"," conn.apply_updates(updates)"," found, stream = conn.get('sample.txt')"," self.assertFalse(found)"," self.assertEquals(stream, None)","def run_all_unit_tests():\n \"\"\"Runs all unit tests in this module.\"\"\"\n suites_list = []\n for test_class in [VfsTests]:\n suite = unittest.TestLoader().loadTestsFromTestCase(test_class)\n suites_list.append(suite)\n result = unittest.TextTestRunner().run(unittest.TestSuite(suites_list))\n if not result.wasSuccessful() or result.errors:"," \"\"\"Runs all unit tests in this module.\"\"\""," suites_list = []"," for test_class in [VfsTests]:\n suite = unittest.TestLoader().loadTestsFromTestCase(test_class)\n suites_list.append(suite)"," suite = unittest.TestLoader().loadTestsFromTestCase(test_class)"," suites_list.append(suite)"," result = unittest.TextTestRunner().run(unittest.TestSuite(suites_list))"," if not result.wasSuccessful() or result.errors:\n raise Exception(result)","if __name__ == '__main__':\n run_all_unit_tests()"," run_all_unit_tests()"],"string":"[\n \"\\\"\\\"\\\"Virtual file system for managing files locally or in the cloud.\\\"\\\"\\\"\",\n \"__author__ = 'Pavel Simakov (psimakov@google.com)'\",\n \"import datetime\",\n \"import os\",\n \"import re\",\n \"import sys\",\n \"import threading\",\n \"import unittest\",\n \"from config import ConfigProperty\",\n \"from counters import PerfCounter\",\n \"from entities import BaseEntity\",\n \"from entities import put as entities_put\",\n \"import jinja2\",\n \"from common import caching\",\n \"from common import jinja_utils\",\n \"from google.appengine.api import namespace_manager\",\n \"from google.appengine.ext import db\",\n \"MAX_GLOBAL_CACHE_SIZE_BYTES = 16 * 1024 * 1024\",\n \"MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES = 256 * 1024\",\n \"_MAX_VFS_SHARD_SIZE = 1000 * 1000\",\n \"_MAX_VFS_NUM_SHARDS = 4\",\n \"CAN_USE_VFS_IN_PROCESS_CACHE = ConfigProperty(\\n 'gcb_can_use_vfs_in_process_cache', bool, (\\n 'Whether or not to cache content objects. For production this value '\\n 'should be on to enable maximum performance. For development this '\\n 'value should be off so you can see your changes to course content '\\n 'instantaneously.'), default_value=True)\",\n \"class AbstractFileSystem(object):\\n \\\"\\\"\\\"A generic file system interface that forwards to an implementation.\\\"\\\"\\\"\\n\\n def __init__(self, impl):\\n self._impl = impl\\n self._readonly = False\\n\\n @property\",\n \" \\\"\\\"\\\"A generic file system interface that forwards to an implementation.\\\"\\\"\\\"\",\n \" def __init__(self, impl):\\n self._impl = impl\\n self._readonly = False\",\n \" self._impl = impl\",\n \" self._readonly = False\",\n \" def impl(self):\\n return self._impl\",\n \" return self._impl\",\n \" def normpath(cls, path):\\n \\\"\\\"\\\"Make Windows and Linux filenames to have the same separator '/'.\\\"\\\"\\\"\\n # Replace '\\\\' into '/' and force Unicode.\\n if not path:\\n return path\\n return u'' + path.replace('\\\\\\\\', '/')\",\n \" \\\"\\\"\\\"Make Windows and Linux filenames to have the same separator '/'.\\\"\\\"\\\"\",\n \" if not path:\\n return path\",\n \" return path\",\n \" return u'' + path.replace('\\\\\\\\', '/')\",\n \" def begin_readonly(self):\\n \\\"\\\"\\\"Activates caching of resources and prevents mutations.\\\"\\\"\\\"\\n self._assert_not_readonly()\\n self._readonly = True\",\n \" \\\"\\\"\\\"Activates caching of resources and prevents mutations.\\\"\\\"\\\"\",\n \" self._assert_not_readonly()\",\n \" self._readonly = True\",\n \" def end_readonly(self):\\n \\\"\\\"\\\"Deactivates caching of resources and enables mutations.\\\"\\\"\\\"\\n if not self._readonly:\\n raise Exception('Not readonly.')\\n self._readonly = False\",\n \" \\\"\\\"\\\"Deactivates caching of resources and enables mutations.\\\"\\\"\\\"\",\n \" if not self._readonly:\\n raise Exception('Not readonly.')\",\n \" self._readonly = False\",\n \" def is_readonly(self):\\n return self._readonly\",\n \" return self._readonly\",\n \" def _assert_not_readonly(self):\\n if self._readonly:\\n raise Exception(\\n 'Unable to execute requested operation while readonly.')\",\n \" if self._readonly:\\n raise Exception(\\n 'Unable to execute requested operation while readonly.')\",\n \" def isfile(self, filename):\\n \\\"\\\"\\\"Checks if file exists, similar to os.path.isfile(...).\\\"\\\"\\\"\\n return self._impl.isfile(filename)\",\n \" \\\"\\\"\\\"Checks if file exists, similar to os.path.isfile(...).\\\"\\\"\\\"\",\n \" return self._impl.isfile(filename)\",\n \" def open(self, filename):\\n \\\"\\\"\\\"Returns a stream with the file content, similar to open(...).\\\"\\\"\\\"\\n return self._impl.get(filename)\",\n \" \\\"\\\"\\\"Returns a stream with the file content, similar to open(...).\\\"\\\"\\\"\",\n \" return self._impl.get(filename)\",\n \" def get(self, filename):\\n \\\"\\\"\\\"Returns bytes with the file content, but no metadata.\\\"\\\"\\\"\\n return self.open(filename).read()\",\n \" \\\"\\\"\\\"Returns bytes with the file content, but no metadata.\\\"\\\"\\\"\",\n \" return self.open(filename).read()\",\n \" def put(self, filename, stream, **kwargs):\\n \\\"\\\"\\\"Replaces the contents of the file with the bytes in the stream.\\\"\\\"\\\"\\n self._assert_not_readonly()\\n self._impl.put(filename, stream, **kwargs)\",\n \" \\\"\\\"\\\"Replaces the contents of the file with the bytes in the stream.\\\"\\\"\\\"\",\n \" self._assert_not_readonly()\",\n \" self._impl.put(filename, stream, **kwargs)\",\n \" def delete(self, filename):\\n \\\"\\\"\\\"Deletes a file and metadata associated with it.\\\"\\\"\\\"\\n self._assert_not_readonly()\\n self._impl.delete(filename)\",\n \" \\\"\\\"\\\"Deletes a file and metadata associated with it.\\\"\\\"\\\"\",\n \" self._assert_not_readonly()\",\n \" self._impl.delete(filename)\",\n \" def list(self, dir_name, include_inherited=False):\\n \\\"\\\"\\\"Lists all files in a directory.\\\"\\\"\\\"\\n return self._impl.list(dir_name, include_inherited)\",\n \" \\\"\\\"\\\"Lists all files in a directory.\\\"\\\"\\\"\",\n \" return self._impl.list(dir_name, include_inherited)\",\n \" def get_jinja_environ(self, dir_names, autoescape=True):\\n \\\"\\\"\\\"Configures jinja environment loaders for this file system.\\\"\\\"\\\"\\n return self._impl.get_jinja_environ(dir_names, autoescape=autoescape)\",\n \" \\\"\\\"\\\"Configures jinja environment loaders for this file system.\\\"\\\"\\\"\",\n \" return self._impl.get_jinja_environ(dir_names, autoescape=autoescape)\",\n \" def is_read_write(self):\\n return self._impl.is_read_write()\",\n \" return self._impl.is_read_write()\",\n \" def is_draft(self, stream):\\n if not hasattr(stream, 'metadata'):\\n return False\\n if not stream.metadata:\\n return False\\n return stream.metadata.is_draft\",\n \" if not hasattr(stream, 'metadata'):\\n return False\",\n \" return False\",\n \" if not stream.metadata:\\n return False\",\n \" return False\",\n \" return stream.metadata.is_draft\",\n \"class LocalReadOnlyFileSystem(object):\\n \\\"\\\"\\\"A read-only file system serving only local files.\\\"\\\"\\\"\\n\\n def __init__(self, logical_home_folder=None, physical_home_folder=None):\\n \\\"\\\"\\\"Creates a new instance of the disk-backed read-only file system.\\n\\n Args:\\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\",\n \" \\\"\\\"\\\"A read-only file system serving only local files.\\\"\\\"\\\"\",\n \" def __init__(self, logical_home_folder=None, physical_home_folder=None):\\n \\\"\\\"\\\"Creates a new instance of the disk-backed read-only file system.\\n\\n Args:\\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\\n physical_home_folder: A physical location on the file system (/x/y).\\n\\n Returns:\",\n \" \\\"\\\"\\\"Creates a new instance of the disk-backed read-only file system.\\n\\n Args:\\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\\n physical_home_folder: A physical location on the file system (/x/y).\\n\\n Returns:\\n A new instance of the object.\",\n \" self._logical_home_folder = AbstractFileSystem.normpath(\\n logical_home_folder)\",\n \" self._physical_home_folder = AbstractFileSystem.normpath(\\n physical_home_folder)\",\n \" def _logical_to_physical(self, filename):\\n filename = AbstractFileSystem.normpath(filename)\\n if not (self._logical_home_folder and self._physical_home_folder):\\n return filename\\n filename = os.path.join(\\n self._physical_home_folder,\\n os.path.relpath(filename, self._logical_home_folder))\\n return AbstractFileSystem.normpath(filename)\",\n \" filename = AbstractFileSystem.normpath(filename)\",\n \" if not (self._logical_home_folder and self._physical_home_folder):\\n return filename\",\n \" return filename\",\n \" filename = os.path.join(\\n self._physical_home_folder,\\n os.path.relpath(filename, self._logical_home_folder))\",\n \" return AbstractFileSystem.normpath(filename)\",\n \" def _physical_to_logical(self, filename):\\n filename = AbstractFileSystem.normpath(filename)\\n if not (self._logical_home_folder and self._physical_home_folder):\\n return filename\\n filename = os.path.join(\\n self._logical_home_folder,\\n os.path.relpath(filename, self._physical_home_folder))\\n return AbstractFileSystem.normpath(filename)\",\n \" filename = AbstractFileSystem.normpath(filename)\",\n \" if not (self._logical_home_folder and self._physical_home_folder):\\n return filename\",\n \" return filename\",\n \" filename = os.path.join(\\n self._logical_home_folder,\\n os.path.relpath(filename, self._physical_home_folder))\",\n \" return AbstractFileSystem.normpath(filename)\",\n \" def isfile(self, filename):\\n return os.path.isfile(self._logical_to_physical(filename))\",\n \" return os.path.isfile(self._logical_to_physical(filename))\",\n \" def get(self, filename):\\n if not self.isfile(filename):\\n return None\\n return open(self._logical_to_physical(filename), 'rb')\",\n \" if not self.isfile(filename):\\n return None\",\n \" return None\",\n \" return open(self._logical_to_physical(filename), 'rb')\",\n \" def put(self, unused_filename, unused_stream):\\n raise Exception('Not implemented.')\",\n \" def delete(self, unused_filename):\\n raise Exception('Not implemented.')\",\n \" def list(self, root_dir, include_inherited=False):\\n \\\"\\\"\\\"Lists all files in a directory.\\\"\\\"\\\"\\n files = []\\n for dirname, unused_dirnames, filenames in os.walk(\\n self._logical_to_physical(root_dir)):\\n for filename in filenames:\\n files.append(\\n self._physical_to_logical(os.path.join(dirname, filename)))\",\n \" \\\"\\\"\\\"Lists all files in a directory.\\\"\\\"\\\"\",\n \" files = []\",\n \" for dirname, unused_dirnames, filenames in os.walk(\\n self._logical_to_physical(root_dir)):\\n for filename in filenames:\\n files.append(\\n self._physical_to_logical(os.path.join(dirname, filename)))\",\n \" for filename in filenames:\\n files.append(\\n self._physical_to_logical(os.path.join(dirname, filename)))\",\n \" files.append(\\n self._physical_to_logical(os.path.join(dirname, filename)))\",\n \" return sorted(files)\",\n \" def get_jinja_environ(self, dir_names, autoescape=True):\\n \\\"\\\"\\\"Configure the environment for Jinja templates.\\\"\\\"\\\"\\n physical_dir_names = []\\n for dir_name in dir_names:\\n physical_dir_names.append(self._logical_to_physical(dir_name))\\n\\n return jinja_utils.create_jinja_environment(\\n loader=jinja2.FileSystemLoader(physical_dir_names),\",\n \" \\\"\\\"\\\"Configure the environment for Jinja templates.\\\"\\\"\\\"\",\n \" physical_dir_names = []\",\n \" for dir_name in dir_names:\\n physical_dir_names.append(self._logical_to_physical(dir_name))\",\n \" physical_dir_names.append(self._logical_to_physical(dir_name))\",\n \" return jinja_utils.create_jinja_environment(\\n loader=jinja2.FileSystemLoader(physical_dir_names),\\n autoescape=autoescape)\",\n \" def is_read_write(self):\\n return False\",\n \" return False\",\n \"class FileMetadataEntity(BaseEntity):\\n \\\"\\\"\\\"An entity to represent a file metadata; absolute file name is a key.\\\"\\\"\\\"\\n # TODO(psimakov): do we need 'version' to support concurrent updates\\n # TODO(psimakov): can we put 'data' here and still have fast isfile/list?\\n created_on = db.DateTimeProperty(auto_now_add=True, indexed=False)\\n updated_on = db.DateTimeProperty(indexed=True)\\n\\n # Draft file is just as any other file. It's up to the consumer of the file\",\n \" \\\"\\\"\\\"An entity to represent a file metadata; absolute file name is a key.\\\"\\\"\\\"\",\n \" created_on = db.DateTimeProperty(auto_now_add=True, indexed=False)\",\n \" updated_on = db.DateTimeProperty(indexed=True)\",\n \" is_draft = db.BooleanProperty(indexed=False)\",\n \" size = db.IntegerProperty(indexed=False)\",\n \"class FileDataEntity(BaseEntity):\\n \\\"\\\"\\\"An entity to represent file content; absolute file name is a key.\\\"\\\"\\\"\\n data = db.BlobProperty()\",\n \" \\\"\\\"\\\"An entity to represent file content; absolute file name is a key.\\\"\\\"\\\"\",\n \" data = db.BlobProperty()\",\n \"class FileStreamWrapped(object):\\n \\\"\\\"\\\"A class that wraps a file stream, but adds extra attributes to it.\\\"\\\"\\\"\\n\\n def __init__(self, metadata, data):\\n self._metadata = metadata\\n self._data = data\\n\\n def read(self):\",\n \" \\\"\\\"\\\"A class that wraps a file stream, but adds extra attributes to it.\\\"\\\"\\\"\",\n \" def __init__(self, metadata, data):\\n self._metadata = metadata\\n self._data = data\",\n \" self._metadata = metadata\",\n \" self._data = data\",\n \" def read(self):\\n \\\"\\\"\\\"Emulates stream.read(). Returns all bytes and emulates EOF.\\\"\\\"\\\"\\n data = self._data\\n self._data = ''\\n return data\",\n \" \\\"\\\"\\\"Emulates stream.read(). Returns all bytes and emulates EOF.\\\"\\\"\\\"\",\n \" data = self._data\",\n \" self._data = ''\",\n \" return data\",\n \" def metadata(self):\\n return self._metadata\",\n \" return self._metadata\",\n \"class StringStream(object):\\n \\\"\\\"\\\"A wrapper to pose a string as a UTF-8 byte stream.\\\"\\\"\\\"\\n\\n def __init__(self, text):\\n self._data = unicode.encode(text, 'utf-8')\\n\\n def read(self):\\n \\\"\\\"\\\"Emulates stream.read(). Returns all bytes and emulates EOF.\\\"\\\"\\\"\",\n \" \\\"\\\"\\\"A wrapper to pose a string as a UTF-8 byte stream.\\\"\\\"\\\"\",\n \" def __init__(self, text):\\n self._data = unicode.encode(text, 'utf-8')\",\n \" self._data = unicode.encode(text, 'utf-8')\",\n \" def read(self):\\n \\\"\\\"\\\"Emulates stream.read(). Returns all bytes and emulates EOF.\\\"\\\"\\\"\\n data = self._data\\n self._data = ''\\n return data\",\n \" \\\"\\\"\\\"Emulates stream.read(). Returns all bytes and emulates EOF.\\\"\\\"\\\"\",\n \" data = self._data\",\n \" self._data = ''\",\n \" return data\",\n \"def string_to_stream(text):\\n return StringStream(text)\",\n \" return StringStream(text)\",\n \"def stream_to_string(stream):\\n return stream.read().decode('utf-8')\",\n \" return stream.read().decode('utf-8')\",\n \"class VirtualFileSystemTemplateLoader(jinja2.BaseLoader):\\n \\\"\\\"\\\"Loader of jinja2 templates from a virtual file system.\\\"\\\"\\\"\\n\\n def __init__(self, fs, logical_home_folder, dir_names):\\n self._fs = fs\\n self._logical_home_folder = AbstractFileSystem.normpath(\\n logical_home_folder)\\n self._dir_names = []\",\n \" \\\"\\\"\\\"Loader of jinja2 templates from a virtual file system.\\\"\\\"\\\"\",\n \" def __init__(self, fs, logical_home_folder, dir_names):\\n self._fs = fs\\n self._logical_home_folder = AbstractFileSystem.normpath(\\n logical_home_folder)\\n self._dir_names = []\\n if dir_names:\\n for dir_name in dir_names:\\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))\",\n \" self._fs = fs\",\n \" self._logical_home_folder = AbstractFileSystem.normpath(\\n logical_home_folder)\",\n \" self._dir_names = []\",\n \" if dir_names:\\n for dir_name in dir_names:\\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))\",\n \" for dir_name in dir_names:\\n self._dir_names.append(AbstractFileSystem.normpath(dir_name))\",\n \" self._dir_names.append(AbstractFileSystem.normpath(dir_name))\",\n \" def get_source(self, unused_environment, template):\\n for dir_name in self._dir_names:\\n filename = AbstractFileSystem.normpath(\\n os.path.join(dir_name, template))\\n stream = self._fs.open(filename)\\n if stream:\\n return stream.read().decode('utf-8'), filename, True\\n raise jinja2.TemplateNotFound(template)\",\n \" for dir_name in self._dir_names:\\n filename = AbstractFileSystem.normpath(\\n os.path.join(dir_name, template))\\n stream = self._fs.open(filename)\\n if stream:\\n return stream.read().decode('utf-8'), filename, True\",\n \" filename = AbstractFileSystem.normpath(\\n os.path.join(dir_name, template))\",\n \" stream = self._fs.open(filename)\",\n \" if stream:\\n return stream.read().decode('utf-8'), filename, True\",\n \" return stream.read().decode('utf-8'), filename, True\",\n \" def list_templates(self):\\n all_templates = []\\n for dir_name in self._dir_names:\\n all_templates += self._fs.list(dir_name)\\n return all_templates\",\n \" all_templates = []\",\n \" for dir_name in self._dir_names:\\n all_templates += self._fs.list(dir_name)\",\n \" return all_templates\",\n \"class ProcessScopedVfsCache(caching.ProcessScopedSingleton):\\n \\\"\\\"\\\"This class holds in-process global cache of VFS objects.\\\"\\\"\\\"\\n\\n @classmethod\\n def get_vfs_cache_len(cls):\\n # pylint: disable=protected-access\\n return len(ProcessScopedVfsCache.instance()._cache.items.keys())\",\n \" \\\"\\\"\\\"This class holds in-process global cache of VFS objects.\\\"\\\"\\\"\",\n \" def get_vfs_cache_len(cls):\\n # pylint: disable=protected-access\\n return len(ProcessScopedVfsCache.instance()._cache.items.keys())\",\n \" return len(ProcessScopedVfsCache.instance()._cache.items.keys())\",\n \" def get_vfs_cache_size(cls):\\n # pylint: disable=protected-access\\n return ProcessScopedVfsCache.instance()._cache.total_size\",\n \" return ProcessScopedVfsCache.instance()._cache.total_size\",\n \" def __init__(self):\\n self._cache = caching.LRUCache(\\n max_size_bytes=MAX_GLOBAL_CACHE_SIZE_BYTES,\\n max_item_size_bytes=MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES)\\n self._cache.get_entry_size = self._get_entry_size\",\n \" self._cache = caching.LRUCache(\\n max_size_bytes=MAX_GLOBAL_CACHE_SIZE_BYTES,\\n max_item_size_bytes=MAX_GLOBAL_CACHE_ITEM_SIZE_BYTES)\",\n \" self._cache.get_entry_size = self._get_entry_size\",\n \" def _get_entry_size(self, key, value):\\n return sys.getsizeof(key) + value.getsizeof() if value else 0\",\n \" return sys.getsizeof(key) + value.getsizeof() if value else 0\",\n \" def cache(self):\\n return self._cache\",\n \" return self._cache\",\n \"VFS_CACHE_LEN = PerfCounter(\\n 'gcb-models-VfsCacheConnection-cache-len',\\n 'A total number of items in vfs cache.')\",\n \"VFS_CACHE_SIZE_BYTES = PerfCounter(\\n 'gcb-models-VfsCacheConnection-cache-bytes',\\n 'A total size of items in vfs cache in bytes.')\",\n \"VFS_CACHE_LEN.poll_value = ProcessScopedVfsCache.get_vfs_cache_len\",\n \"VFS_CACHE_SIZE_BYTES.poll_value = ProcessScopedVfsCache.get_vfs_cache_size\",\n \"class CacheFileEntry(caching.AbstractCacheEntry):\\n \\\"\\\"\\\"Cache entry representing a file.\\\"\\\"\\\"\\n\\n def __init__(self, filename, metadata, body):\\n self.filename = filename\\n self.metadata = metadata\\n self.body = body\\n self.created_on = datetime.datetime.utcnow()\",\n \" \\\"\\\"\\\"Cache entry representing a file.\\\"\\\"\\\"\",\n \" def __init__(self, filename, metadata, body):\\n self.filename = filename\\n self.metadata = metadata\\n self.body = body\\n self.created_on = datetime.datetime.utcnow()\",\n \" self.filename = filename\",\n \" self.metadata = metadata\",\n \" self.body = body\",\n \" self.created_on = datetime.datetime.utcnow()\",\n \" def getsizeof(self):\\n return (\\n sys.getsizeof(self.filename) +\\n sys.getsizeof(self.metadata) +\\n sys.getsizeof(self.body) +\\n sys.getsizeof(self.created_on))\",\n \" return (\\n sys.getsizeof(self.filename) +\\n sys.getsizeof(self.metadata) +\\n sys.getsizeof(self.body) +\\n sys.getsizeof(self.created_on))\",\n \" def is_up_to_date(self, key, update):\\n metadata = update\\n if not self.metadata and not metadata:\\n return True\\n if self.metadata and metadata:\\n return (\\n metadata.updated_on == self.metadata.updated_on and\\n metadata.is_draft == self.metadata.is_draft)\",\n \" metadata = update\",\n \" if not self.metadata and not metadata:\\n return True\",\n \" return True\",\n \" if self.metadata and metadata:\\n return (\\n metadata.updated_on == self.metadata.updated_on and\\n metadata.is_draft == self.metadata.is_draft)\",\n \" return (\\n metadata.updated_on == self.metadata.updated_on and\\n metadata.is_draft == self.metadata.is_draft)\",\n \" return False\",\n \" def updated_on(self):\\n return self.metadata.updated_on\",\n \" return self.metadata.updated_on\",\n \" def externalize(cls, key, entry):\\n return FileStreamWrapped(entry.metadata, entry.body)\",\n \" return FileStreamWrapped(entry.metadata, entry.body)\",\n \" def internalize(cls, key, metadata, data):\\n if metadata and data:\\n return CacheFileEntry(key, metadata, data)\\n return None\",\n \" if metadata and data:\\n return CacheFileEntry(key, metadata, data)\",\n \" return CacheFileEntry(key, metadata, data)\",\n \" return None\",\n \"class VfsCacheConnection(caching.AbstractCacheConnection):\\n\\n PERSISTENT_ENTITY = FileMetadataEntity\\n CACHE_ENTRY = CacheFileEntry\\n\\n @classmethod\\n def init_counters(cls):\\n super(VfsCacheConnection, cls).init_counters()\",\n \" PERSISTENT_ENTITY = FileMetadataEntity\",\n \" CACHE_ENTRY = CacheFileEntry\",\n \" def init_counters(cls):\\n super(VfsCacheConnection, cls).init_counters()\\n\\n cls.CACHE_NO_METADATA = PerfCounter(\\n 'gcb-models-VfsCacheConnection-cache-no-metadata',\\n 'A number of times an object was requested, but was not found and '\\n 'had no metadata.')\\n cls.CACHE_INHERITED = PerfCounter(\",\n \" super(VfsCacheConnection, cls).init_counters()\",\n \" cls.CACHE_NO_METADATA = PerfCounter(\\n 'gcb-models-VfsCacheConnection-cache-no-metadata',\\n 'A number of times an object was requested, but was not found and '\\n 'had no metadata.')\",\n \" cls.CACHE_INHERITED = PerfCounter(\\n 'gcb-models-VfsCacheConnection-cache-inherited',\\n 'A number of times an object was obtained from the inherited vfs.')\",\n \" def is_enabled(cls):\\n return CAN_USE_VFS_IN_PROCESS_CACHE.value\",\n \" return CAN_USE_VFS_IN_PROCESS_CACHE.value\",\n \" def __init__(self, namespace):\\n super(VfsCacheConnection, self).__init__(namespace)\\n self.cache = ProcessScopedVfsCache.instance().cache\",\n \" super(VfsCacheConnection, self).__init__(namespace)\",\n \" self.cache = ProcessScopedVfsCache.instance().cache\",\n \"VfsCacheConnection.init_counters()\",\n \"class DatastoreBackedFileSystem(object):\\n \\\"\\\"\\\"A read-write file system backed by a datastore.\\\"\\\"\\\"\\n\\n @classmethod\\n def make_key(cls, filename):\\n return 'vfs:dsbfs:%s' % filename\\n\\n def __init__(\",\n \" \\\"\\\"\\\"A read-write file system backed by a datastore.\\\"\\\"\\\"\",\n \" def make_key(cls, filename):\\n return 'vfs:dsbfs:%s' % filename\",\n \" return 'vfs:dsbfs:%s' % filename\",\n \" def __init__(\\n self, ns, logical_home_folder,\\n inherits_from=None, inheritable_folders=None):\\n \\\"\\\"\\\"Creates a new instance of the datastore-backed file system.\\n\\n Args:\\n ns: A datastore namespace to use for storing all data and metadata.\\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\",\n \" \\\"\\\"\\\"Creates a new instance of the datastore-backed file system.\\n\\n Args:\\n ns: A datastore namespace to use for storing all data and metadata.\\n logical_home_folder: A logical home dir of all files (/a/b/c/...).\\n inherits_from: A file system to use for the inheritance.\\n inheritable_folders: A list of folders that support inheritance.\",\n \" if inherits_from and not isinstance(\\n inherits_from, LocalReadOnlyFileSystem):\\n raise Exception('Can only inherit from LocalReadOnlyFileSystem.')\",\n \" self._ns = ns\",\n \" self._logical_home_folder = AbstractFileSystem.normpath(\\n logical_home_folder)\",\n \" self._inherits_from = inherits_from\",\n \" self._inheritable_folders = []\",\n \" self._cache = threading.local()\",\n \" if inheritable_folders:\\n for folder in inheritable_folders:\\n self._inheritable_folders.append(AbstractFileSystem.normpath(\\n folder))\",\n \" for folder in inheritable_folders:\\n self._inheritable_folders.append(AbstractFileSystem.normpath(\\n folder))\",\n \" self._inheritable_folders.append(AbstractFileSystem.normpath(\\n folder))\",\n \" def __getstate__(self):\\n \\\"\\\"\\\"Remove transient members that can't survive pickling.\\\"\\\"\\\"\\n # TODO(psimakov): we need to properly pickle app_context so vfs is not\\n # being serialized at all\\n state = self.__dict__.copy()\\n if '_cache' in state:\\n del state['_cache']\\n return state\",\n \" \\\"\\\"\\\"Remove transient members that can't survive pickling.\\\"\\\"\\\"\",\n \" state = self.__dict__.copy()\",\n \" if '_cache' in state:\\n del state['_cache']\",\n \" return state\",\n \" def __setstate__(self, state_dict):\\n \\\"\\\"\\\"Set persistent members and re-initialize transient members.\\\"\\\"\\\"\\n self.__dict__ = state_dict\\n self._cache = threading.local()\",\n \" \\\"\\\"\\\"Set persistent members and re-initialize transient members.\\\"\\\"\\\"\",\n \" self.__dict__ = state_dict\",\n \" self._cache = threading.local()\",\n \" def __getattribute__(self, name):\\n attr = object.__getattribute__(self, name)\\n\\n # Don't intercept access to private methods and attributes.\\n if name.startswith('_'):\\n return attr\\n\\n # Do intercept all methods.\",\n \" attr = object.__getattribute__(self, name)\",\n \" if name.startswith('_'):\\n return attr\",\n \" return attr\",\n \" if hasattr(attr, '__call__'):\\n\\n def newfunc(*args, **kwargs):\\n \\\"\\\"\\\"Set proper namespace for each method call.\\\"\\\"\\\"\\n old_namespace = namespace_manager.get_namespace()\\n try:\\n namespace_manager.set_namespace(self._ns)\\n if not hasattr(self._cache, 'connection'):\",\n \" def newfunc(*args, **kwargs):\\n \\\"\\\"\\\"Set proper namespace for each method call.\\\"\\\"\\\"\\n old_namespace = namespace_manager.get_namespace()\\n try:\\n namespace_manager.set_namespace(self._ns)\\n if not hasattr(self._cache, 'connection'):\\n self._cache.connection = (\\n VfsCacheConnection.new_connection(self.ns))\",\n \" \\\"\\\"\\\"Set proper namespace for each method call.\\\"\\\"\\\"\",\n \" old_namespace = namespace_manager.get_namespace()\",\n \" try:\\n namespace_manager.set_namespace(self._ns)\\n if not hasattr(self._cache, 'connection'):\\n self._cache.connection = (\\n VfsCacheConnection.new_connection(self.ns))\\n return attr(*args, **kwargs)\\n finally:\\n namespace_manager.set_namespace(old_namespace)\",\n \" namespace_manager.set_namespace(self._ns)\",\n \" if not hasattr(self._cache, 'connection'):\\n self._cache.connection = (\\n VfsCacheConnection.new_connection(self.ns))\",\n \" self._cache.connection = (\\n VfsCacheConnection.new_connection(self.ns))\",\n \" return attr(*args, **kwargs)\",\n \" namespace_manager.set_namespace(old_namespace)\",\n \" return newfunc\",\n \" return attr\",\n \" def ns(self):\\n return self._ns\",\n \" return self._ns\",\n \" def cache(self):\\n return self._cache.connection\",\n \" return self._cache.connection\",\n \" def _logical_to_physical(self, filename):\\n filename = AbstractFileSystem.normpath(filename)\\n\\n # For now we only support '/' as a physical folder name.\\n if self._logical_home_folder == '/':\\n return filename\\n if not filename.startswith(self._logical_home_folder):\\n raise Exception(\",\n \" filename = AbstractFileSystem.normpath(filename)\",\n \" if self._logical_home_folder == '/':\\n return filename\",\n \" return filename\",\n \" if not filename.startswith(self._logical_home_folder):\\n raise Exception(\\n 'Expected path \\\\'%s\\\\' to start with a prefix \\\\'%s\\\\'.' % (\\n filename, self._logical_home_folder))\",\n \" rel_path = filename[len(self._logical_home_folder):]\",\n \" if not rel_path.startswith('/'):\\n rel_path = '/%s' % rel_path\",\n \" rel_path = '/%s' % rel_path\",\n \" return rel_path\",\n \" def physical_to_logical(self, filename):\\n \\\"\\\"\\\"Converts an internal filename to and external filename.\\\"\\\"\\\"\\n\\n # This class receives and stores absolute file names. The logical\\n # filename is the external file name. The physical filename is an\\n # internal filename. This function does the convertions.\\n\\n # Let's say you want to store a file named '/assets/img/foo.png'.\",\n \" \\\"\\\"\\\"Converts an internal filename to and external filename.\\\"\\\"\\\"\",\n \" return self._physical_to_logical(filename)\",\n \" def _physical_to_logical(self, filename):\\n filename = AbstractFileSystem.normpath(filename)\\n\\n # For now we only support '/' as a physical folder name.\\n if filename and not filename.startswith('/'):\\n filename = '/' + filename\\n if self._logical_home_folder == '/':\\n return filename\",\n \" filename = AbstractFileSystem.normpath(filename)\",\n \" if filename and not filename.startswith('/'):\\n filename = '/' + filename\",\n \" filename = '/' + filename\",\n \" if self._logical_home_folder == '/':\\n return filename\",\n \" return filename\",\n \" return '%s%s' % (self._logical_home_folder, filename)\",\n \" def _can_inherit(self, filename):\\n \\\"\\\"\\\"Checks if a file can be inherited from a parent file system.\\\"\\\"\\\"\\n for prefix in self._inheritable_folders:\\n if filename.startswith(prefix):\\n return True\\n return False\",\n \" \\\"\\\"\\\"Checks if a file can be inherited from a parent file system.\\\"\\\"\\\"\",\n \" for prefix in self._inheritable_folders:\\n if filename.startswith(prefix):\\n return True\",\n \" if filename.startswith(prefix):\\n return True\",\n \" return True\",\n \" return False\",\n \" def get(self, afilename):\\n return self.open(afilename)\",\n \" return self.open(afilename)\",\n \" def open(self, afilename):\\n \\\"\\\"\\\"Gets a file from a datastore. Raw bytes stream, no encodings.\\\"\\\"\\\"\\n filename = self._logical_to_physical(afilename)\\n found, stream = self.cache.get(filename)\\n if found and stream:\\n return stream\\n if not found:\\n metadata = FileMetadataEntity.get_by_key_name(filename)\",\n \" \\\"\\\"\\\"Gets a file from a datastore. Raw bytes stream, no encodings.\\\"\\\"\\\"\",\n \" filename = self._logical_to_physical(afilename)\",\n \" found, stream = self.cache.get(filename)\",\n \" if found and stream:\\n return stream\",\n \" return stream\",\n \" if not found:\\n metadata = FileMetadataEntity.get_by_key_name(filename)\\n if metadata:\\n keys = self._generate_file_key_names(filename, metadata.size)\\n data_shards = []\\n for data_entity in FileDataEntity.get_by_key_name(keys):\\n data_shards.append(data_entity.data)\\n data = ''.join(data_shards)\",\n \" metadata = FileMetadataEntity.get_by_key_name(filename)\",\n \" if metadata:\\n keys = self._generate_file_key_names(filename, metadata.size)\\n data_shards = []\\n for data_entity in FileDataEntity.get_by_key_name(keys):\\n data_shards.append(data_entity.data)\\n data = ''.join(data_shards)\\n if data:\\n # TODO: Note that this will ask the cache to accept\",\n \" keys = self._generate_file_key_names(filename, metadata.size)\",\n \" data_shards = []\",\n \" for data_entity in FileDataEntity.get_by_key_name(keys):\\n data_shards.append(data_entity.data)\",\n \" data_shards.append(data_entity.data)\",\n \" data = ''.join(data_shards)\",\n \" if data:\\n # TODO: Note that this will ask the cache to accept\\n # potentially very large items. The caching strategy both\\n # for in-memory and Memcache should be revisited to\\n # determine how best to address chunking strategies.\\n self.cache.put(filename, metadata, data)\\n return FileStreamWrapped(metadata, data)\",\n \" self.cache.put(filename, metadata, data)\",\n \" return FileStreamWrapped(metadata, data)\",\n \" VfsCacheConnection.CACHE_NO_METADATA.inc()\",\n \" self.cache.put(filename, None, None)\",\n \" result = None\",\n \" if self._inherits_from and self._can_inherit(filename):\\n result = self._inherits_from.get(afilename)\",\n \" result = self._inherits_from.get(afilename)\",\n \" if result:\\n VfsCacheConnection.CACHE_INHERITED.inc()\\n return FileStreamWrapped(None, result.read())\",\n \" VfsCacheConnection.CACHE_INHERITED.inc()\",\n \" return FileStreamWrapped(None, result.read())\",\n \" VfsCacheConnection.CACHE_NOT_FOUND.inc()\",\n \" return None\",\n \" def put(self, filename, stream, is_draft=False, metadata_only=False):\\n \\\"\\\"\\\"Puts a file stream to a database. Raw bytes stream, no encodings.\\\"\\\"\\\"\\n if stream: # Must be outside the transactional operation\\n content = stream.read()\\n else:\\n content = stream\\n self._transactional_put(filename, content, is_draft, metadata_only)\",\n \" \\\"\\\"\\\"Puts a file stream to a database. Raw bytes stream, no encodings.\\\"\\\"\\\"\",\n \" if stream: # Must be outside the transactional operation\\n content = stream.read()\\n else:\\n content = stream\",\n \" content = stream.read()\",\n \" content = stream\",\n \" self._transactional_put(filename, content, is_draft, metadata_only)\",\n \" def _transactional_put(\\n self, filename, stream, is_draft=False, metadata_only=False):\\n self.non_transactional_put(\\n filename, stream, is_draft=is_draft, metadata_only=metadata_only)\",\n \" self.non_transactional_put(\\n filename, stream, is_draft=is_draft, metadata_only=metadata_only)\",\n \" def _generate_file_key_names(cls, filename, size):\\n \\\"\\\"\\\"Generate names for key(s) for DB entities holding file data.\\n\\n Files may be larger than 1M, the AppEngine limit. To work around\\n that, just store more entities. Names of additional entities beyond\\n the first are of the form \\\"<filename>:shard:<number>\\\". This naming\\n scheme is \\\"in-band\\\", in the sense that it is possible that a user\\n could try to name a file with this format. However, that format is\",\n \" \\\"\\\"\\\"Generate names for key(s) for DB entities holding file data.\\n\\n Files may be larger than 1M, the AppEngine limit. To work around\\n that, just store more entities. Names of additional entities beyond\\n the first are of the form \\\"<filename>:shard:<number>\\\". This naming\\n scheme is \\\"in-band\\\", in the sense that it is possible that a user\\n could try to name a file with this format. However, that format is\\n unusual enough that prohibiting it in incoming file names is both\",\n \" if re.search(':shard:[0-9]+$', filename):\\n raise ValueError(\\n 'Files may not end with \\\":shard:NNN\\\"; this pattern is '\\n 'reserved for internal use. Filename \\\"%s\\\" violates this. ' %\\n filename)\",\n \" if size > _MAX_VFS_SHARD_SIZE * _MAX_VFS_NUM_SHARDS:\\n raise ValueError(\\n 'Cannot store file \\\"%s\\\"; its size of %d bytes is larger than '\\n 'the maximum supported size of %d.' % (\\n filename, size, _MAX_VFS_SHARD_SIZE * _MAX_VFS_NUM_SHARDS))\",\n \" key_names = [filename]\",\n \" for segment_id in range(size // _MAX_VFS_SHARD_SIZE):\\n key_names.append('%s:shard:%d' % (filename, segment_id))\",\n \" key_names.append('%s:shard:%d' % (filename, segment_id))\",\n \" return key_names\",\n \" def non_transactional_put(\\n self, filename, content, is_draft=False, metadata_only=False):\\n \\\"\\\"\\\"Non-transactional put; use only when transactions are impossible.\\\"\\\"\\\"\\n filename = self._logical_to_physical(filename)\\n\\n metadata = FileMetadataEntity.get_by_key_name(filename)\\n if not metadata:\\n metadata = FileMetadataEntity(key_name=filename)\",\n \" \\\"\\\"\\\"Non-transactional put; use only when transactions are impossible.\\\"\\\"\\\"\",\n \" filename = self._logical_to_physical(filename)\",\n \" metadata = FileMetadataEntity.get_by_key_name(filename)\",\n \" if not metadata:\\n metadata = FileMetadataEntity(key_name=filename)\",\n \" metadata = FileMetadataEntity(key_name=filename)\",\n \" metadata.updated_on = datetime.datetime.utcnow()\",\n \" metadata.is_draft = is_draft\",\n \" if not metadata_only:\\n # We operate with raw bytes. The consumer must deal with encoding.\\n metadata.size = len(content)\\n\\n # Chunk the data into entites based on max entity size limits\\n # imposed by AppEngine\\n key_names = self._generate_file_key_names(filename, metadata.size)\\n shard_entities = []\",\n \" metadata.size = len(content)\",\n \" key_names = self._generate_file_key_names(filename, metadata.size)\",\n \" shard_entities = []\",\n \" for index, key_name in enumerate(key_names):\\n data = FileDataEntity(key_name=key_name)\\n start_offset = index * _MAX_VFS_SHARD_SIZE\\n end_offset = (index + 1) * _MAX_VFS_SHARD_SIZE\\n data.data = content[start_offset:end_offset]\\n shard_entities.append(data)\",\n \" data = FileDataEntity(key_name=key_name)\",\n \" start_offset = index * _MAX_VFS_SHARD_SIZE\",\n \" end_offset = (index + 1) * _MAX_VFS_SHARD_SIZE\",\n \" data.data = content[start_offset:end_offset]\",\n \" shard_entities.append(data)\",\n \" entities_put(shard_entities)\",\n \" metadata.put()\",\n \" self.cache.delete(filename)\",\n \" def put_multi_async(self, filedata_list):\\n \\\"\\\"\\\"Initiate an async put of the given files.\\n\\n This method initiates an asynchronous put of a list of file data\\n (presented as pairs of the form (filename, data_source)). It is not\\n transactional, and does not block, and instead immediately returns a\\n callback function. When this function is called it will block until\\n the puts are confirmed to have completed. For maximum efficiency it's\",\n \" \\\"\\\"\\\"Initiate an async put of the given files.\\n\\n This method initiates an asynchronous put of a list of file data\\n (presented as pairs of the form (filename, data_source)). It is not\\n transactional, and does not block, and instead immediately returns a\\n callback function. When this function is called it will block until\\n the puts are confirmed to have completed. For maximum efficiency it's\\n advisable to defer calling the callback until all other request handling\",\n \" filename_list = []\",\n \" data_list = []\",\n \" metadata_list = []\",\n \" for filename, stream in filedata_list:\\n filename = self._logical_to_physical(filename)\\n filename_list.append(filename)\\n\\n metadata = FileMetadataEntity.get_by_key_name(filename)\\n if not metadata:\\n metadata = FileMetadataEntity(key_name=filename)\\n metadata_list.append(metadata)\",\n \" filename = self._logical_to_physical(filename)\",\n \" filename_list.append(filename)\",\n \" metadata = FileMetadataEntity.get_by_key_name(filename)\",\n \" if not metadata:\\n metadata = FileMetadataEntity(key_name=filename)\",\n \" metadata = FileMetadataEntity(key_name=filename)\",\n \" metadata_list.append(metadata)\",\n \" metadata.updated_on = datetime.datetime.utcnow()\",\n \" raw_bytes = stream.read()\",\n \" metadata.size = len(raw_bytes)\",\n \" data = FileDataEntity(key_name=filename)\",\n \" data_list.append(data)\",\n \" data.data = raw_bytes\",\n \" self.cache.delete(filename)\",\n \" data_future = db.put_async(data_list)\",\n \" metadata_future = db.put_async(metadata_list)\",\n \" def wait_and_finalize():\\n data_future.check_success()\\n metadata_future.check_success()\",\n \" data_future.check_success()\",\n \" metadata_future.check_success()\",\n \" return wait_and_finalize\",\n \" def delete(self, filename):\\n filename = self._logical_to_physical(filename)\\n metadata = FileMetadataEntity.get_by_key_name(filename)\\n if metadata:\\n metadata.delete()\\n data = FileDataEntity(key_name=filename)\\n if data:\\n data.delete()\",\n \" filename = self._logical_to_physical(filename)\",\n \" metadata = FileMetadataEntity.get_by_key_name(filename)\",\n \" if metadata:\\n metadata.delete()\",\n \" metadata.delete()\",\n \" data = FileDataEntity(key_name=filename)\",\n \" if data:\\n data.delete()\",\n \" data.delete()\",\n \" self.cache.delete(filename)\",\n \" def isfile(self, afilename):\\n \\\"\\\"\\\"Checks file existence by looking up the datastore row.\\\"\\\"\\\"\\n filename = self._logical_to_physical(afilename)\\n metadata = FileMetadataEntity.get_by_key_name(filename)\\n if metadata:\\n return True\\n result = False\\n if self._inherits_from and self._can_inherit(filename):\",\n \" \\\"\\\"\\\"Checks file existence by looking up the datastore row.\\\"\\\"\\\"\",\n \" filename = self._logical_to_physical(afilename)\",\n \" metadata = FileMetadataEntity.get_by_key_name(filename)\",\n \" if metadata:\\n return True\",\n \" return True\",\n \" result = False\",\n \" if self._inherits_from and self._can_inherit(filename):\\n result = self._inherits_from.isfile(afilename)\",\n \" result = self._inherits_from.isfile(afilename)\",\n \" return result\",\n \" def list(self, dir_name, include_inherited=False):\\n \\\"\\\"\\\"Lists all files in a directory by using datastore query.\\n\\n Args:\\n dir_name: string. Directory to list contents of.\\n include_inherited: boolean. If True, includes all inheritable files\\n from the parent filesystem.\",\n \" \\\"\\\"\\\"Lists all files in a directory by using datastore query.\\n\\n Args:\\n dir_name: string. Directory to list contents of.\\n include_inherited: boolean. If True, includes all inheritable files\\n from the parent filesystem.\\n\\n Returns:\",\n \" dir_name = self._logical_to_physical(dir_name)\",\n \" result = set()\",\n \" keys = FileMetadataEntity.all(keys_only=True)\",\n \" for key in keys.fetch(1000):\\n filename = key.name()\\n if filename.startswith(dir_name):\\n result.add(self._physical_to_logical(filename))\",\n \" filename = key.name()\",\n \" if filename.startswith(dir_name):\\n result.add(self._physical_to_logical(filename))\",\n \" result.add(self._physical_to_logical(filename))\",\n \" if include_inherited and self._inherits_from:\\n for inheritable_folder in self._inheritable_folders:\\n logical_folder = self._physical_to_logical(inheritable_folder)\\n result.update(set(self._inherits_from.list(\\n logical_folder,\\n include_inherited)))\",\n \" for inheritable_folder in self._inheritable_folders:\\n logical_folder = self._physical_to_logical(inheritable_folder)\\n result.update(set(self._inherits_from.list(\\n logical_folder,\\n include_inherited)))\",\n \" logical_folder = self._physical_to_logical(inheritable_folder)\",\n \" result.update(set(self._inherits_from.list(\\n logical_folder,\\n include_inherited)))\",\n \" return sorted(list(result))\",\n \" def get_jinja_environ(self, dir_names, autoescape=True):\\n return jinja_utils.create_jinja_environment(\\n loader=VirtualFileSystemTemplateLoader(\\n self, self._logical_home_folder, dir_names),\\n autoescape=autoescape)\",\n \" return jinja_utils.create_jinja_environment(\\n loader=VirtualFileSystemTemplateLoader(\\n self, self._logical_home_folder, dir_names),\\n autoescape=autoescape)\",\n \" def is_read_write(self):\\n return True\",\n \" return True\",\n \"class VfsTests(unittest.TestCase):\\n\\n def test_pickling(self):\\n import pickle\\n pickle.dumps(caching.NoopCacheConnection())\\n pickle.dumps(caching.AbstractCacheConnection(None))\\n pickle.dumps(caching.AbstractCacheEntry())\",\n \" def test_pickling(self):\\n import pickle\\n pickle.dumps(caching.NoopCacheConnection())\\n pickle.dumps(caching.AbstractCacheConnection(None))\\n pickle.dumps(caching.AbstractCacheEntry())\\n\\n pickle.dumps(CacheFileEntry('foo.bar', 'file metadata', 'file data'))\\n pickle.dumps(DatastoreBackedFileSystem('/', 'ns_test'))\",\n \" import pickle\",\n \" pickle.dumps(caching.NoopCacheConnection())\",\n \" pickle.dumps(caching.AbstractCacheConnection(None))\",\n \" pickle.dumps(caching.AbstractCacheEntry())\",\n \" pickle.dumps(CacheFileEntry('foo.bar', 'file metadata', 'file data'))\",\n \" pickle.dumps(DatastoreBackedFileSystem('/', 'ns_test'))\",\n \" pickle.dumps(VfsCacheConnection('ns_test'))\",\n \" def _setup_cache_with_one_entry(self, is_draft=True, updated_on=None):\\n ProcessScopedVfsCache.clear_all()\\n conn = VfsCacheConnection('ns_test')\\n\\n meta = FileMetadataEntity()\\n meta.is_draft = is_draft\\n meta.updated_on = updated_on\\n conn.put('sample.txt', meta, 'file data')\",\n \" ProcessScopedVfsCache.clear_all()\",\n \" conn = VfsCacheConnection('ns_test')\",\n \" meta = FileMetadataEntity()\",\n \" meta.is_draft = is_draft\",\n \" meta.updated_on = updated_on\",\n \" conn.put('sample.txt', meta, 'file data')\",\n \" found, stream = conn.get('sample.txt')\",\n \" self.assertTrue(found)\",\n \" self.assertEquals(stream.metadata.is_draft, meta.is_draft)\",\n \" return conn\",\n \" def test_expire(self):\\n conn = self._setup_cache_with_one_entry()\\n entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\\n self.assertTrue(entry)\\n entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\\n old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value\\n found, stream = conn.get('sample.txt')\",\n \" conn = self._setup_cache_with_one_entry()\",\n \" entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\",\n \" self.assertTrue(entry)\",\n \" entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\",\n \" old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value\",\n \" found, stream = conn.get('sample.txt')\",\n \" self.assertFalse(found)\",\n \" self.assertEquals(stream, None)\",\n \" self.assertEquals(\\n VfsCacheConnection.CACHE_EXPIRE.value - old_expire_count, 1)\",\n \" def test_updates_with_no_changes_dont_evict(self):\\n class _Key(object):\\n\\n def name(self):\\n return 'sample.txt'\\n\\n def _key():\\n return _Key()\",\n \" class _Key(object):\\n\\n def name(self):\\n return 'sample.txt'\",\n \" def name(self):\\n return 'sample.txt'\",\n \" return 'sample.txt'\",\n \" def _key():\\n return _Key()\",\n \" return _Key()\",\n \" for is_draft, updated_on in [\\n (True, None), (True, datetime.datetime.utcnow()),\\n (False, None), (False, datetime.datetime.utcnow())]:\\n conn = self._setup_cache_with_one_entry(\\n is_draft=is_draft, updated_on=updated_on)\\n _, stream = conn.get('sample.txt')\\n meta = FileMetadataEntity()\\n meta.key = _key\",\n \" conn = self._setup_cache_with_one_entry(\\n is_draft=is_draft, updated_on=updated_on)\",\n \" _, stream = conn.get('sample.txt')\",\n \" meta = FileMetadataEntity()\",\n \" meta.key = _key\",\n \" meta.is_draft = stream.metadata.is_draft\",\n \" meta.updated_on = stream.metadata.updated_on\",\n \" updates = {'sample.txt': meta}\",\n \" old_expire_count = VfsCacheConnection.CACHE_EVICT.value\",\n \" conn.apply_updates(updates)\",\n \" found, _ = conn.get('sample.txt')\",\n \" self.assertTrue(found)\",\n \" self.assertEquals(\\n VfsCacheConnection.CACHE_EVICT.value - old_expire_count, 0)\",\n \" def test_empty_updates_dont_evict(self):\\n conn = self._setup_cache_with_one_entry()\\n updates = {}\\n old_expire_count = VfsCacheConnection.CACHE_EVICT.value\\n conn.apply_updates(updates)\\n found, _ = conn.get('sample.txt')\\n self.assertTrue(found)\\n self.assertEquals(\",\n \" conn = self._setup_cache_with_one_entry()\",\n \" updates = {}\",\n \" old_expire_count = VfsCacheConnection.CACHE_EVICT.value\",\n \" conn.apply_updates(updates)\",\n \" found, _ = conn.get('sample.txt')\",\n \" self.assertTrue(found)\",\n \" self.assertEquals(\\n VfsCacheConnection.CACHE_EVICT.value - old_expire_count, 0)\",\n \" def test_updates_with_changes_do_evict(self):\\n class _Key(object):\\n\\n def name(self):\\n return 'sample.txt'\\n\\n def _key():\\n return _Key()\",\n \" class _Key(object):\\n\\n def name(self):\\n return 'sample.txt'\",\n \" def name(self):\\n return 'sample.txt'\",\n \" return 'sample.txt'\",\n \" def _key():\\n return _Key()\",\n \" return _Key()\",\n \" def set_is_draft(meta, value):\\n meta.is_draft = value\",\n \" meta.is_draft = value\",\n \" def set_updated_on(meta, value):\\n meta.updated_on = value\",\n \" meta.updated_on = value\",\n \" conn = self._setup_cache_with_one_entry()\",\n \" mutations = [\\n (lambda meta: set_is_draft(meta, False)),\\n (lambda meta: set_updated_on(meta, datetime.datetime.utcnow()))]\",\n \" for mutation in mutations:\\n meta = FileMetadataEntity()\\n meta.key = _key\\n\\n mutation(meta)\\n\\n updates = {'sample.txt': meta}\\n conn.apply_updates(updates)\",\n \" meta = FileMetadataEntity()\",\n \" meta.key = _key\",\n \" mutation(meta)\",\n \" updates = {'sample.txt': meta}\",\n \" conn.apply_updates(updates)\",\n \" found, _ = conn.get('sample.txt')\",\n \" self.assertFalse(found)\",\n \" def test_apply_updates_expires_entries(self):\\n conn = self._setup_cache_with_one_entry()\\n entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\\n self.assertTrue(entry)\\n entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\\n updates = {}\\n conn.apply_updates(updates)\",\n \" conn = self._setup_cache_with_one_entry()\",\n \" entry = conn.cache.items.get(conn.make_key('ns_test', 'sample.txt'))\",\n \" self.assertTrue(entry)\",\n \" entry.created_on = datetime.datetime.utcnow() - datetime.timedelta(\\n 0, CacheFileEntry.CACHE_ENTRY_TTL_SEC + 1)\",\n \" updates = {}\",\n \" conn.apply_updates(updates)\",\n \" old_expire_count = VfsCacheConnection.CACHE_EXPIRE.value\",\n \" found, stream = conn.get('sample.txt')\",\n \" self.assertFalse(found)\",\n \" self.assertEquals(stream, None)\",\n \" self.assertEquals(\\n VfsCacheConnection.CACHE_EXPIRE.value - old_expire_count, 1)\",\n \" def test_no_metadata_and_no_data_is_evicted(self):\\n ProcessScopedVfsCache.clear_all()\\n conn = VfsCacheConnection('ns_test')\\n\\n conn.put('sample.txt', None, None)\\n\\n meta = FileMetadataEntity()\\n meta.key = 'sample/txt'\",\n \" ProcessScopedVfsCache.clear_all()\",\n \" conn = VfsCacheConnection('ns_test')\",\n \" conn.put('sample.txt', None, None)\",\n \" meta = FileMetadataEntity()\",\n \" meta.key = 'sample/txt'\",\n \" updates = {'sample.txt': meta}\",\n \" conn.apply_updates(updates)\",\n \" found, stream = conn.get('sample.txt')\",\n \" self.assertFalse(found)\",\n \" self.assertEquals(stream, None)\",\n \" def test_metadata_but_no_data_is_evicted(self):\\n ProcessScopedVfsCache.clear_all()\\n conn = VfsCacheConnection('ns_test')\\n\\n meta = FileMetadataEntity()\\n meta.is_draft = True\\n meta.updated_on = datetime.datetime.utcnow()\\n conn.put('sample.txt', meta, None)\",\n \" ProcessScopedVfsCache.clear_all()\",\n \" conn = VfsCacheConnection('ns_test')\",\n \" meta = FileMetadataEntity()\",\n \" meta.is_draft = True\",\n \" meta.updated_on = datetime.datetime.utcnow()\",\n \" conn.put('sample.txt', meta, None)\",\n \" meta = FileMetadataEntity()\",\n \" meta.key = 'sample/txt'\",\n \" updates = {'sample.txt': meta}\",\n \" conn.apply_updates(updates)\",\n \" found, stream = conn.get('sample.txt')\",\n \" self.assertFalse(found)\",\n \" self.assertEquals(stream, None)\",\n \"def run_all_unit_tests():\\n \\\"\\\"\\\"Runs all unit tests in this module.\\\"\\\"\\\"\\n suites_list = []\\n for test_class in [VfsTests]:\\n suite = unittest.TestLoader().loadTestsFromTestCase(test_class)\\n suites_list.append(suite)\\n result = unittest.TextTestRunner().run(unittest.TestSuite(suites_list))\\n if not result.wasSuccessful() or result.errors:\",\n \" \\\"\\\"\\\"Runs all unit tests in this module.\\\"\\\"\\\"\",\n \" suites_list = []\",\n \" for test_class in [VfsTests]:\\n suite = unittest.TestLoader().loadTestsFromTestCase(test_class)\\n suites_list.append(suite)\",\n \" suite = unittest.TestLoader().loadTestsFromTestCase(test_class)\",\n \" suites_list.append(suite)\",\n \" result = unittest.TextTestRunner().run(unittest.TestSuite(suites_list))\",\n \" if not result.wasSuccessful() or result.errors:\\n raise Exception(result)\",\n \"if __name__ == '__main__':\\n run_all_unit_tests()\",\n \" run_all_unit_tests()\"\n]","isConversational":false}}},{"rowIdx":4783,"cells":{"code":{"kind":"string","value":"# Copyright 2012 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Student progress trackers.\"\"\"\n\n__author__ = 'Sean Lip (sll@google.com)'\n\nimport datetime\nimport logging\nimport os\nfrom collections import defaultdict\n\nimport courses\nimport transforms\n\nfrom common import utils\nfrom models import QuestionDAO\nfrom models import QuestionGroupDAO\nfrom models import StudentPropertyEntity\nfrom tools import verify\n\n\n# Names of component tags that are tracked for progress calculations.\nTRACKABLE_COMPONENTS = [\n 'question',\n 'question-group',\n]\n\n\nclass UnitLessonCompletionTracker(object):\n \"\"\"Tracks student completion for a unit/lesson-based linear course.\"\"\"\n\n PROPERTY_KEY = 'linear-course-completion'\n\n # Here are representative examples of the keys for the various entities\n # used in this class:\n # Unit 1: u.1\n # Unit 1, Lesson 1: u.1.l.1\n # Unit 1, Lesson 1, Activity 0: u.1.l.1.a.0\n # Unit 1, Lesson 1, Activity 0, Block 4: u.1.l.1.a.0.b.4\n # Assessment 'Pre': s.Pre\n # At the moment, we do not divide assessments into blocks.\n #\n # The following keys were added in v1.5:\n # Unit 1, Lesson 1, HTML: u.1.l.1.h.0\n # Unit 1, Lesson 1, HTML, Component with instanceid id: u.1.l.1.h.0.c.id\n #\n # The number after the 'h' and 'a' codes is always zero, since a lesson may\n # have at most one HTML body and one activity.\n #\n # IMPORTANT NOTE: The values of the keys mean different things depending on\n # whether the entity is a composite entity or not.\n # If it is a composite entity (unit, lesson, activity), then the value is\n # - 0 if none of its sub-entities has been completed\n # - 1 if some, but not all, of its sub-entities have been completed\n # - 2 if all its sub-entities have been completed.\n # If it is not a composite entity (i.e. block, assessment, component), then\n # the value is just the number of times the event has been triggered.\n\n # Constants for recording the state of composite entities.\n # TODO(sll): Change these to enums.\n NOT_STARTED_STATE = 0\n IN_PROGRESS_STATE = 1\n COMPLETED_STATE = 2\n\n MULTIPLE_CHOICE = 'multiple choice'\n MULTIPLE_CHOICE_GROUP = 'multiple choice group'\n QUESTION_GROUP = 'question-group'\n QUESTION = 'question'\n\n EVENT_CODE_MAPPING = {\n 'course': 'r',\n 'course_forced': 'r',\n 'unit': 'u',\n 'unit_forced': 'u',\n 'lesson': 'l',\n 'activity': 'a',\n 'html': 'h',\n 'block': 'b',\n 'assessment': 's',\n 'component': 'c',\n 'custom_unit': 'x'\n }\n COMPOSITE_ENTITIES = [\n EVENT_CODE_MAPPING['course'],\n EVENT_CODE_MAPPING['unit'],\n EVENT_CODE_MAPPING['lesson'],\n EVENT_CODE_MAPPING['activity'],\n EVENT_CODE_MAPPING['html'],\n EVENT_CODE_MAPPING['custom_unit']\n ]\n\n POST_UPDATE_PROGRESS_HOOK = []\n\n def __init__(self, course):\n self._course = course\n\n def _get_course(self):\n return self._course\n\n def get_activity_as_python(self, unit_id, lesson_id):\n \"\"\"Gets the corresponding activity as a Python object.\"\"\"\n root_name = 'activity'\n course = self._get_course()\n activity_text = course.app_context.fs.get(\n os.path.join(course.app_context.get_home(),\n course.get_activity_filename(unit_id, lesson_id)))\n content, noverify_text = verify.convert_javascript_to_python(\n activity_text, root_name)\n activity = verify.evaluate_python_expression_from_text(\n content, root_name, verify.Activity().scope, noverify_text)\n return activity\n\n def _get_course_key(self):\n return '%s.0' % (\n self.EVENT_CODE_MAPPING['course'],\n )\n\n def _get_unit_key(self, unit_id):\n return '%s.%s' % (self.EVENT_CODE_MAPPING['unit'], unit_id)\n\n def _get_custom_unit_key(self, unit_id):\n return '%s.%s' % (self.EVENT_CODE_MAPPING['custom_unit'], unit_id)\n\n def _get_lesson_key(self, unit_id, lesson_id):\n return '%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id\n )\n\n def _get_activity_key(self, unit_id, lesson_id):\n return '%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['activity'], 0\n )\n\n def _get_html_key(self, unit_id, lesson_id):\n return '%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['html'], 0\n )\n\n def _get_component_key(self, unit_id, lesson_id, component_id):\n return '%s.%s.%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['html'], 0,\n self.EVENT_CODE_MAPPING['component'], component_id\n )\n\n def _get_block_key(self, unit_id, lesson_id, block_id):\n return '%s.%s.%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['activity'], 0,\n self.EVENT_CODE_MAPPING['block'], block_id\n )\n\n def _get_assessment_key(self, assessment_id):\n assessment_key = '%s.%s' % (\n self.EVENT_CODE_MAPPING['assessment'], assessment_id)\n\n # If this assessment is used as a \"lesson\" within a unit, prepend\n # the unit identifier.\n parent_unit = self._get_course().get_parent_unit(assessment_id)\n if parent_unit:\n assessment_key = '.'.join([self._get_unit_key(parent_unit.unit_id),\n assessment_key])\n return assessment_key\n\n def get_entity_type_from_key(self, progress_entity_key):\n return progress_entity_key.split('.')[-2]\n\n def determine_if_composite_entity(self, progress_entity_key):\n return self.get_entity_type_from_key(\n progress_entity_key) in self.COMPOSITE_ENTITIES\n\n def get_valid_component_ids(self, unit_id, lesson_id):\n \"\"\"Returns a list of cpt ids representing trackable components.\"\"\"\n components = []\n for cpt_name in TRACKABLE_COMPONENTS:\n all_cpts = self._get_course().get_components_with_name(\n unit_id, lesson_id, cpt_name)\n components += [\n cpt['instanceid'] for cpt in all_cpts if cpt['instanceid']]\n return components\n\n def get_valid_block_ids(self, unit_id, lesson_id):\n \"\"\"Returns a list of block ids representing interactive activities.\"\"\"\n valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\n return [block[0] for block in valid_blocks_data]\n\n def get_valid_blocks(self, unit_id, lesson_id):\n \"\"\"Returns a list of blocks representing interactive activities.\"\"\"\n valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\n return [block[1] for block in valid_blocks_data]\n\n def _get_valid_blocks_data(self, unit_id, lesson_id):\n \"\"\"Returns a list of (b_id, block) representing trackable activities.\"\"\"\n valid_blocks = []\n\n # Check if activity exists before calling get_activity_as_python.\n unit = self._get_course().find_unit_by_id(unit_id)\n lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\n if unit and lesson and lesson.activity:\n # Get the activity corresponding to this unit/lesson combination.\n activity = self.get_activity_as_python(unit_id, lesson_id)\n for block_id in range(len(activity['activity'])):\n block = activity['activity'][block_id]\n if isinstance(block, dict):\n valid_blocks.append((block_id, block))\n return valid_blocks\n\n def get_id_to_questions_dict(self):\n \"\"\"Returns a dict that maps each question to a list of its answers.\n\n Returns:\n A dict that represents the questions in lessons. The keys of this\n dict are question ids, and the corresponding values are dicts, each\n containing the following five key-value pairs:\n - answers: a list of 0's with length corresponding to number of\n choices a question has.\n - location: str. href value of the location of the question in the\n course.\n - num_attempts: int. Number of attempts for this question. This is\n used as the denominator when calculating the average score for a\n question. This value may differ from the sum of the elements in\n 'answers' because of event entities that record an answer but\n not a score.\n - score: int. Aggregated value of the scores.\n - label: str. Human readable identifier for this question.\n \"\"\"\n id_to_questions = {}\n for unit in self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT):\n unit_id = unit.unit_id\n for lesson in self._get_course().get_lessons(unit_id):\n lesson_id = lesson.lesson_id\n # Add mapping dicts for questions in old-style activities.\n if lesson.activity:\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\n for block_index, (block_id, block) in enumerate(blocks):\n if block['questionType'] == self.MULTIPLE_CHOICE:\n # Old style question.\n id_to_questions.update(\n self._create_old_style_question_dict(\n block, block_id, block_index, unit, lesson))\n\n elif (block['questionType'] ==\n self.MULTIPLE_CHOICE_GROUP):\n # Old style multiple choice group.\n for ind, q in enumerate(block['questionsList']):\n id_to_questions.update(\n self._create_old_style_question_dict(\n q, block_id, block_index, unit,\n lesson, index=ind))\n\n # Add mapping dicts for CBv1.5 style questions.\n if lesson.objectives:\n for cpt in self._get_course().get_question_components(\n unit_id, lesson_id):\n # CB v1.5 style questions.\n id_to_questions.update(\n self._create_v15_lesson_question_dict(\n cpt, unit, lesson))\n\n for cpt in self._get_course().get_question_group_components(\n unit_id, lesson_id):\n # CB v1.5 style question groups.\n id_to_questions.update(\n self._create_v15_lesson_question_group_dict(\n cpt, unit, lesson))\n\n return id_to_questions\n\n def get_id_to_assessments_dict(self):\n \"\"\"Returns a dict that maps each question to a list of its answers.\n\n Returns:\n A dict that represents the questions in assessments. The keys of\n this dict are question ids, and the corresponding values are dicts,\n each containing the following five key-value pairs:\n - answers: a list of 0's with length corresponding to number of\n choices a question has.\n - location: str. href value of the location of the question in the\n course.\n - num_attempts: int. Number of attempts for this question. This is\n used as the denominator when calculating the average score for a\n question. This value may differ from the sum of the elements in\n 'answers' because of event entities that record an answer but\n not a score.\n - score: int. Aggregated value of the scores.\n - label: str. Human readable identifier for this question.\n \"\"\"\n id_to_assessments = {}\n for assessment in self._get_course().get_assessment_list():\n if not self._get_course().needs_human_grader(assessment):\n assessment_components = self._get_course(\n ).get_assessment_components(assessment.unit_id)\n # CB v1.5 style assessments.\n for cpt in assessment_components:\n if cpt['cpt_name'] == self.QUESTION_GROUP:\n id_to_assessments.update(\n self._create_v15_assessment_question_group_dict(\n cpt, assessment))\n elif cpt['cpt_name'] == self.QUESTION:\n id_to_assessments.update(\n self._create_v15_assessment_question_dict(\n cpt, assessment))\n\n # Old style javascript assessments.\n try:\n content = self._get_course().get_assessment_content(\n assessment)\n id_to_assessments.update(\n self._create_old_style_assessment_dict(\n content['assessment'], assessment))\n except AttributeError:\n # Assessment file does not exist.\n continue\n\n return id_to_assessments\n\n def _get_link_for_assessment(self, assessment_id):\n return 'assessment?name=%s' % (assessment_id)\n\n def _get_link_for_activity(self, unit_id, lesson_id):\n return 'activity?unit=%s&lesson=%s' % (unit_id, lesson_id)\n\n def _get_link_for_lesson(self, unit_id, lesson_id):\n return 'unit?unit=%s&lesson=%s' % (unit_id, lesson_id)\n\n def _create_v15_question_dict(self, q_id, label, link, num_choices):\n \"\"\"Returns a dict that represents CB v1.5 style question.\"\"\"\n return {\n q_id: {\n 'answer_counts': [0] * num_choices,\n 'label': label,\n 'location': link,\n 'score': 0,\n 'num_attempts': 0\n }\n }\n\n def _create_v15_lesson_question_dict(self, cpt, unit, lesson):\n try:\n question = QuestionDAO.load(cpt['quid'])\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\n label = 'Unit %s Lesson %s, Question %s' % (\n unit.index, lesson.index, question.description)\n link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)\n num_choices = len(question.dict['choices'])\n return self._create_v15_question_dict(\n q_id, label, link, num_choices)\n else:\n return {}\n except Exception as e: # pylint: disable=broad-except\n logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)\n return {}\n\n def _create_v15_lesson_question_group_dict(self, cpt, unit, lesson):\n try:\n question_group = QuestionGroupDAO.load(cpt['qgid'])\n questions = {}\n for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\n label = ('Unit %s Lesson %s, Question Group %s Question %s'\n % (unit.index, lesson.index,\n question_group.description,\n question.description))\n link = self._get_link_for_lesson(\n unit.unit_id, lesson.lesson_id)\n num_choices = len(question.dict['choices'])\n questions.update(self._create_v15_question_dict(\n q_id, label, link, num_choices))\n return questions\n except Exception as e: # pylint: disable=broad-except\n logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)\n return {}\n\n def _create_v15_assessment_question_group_dict(self, cpt, assessment):\n try:\n question_group = QuestionGroupDAO.load(cpt['qgid'])\n questions = {}\n for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s.i.%s' % (\n assessment.unit_id, cpt['instanceid'], ind)\n label = '%s, Question Group %s Question %s' % (\n assessment.title, question_group.description,\n question.description)\n link = self._get_link_for_assessment(assessment.unit_id)\n num_choices = len(question.dict['choices'])\n questions.update(\n self._create_v15_question_dict(\n q_id, label, link, num_choices))\n return questions\n except Exception as e: # pylint: disable=broad-except\n logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)\n return {}\n\n def _create_v15_assessment_question_dict(self, cpt, assessment):\n try:\n question = QuestionDAO.load(cpt['quid'])\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\n label = '%s, Question %s' % (\n assessment.title, question.description)\n link = self._get_link_for_assessment(assessment.unit_id)\n num_choices = len(question.dict['choices'])\n return self._create_v15_question_dict(\n q_id, label, link, num_choices)\n else:\n return {}\n except Exception as e: # pylint: disable=broad-except\n logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)\n return {}\n\n def _create_old_style_question_dict(self, block, block_id, block_index,\n unit, lesson, index=None):\n try:\n if index is not None:\n # Question is in a multiple choice group.\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, block_id, index)\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\n unit.index, lesson.index, block_index + 1, index + 1)\n else:\n b_id = 'u.%s.l.%s.b.%s' % (\n unit.unit_id, lesson.lesson_id, block_id)\n label = 'Unit %s Lesson %s Activity, Item %s' % (\n unit.index, lesson.index, block_index + 1)\n return {\n b_id: {\n 'answer_counts': [0] * len(block['choices']),\n 'label': label,\n 'location': self._get_link_for_activity(\n unit.unit_id, lesson.lesson_id),\n 'score': 0,\n 'num_attempts': 0\n }\n }\n except Exception as e: # pylint: disable=broad-except\n logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, block)\n return {}\n\n def _create_old_style_assessment_dict(self, content, assessment):\n try:\n questions = {}\n for ind, question in enumerate(content['questionsList']):\n if 'choices' in question:\n questions.update(\n {\n 's.%s.i.%s' % (assessment.unit_id, ind): {\n 'answer_counts': [0] * len(question['choices']),\n 'label': '%s, Question %s' % (\n assessment.title, ind + 1),\n 'location': self._get_link_for_assessment(\n assessment.unit_id),\n 'score': 0,\n 'num_attempts': 0\n }\n }\n )\n return questions\n except Exception as e: # pylint: disable=broad-except\n logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, content)\n return {}\n\n def _update_course(self, progress, student):\n event_key = self._get_course_key()\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return\n\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\n course = self._get_course()\n for unit in course.get_track_matching_student(student):\n if course.get_parent_unit(unit.unit_id):\n # Completion of an assessment-as-lesson rolls up to its\n # containing unit; it is not considered for overall course\n # completion (except insofar as assessment completion\n # contributes to the completion of its owning unit)\n pass\n else:\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n if not self.is_assessment_completed(progress, unit.unit_id):\n return\n elif unit.type == verify.UNIT_TYPE_UNIT:\n unit_state = self.get_unit_status(progress, unit.unit_id)\n if unit_state != self.COMPLETED_STATE:\n return\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_course_forced(self, progress):\n \"\"\"Force state of course to completed.\"\"\"\n\n event_key = self._get_course_key()\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_unit(self, progress, event_key):\n \"\"\"Updates a unit's progress if all its lessons have been completed.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 2\n unit_id = split_event_key[1]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return\n\n # Record that at least one lesson in this unit has been completed.\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\n\n # Check if all lessons in this unit have been completed.\n lessons = self._get_course().get_lessons(unit_id)\n for lesson in lessons:\n if (self.get_lesson_status(\n progress,\n unit_id, lesson.lesson_id) != self.COMPLETED_STATE):\n return\n\n # Check whether pre/post assessments in this unit have been completed.\n unit = self._get_course().find_unit_by_id(unit_id)\n pre_assessment_id = unit.pre_assessment\n if (pre_assessment_id and\n not self.get_assessment_status(progress, pre_assessment_id)):\n return\n post_assessment_id = unit.post_assessment\n if (post_assessment_id and\n not self.get_assessment_status(progress, post_assessment_id)):\n return\n\n # Record that all lessons in this unit have been completed.\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_unit_forced(self, progress, event_key):\n \"\"\"Force-mark a unit as completed, ignoring normal criteria.\"\"\"\n\n # Record that all lessons in this unit have been completed.\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_lesson(self, progress, event_key):\n \"\"\"Updates a lesson's progress based on the progress of its children.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 4\n unit_id = split_event_key[1]\n lesson_id = split_event_key[3]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return\n\n # Record that at least one part of this lesson has been completed.\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\n\n lessons = self._get_course().get_lessons(unit_id)\n for lesson in lessons:\n if str(lesson.lesson_id) == lesson_id and lesson:\n # Is the activity completed?\n if (lesson.activity and self.get_activity_status(\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\n return\n\n # Are all components of the lesson completed?\n if (self.get_html_status(\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\n return\n\n # Record that all activities in this lesson have been completed.\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_activity(self, progress, event_key):\n \"\"\"Updates activity's progress when all interactive blocks are done.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 6\n unit_id = split_event_key[1]\n lesson_id = split_event_key[3]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return\n\n # Record that at least one block in this activity has been completed.\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\n\n valid_block_ids = self.get_valid_block_ids(unit_id, lesson_id)\n for block_id in valid_block_ids:\n if not self.is_block_completed(\n progress, unit_id, lesson_id, block_id):\n return\n\n # Record that all blocks in this activity have been completed.\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_html(self, progress, event_key):\n \"\"\"Updates html's progress when all interactive blocks are done.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 6\n unit_id = split_event_key[1]\n lesson_id = split_event_key[3]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return\n\n # Record that at least one block in this activity has been completed.\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\n\n cpt_ids = self.get_valid_component_ids(unit_id, lesson_id)\n for cpt_id in cpt_ids:\n if not self.is_component_completed(\n progress, unit_id, lesson_id, cpt_id):\n return\n\n # Record that all blocks in this activity have been completed.\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\n\n def _update_custom_unit(self, student, event_key, state):\n \"\"\"Update custom unit.\"\"\"\n if student.is_transient:\n return\n progress = self.get_or_create_progress(student)\n current_state = self._get_entity_value(progress, event_key)\n if current_state == state or current_state == self.COMPLETED_STATE:\n return\n self._set_entity_value(progress, event_key, state)\n progress.updated_on = datetime.datetime.now()\n progress.put()\n\n UPDATER_MAPPING = {\n 'activity': _update_activity,\n 'course': _update_course,\n 'course_forced': _update_course_forced,\n 'html': _update_html,\n 'lesson': _update_lesson,\n 'unit': _update_unit,\n 'unit_forced': _update_unit_forced,\n }\n\n # Dependencies for recording derived events. The key is the current\n # event, and the value is a tuple, each element of which contains:\n # - the dependent entity to be updated\n # - the transformation to apply to the id of the current event to get the\n # id for the derived parent event\n DERIVED_EVENTS = {\n 'block': (\n {\n 'entity': 'activity',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n 'activity': (\n {\n 'entity': 'lesson',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n 'lesson': (\n {\n 'entity': 'unit',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n 'component': (\n {\n 'entity': 'html',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n 'html': (\n {\n 'entity': 'lesson',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n 'assessment': (\n {\n 'entity': 'unit',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n }\n\n def force_course_completed(self, student):\n self._put_event(\n student, 'course_forced', self._get_course_key())\n\n def force_unit_completed(self, student, unit_id):\n \"\"\"Records that the given student has completed a unit.\n\n NOTE: This should not generally be used directly. The definition\n of completing a unit is generally taken to be completion of all\n parts of all components of a unit (assessments, lessons,\n activities in lessons, etc. Directly marking a unit as complete\n is provided only for manual marking where the student feels \"done\",\n but has not taken a fully completionist approach to the material.\n\n Args:\n student: A logged-in, registered student object.\n unit_id: The ID of the unit to be marked as complete.\n \"\"\"\n self._put_event(\n student, 'unit_forced', self._get_unit_key(unit_id))\n\n def put_activity_completed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has completed an activity.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n self._put_event(\n student, 'activity', self._get_activity_key(unit_id, lesson_id))\n\n def put_html_completed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has completed a lesson page.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n self._put_event(\n student, 'html', self._get_html_key(unit_id, lesson_id))\n\n def put_block_completed(self, student, unit_id, lesson_id, block_id):\n \"\"\"Records that the given student has completed an activity block.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n if block_id not in self.get_valid_block_ids(unit_id, lesson_id):\n return\n self._put_event(\n student,\n 'block',\n self._get_block_key(unit_id, lesson_id, block_id)\n )\n\n def put_component_completed(self, student, unit_id, lesson_id, cpt_id):\n \"\"\"Records completion of a component in a lesson body.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n if cpt_id not in self.get_valid_component_ids(unit_id, lesson_id):\n return\n self._put_event(\n student,\n 'component',\n self._get_component_key(unit_id, lesson_id, cpt_id)\n )\n\n def put_assessment_completed(self, student, assessment_id):\n \"\"\"Records that the given student has completed the given assessment.\"\"\"\n if not self._get_course().is_valid_assessment_id(assessment_id):\n return\n self._put_event(\n student, 'assessment', self._get_assessment_key(assessment_id))\n\n def put_custom_unit_completed(self, student, unit_id):\n \"\"\"Records that the student has completed the given custom_unit.\"\"\"\n if not self._get_course().is_valid_custom_unit(unit_id):\n return\n self._update_custom_unit(\n student, self._get_custom_unit_key(unit_id),\n self.COMPLETED_STATE)\n\n def put_custom_unit_in_progress(self, student, unit_id):\n \"\"\"Records that the given student has started the given custom_unit.\"\"\"\n if not self._get_course().is_valid_custom_unit(unit_id):\n return\n self._update_custom_unit(\n student, self._get_custom_unit_key(unit_id),\n self.IN_PROGRESS_STATE)\n\n def put_activity_accessed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has accessed this activity.\"\"\"\n # This method currently exists because we need to mark activities\n # without interactive blocks as 'completed' when they are accessed.\n if not self.get_valid_block_ids(unit_id, lesson_id):\n self.put_activity_completed(student, unit_id, lesson_id)\n\n def put_html_accessed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has accessed this lesson page.\"\"\"\n # This method currently exists because we need to mark lesson bodies\n # without interactive blocks as 'completed' when they are accessed.\n if not self.get_valid_component_ids(unit_id, lesson_id):\n self.put_html_completed(student, unit_id, lesson_id)\n\n def _put_event(self, student, event_entity, event_key):\n \"\"\"Starts a cascade of updates in response to an event taking place.\"\"\"\n if student.is_transient or event_entity not in self.EVENT_CODE_MAPPING:\n return\n\n progress = self.get_or_create_progress(student)\n\n self._update_event(\n student, progress, event_entity, event_key, direct_update=True)\n\n progress.updated_on = datetime.datetime.now()\n progress.put()\n\n def _update_event(self, student, progress, event_entity, event_key,\n direct_update=False):\n \"\"\"Updates statistics for the given event, and for derived events.\n\n Args:\n student: the student\n progress: the StudentProgressEntity for the student\n event_entity: the name of the affected entity (unit, lesson, etc.)\n event_key: the key for the recorded event\n direct_update: True if this event is being updated explicitly; False\n if it is being auto-updated.\n \"\"\"\n if direct_update or event_entity not in self.UPDATER_MAPPING:\n if event_entity in self.UPDATER_MAPPING:\n # This is a derived event, so directly mark it as completed.\n self._set_entity_value(\n progress, event_key, self.COMPLETED_STATE)\n else:\n # This is not a derived event, so increment its counter by one.\n self._inc(progress, event_key)\n else:\n self.UPDATER_MAPPING[event_entity](self, progress, event_key)\n\n if event_entity in self.DERIVED_EVENTS:\n for derived_event in self.DERIVED_EVENTS[event_entity]:\n parent_event_key = derived_event['generate_parent_id'](\n event_key)\n if parent_event_key:\n # Event entities may contribute upwards to more than one\n # kind of container. Only pass the notification up to the\n # handler that our event_key indicates we actually have.\n leaf_type = self.get_entity_type_from_key(parent_event_key)\n event_entity = derived_event['entity']\n if leaf_type == self.EVENT_CODE_MAPPING[event_entity]:\n self._update_event(\n student=student,\n progress=progress,\n event_entity=event_entity,\n event_key=parent_event_key)\n else:\n # Only update course status when we are at the top of\n # a containment list\n self._update_course(progress, student)\n else:\n # Or only update course status when we are doing something not\n # in derived events (Unit, typically).\n self._update_course(progress, student)\n utils.run_hooks(self.POST_UPDATE_PROGRESS_HOOK, self._get_course(),\n student, progress, event_entity, event_key)\n\n def get_course_status(self, progress):\n return self._get_entity_value(progress, self._get_course_key())\n\n def get_unit_status(self, progress, unit_id):\n return self._get_entity_value(progress, self._get_unit_key(unit_id))\n\n def get_custom_unit_status(self, progress, unit_id):\n return self._get_entity_value(\n progress, self._get_custom_unit_key(unit_id))\n\n def get_lesson_status(self, progress, unit_id, lesson_id):\n return self._get_entity_value(\n progress, self._get_lesson_key(unit_id, lesson_id))\n\n def get_activity_status(self, progress, unit_id, lesson_id):\n return self._get_entity_value(\n progress, self._get_activity_key(unit_id, lesson_id))\n\n def get_html_status(self, progress, unit_id, lesson_id):\n return self._get_entity_value(\n progress, self._get_html_key(unit_id, lesson_id))\n\n def get_block_status(self, progress, unit_id, lesson_id, block_id):\n return self._get_entity_value(\n progress, self._get_block_key(unit_id, lesson_id, block_id))\n\n def get_assessment_status(self, progress, assessment_id):\n return self._get_entity_value(\n progress, self._get_assessment_key(assessment_id))\n\n def is_block_completed(self, progress, unit_id, lesson_id, block_id):\n value = self._get_entity_value(\n progress, self._get_block_key(unit_id, lesson_id, block_id))\n return value is not None and value > 0\n\n def is_component_completed(self, progress, unit_id, lesson_id, cpt_id):\n value = self._get_entity_value(\n progress, self._get_component_key(unit_id, lesson_id, cpt_id))\n return value is not None and value > 0\n\n def is_assessment_completed(self, progress, assessment_id):\n value = self._get_entity_value(\n progress, self._get_assessment_key(assessment_id))\n return value is not None and value > 0\n\n def is_custom_unit_completed(self, progress, unit_id):\n value = self.get_custom_unit_status(progress, unit_id)\n return self.COMPLETED_STATE == value\n\n @classmethod\n def get_or_create_progress(cls, student):\n progress = StudentPropertyEntity.get(student, cls.PROPERTY_KEY)\n if not progress:\n progress = StudentPropertyEntity.create(\n student=student, property_name=cls.PROPERTY_KEY)\n progress.put()\n return progress\n\n def get_course_progress(self, student):\n \"\"\"Return [NOT_STARTED|IN_PROGRESS|COMPLETED]_STATE for course.\"\"\"\n progress = self.get_or_create_progress(student)\n return self.get_course_status(progress) or self.NOT_STARTED_STATE\n\n def get_unit_progress(self, student, progress=None):\n \"\"\"Returns a dict with the states of each unit.\"\"\"\n if student.is_transient:\n return {}\n\n units = self._get_course().get_units()\n if progress is None:\n progress = self.get_or_create_progress(student)\n\n result = {}\n for unit in units:\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n result[unit.unit_id] = self.is_assessment_completed(\n progress, unit.unit_id)\n elif unit.type == verify.UNIT_TYPE_UNIT:\n value = self.get_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0\n elif unit.type == verify.UNIT_TYPE_CUSTOM:\n value = self.get_custom_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0\n\n return result\n\n def get_unit_percent_complete(self, student):\n \"\"\"Returns a dict with each unit's completion in [0.0, 1.0].\"\"\"\n if student.is_transient:\n return {}\n\n course = self._get_course()\n units = course.get_units()\n assessment_scores = {int(s['id']): s['score'] / 100.0\n for s in course.get_all_scores(student)}\n result = {}\n progress = self.get_or_create_progress(student)\n for unit in units:\n # Assessments are scored as themselves.\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n result[unit.unit_id] = assessment_scores[unit.unit_id]\n elif unit.type == verify.UNIT_TYPE_UNIT:\n if (unit.pre_assessment and\n assessment_scores[unit.pre_assessment] >= 1.0):\n # Use pre-assessment iff it exists and student scored 100%\n result[unit.unit_id] = 1.0\n else:\n # Otherwise, count % completion on lessons within unit.\n num_completed = 0\n lesson_progress = self.get_lesson_progress(\n student, unit.unit_id, progress=progress)\n if not lesson_progress:\n result[unit.unit_id] = 0.0\n else:\n for lesson in lesson_progress.values():\n if lesson['has_activity']:\n # Lessons that have activities must be\n # activity-complete as well as HTML complete.\n if (lesson['html'] == self.COMPLETED_STATE and\n lesson['activity'] == self.COMPLETED_STATE):\n num_completed += 1\n else:\n # Lessons without activities just need HTML\n if lesson['html'] == self.COMPLETED_STATE:\n num_completed += 1\n result[unit.unit_id] = round(\n num_completed / float(len(lesson_progress)), 3)\n return result\n\n def get_lesson_progress(self, student, unit_id, progress=None):\n \"\"\"Returns a dict saying which lessons in this unit are completed.\"\"\"\n if student.is_transient:\n return {}\n\n lessons = self._get_course().get_lessons(unit_id)\n if progress is None:\n progress = self.get_or_create_progress(student)\n\n result = {}\n for lesson in lessons:\n result[lesson.lesson_id] = {\n 'html': self.get_html_status(\n progress, unit_id, lesson.lesson_id) or 0,\n 'activity': self.get_activity_status(\n progress, unit_id, lesson.lesson_id) or 0,\n 'has_activity': lesson.has_activity,\n }\n return result\n\n def get_component_progress(self, student, unit_id, lesson_id, cpt_id):\n \"\"\"Returns the progress status of the given component.\"\"\"\n if student.is_transient:\n return 0\n\n progress = self.get_or_create_progress(student)\n return self.is_component_completed(\n progress, unit_id, lesson_id, cpt_id) or 0\n\n def _get_entity_value(self, progress, event_key):\n if not progress.value:\n return None\n return transforms.loads(progress.value).get(event_key)\n\n def _set_entity_value(self, student_property, key, value):\n \"\"\"Sets the integer value of a student property.\n\n Note: this method does not commit the change. The calling method should\n call put() on the StudentPropertyEntity.\n\n Args:\n student_property: the StudentPropertyEntity\n key: the student property whose value should be incremented\n value: the value to increment this property by\n \"\"\"\n try:\n progress_dict = transforms.loads(student_property.value)\n except (AttributeError, TypeError):\n progress_dict = {}\n\n progress_dict[key] = value\n student_property.value = transforms.dumps(progress_dict)\n\n def _inc(self, student_property, key, value=1):\n \"\"\"Increments the integer value of a student property.\n\n Note: this method does not commit the change. The calling method should\n call put() on the StudentPropertyEntity.\n\n Args:\n student_property: the StudentPropertyEntity\n key: the student property whose value should be incremented\n value: the value to increment this property by\n \"\"\"\n try:\n progress_dict = transforms.loads(student_property.value)\n except (AttributeError, TypeError):\n progress_dict = {}\n\n if key not in progress_dict:\n progress_dict[key] = 0\n\n progress_dict[key] += value\n student_property.value = transforms.dumps(progress_dict)\n\n @classmethod\n def get_elements_from_key(cls, key):\n \"\"\"Decomposes the key into a dictionary with its values.\n\n Args:\n key: a string, the key of an element of the progress. For\n example, u.1.l.5.h.0\n\n Returns:\n A dictionary mapping each element in the key to its value. For\n the key u.1.l.5.h.0 the result is:\n {\n 'unit': 1,\n 'lesson': 5,\n 'html': 0,\n 'unit_forced': 1\n }\n \"\"\"\n reversed_event_mapping = defaultdict(lambda: [])\n for full_type, value in cls.EVENT_CODE_MAPPING.iteritems():\n reversed_event_mapping[value].append(full_type)\n\n key_elements = key.split('.')\n assert len(key_elements) % 2 == 0\n result = {}\n for index in range(0, len(key_elements), 2):\n element_type = key_elements[index]\n element_value = key_elements[index + 1]\n full_element_types = reversed_event_mapping.get(element_type)\n for full_element_type in full_element_types:\n result[full_element_type] = element_value\n return result\n\n\nclass ProgressStats(object):\n \"\"\"Defines the course structure definition for course progress tracking.\"\"\"\n\n def __init__(self, course):\n self._course = course\n self._tracker = UnitLessonCompletionTracker(course)\n\n def compute_entity_dict(self, entity, parent_ids):\n \"\"\"Computes the course structure dictionary.\n\n Args:\n entity: str. Represents for which level of entity the dict is being\n computed. Valid entity levels are defined as keys to the dict\n defined below, COURSE_STRUCTURE_DICT.\n parent_ids: list of ids necessary to get children of the current\n entity.\n Returns:\n A nested dictionary representing the structure of the course.\n Every other level of the dictionary consists of a key, the label of\n the entity level defined by EVENT_CODE_MAPPING in\n UnitLessonCompletionTracker, whose value is a dictionary\n INSTANCES_DICT. The keys of INSTANCES_DICT are instance_ids of the\n corresponding entities, and the values are the entity_dicts of the\n instance's children, in addition to a field called 'label'. Label\n represents the user-facing name of the entity rather than\n its intrinsic id. If one of these values is empty, this means\n that the corresponding entity has no children.\n\n Ex:\n A Course with the following outlined structure:\n Pre Assessment\n Unit 1\n Lesson 1\n Unit 2\n\n will have the following dictionary representation:\n {\n 's': {\n 1: {\n 'label': 'Pre Assessment'\n }\n },\n 'u': {\n 2: {\n 'l': {\n 3: {\n 'label': 1\n }\n },\n 'label': 1\n },\n 4: {\n 'label': 2\n }\n }\n 'label': 'UNTITLED COURSE'\n }\n \"\"\"\n entity_dict = {'label': self._get_label(entity, parent_ids)}\n for child_entity, get_children_ids in self.COURSE_STRUCTURE_DICT[\n entity]['children']:\n child_entity_dict = {}\n for child_id in get_children_ids(self, *parent_ids):\n new_parent_ids = parent_ids + [child_id]\n child_entity_dict[child_id] = self.compute_entity_dict(\n child_entity, new_parent_ids)\n entity_dict[UnitLessonCompletionTracker.EVENT_CODE_MAPPING[\n child_entity]] = child_entity_dict\n return entity_dict\n\n def _get_course(self):\n return self._course\n\n def _get_unit_ids_of_type_unit(self):\n units = self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT)\n return [unit.unit_id for unit in units]\n\n def _get_assessment_ids(self):\n assessments = self._get_course().get_assessment_list()\n return [a.unit_id for a in assessments]\n\n def _get_lesson_ids(self, unit_id):\n lessons = self._get_course().get_lessons(unit_id)\n return [lesson.lesson_id for lesson in lessons]\n\n def _get_activity_ids(self, unit_id, lesson_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n if self._get_course().find_lesson_by_id(unit, lesson_id).activity:\n return [0]\n return []\n\n def _get_html_ids(self, unused_unit_id, unused_lesson_id):\n return [0]\n\n def _get_block_ids(self, unit_id, lesson_id, unused_activity_id):\n return self._tracker.get_valid_block_ids(unit_id, lesson_id)\n\n def _get_component_ids(self, unit_id, lesson_id, unused_html_id):\n return self._tracker.get_valid_component_ids(unit_id, lesson_id)\n\n def _get_label(self, entity, parent_ids):\n return self.ENTITY_TO_HUMAN_READABLE_NAME_DICT[entity](\n self, *parent_ids)\n\n def _get_course_label(self):\n # pylint: disable=protected-access\n return courses.Course.get_environ(self._get_course().app_context)[\n 'course']['title']\n\n def _get_unit_label(self, unit_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n return 'Unit %s' % unit.index\n\n def _get_assessment_label(self, unit_id):\n assessment = self._get_course().find_unit_by_id(unit_id)\n return assessment.title\n\n def _get_lesson_label(self, unit_id, lesson_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\n return lesson.index\n\n def _get_activity_label(self, unit_id, lesson_id, unused_activity_id):\n return str('L%s.%s' % (\n self._get_course().find_unit_by_id(unit_id).index,\n self._get_lesson_label(unit_id, lesson_id)))\n\n def _get_html_label(self, unit_id, lesson_id, unused_html_id):\n return self._get_activity_label(unit_id, lesson_id, unused_html_id)\n\n def _get_block_label(self, unit_id, lesson_id, unused_activity_id,\n block_id):\n return str('L%s.%s.%s' % (\n self._get_course().find_unit_by_id(unit_id).index,\n self._get_lesson_label(unit_id, lesson_id),\n block_id))\n\n def _get_component_label(self, unit_id, lesson_id, unused_html_id,\n component_id):\n return self._get_block_label(\n unit_id, lesson_id, unused_html_id, component_id)\n\n # Outlines the structure of the course. The key is the entity level, and\n # its value is a dictionary with following keys and its values:\n # 'children': list of tuples. Each tuple consists of string representation\n # of the child entity(ex: 'lesson') and a function to get the\n # children elements. If the entity does not have children, the\n # value will be an empty list.\n # 'id': instance_id of the entity. If the entity is represented by a class\n # with an id attribute(ex: units), string representation of the\n # attribute is stored here. If the entity is defined by a dictionary\n # (ex: components), then the value is the string 'None'.\n #\n COURSE_STRUCTURE_DICT = {\n 'course': {\n 'children': [('unit', _get_unit_ids_of_type_unit),\n ('assessment', _get_assessment_ids)],\n },\n 'unit': {\n 'children': [('lesson', _get_lesson_ids)],\n },\n 'assessment': {\n 'children': [],\n },\n 'lesson': {\n 'children': [('activity', _get_activity_ids),\n ('html', _get_html_ids)],\n },\n 'activity': {\n 'children': [('block', _get_block_ids)],\n },\n 'html': {\n 'children': [('component', _get_component_ids)],\n },\n 'block': {\n 'children': [],\n },\n 'component': {\n 'children': [],\n }\n }\n\n ENTITY_TO_HUMAN_READABLE_NAME_DICT = {\n 'course': _get_course_label,\n 'unit': _get_unit_label,\n 'assessment': _get_assessment_label,\n 'lesson': _get_lesson_label,\n 'activity': _get_activity_label,\n 'html': _get_html_label,\n 'block': _get_block_label,\n 'component': _get_component_label\n }\n"},"vector":{"kind":"list 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StudentPropertyEntity","from tools import verify","TRACKABLE_COMPONENTS = [\n 'question',\n 'question-group',\n]","class UnitLessonCompletionTracker(object):\n \"\"\"Tracks student completion for a unit/lesson-based linear course.\"\"\"\n\n PROPERTY_KEY = 'linear-course-completion'\n\n # Here are representative examples of the keys for the various entities\n # used in this class:\n # Unit 1: u.1"," \"\"\"Tracks student completion for a unit/lesson-based linear course.\"\"\""," PROPERTY_KEY = 'linear-course-completion'"," NOT_STARTED_STATE = 0"," IN_PROGRESS_STATE = 1"," COMPLETED_STATE = 2"," MULTIPLE_CHOICE = 'multiple choice'"," MULTIPLE_CHOICE_GROUP = 'multiple choice group'"," QUESTION_GROUP = 'question-group'"," QUESTION = 'question'"," EVENT_CODE_MAPPING = {\n 'course': 'r',\n 'course_forced': 'r',\n 'unit': 'u',\n 'unit_forced': 'u',\n 'lesson': 'l',\n 'activity': 'a',\n 'html': 'h',"," COMPOSITE_ENTITIES = [\n EVENT_CODE_MAPPING['course'],\n EVENT_CODE_MAPPING['unit'],\n EVENT_CODE_MAPPING['lesson'],\n EVENT_CODE_MAPPING['activity'],\n EVENT_CODE_MAPPING['html'],\n EVENT_CODE_MAPPING['custom_unit']\n ]"," POST_UPDATE_PROGRESS_HOOK = []"," def __init__(self, course):\n self._course = course"," self._course = course"," def _get_course(self):\n return self._course"," return self._course"," def get_activity_as_python(self, unit_id, lesson_id):\n \"\"\"Gets the corresponding activity as a Python object.\"\"\"\n root_name = 'activity'\n course = self._get_course()\n activity_text = course.app_context.fs.get(\n os.path.join(course.app_context.get_home(),\n course.get_activity_filename(unit_id, lesson_id)))\n content, noverify_text = verify.convert_javascript_to_python("," \"\"\"Gets the corresponding activity as a Python object.\"\"\""," root_name = 'activity'"," course = self._get_course()"," activity_text = course.app_context.fs.get(\n os.path.join(course.app_context.get_home(),\n course.get_activity_filename(unit_id, lesson_id)))"," content, noverify_text = verify.convert_javascript_to_python(\n activity_text, root_name)"," activity = verify.evaluate_python_expression_from_text(\n content, root_name, verify.Activity().scope, noverify_text)"," return activity"," def _get_course_key(self):\n return '%s.0' % (\n self.EVENT_CODE_MAPPING['course'],\n )"," return '%s.0' % (\n self.EVENT_CODE_MAPPING['course'],\n )"," def _get_unit_key(self, unit_id):\n return '%s.%s' % (self.EVENT_CODE_MAPPING['unit'], unit_id)"," return '%s.%s' % (self.EVENT_CODE_MAPPING['unit'], unit_id)"," def _get_custom_unit_key(self, unit_id):\n return '%s.%s' % (self.EVENT_CODE_MAPPING['custom_unit'], unit_id)"," return '%s.%s' % (self.EVENT_CODE_MAPPING['custom_unit'], unit_id)"," def _get_lesson_key(self, unit_id, lesson_id):\n return '%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id\n )"," return '%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id\n )"," def _get_activity_key(self, unit_id, lesson_id):\n return '%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['activity'], 0\n )"," return '%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['activity'], 0\n )"," def _get_html_key(self, unit_id, lesson_id):\n return '%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['html'], 0\n )"," return '%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['html'], 0\n )"," def _get_component_key(self, unit_id, lesson_id, component_id):\n return '%s.%s.%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['html'], 0,\n self.EVENT_CODE_MAPPING['component'], component_id\n )"," return '%s.%s.%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['html'], 0,\n self.EVENT_CODE_MAPPING['component'], component_id\n )"," def _get_block_key(self, unit_id, lesson_id, block_id):\n return '%s.%s.%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['activity'], 0,\n self.EVENT_CODE_MAPPING['block'], block_id\n )"," return '%s.%s.%s.%s.%s.%s.%s.%s' % (\n self.EVENT_CODE_MAPPING['unit'], unit_id,\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\n self.EVENT_CODE_MAPPING['activity'], 0,\n self.EVENT_CODE_MAPPING['block'], block_id\n )"," def _get_assessment_key(self, assessment_id):\n assessment_key = '%s.%s' % (\n self.EVENT_CODE_MAPPING['assessment'], assessment_id)\n\n # If this assessment is used as a \"lesson\" within a unit, prepend\n # the unit identifier.\n parent_unit = self._get_course().get_parent_unit(assessment_id)\n if parent_unit:"," assessment_key = '%s.%s' % (\n self.EVENT_CODE_MAPPING['assessment'], assessment_id)"," parent_unit = self._get_course().get_parent_unit(assessment_id)"," if parent_unit:\n assessment_key = '.'.join([self._get_unit_key(parent_unit.unit_id),\n assessment_key])"," assessment_key = '.'.join([self._get_unit_key(parent_unit.unit_id),\n assessment_key])"," return assessment_key"," def get_entity_type_from_key(self, progress_entity_key):\n return progress_entity_key.split('.')[-2]"," return progress_entity_key.split('.')[-2]"," def determine_if_composite_entity(self, progress_entity_key):\n return self.get_entity_type_from_key(\n progress_entity_key) in self.COMPOSITE_ENTITIES"," return self.get_entity_type_from_key(\n progress_entity_key) in self.COMPOSITE_ENTITIES"," def get_valid_component_ids(self, unit_id, lesson_id):\n \"\"\"Returns a list of cpt ids representing trackable components.\"\"\"\n components = []\n for cpt_name in TRACKABLE_COMPONENTS:\n all_cpts = self._get_course().get_components_with_name(\n unit_id, lesson_id, cpt_name)\n components += [\n cpt['instanceid'] for cpt in all_cpts if cpt['instanceid']]"," \"\"\"Returns a list of cpt ids representing trackable components.\"\"\""," components = []"," for cpt_name in TRACKABLE_COMPONENTS:\n all_cpts = self._get_course().get_components_with_name(\n unit_id, lesson_id, cpt_name)\n components += [\n cpt['instanceid'] for cpt in all_cpts if cpt['instanceid']]"," all_cpts = self._get_course().get_components_with_name(\n unit_id, lesson_id, cpt_name)"," return components"," def get_valid_block_ids(self, unit_id, lesson_id):\n \"\"\"Returns a list of block ids representing interactive activities.\"\"\"\n valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\n return [block[0] for block in valid_blocks_data]"," \"\"\"Returns a list of block ids representing interactive activities.\"\"\""," valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)"," return [block[0] for block in valid_blocks_data]"," def get_valid_blocks(self, unit_id, lesson_id):\n \"\"\"Returns a list of blocks representing interactive activities.\"\"\"\n valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\n return [block[1] for block in valid_blocks_data]"," \"\"\"Returns a list of blocks representing interactive activities.\"\"\""," valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)"," return [block[1] for block in valid_blocks_data]"," def _get_valid_blocks_data(self, unit_id, lesson_id):\n \"\"\"Returns a list of (b_id, block) representing trackable activities.\"\"\"\n valid_blocks = []\n\n # Check if activity exists before calling get_activity_as_python.\n unit = self._get_course().find_unit_by_id(unit_id)\n lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\n if unit and lesson and lesson.activity:"," \"\"\"Returns a list of (b_id, block) representing trackable activities.\"\"\""," valid_blocks = []"," unit = self._get_course().find_unit_by_id(unit_id)"," lesson = self._get_course().find_lesson_by_id(unit, lesson_id)"," if unit and lesson and lesson.activity:\n # Get the activity corresponding to this unit/lesson combination.\n activity = self.get_activity_as_python(unit_id, lesson_id)\n for block_id in range(len(activity['activity'])):\n block = activity['activity'][block_id]\n if isinstance(block, dict):\n valid_blocks.append((block_id, block))"," activity = self.get_activity_as_python(unit_id, lesson_id)"," for block_id in range(len(activity['activity'])):\n block = activity['activity'][block_id]\n if isinstance(block, dict):\n valid_blocks.append((block_id, block))"," block = activity['activity'][block_id]"," if isinstance(block, dict):\n valid_blocks.append((block_id, block))"," valid_blocks.append((block_id, block))"," return valid_blocks"," def get_id_to_questions_dict(self):\n \"\"\"Returns a dict that maps each question to a list of its answers.\n\n Returns:\n A dict that represents the questions in lessons. The keys of this\n dict are question ids, and the corresponding values are dicts, each\n containing the following five key-value pairs:\n - answers: a list of 0's with length corresponding to number of"," \"\"\"Returns a dict that maps each question to a list of its answers.\n\n Returns:\n A dict that represents the questions in lessons. The keys of this\n dict are question ids, and the corresponding values are dicts, each\n containing the following five key-value pairs:\n - answers: a list of 0's with length corresponding to number of\n choices a question has."," id_to_questions = {}"," for unit in self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT):\n unit_id = unit.unit_id\n for lesson in self._get_course().get_lessons(unit_id):\n lesson_id = lesson.lesson_id\n # Add mapping dicts for questions in old-style activities.\n if lesson.activity:\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\n for block_index, (block_id, block) in enumerate(blocks):"," unit_id = unit.unit_id"," for lesson in self._get_course().get_lessons(unit_id):\n lesson_id = lesson.lesson_id\n # Add mapping dicts for questions in old-style activities.\n if lesson.activity:\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\n for block_index, (block_id, block) in enumerate(blocks):\n if block['questionType'] == self.MULTIPLE_CHOICE:\n # Old style question."," lesson_id = lesson.lesson_id"," if lesson.activity:\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\n for block_index, (block_id, block) in enumerate(blocks):\n if block['questionType'] == self.MULTIPLE_CHOICE:\n # Old style question.\n id_to_questions.update(\n self._create_old_style_question_dict(\n block, block_id, block_index, unit, lesson))"," blocks = self._get_valid_blocks_data(unit_id, lesson_id)"," for block_index, (block_id, block) in enumerate(blocks):\n if block['questionType'] == self.MULTIPLE_CHOICE:\n # Old style question.\n id_to_questions.update(\n self._create_old_style_question_dict(\n block, block_id, block_index, unit, lesson))\n\n elif (block['questionType'] =="," if block['questionType'] == self.MULTIPLE_CHOICE:\n # Old style question.\n id_to_questions.update(\n self._create_old_style_question_dict(\n block, block_id, block_index, unit, lesson))\n\n elif (block['questionType'] ==\n self.MULTIPLE_CHOICE_GROUP):"," id_to_questions.update(\n self._create_old_style_question_dict(\n block, block_id, block_index, unit, lesson))"," elif (block['questionType'] ==\n self.MULTIPLE_CHOICE_GROUP):\n # Old style multiple choice group.\n for ind, q in enumerate(block['questionsList']):\n id_to_questions.update(\n self._create_old_style_question_dict(\n q, block_id, block_index, unit,\n lesson, index=ind))"," for ind, q in enumerate(block['questionsList']):\n id_to_questions.update(\n self._create_old_style_question_dict(\n q, block_id, block_index, unit,\n lesson, index=ind))"," id_to_questions.update(\n self._create_old_style_question_dict(\n q, block_id, block_index, unit,\n lesson, index=ind))"," if lesson.objectives:\n for cpt in self._get_course().get_question_components(\n unit_id, lesson_id):\n # CB v1.5 style questions.\n id_to_questions.update(\n self._create_v15_lesson_question_dict(\n cpt, unit, lesson))"," for cpt in self._get_course().get_question_components(\n unit_id, lesson_id):\n # CB v1.5 style questions.\n id_to_questions.update(\n self._create_v15_lesson_question_dict(\n cpt, unit, lesson))"," id_to_questions.update(\n self._create_v15_lesson_question_dict(\n cpt, unit, lesson))"," for cpt in self._get_course().get_question_group_components(\n unit_id, lesson_id):\n # CB v1.5 style question groups.\n id_to_questions.update(\n self._create_v15_lesson_question_group_dict(\n cpt, unit, lesson))"," id_to_questions.update(\n self._create_v15_lesson_question_group_dict(\n cpt, unit, lesson))"," return id_to_questions"," def get_id_to_assessments_dict(self):\n \"\"\"Returns a dict that maps each question to a list of its answers.\n\n Returns:\n A dict that represents the questions in assessments. The keys of\n this dict are question ids, and the corresponding values are dicts,\n each containing the following five key-value pairs:\n - answers: a list of 0's with length corresponding to number of"," \"\"\"Returns a dict that maps each question to a list of its answers.\n\n Returns:\n A dict that represents the questions in assessments. The keys of\n this dict are question ids, and the corresponding values are dicts,\n each containing the following five key-value pairs:\n - answers: a list of 0's with length corresponding to number of\n choices a question has."," id_to_assessments = {}"," for assessment in self._get_course().get_assessment_list():\n if not self._get_course().needs_human_grader(assessment):\n assessment_components = self._get_course(\n ).get_assessment_components(assessment.unit_id)\n # CB v1.5 style assessments.\n for cpt in assessment_components:\n if cpt['cpt_name'] == self.QUESTION_GROUP:\n id_to_assessments.update("," if not self._get_course().needs_human_grader(assessment):\n assessment_components = self._get_course(\n ).get_assessment_components(assessment.unit_id)\n # CB v1.5 style assessments.\n for cpt in assessment_components:\n if cpt['cpt_name'] == self.QUESTION_GROUP:\n id_to_assessments.update(\n self._create_v15_assessment_question_group_dict("," assessment_components = self._get_course(\n ).get_assessment_components(assessment.unit_id)"," for cpt in assessment_components:\n if cpt['cpt_name'] == self.QUESTION_GROUP:\n id_to_assessments.update(\n self._create_v15_assessment_question_group_dict(\n cpt, assessment))\n elif cpt['cpt_name'] == self.QUESTION:\n id_to_assessments.update(\n self._create_v15_assessment_question_dict("," if cpt['cpt_name'] == self.QUESTION_GROUP:\n id_to_assessments.update(\n self._create_v15_assessment_question_group_dict(\n cpt, assessment))\n elif cpt['cpt_name'] == self.QUESTION:\n id_to_assessments.update(\n self._create_v15_assessment_question_dict(\n cpt, assessment))"," id_to_assessments.update(\n self._create_v15_assessment_question_group_dict(\n cpt, assessment))"," elif cpt['cpt_name'] == self.QUESTION:\n id_to_assessments.update(\n self._create_v15_assessment_question_dict(\n cpt, assessment))"," id_to_assessments.update(\n self._create_v15_assessment_question_dict(\n cpt, assessment))"," try:\n content = self._get_course().get_assessment_content(\n assessment)\n id_to_assessments.update(\n self._create_old_style_assessment_dict(\n content['assessment'], assessment))\n except AttributeError:\n # Assessment file does not exist."," content = self._get_course().get_assessment_content(\n assessment)"," id_to_assessments.update(\n self._create_old_style_assessment_dict(\n content['assessment'], assessment))"," return id_to_assessments"," def _get_link_for_assessment(self, assessment_id):\n return 'assessment?name=%s' % (assessment_id)"," return 'assessment?name=%s' % (assessment_id)"," def _get_link_for_activity(self, unit_id, lesson_id):\n return 'activity?unit=%s&lesson=%s' % (unit_id, lesson_id)"," return 'activity?unit=%s&lesson=%s' % (unit_id, lesson_id)"," def _get_link_for_lesson(self, unit_id, lesson_id):\n return 'unit?unit=%s&lesson=%s' % (unit_id, lesson_id)"," return 'unit?unit=%s&lesson=%s' % (unit_id, lesson_id)"," def _create_v15_question_dict(self, q_id, label, link, num_choices):\n \"\"\"Returns a dict that represents CB v1.5 style question.\"\"\"\n return {\n q_id: {\n 'answer_counts': [0] * num_choices,\n 'label': label,\n 'location': link,\n 'score': 0,"," \"\"\"Returns a dict that represents CB v1.5 style question.\"\"\""," return {\n q_id: {\n 'answer_counts': [0] * num_choices,\n 'label': label,\n 'location': link,\n 'score': 0,\n 'num_attempts': 0\n }"," def _create_v15_lesson_question_dict(self, cpt, unit, lesson):\n try:\n question = QuestionDAO.load(cpt['quid'])\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\n label = 'Unit %s Lesson %s, Question %s' % (\n unit.index, lesson.index, question.description)"," try:\n question = QuestionDAO.load(cpt['quid'])\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\n label = 'Unit %s Lesson %s, Question %s' % (\n unit.index, lesson.index, question.description)\n link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)"," question = QuestionDAO.load(cpt['quid'])"," if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\n label = 'Unit %s Lesson %s, Question %s' % (\n unit.index, lesson.index, question.description)\n link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)\n num_choices = len(question.dict['choices'])\n return self._create_v15_question_dict("," q_id = 'u.%s.l.%s.c.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])"," label = 'Unit %s Lesson %s, Question %s' % (\n unit.index, lesson.index, question.description)"," link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)"," num_choices = len(question.dict['choices'])"," return self._create_v15_question_dict(\n q_id, label, link, num_choices)"," return {}"," logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)"," return {}"," def _create_v15_lesson_question_group_dict(self, cpt, unit, lesson):\n try:\n question_group = QuestionGroupDAO.load(cpt['qgid'])\n questions = {}\n for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s.i.%s' % ("," try:\n question_group = QuestionGroupDAO.load(cpt['qgid'])\n questions = {}\n for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)"," question_group = QuestionGroupDAO.load(cpt['qgid'])"," questions = {}"," for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\n label = ('Unit %s Lesson %s, Question Group %s Question %s'\n % (unit.index, lesson.index,\n question_group.description,"," question = QuestionDAO.load(quid)"," if question.type == question.MULTIPLE_CHOICE:\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\n label = ('Unit %s Lesson %s, Question Group %s Question %s'\n % (unit.index, lesson.index,\n question_group.description,\n question.description))\n link = self._get_link_for_lesson("," q_id = 'u.%s.l.%s.c.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)"," label = ('Unit %s Lesson %s, Question Group %s Question %s'\n % (unit.index, lesson.index,\n question_group.description,\n question.description))"," link = self._get_link_for_lesson(\n unit.unit_id, lesson.lesson_id)"," num_choices = len(question.dict['choices'])"," questions.update(self._create_v15_question_dict(\n q_id, label, link, num_choices))"," return questions"," logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)"," return {}"," def _create_v15_assessment_question_group_dict(self, cpt, assessment):\n try:\n question_group = QuestionGroupDAO.load(cpt['qgid'])\n questions = {}\n for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s.i.%s' % ("," try:\n question_group = QuestionGroupDAO.load(cpt['qgid'])\n questions = {}\n for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s.i.%s' % (\n assessment.unit_id, cpt['instanceid'], ind)"," question_group = QuestionGroupDAO.load(cpt['qgid'])"," questions = {}"," for ind, quid in enumerate(question_group.question_ids):\n question = QuestionDAO.load(quid)\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s.i.%s' % (\n assessment.unit_id, cpt['instanceid'], ind)\n label = '%s, Question Group %s Question %s' % (\n assessment.title, question_group.description,\n question.description)"," question = QuestionDAO.load(quid)"," if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s.i.%s' % (\n assessment.unit_id, cpt['instanceid'], ind)\n label = '%s, Question Group %s Question %s' % (\n assessment.title, question_group.description,\n question.description)\n link = self._get_link_for_assessment(assessment.unit_id)\n num_choices = len(question.dict['choices'])"," q_id = 's.%s.c.%s.i.%s' % (\n assessment.unit_id, cpt['instanceid'], ind)"," label = '%s, Question Group %s Question %s' % (\n assessment.title, question_group.description,\n question.description)"," link = self._get_link_for_assessment(assessment.unit_id)"," num_choices = len(question.dict['choices'])"," questions.update(\n self._create_v15_question_dict(\n q_id, label, link, num_choices))"," return questions"," logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)"," return {}"," def _create_v15_assessment_question_dict(self, cpt, assessment):\n try:\n question = QuestionDAO.load(cpt['quid'])\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\n label = '%s, Question %s' % (\n assessment.title, question.description)\n link = self._get_link_for_assessment(assessment.unit_id)"," try:\n question = QuestionDAO.load(cpt['quid'])\n if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\n label = '%s, Question %s' % (\n assessment.title, question.description)\n link = self._get_link_for_assessment(assessment.unit_id)\n num_choices = len(question.dict['choices'])"," question = QuestionDAO.load(cpt['quid'])"," if question.type == question.MULTIPLE_CHOICE:\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\n label = '%s, Question %s' % (\n assessment.title, question.description)\n link = self._get_link_for_assessment(assessment.unit_id)\n num_choices = len(question.dict['choices'])\n return self._create_v15_question_dict(\n q_id, label, link, num_choices)"," q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])"," label = '%s, Question %s' % (\n assessment.title, question.description)"," link = self._get_link_for_assessment(assessment.unit_id)"," num_choices = len(question.dict['choices'])"," return self._create_v15_question_dict(\n q_id, label, link, num_choices)"," return {}"," logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, cpt)"," return {}"," def _create_old_style_question_dict(self, block, block_id, block_index,\n unit, lesson, index=None):\n try:\n if index is not None:\n # Question is in a multiple choice group.\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, block_id, index)\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % ("," try:\n if index is not None:\n # Question is in a multiple choice group.\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, block_id, index)\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\n unit.index, lesson.index, block_index + 1, index + 1)\n else:"," if index is not None:\n # Question is in a multiple choice group.\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, block_id, index)\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\n unit.index, lesson.index, block_index + 1, index + 1)\n else:\n b_id = 'u.%s.l.%s.b.%s' % ("," b_id = 'u.%s.l.%s.b.%s.i.%s' % (\n unit.unit_id, lesson.lesson_id, block_id, index)"," label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\n unit.index, lesson.index, block_index + 1, index + 1)"," b_id = 'u.%s.l.%s.b.%s' % (\n unit.unit_id, lesson.lesson_id, block_id)"," label = 'Unit %s Lesson %s Activity, Item %s' % (\n unit.index, lesson.index, block_index + 1)"," return {\n b_id: {\n 'answer_counts': [0] * len(block['choices']),\n 'label': label,\n 'location': self._get_link_for_activity(\n unit.unit_id, lesson.lesson_id),\n 'score': 0,\n 'num_attempts': 0"," logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, block)"," return {}"," def _create_old_style_assessment_dict(self, content, assessment):\n try:\n questions = {}\n for ind, question in enumerate(content['questionsList']):\n if 'choices' in question:\n questions.update(\n {\n 's.%s.i.%s' % (assessment.unit_id, ind): {"," try:\n questions = {}\n for ind, question in enumerate(content['questionsList']):\n if 'choices' in question:\n questions.update(\n {\n 's.%s.i.%s' % (assessment.unit_id, ind): {\n 'answer_counts': [0] * len(question['choices']),"," questions = {}"," for ind, question in enumerate(content['questionsList']):\n if 'choices' in question:\n questions.update(\n {\n 's.%s.i.%s' % (assessment.unit_id, ind): {\n 'answer_counts': [0] * len(question['choices']),\n 'label': '%s, Question %s' % (\n assessment.title, ind + 1),"," if 'choices' in question:\n questions.update(\n {\n 's.%s.i.%s' % (assessment.unit_id, ind): {\n 'answer_counts': [0] * len(question['choices']),\n 'label': '%s, Question %s' % (\n assessment.title, ind + 1),\n 'location': self._get_link_for_assessment("," questions.update(\n {\n 's.%s.i.%s' % (assessment.unit_id, ind): {\n 'answer_counts': [0] * len(question['choices']),\n 'label': '%s, Question %s' % (\n assessment.title, ind + 1),\n 'location': self._get_link_for_assessment(\n assessment.unit_id),"," return questions"," logging.error(\n 'Failed to process the question data. '\n 'Error: %s, data: %s', e, content)"," return {}"," def _update_course(self, progress, student):\n event_key = self._get_course_key()\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return\n\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\n course = self._get_course()\n for unit in course.get_track_matching_student(student):"," event_key = self._get_course_key()"," if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)"," course = self._get_course()"," for unit in course.get_track_matching_student(student):\n if course.get_parent_unit(unit.unit_id):\n # Completion of an assessment-as-lesson rolls up to its\n # containing unit; it is not considered for overall course\n # completion (except insofar as assessment completion\n # contributes to the completion of its owning unit)\n pass\n else:"," if course.get_parent_unit(unit.unit_id):\n # Completion of an assessment-as-lesson rolls up to its\n # containing unit; it is not considered for overall course\n # completion (except insofar as assessment completion\n # contributes to the completion of its owning unit)\n pass\n else:\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:"," if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n if not self.is_assessment_completed(progress, unit.unit_id):\n return\n elif unit.type == verify.UNIT_TYPE_UNIT:\n unit_state = self.get_unit_status(progress, unit.unit_id)\n if unit_state != self.COMPLETED_STATE:\n return"," if not self.is_assessment_completed(progress, unit.unit_id):\n return"," return"," elif unit.type == verify.UNIT_TYPE_UNIT:\n unit_state = self.get_unit_status(progress, unit.unit_id)\n if unit_state != self.COMPLETED_STATE:\n return"," unit_state = self.get_unit_status(progress, unit.unit_id)"," if unit_state != self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_course_forced(self, progress):\n \"\"\"Force state of course to completed.\"\"\"\n\n event_key = self._get_course_key()\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," \"\"\"Force state of course to completed.\"\"\""," event_key = self._get_course_key()"," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_unit(self, progress, event_key):\n \"\"\"Updates a unit's progress if all its lessons have been completed.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 2\n unit_id = split_event_key[1]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return"," \"\"\"Updates a unit's progress if all its lessons have been completed.\"\"\""," split_event_key = event_key.split('.')"," unit_id = split_event_key[1]"," if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)"," lessons = self._get_course().get_lessons(unit_id)"," for lesson in lessons:\n if (self.get_lesson_status(\n progress,\n unit_id, lesson.lesson_id) != self.COMPLETED_STATE):\n return"," if (self.get_lesson_status(\n progress,\n unit_id, lesson.lesson_id) != self.COMPLETED_STATE):\n return"," return"," unit = self._get_course().find_unit_by_id(unit_id)"," pre_assessment_id = unit.pre_assessment"," if (pre_assessment_id and\n not self.get_assessment_status(progress, pre_assessment_id)):\n return"," return"," post_assessment_id = unit.post_assessment"," if (post_assessment_id and\n not self.get_assessment_status(progress, post_assessment_id)):\n return"," return"," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_unit_forced(self, progress, event_key):\n \"\"\"Force-mark a unit as completed, ignoring normal criteria.\"\"\"\n\n # Record that all lessons in this unit have been completed.\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," \"\"\"Force-mark a unit as completed, ignoring normal criteria.\"\"\""," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_lesson(self, progress, event_key):\n \"\"\"Updates a lesson's progress based on the progress of its children.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 4\n unit_id = split_event_key[1]\n lesson_id = split_event_key[3]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:"," \"\"\"Updates a lesson's progress based on the progress of its children.\"\"\""," split_event_key = event_key.split('.')"," unit_id = split_event_key[1]"," lesson_id = split_event_key[3]"," if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)"," lessons = self._get_course().get_lessons(unit_id)"," for lesson in lessons:\n if str(lesson.lesson_id) == lesson_id and lesson:\n # Is the activity completed?\n if (lesson.activity and self.get_activity_status(\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\n return\n\n # Are all components of the lesson completed?"," if str(lesson.lesson_id) == lesson_id and lesson:\n # Is the activity completed?\n if (lesson.activity and self.get_activity_status(\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\n return\n\n # Are all components of the lesson completed?\n if (self.get_html_status("," if (lesson.activity and self.get_activity_status(\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\n return"," return"," if (self.get_html_status(\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\n return"," return"," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_activity(self, progress, event_key):\n \"\"\"Updates activity's progress when all interactive blocks are done.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 6\n unit_id = split_event_key[1]\n lesson_id = split_event_key[3]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:"," \"\"\"Updates activity's progress when all interactive blocks are done.\"\"\""," split_event_key = event_key.split('.')"," unit_id = split_event_key[1]"," lesson_id = split_event_key[3]"," if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)"," valid_block_ids = self.get_valid_block_ids(unit_id, lesson_id)"," for block_id in valid_block_ids:\n if not self.is_block_completed(\n progress, unit_id, lesson_id, block_id):\n return"," if not self.is_block_completed(\n progress, unit_id, lesson_id, block_id):\n return"," return"," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_html(self, progress, event_key):\n \"\"\"Updates html's progress when all interactive blocks are done.\"\"\"\n split_event_key = event_key.split('.')\n assert len(split_event_key) == 6\n unit_id = split_event_key[1]\n lesson_id = split_event_key[3]\n\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:"," \"\"\"Updates html's progress when all interactive blocks are done.\"\"\""," split_event_key = event_key.split('.')"," unit_id = split_event_key[1]"," lesson_id = split_event_key[3]"," if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)"," cpt_ids = self.get_valid_component_ids(unit_id, lesson_id)"," for cpt_id in cpt_ids:\n if not self.is_component_completed(\n progress, unit_id, lesson_id, cpt_id):\n return"," if not self.is_component_completed(\n progress, unit_id, lesson_id, cpt_id):\n return"," return"," self._set_entity_value(progress, event_key, self.COMPLETED_STATE)"," def _update_custom_unit(self, student, event_key, state):\n \"\"\"Update custom unit.\"\"\"\n if student.is_transient:\n return\n progress = self.get_or_create_progress(student)\n current_state = self._get_entity_value(progress, event_key)\n if current_state == state or current_state == self.COMPLETED_STATE:\n return"," \"\"\"Update custom unit.\"\"\""," if student.is_transient:\n return"," return"," progress = self.get_or_create_progress(student)"," current_state = self._get_entity_value(progress, event_key)"," if current_state == state or current_state == self.COMPLETED_STATE:\n return"," return"," self._set_entity_value(progress, event_key, state)"," progress.updated_on = datetime.datetime.now()"," progress.put()"," UPDATER_MAPPING = {\n 'activity': _update_activity,\n 'course': _update_course,\n 'course_forced': _update_course_forced,\n 'html': _update_html,\n 'lesson': _update_lesson,\n 'unit': _update_unit,\n 'unit_forced': _update_unit_forced,"," DERIVED_EVENTS = {\n 'block': (\n {\n 'entity': 'activity',\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\n },\n ),\n 'activity': ("," def force_course_completed(self, student):\n self._put_event(\n student, 'course_forced', self._get_course_key())"," self._put_event(\n student, 'course_forced', self._get_course_key())"," def force_unit_completed(self, student, unit_id):\n \"\"\"Records that the given student has completed a unit.\n\n NOTE: This should not generally be used directly. The definition\n of completing a unit is generally taken to be completion of all\n parts of all components of a unit (assessments, lessons,\n activities in lessons, etc. Directly marking a unit as complete\n is provided only for manual marking where the student feels \"done\","," \"\"\"Records that the given student has completed a unit.\n\n NOTE: This should not generally be used directly. The definition\n of completing a unit is generally taken to be completion of all\n parts of all components of a unit (assessments, lessons,\n activities in lessons, etc. Directly marking a unit as complete\n is provided only for manual marking where the student feels \"done\",\n but has not taken a fully completionist approach to the material."," self._put_event(\n student, 'unit_forced', self._get_unit_key(unit_id))"," def put_activity_completed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has completed an activity.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n self._put_event(\n student, 'activity', self._get_activity_key(unit_id, lesson_id))"," \"\"\"Records that the given student has completed an activity.\"\"\""," if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return"," return"," self._put_event(\n student, 'activity', self._get_activity_key(unit_id, lesson_id))"," def put_html_completed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has completed a lesson page.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n self._put_event(\n student, 'html', self._get_html_key(unit_id, lesson_id))"," \"\"\"Records that the given student has completed a lesson page.\"\"\""," if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return"," return"," self._put_event(\n student, 'html', self._get_html_key(unit_id, lesson_id))"," def put_block_completed(self, student, unit_id, lesson_id, block_id):\n \"\"\"Records that the given student has completed an activity block.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n if block_id not in self.get_valid_block_ids(unit_id, lesson_id):\n return\n self._put_event(\n student,"," \"\"\"Records that the given student has completed an activity block.\"\"\""," if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return"," return"," if block_id not in self.get_valid_block_ids(unit_id, lesson_id):\n return"," return"," self._put_event(\n student,\n 'block',\n self._get_block_key(unit_id, lesson_id, block_id)\n )"," def put_component_completed(self, student, unit_id, lesson_id, cpt_id):\n \"\"\"Records completion of a component in a lesson body.\"\"\"\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return\n if cpt_id not in self.get_valid_component_ids(unit_id, lesson_id):\n return\n self._put_event(\n student,"," \"\"\"Records completion of a component in a lesson body.\"\"\""," if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\n return"," return"," if cpt_id not in self.get_valid_component_ids(unit_id, lesson_id):\n return"," return"," self._put_event(\n student,\n 'component',\n self._get_component_key(unit_id, lesson_id, cpt_id)\n )"," def put_assessment_completed(self, student, assessment_id):\n \"\"\"Records that the given student has completed the given assessment.\"\"\"\n if not self._get_course().is_valid_assessment_id(assessment_id):\n return\n self._put_event(\n student, 'assessment', self._get_assessment_key(assessment_id))"," \"\"\"Records that the given student has completed the given assessment.\"\"\""," if not self._get_course().is_valid_assessment_id(assessment_id):\n return"," return"," self._put_event(\n student, 'assessment', self._get_assessment_key(assessment_id))"," def put_custom_unit_completed(self, student, unit_id):\n \"\"\"Records that the student has completed the given custom_unit.\"\"\"\n if not self._get_course().is_valid_custom_unit(unit_id):\n return\n self._update_custom_unit(\n student, self._get_custom_unit_key(unit_id),\n self.COMPLETED_STATE)"," \"\"\"Records that the student has completed the given custom_unit.\"\"\""," if not self._get_course().is_valid_custom_unit(unit_id):\n return"," return"," self._update_custom_unit(\n student, self._get_custom_unit_key(unit_id),\n self.COMPLETED_STATE)"," def put_custom_unit_in_progress(self, student, unit_id):\n \"\"\"Records that the given student has started the given custom_unit.\"\"\"\n if not self._get_course().is_valid_custom_unit(unit_id):\n return\n self._update_custom_unit(\n student, self._get_custom_unit_key(unit_id),\n self.IN_PROGRESS_STATE)"," \"\"\"Records that the given student has started the given custom_unit.\"\"\""," if not self._get_course().is_valid_custom_unit(unit_id):\n return"," return"," self._update_custom_unit(\n student, self._get_custom_unit_key(unit_id),\n self.IN_PROGRESS_STATE)"," def put_activity_accessed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has accessed this activity.\"\"\"\n # This method currently exists because we need to mark activities\n # without interactive blocks as 'completed' when they are accessed.\n if not self.get_valid_block_ids(unit_id, lesson_id):\n self.put_activity_completed(student, unit_id, lesson_id)"," \"\"\"Records that the given student has accessed this activity.\"\"\""," if not self.get_valid_block_ids(unit_id, lesson_id):\n self.put_activity_completed(student, unit_id, lesson_id)"," self.put_activity_completed(student, unit_id, lesson_id)"," def put_html_accessed(self, student, unit_id, lesson_id):\n \"\"\"Records that the given student has accessed this lesson page.\"\"\"\n # This method currently exists because we need to mark lesson bodies\n # without interactive blocks as 'completed' when they are accessed.\n if not self.get_valid_component_ids(unit_id, lesson_id):\n self.put_html_completed(student, unit_id, lesson_id)"," \"\"\"Records that the given student has accessed this lesson page.\"\"\""," if not self.get_valid_component_ids(unit_id, lesson_id):\n self.put_html_completed(student, unit_id, lesson_id)"," self.put_html_completed(student, unit_id, lesson_id)"," def _put_event(self, student, event_entity, event_key):\n \"\"\"Starts a cascade of updates in response to an event taking place.\"\"\"\n if student.is_transient or event_entity not in self.EVENT_CODE_MAPPING:\n return\n\n progress = self.get_or_create_progress(student)\n\n self._update_event("," \"\"\"Starts a cascade of updates in response to an event taking place.\"\"\""," if student.is_transient or event_entity not in self.EVENT_CODE_MAPPING:\n return"," return"," progress = self.get_or_create_progress(student)"," self._update_event(\n student, progress, event_entity, event_key, direct_update=True)"," progress.updated_on = datetime.datetime.now()"," progress.put()"," def _update_event(self, student, progress, event_entity, event_key,\n direct_update=False):\n \"\"\"Updates statistics for the given event, and for derived events.\n\n Args:\n student: the student\n progress: the StudentProgressEntity for the student\n event_entity: the name of the affected entity (unit, lesson, etc.)"," \"\"\"Updates statistics for the given event, and for derived events.\n\n Args:\n student: the student\n progress: the StudentProgressEntity for the student\n event_entity: the name of the affected entity (unit, lesson, etc.)\n event_key: the key for the recorded event\n direct_update: True if this event is being updated explicitly; False"," if direct_update or event_entity not in self.UPDATER_MAPPING:\n if event_entity in self.UPDATER_MAPPING:\n # This is a derived event, so directly mark it as completed.\n self._set_entity_value(\n progress, event_key, self.COMPLETED_STATE)\n else:\n # This is not a derived event, so increment its counter by one.\n self._inc(progress, event_key)"," if event_entity in self.UPDATER_MAPPING:\n # This is a derived event, so directly mark it as completed.\n self._set_entity_value(\n progress, event_key, self.COMPLETED_STATE)\n else:\n # This is not a derived event, so increment its counter by one.\n self._inc(progress, event_key)"," self._set_entity_value(\n progress, event_key, self.COMPLETED_STATE)"," self._inc(progress, event_key)"," self.UPDATER_MAPPING[event_entity](self, progress, event_key)"," if event_entity in self.DERIVED_EVENTS:\n for derived_event in self.DERIVED_EVENTS[event_entity]:\n parent_event_key = derived_event['generate_parent_id'](\n event_key)\n if parent_event_key:\n # Event entities may contribute upwards to more than one\n # kind of container. Only pass the notification up to the\n # handler that our event_key indicates we actually have."," for derived_event in self.DERIVED_EVENTS[event_entity]:\n parent_event_key = derived_event['generate_parent_id'](\n event_key)\n if parent_event_key:\n # Event entities may contribute upwards to more than one\n # kind of container. Only pass the notification up to the\n # handler that our event_key indicates we actually have.\n leaf_type = self.get_entity_type_from_key(parent_event_key)"," parent_event_key = derived_event['generate_parent_id'](\n event_key)"," if parent_event_key:\n # Event entities may contribute upwards to more than one\n # kind of container. Only pass the notification up to the\n # handler that our event_key indicates we actually have.\n leaf_type = self.get_entity_type_from_key(parent_event_key)\n event_entity = derived_event['entity']\n if leaf_type == self.EVENT_CODE_MAPPING[event_entity]:\n self._update_event("," leaf_type = self.get_entity_type_from_key(parent_event_key)"," event_entity = derived_event['entity']"," if leaf_type == self.EVENT_CODE_MAPPING[event_entity]:\n self._update_event(\n student=student,\n progress=progress,\n event_entity=event_entity,\n event_key=parent_event_key)"," self._update_event(\n student=student,\n progress=progress,\n event_entity=event_entity,\n event_key=parent_event_key)"," self._update_course(progress, student)"," self._update_course(progress, student)"," utils.run_hooks(self.POST_UPDATE_PROGRESS_HOOK, self._get_course(),\n student, progress, event_entity, event_key)"," def get_course_status(self, progress):\n return self._get_entity_value(progress, self._get_course_key())"," return self._get_entity_value(progress, self._get_course_key())"," def get_unit_status(self, progress, unit_id):\n return self._get_entity_value(progress, self._get_unit_key(unit_id))"," return self._get_entity_value(progress, self._get_unit_key(unit_id))"," def get_custom_unit_status(self, progress, unit_id):\n return self._get_entity_value(\n progress, self._get_custom_unit_key(unit_id))"," return self._get_entity_value(\n progress, self._get_custom_unit_key(unit_id))"," def get_lesson_status(self, progress, unit_id, lesson_id):\n return self._get_entity_value(\n progress, self._get_lesson_key(unit_id, lesson_id))"," return self._get_entity_value(\n progress, self._get_lesson_key(unit_id, lesson_id))"," def get_activity_status(self, progress, unit_id, lesson_id):\n return self._get_entity_value(\n progress, self._get_activity_key(unit_id, lesson_id))"," return self._get_entity_value(\n progress, self._get_activity_key(unit_id, lesson_id))"," def get_html_status(self, progress, unit_id, lesson_id):\n return self._get_entity_value(\n progress, self._get_html_key(unit_id, lesson_id))"," return self._get_entity_value(\n progress, self._get_html_key(unit_id, lesson_id))"," def get_block_status(self, progress, unit_id, lesson_id, block_id):\n return self._get_entity_value(\n progress, self._get_block_key(unit_id, lesson_id, block_id))"," return self._get_entity_value(\n progress, self._get_block_key(unit_id, lesson_id, block_id))"," def get_assessment_status(self, progress, assessment_id):\n return self._get_entity_value(\n progress, self._get_assessment_key(assessment_id))"," return self._get_entity_value(\n progress, self._get_assessment_key(assessment_id))"," def is_block_completed(self, progress, unit_id, lesson_id, block_id):\n value = self._get_entity_value(\n progress, self._get_block_key(unit_id, lesson_id, block_id))\n return value is not None and value > 0"," value = self._get_entity_value(\n progress, self._get_block_key(unit_id, lesson_id, block_id))"," return value is not None and value > 0"," def is_component_completed(self, progress, unit_id, lesson_id, cpt_id):\n value = self._get_entity_value(\n progress, self._get_component_key(unit_id, lesson_id, cpt_id))\n return value is not None and value > 0"," value = self._get_entity_value(\n progress, self._get_component_key(unit_id, lesson_id, cpt_id))"," return value is not None and value > 0"," def is_assessment_completed(self, progress, assessment_id):\n value = self._get_entity_value(\n progress, self._get_assessment_key(assessment_id))\n return value is not None and value > 0"," value = self._get_entity_value(\n progress, self._get_assessment_key(assessment_id))"," return value is not None and value > 0"," def is_custom_unit_completed(self, progress, unit_id):\n value = self.get_custom_unit_status(progress, unit_id)\n return self.COMPLETED_STATE == value"," value = self.get_custom_unit_status(progress, unit_id)"," return self.COMPLETED_STATE == value"," def get_or_create_progress(cls, student):\n progress = StudentPropertyEntity.get(student, cls.PROPERTY_KEY)\n if not progress:\n progress = StudentPropertyEntity.create(\n student=student, property_name=cls.PROPERTY_KEY)\n progress.put()\n return progress"," progress = StudentPropertyEntity.get(student, cls.PROPERTY_KEY)"," if not progress:\n progress = StudentPropertyEntity.create(\n student=student, property_name=cls.PROPERTY_KEY)\n progress.put()"," progress = StudentPropertyEntity.create(\n student=student, property_name=cls.PROPERTY_KEY)"," progress.put()"," return progress"," def get_course_progress(self, student):\n \"\"\"Return [NOT_STARTED|IN_PROGRESS|COMPLETED]_STATE for course.\"\"\"\n progress = self.get_or_create_progress(student)\n return self.get_course_status(progress) or self.NOT_STARTED_STATE"," \"\"\"Return [NOT_STARTED|IN_PROGRESS|COMPLETED]_STATE for course.\"\"\""," progress = self.get_or_create_progress(student)"," return self.get_course_status(progress) or self.NOT_STARTED_STATE"," def get_unit_progress(self, student, progress=None):\n \"\"\"Returns a dict with the states of each unit.\"\"\"\n if student.is_transient:\n return {}\n\n units = self._get_course().get_units()\n if progress is None:\n progress = self.get_or_create_progress(student)"," \"\"\"Returns a dict with the states of each unit.\"\"\""," if student.is_transient:\n return {}"," return {}"," units = self._get_course().get_units()"," if progress is None:\n progress = self.get_or_create_progress(student)"," progress = self.get_or_create_progress(student)"," result = {}"," for unit in units:\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n result[unit.unit_id] = self.is_assessment_completed(\n progress, unit.unit_id)\n elif unit.type == verify.UNIT_TYPE_UNIT:\n value = self.get_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0\n elif unit.type == verify.UNIT_TYPE_CUSTOM:"," if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n result[unit.unit_id] = self.is_assessment_completed(\n progress, unit.unit_id)\n elif unit.type == verify.UNIT_TYPE_UNIT:\n value = self.get_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0\n elif unit.type == verify.UNIT_TYPE_CUSTOM:\n value = self.get_custom_unit_status(progress, unit.unit_id)"," result[unit.unit_id] = self.is_assessment_completed(\n progress, unit.unit_id)"," elif unit.type == verify.UNIT_TYPE_UNIT:\n value = self.get_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0\n elif unit.type == verify.UNIT_TYPE_CUSTOM:\n value = self.get_custom_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0"," value = self.get_unit_status(progress, unit.unit_id)"," result[unit.unit_id] = value or 0"," elif unit.type == verify.UNIT_TYPE_CUSTOM:\n value = self.get_custom_unit_status(progress, unit.unit_id)\n result[unit.unit_id] = value or 0"," value = self.get_custom_unit_status(progress, unit.unit_id)"," result[unit.unit_id] = value or 0"," return result"," def get_unit_percent_complete(self, student):\n \"\"\"Returns a dict with each unit's completion in [0.0, 1.0].\"\"\"\n if student.is_transient:\n return {}\n\n course = self._get_course()\n units = course.get_units()\n assessment_scores = {int(s['id']): s['score'] / 100.0"," \"\"\"Returns a dict with each unit's completion in [0.0, 1.0].\"\"\""," if student.is_transient:\n return {}"," return {}"," course = self._get_course()"," units = course.get_units()"," assessment_scores = {int(s['id']): s['score'] / 100.0\n for s in course.get_all_scores(student)}"," result = {}"," progress = self.get_or_create_progress(student)"," for unit in units:\n # Assessments are scored as themselves.\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n result[unit.unit_id] = assessment_scores[unit.unit_id]\n elif unit.type == verify.UNIT_TYPE_UNIT:\n if (unit.pre_assessment and\n assessment_scores[unit.pre_assessment] >= 1.0):\n # Use pre-assessment iff it exists and student scored 100%"," if unit.type == verify.UNIT_TYPE_ASSESSMENT:\n result[unit.unit_id] = assessment_scores[unit.unit_id]\n elif unit.type == verify.UNIT_TYPE_UNIT:\n if (unit.pre_assessment and\n assessment_scores[unit.pre_assessment] >= 1.0):\n # Use pre-assessment iff it exists and student scored 100%\n result[unit.unit_id] = 1.0\n else:"," result[unit.unit_id] = assessment_scores[unit.unit_id]"," elif unit.type == verify.UNIT_TYPE_UNIT:\n if (unit.pre_assessment and\n assessment_scores[unit.pre_assessment] >= 1.0):\n # Use pre-assessment iff it exists and student scored 100%\n result[unit.unit_id] = 1.0\n else:\n # Otherwise, count % completion on lessons within unit.\n num_completed = 0"," if (unit.pre_assessment and\n assessment_scores[unit.pre_assessment] >= 1.0):\n # Use pre-assessment iff it exists and student scored 100%\n result[unit.unit_id] = 1.0\n else:\n # Otherwise, count % completion on lessons within unit.\n num_completed = 0\n lesson_progress = self.get_lesson_progress("," result[unit.unit_id] = 1.0"," num_completed = 0"," lesson_progress = self.get_lesson_progress(\n student, unit.unit_id, progress=progress)"," if not lesson_progress:\n result[unit.unit_id] = 0.0\n else:\n for lesson in lesson_progress.values():\n if lesson['has_activity']:\n # Lessons that have activities must be\n # activity-complete as well as HTML complete.\n if (lesson['html'] == self.COMPLETED_STATE and"," result[unit.unit_id] = 0.0"," for lesson in lesson_progress.values():\n if lesson['has_activity']:\n # Lessons that have activities must be\n # activity-complete as well as HTML complete.\n if (lesson['html'] == self.COMPLETED_STATE and\n lesson['activity'] == self.COMPLETED_STATE):\n num_completed += 1\n else:"," if lesson['has_activity']:\n # Lessons that have activities must be\n # activity-complete as well as HTML complete.\n if (lesson['html'] == self.COMPLETED_STATE and\n lesson['activity'] == self.COMPLETED_STATE):\n num_completed += 1\n else:\n # Lessons without activities just need HTML"," if (lesson['html'] == self.COMPLETED_STATE and\n lesson['activity'] == self.COMPLETED_STATE):\n num_completed += 1"," if lesson['html'] == self.COMPLETED_STATE:\n num_completed += 1"," result[unit.unit_id] = round(\n num_completed / float(len(lesson_progress)), 3)"," return result"," def get_lesson_progress(self, student, unit_id, progress=None):\n \"\"\"Returns a dict saying which lessons in this unit are completed.\"\"\"\n if student.is_transient:\n return {}\n\n lessons = self._get_course().get_lessons(unit_id)\n if progress is None:\n progress = self.get_or_create_progress(student)"," \"\"\"Returns a dict saying which lessons in this unit are completed.\"\"\""," if student.is_transient:\n return {}"," return {}"," lessons = self._get_course().get_lessons(unit_id)"," if progress is None:\n progress = self.get_or_create_progress(student)"," progress = self.get_or_create_progress(student)"," result = {}"," for lesson in lessons:\n result[lesson.lesson_id] = {\n 'html': self.get_html_status(\n progress, unit_id, lesson.lesson_id) or 0,\n 'activity': self.get_activity_status(\n progress, unit_id, lesson.lesson_id) or 0,\n 'has_activity': lesson.has_activity,\n }"," result[lesson.lesson_id] = {\n 'html': self.get_html_status(\n progress, unit_id, lesson.lesson_id) or 0,\n 'activity': self.get_activity_status(\n progress, unit_id, lesson.lesson_id) or 0,\n 'has_activity': lesson.has_activity,\n }"," return result"," def get_component_progress(self, student, unit_id, lesson_id, cpt_id):\n \"\"\"Returns the progress status of the given component.\"\"\"\n if student.is_transient:\n return 0\n\n progress = self.get_or_create_progress(student)\n return self.is_component_completed(\n progress, unit_id, lesson_id, cpt_id) or 0"," \"\"\"Returns the progress status of the given component.\"\"\""," if student.is_transient:\n return 0"," return 0"," progress = self.get_or_create_progress(student)"," return self.is_component_completed(\n progress, unit_id, lesson_id, cpt_id) or 0"," def _get_entity_value(self, progress, event_key):\n if not progress.value:\n return None\n return transforms.loads(progress.value).get(event_key)"," if not progress.value:\n return None"," return None"," return transforms.loads(progress.value).get(event_key)"," def _set_entity_value(self, student_property, key, value):\n \"\"\"Sets the integer value of a student property.\n\n Note: this method does not commit the change. The calling method should\n call put() on the StudentPropertyEntity.\n\n Args:\n student_property: the StudentPropertyEntity"," \"\"\"Sets the integer value of a student property.\n\n Note: this method does not commit the change. The calling method should\n call put() on the StudentPropertyEntity.\n\n Args:\n student_property: the StudentPropertyEntity\n key: the student property whose value should be incremented"," try:\n progress_dict = transforms.loads(student_property.value)\n except (AttributeError, TypeError):\n progress_dict = {}"," progress_dict = transforms.loads(student_property.value)"," progress_dict = {}"," progress_dict[key] = value"," student_property.value = transforms.dumps(progress_dict)"," def _inc(self, student_property, key, value=1):\n \"\"\"Increments the integer value of a student property.\n\n Note: this method does not commit the change. The calling method should\n call put() on the StudentPropertyEntity.\n\n Args:\n student_property: the StudentPropertyEntity"," \"\"\"Increments the integer value of a student property.\n\n Note: this method does not commit the change. The calling method should\n call put() on the StudentPropertyEntity.\n\n Args:\n student_property: the StudentPropertyEntity\n key: the student property whose value should be incremented"," try:\n progress_dict = transforms.loads(student_property.value)\n except (AttributeError, TypeError):\n progress_dict = {}"," progress_dict = transforms.loads(student_property.value)"," progress_dict = {}"," if key not in progress_dict:\n progress_dict[key] = 0"," progress_dict[key] = 0"," student_property.value = transforms.dumps(progress_dict)"," def get_elements_from_key(cls, key):\n \"\"\"Decomposes the key into a dictionary with its values.\n\n Args:\n key: a string, the key of an element of the progress. For\n example, u.1.l.5.h.0\n\n Returns:"," \"\"\"Decomposes the key into a dictionary with its values.\n\n Args:\n key: a string, the key of an element of the progress. For\n example, u.1.l.5.h.0\n\n Returns:\n A dictionary mapping each element in the key to its value. For"," reversed_event_mapping = defaultdict(lambda: [])"," for full_type, value in cls.EVENT_CODE_MAPPING.iteritems():\n reversed_event_mapping[value].append(full_type)"," reversed_event_mapping[value].append(full_type)"," key_elements = key.split('.')"," result = {}"," for index in range(0, len(key_elements), 2):\n element_type = key_elements[index]\n element_value = key_elements[index + 1]\n full_element_types = reversed_event_mapping.get(element_type)\n for full_element_type in full_element_types:\n result[full_element_type] = element_value"," element_type = key_elements[index]"," element_value = key_elements[index + 1]"," full_element_types = reversed_event_mapping.get(element_type)"," for full_element_type in full_element_types:\n result[full_element_type] = element_value"," result[full_element_type] = element_value"," return result","class ProgressStats(object):\n \"\"\"Defines the course structure definition for course progress tracking.\"\"\"\n\n def __init__(self, course):\n self._course = course\n self._tracker = UnitLessonCompletionTracker(course)\n\n def compute_entity_dict(self, entity, parent_ids):"," \"\"\"Defines the course structure definition for course progress tracking.\"\"\""," def __init__(self, course):\n self._course = course\n self._tracker = UnitLessonCompletionTracker(course)"," self._course = course"," self._tracker = UnitLessonCompletionTracker(course)"," def compute_entity_dict(self, entity, parent_ids):\n \"\"\"Computes the course structure dictionary.\n\n Args:\n entity: str. Represents for which level of entity the dict is being\n computed. Valid entity levels are defined as keys to the dict\n defined below, COURSE_STRUCTURE_DICT.\n parent_ids: list of ids necessary to get children of the current"," \"\"\"Computes the course structure dictionary.\n\n Args:\n entity: str. Represents for which level of entity the dict is being\n computed. Valid entity levels are defined as keys to the dict\n defined below, COURSE_STRUCTURE_DICT.\n parent_ids: list of ids necessary to get children of the current\n entity."," entity_dict = {'label': self._get_label(entity, parent_ids)}"," for child_entity, get_children_ids in self.COURSE_STRUCTURE_DICT[\n entity]['children']:\n child_entity_dict = {}\n for child_id in get_children_ids(self, *parent_ids):\n new_parent_ids = parent_ids + [child_id]\n child_entity_dict[child_id] = self.compute_entity_dict(\n child_entity, new_parent_ids)\n entity_dict[UnitLessonCompletionTracker.EVENT_CODE_MAPPING["," child_entity_dict = {}"," for child_id in get_children_ids(self, *parent_ids):\n new_parent_ids = parent_ids + [child_id]\n child_entity_dict[child_id] = self.compute_entity_dict(\n child_entity, new_parent_ids)"," new_parent_ids = parent_ids + [child_id]"," child_entity_dict[child_id] = self.compute_entity_dict(\n child_entity, new_parent_ids)"," entity_dict[UnitLessonCompletionTracker.EVENT_CODE_MAPPING[\n child_entity]] = child_entity_dict"," return entity_dict"," def _get_course(self):\n return self._course"," return self._course"," def _get_unit_ids_of_type_unit(self):\n units = self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT)\n return [unit.unit_id for unit in units]"," units = self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT)"," return [unit.unit_id for unit in units]"," def _get_assessment_ids(self):\n assessments = self._get_course().get_assessment_list()\n return [a.unit_id for a in assessments]"," assessments = self._get_course().get_assessment_list()"," return [a.unit_id for a in assessments]"," def _get_lesson_ids(self, unit_id):\n lessons = self._get_course().get_lessons(unit_id)\n return [lesson.lesson_id for lesson in lessons]"," lessons = self._get_course().get_lessons(unit_id)"," return [lesson.lesson_id for lesson in lessons]"," def _get_activity_ids(self, unit_id, lesson_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n if self._get_course().find_lesson_by_id(unit, lesson_id).activity:\n return [0]\n return []"," unit = self._get_course().find_unit_by_id(unit_id)"," if self._get_course().find_lesson_by_id(unit, lesson_id).activity:\n return [0]"," return [0]"," return []"," def _get_html_ids(self, unused_unit_id, unused_lesson_id):\n return [0]"," return [0]"," def _get_block_ids(self, unit_id, lesson_id, unused_activity_id):\n return self._tracker.get_valid_block_ids(unit_id, lesson_id)"," return self._tracker.get_valid_block_ids(unit_id, lesson_id)"," def _get_component_ids(self, unit_id, lesson_id, unused_html_id):\n return self._tracker.get_valid_component_ids(unit_id, lesson_id)"," return self._tracker.get_valid_component_ids(unit_id, lesson_id)"," def _get_label(self, entity, parent_ids):\n return self.ENTITY_TO_HUMAN_READABLE_NAME_DICT[entity](\n self, *parent_ids)"," return self.ENTITY_TO_HUMAN_READABLE_NAME_DICT[entity](\n self, *parent_ids)"," def _get_course_label(self):\n # pylint: disable=protected-access\n return courses.Course.get_environ(self._get_course().app_context)[\n 'course']['title']"," return courses.Course.get_environ(self._get_course().app_context)[\n 'course']['title']"," def _get_unit_label(self, unit_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n return 'Unit %s' % unit.index"," unit = self._get_course().find_unit_by_id(unit_id)"," return 'Unit %s' % unit.index"," def _get_assessment_label(self, unit_id):\n assessment = self._get_course().find_unit_by_id(unit_id)\n return assessment.title"," assessment = self._get_course().find_unit_by_id(unit_id)"," return assessment.title"," def _get_lesson_label(self, unit_id, lesson_id):\n unit = self._get_course().find_unit_by_id(unit_id)\n lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\n return lesson.index"," unit = self._get_course().find_unit_by_id(unit_id)"," lesson = self._get_course().find_lesson_by_id(unit, lesson_id)"," return lesson.index"," def _get_activity_label(self, unit_id, lesson_id, unused_activity_id):\n return str('L%s.%s' % (\n self._get_course().find_unit_by_id(unit_id).index,\n self._get_lesson_label(unit_id, lesson_id)))"," return str('L%s.%s' % (\n self._get_course().find_unit_by_id(unit_id).index,\n self._get_lesson_label(unit_id, lesson_id)))"," def _get_html_label(self, unit_id, lesson_id, unused_html_id):\n return self._get_activity_label(unit_id, lesson_id, unused_html_id)"," return self._get_activity_label(unit_id, lesson_id, unused_html_id)"," def _get_block_label(self, unit_id, lesson_id, unused_activity_id,\n block_id):\n return str('L%s.%s.%s' % (\n self._get_course().find_unit_by_id(unit_id).index,\n self._get_lesson_label(unit_id, lesson_id),\n block_id))"," return str('L%s.%s.%s' % (\n self._get_course().find_unit_by_id(unit_id).index,\n self._get_lesson_label(unit_id, lesson_id),\n block_id))"," def _get_component_label(self, unit_id, lesson_id, unused_html_id,\n component_id):\n return self._get_block_label(\n unit_id, lesson_id, unused_html_id, component_id)"," return self._get_block_label(\n unit_id, lesson_id, unused_html_id, component_id)"," COURSE_STRUCTURE_DICT = {\n 'course': {\n 'children': [('unit', _get_unit_ids_of_type_unit),\n ('assessment', _get_assessment_ids)],\n },\n 'unit': {\n 'children': [('lesson', _get_lesson_ids)],\n },"," ENTITY_TO_HUMAN_READABLE_NAME_DICT = {\n 'course': _get_course_label,\n 'unit': _get_unit_label,\n 'assessment': _get_assessment_label,\n 'lesson': _get_lesson_label,\n 'activity': _get_activity_label,\n 'html': _get_html_label,\n 'block': _get_block_label,"],"string":"[\n \"\\\"\\\"\\\"Student progress trackers.\\\"\\\"\\\"\",\n \"__author__ = 'Sean Lip (sll@google.com)'\",\n \"import datetime\",\n \"import logging\",\n \"import os\",\n \"from collections import defaultdict\",\n \"import courses\",\n \"import transforms\",\n \"from common import utils\",\n \"from models import QuestionDAO\",\n \"from models import QuestionGroupDAO\",\n \"from models import StudentPropertyEntity\",\n \"from tools import verify\",\n \"TRACKABLE_COMPONENTS = [\\n 'question',\\n 'question-group',\\n]\",\n \"class UnitLessonCompletionTracker(object):\\n \\\"\\\"\\\"Tracks student completion for a unit/lesson-based linear course.\\\"\\\"\\\"\\n\\n PROPERTY_KEY = 'linear-course-completion'\\n\\n # Here are representative examples of the keys for the various entities\\n # used in this class:\\n # Unit 1: u.1\",\n \" \\\"\\\"\\\"Tracks student completion for a unit/lesson-based linear course.\\\"\\\"\\\"\",\n \" PROPERTY_KEY = 'linear-course-completion'\",\n \" NOT_STARTED_STATE = 0\",\n \" IN_PROGRESS_STATE = 1\",\n \" COMPLETED_STATE = 2\",\n \" MULTIPLE_CHOICE = 'multiple choice'\",\n \" MULTIPLE_CHOICE_GROUP = 'multiple choice group'\",\n \" QUESTION_GROUP = 'question-group'\",\n \" QUESTION = 'question'\",\n \" EVENT_CODE_MAPPING = {\\n 'course': 'r',\\n 'course_forced': 'r',\\n 'unit': 'u',\\n 'unit_forced': 'u',\\n 'lesson': 'l',\\n 'activity': 'a',\\n 'html': 'h',\",\n \" COMPOSITE_ENTITIES = [\\n EVENT_CODE_MAPPING['course'],\\n EVENT_CODE_MAPPING['unit'],\\n EVENT_CODE_MAPPING['lesson'],\\n EVENT_CODE_MAPPING['activity'],\\n EVENT_CODE_MAPPING['html'],\\n EVENT_CODE_MAPPING['custom_unit']\\n ]\",\n \" POST_UPDATE_PROGRESS_HOOK = []\",\n \" def __init__(self, course):\\n self._course = course\",\n \" self._course = course\",\n \" def _get_course(self):\\n return self._course\",\n \" return self._course\",\n \" def get_activity_as_python(self, unit_id, lesson_id):\\n \\\"\\\"\\\"Gets the corresponding activity as a Python object.\\\"\\\"\\\"\\n root_name = 'activity'\\n course = self._get_course()\\n activity_text = course.app_context.fs.get(\\n os.path.join(course.app_context.get_home(),\\n course.get_activity_filename(unit_id, lesson_id)))\\n content, noverify_text = verify.convert_javascript_to_python(\",\n \" \\\"\\\"\\\"Gets the corresponding activity as a Python object.\\\"\\\"\\\"\",\n \" root_name = 'activity'\",\n \" course = self._get_course()\",\n \" activity_text = course.app_context.fs.get(\\n os.path.join(course.app_context.get_home(),\\n course.get_activity_filename(unit_id, lesson_id)))\",\n \" content, noverify_text = verify.convert_javascript_to_python(\\n activity_text, root_name)\",\n \" activity = verify.evaluate_python_expression_from_text(\\n content, root_name, verify.Activity().scope, noverify_text)\",\n \" return activity\",\n \" def _get_course_key(self):\\n return '%s.0' % (\\n self.EVENT_CODE_MAPPING['course'],\\n )\",\n \" return '%s.0' % (\\n self.EVENT_CODE_MAPPING['course'],\\n )\",\n \" def _get_unit_key(self, unit_id):\\n return '%s.%s' % (self.EVENT_CODE_MAPPING['unit'], unit_id)\",\n \" return '%s.%s' % (self.EVENT_CODE_MAPPING['unit'], unit_id)\",\n \" def _get_custom_unit_key(self, unit_id):\\n return '%s.%s' % (self.EVENT_CODE_MAPPING['custom_unit'], unit_id)\",\n \" return '%s.%s' % (self.EVENT_CODE_MAPPING['custom_unit'], unit_id)\",\n \" def _get_lesson_key(self, unit_id, lesson_id):\\n return '%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id\\n )\",\n \" return '%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id\\n )\",\n \" def _get_activity_key(self, unit_id, lesson_id):\\n return '%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['activity'], 0\\n )\",\n \" return '%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['activity'], 0\\n )\",\n \" def _get_html_key(self, unit_id, lesson_id):\\n return '%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['html'], 0\\n )\",\n \" return '%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['html'], 0\\n )\",\n \" def _get_component_key(self, unit_id, lesson_id, component_id):\\n return '%s.%s.%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['html'], 0,\\n self.EVENT_CODE_MAPPING['component'], component_id\\n )\",\n \" return '%s.%s.%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['html'], 0,\\n self.EVENT_CODE_MAPPING['component'], component_id\\n )\",\n \" def _get_block_key(self, unit_id, lesson_id, block_id):\\n return '%s.%s.%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['activity'], 0,\\n self.EVENT_CODE_MAPPING['block'], block_id\\n )\",\n \" return '%s.%s.%s.%s.%s.%s.%s.%s' % (\\n self.EVENT_CODE_MAPPING['unit'], unit_id,\\n self.EVENT_CODE_MAPPING['lesson'], lesson_id,\\n self.EVENT_CODE_MAPPING['activity'], 0,\\n self.EVENT_CODE_MAPPING['block'], block_id\\n )\",\n \" def _get_assessment_key(self, assessment_id):\\n assessment_key = '%s.%s' % (\\n self.EVENT_CODE_MAPPING['assessment'], assessment_id)\\n\\n # If this assessment is used as a \\\"lesson\\\" within a unit, prepend\\n # the unit identifier.\\n parent_unit = self._get_course().get_parent_unit(assessment_id)\\n if parent_unit:\",\n \" assessment_key = '%s.%s' % (\\n self.EVENT_CODE_MAPPING['assessment'], assessment_id)\",\n \" parent_unit = self._get_course().get_parent_unit(assessment_id)\",\n \" if parent_unit:\\n assessment_key = '.'.join([self._get_unit_key(parent_unit.unit_id),\\n assessment_key])\",\n \" assessment_key = '.'.join([self._get_unit_key(parent_unit.unit_id),\\n assessment_key])\",\n \" return assessment_key\",\n \" def get_entity_type_from_key(self, progress_entity_key):\\n return progress_entity_key.split('.')[-2]\",\n \" return progress_entity_key.split('.')[-2]\",\n \" def determine_if_composite_entity(self, progress_entity_key):\\n return self.get_entity_type_from_key(\\n progress_entity_key) in self.COMPOSITE_ENTITIES\",\n \" return self.get_entity_type_from_key(\\n progress_entity_key) in self.COMPOSITE_ENTITIES\",\n \" def get_valid_component_ids(self, unit_id, lesson_id):\\n \\\"\\\"\\\"Returns a list of cpt ids representing trackable components.\\\"\\\"\\\"\\n components = []\\n for cpt_name in TRACKABLE_COMPONENTS:\\n all_cpts = self._get_course().get_components_with_name(\\n unit_id, lesson_id, cpt_name)\\n components += [\\n cpt['instanceid'] for cpt in all_cpts if cpt['instanceid']]\",\n \" \\\"\\\"\\\"Returns a list of cpt ids representing trackable components.\\\"\\\"\\\"\",\n \" components = []\",\n \" for cpt_name in TRACKABLE_COMPONENTS:\\n all_cpts = self._get_course().get_components_with_name(\\n unit_id, lesson_id, cpt_name)\\n components += [\\n cpt['instanceid'] for cpt in all_cpts if cpt['instanceid']]\",\n \" all_cpts = self._get_course().get_components_with_name(\\n unit_id, lesson_id, cpt_name)\",\n \" return components\",\n \" def get_valid_block_ids(self, unit_id, lesson_id):\\n \\\"\\\"\\\"Returns a list of block ids representing interactive activities.\\\"\\\"\\\"\\n valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\\n return [block[0] for block in valid_blocks_data]\",\n \" \\\"\\\"\\\"Returns a list of block ids representing interactive activities.\\\"\\\"\\\"\",\n \" valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\",\n \" return [block[0] for block in valid_blocks_data]\",\n \" def get_valid_blocks(self, unit_id, lesson_id):\\n \\\"\\\"\\\"Returns a list of blocks representing interactive activities.\\\"\\\"\\\"\\n valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\\n return [block[1] for block in valid_blocks_data]\",\n \" \\\"\\\"\\\"Returns a list of blocks representing interactive activities.\\\"\\\"\\\"\",\n \" valid_blocks_data = self._get_valid_blocks_data(unit_id, lesson_id)\",\n \" return [block[1] for block in valid_blocks_data]\",\n \" def _get_valid_blocks_data(self, unit_id, lesson_id):\\n \\\"\\\"\\\"Returns a list of (b_id, block) representing trackable activities.\\\"\\\"\\\"\\n valid_blocks = []\\n\\n # Check if activity exists before calling get_activity_as_python.\\n unit = self._get_course().find_unit_by_id(unit_id)\\n lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\\n if unit and lesson and lesson.activity:\",\n \" \\\"\\\"\\\"Returns a list of (b_id, block) representing trackable activities.\\\"\\\"\\\"\",\n \" valid_blocks = []\",\n \" unit = self._get_course().find_unit_by_id(unit_id)\",\n \" lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\",\n \" if unit and lesson and lesson.activity:\\n # Get the activity corresponding to this unit/lesson combination.\\n activity = self.get_activity_as_python(unit_id, lesson_id)\\n for block_id in range(len(activity['activity'])):\\n block = activity['activity'][block_id]\\n if isinstance(block, dict):\\n valid_blocks.append((block_id, block))\",\n \" activity = self.get_activity_as_python(unit_id, lesson_id)\",\n \" for block_id in range(len(activity['activity'])):\\n block = activity['activity'][block_id]\\n if isinstance(block, dict):\\n valid_blocks.append((block_id, block))\",\n \" block = activity['activity'][block_id]\",\n \" if isinstance(block, dict):\\n valid_blocks.append((block_id, block))\",\n \" valid_blocks.append((block_id, block))\",\n \" return valid_blocks\",\n \" def get_id_to_questions_dict(self):\\n \\\"\\\"\\\"Returns a dict that maps each question to a list of its answers.\\n\\n Returns:\\n A dict that represents the questions in lessons. The keys of this\\n dict are question ids, and the corresponding values are dicts, each\\n containing the following five key-value pairs:\\n - answers: a list of 0's with length corresponding to number of\",\n \" \\\"\\\"\\\"Returns a dict that maps each question to a list of its answers.\\n\\n Returns:\\n A dict that represents the questions in lessons. The keys of this\\n dict are question ids, and the corresponding values are dicts, each\\n containing the following five key-value pairs:\\n - answers: a list of 0's with length corresponding to number of\\n choices a question has.\",\n \" id_to_questions = {}\",\n \" for unit in self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT):\\n unit_id = unit.unit_id\\n for lesson in self._get_course().get_lessons(unit_id):\\n lesson_id = lesson.lesson_id\\n # Add mapping dicts for questions in old-style activities.\\n if lesson.activity:\\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\\n for block_index, (block_id, block) in enumerate(blocks):\",\n \" unit_id = unit.unit_id\",\n \" for lesson in self._get_course().get_lessons(unit_id):\\n lesson_id = lesson.lesson_id\\n # Add mapping dicts for questions in old-style activities.\\n if lesson.activity:\\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\\n for block_index, (block_id, block) in enumerate(blocks):\\n if block['questionType'] == self.MULTIPLE_CHOICE:\\n # Old style question.\",\n \" lesson_id = lesson.lesson_id\",\n \" if lesson.activity:\\n blocks = self._get_valid_blocks_data(unit_id, lesson_id)\\n for block_index, (block_id, block) in enumerate(blocks):\\n if block['questionType'] == self.MULTIPLE_CHOICE:\\n # Old style question.\\n id_to_questions.update(\\n self._create_old_style_question_dict(\\n block, block_id, block_index, unit, lesson))\",\n \" blocks = self._get_valid_blocks_data(unit_id, lesson_id)\",\n \" for block_index, (block_id, block) in enumerate(blocks):\\n if block['questionType'] == self.MULTIPLE_CHOICE:\\n # Old style question.\\n id_to_questions.update(\\n self._create_old_style_question_dict(\\n block, block_id, block_index, unit, lesson))\\n\\n elif (block['questionType'] ==\",\n \" if block['questionType'] == self.MULTIPLE_CHOICE:\\n # Old style question.\\n id_to_questions.update(\\n self._create_old_style_question_dict(\\n block, block_id, block_index, unit, lesson))\\n\\n elif (block['questionType'] ==\\n self.MULTIPLE_CHOICE_GROUP):\",\n \" id_to_questions.update(\\n self._create_old_style_question_dict(\\n block, block_id, block_index, unit, lesson))\",\n \" elif (block['questionType'] ==\\n self.MULTIPLE_CHOICE_GROUP):\\n # Old style multiple choice group.\\n for ind, q in enumerate(block['questionsList']):\\n id_to_questions.update(\\n self._create_old_style_question_dict(\\n q, block_id, block_index, unit,\\n lesson, index=ind))\",\n \" for ind, q in enumerate(block['questionsList']):\\n id_to_questions.update(\\n self._create_old_style_question_dict(\\n q, block_id, block_index, unit,\\n lesson, index=ind))\",\n \" id_to_questions.update(\\n self._create_old_style_question_dict(\\n q, block_id, block_index, unit,\\n lesson, index=ind))\",\n \" if lesson.objectives:\\n for cpt in self._get_course().get_question_components(\\n unit_id, lesson_id):\\n # CB v1.5 style questions.\\n id_to_questions.update(\\n self._create_v15_lesson_question_dict(\\n cpt, unit, lesson))\",\n \" for cpt in self._get_course().get_question_components(\\n unit_id, lesson_id):\\n # CB v1.5 style questions.\\n id_to_questions.update(\\n self._create_v15_lesson_question_dict(\\n cpt, unit, lesson))\",\n \" id_to_questions.update(\\n self._create_v15_lesson_question_dict(\\n cpt, unit, lesson))\",\n \" for cpt in self._get_course().get_question_group_components(\\n unit_id, lesson_id):\\n # CB v1.5 style question groups.\\n id_to_questions.update(\\n self._create_v15_lesson_question_group_dict(\\n cpt, unit, lesson))\",\n \" id_to_questions.update(\\n self._create_v15_lesson_question_group_dict(\\n cpt, unit, lesson))\",\n \" return id_to_questions\",\n \" def get_id_to_assessments_dict(self):\\n \\\"\\\"\\\"Returns a dict that maps each question to a list of its answers.\\n\\n Returns:\\n A dict that represents the questions in assessments. The keys of\\n this dict are question ids, and the corresponding values are dicts,\\n each containing the following five key-value pairs:\\n - answers: a list of 0's with length corresponding to number of\",\n \" \\\"\\\"\\\"Returns a dict that maps each question to a list of its answers.\\n\\n Returns:\\n A dict that represents the questions in assessments. The keys of\\n this dict are question ids, and the corresponding values are dicts,\\n each containing the following five key-value pairs:\\n - answers: a list of 0's with length corresponding to number of\\n choices a question has.\",\n \" id_to_assessments = {}\",\n \" for assessment in self._get_course().get_assessment_list():\\n if not self._get_course().needs_human_grader(assessment):\\n assessment_components = self._get_course(\\n ).get_assessment_components(assessment.unit_id)\\n # CB v1.5 style assessments.\\n for cpt in assessment_components:\\n if cpt['cpt_name'] == self.QUESTION_GROUP:\\n id_to_assessments.update(\",\n \" if not self._get_course().needs_human_grader(assessment):\\n assessment_components = self._get_course(\\n ).get_assessment_components(assessment.unit_id)\\n # CB v1.5 style assessments.\\n for cpt in assessment_components:\\n if cpt['cpt_name'] == self.QUESTION_GROUP:\\n id_to_assessments.update(\\n self._create_v15_assessment_question_group_dict(\",\n \" assessment_components = self._get_course(\\n ).get_assessment_components(assessment.unit_id)\",\n \" for cpt in assessment_components:\\n if cpt['cpt_name'] == self.QUESTION_GROUP:\\n id_to_assessments.update(\\n self._create_v15_assessment_question_group_dict(\\n cpt, assessment))\\n elif cpt['cpt_name'] == self.QUESTION:\\n id_to_assessments.update(\\n self._create_v15_assessment_question_dict(\",\n \" if cpt['cpt_name'] == self.QUESTION_GROUP:\\n id_to_assessments.update(\\n self._create_v15_assessment_question_group_dict(\\n cpt, assessment))\\n elif cpt['cpt_name'] == self.QUESTION:\\n id_to_assessments.update(\\n self._create_v15_assessment_question_dict(\\n cpt, assessment))\",\n \" id_to_assessments.update(\\n self._create_v15_assessment_question_group_dict(\\n cpt, assessment))\",\n \" elif cpt['cpt_name'] == self.QUESTION:\\n id_to_assessments.update(\\n self._create_v15_assessment_question_dict(\\n cpt, assessment))\",\n \" id_to_assessments.update(\\n self._create_v15_assessment_question_dict(\\n cpt, assessment))\",\n \" try:\\n content = self._get_course().get_assessment_content(\\n assessment)\\n id_to_assessments.update(\\n self._create_old_style_assessment_dict(\\n content['assessment'], assessment))\\n except AttributeError:\\n # Assessment file does not exist.\",\n \" content = self._get_course().get_assessment_content(\\n assessment)\",\n \" id_to_assessments.update(\\n self._create_old_style_assessment_dict(\\n content['assessment'], assessment))\",\n \" return id_to_assessments\",\n \" def _get_link_for_assessment(self, assessment_id):\\n return 'assessment?name=%s' % (assessment_id)\",\n \" return 'assessment?name=%s' % (assessment_id)\",\n \" def _get_link_for_activity(self, unit_id, lesson_id):\\n return 'activity?unit=%s&lesson=%s' % (unit_id, lesson_id)\",\n \" return 'activity?unit=%s&lesson=%s' % (unit_id, lesson_id)\",\n \" def _get_link_for_lesson(self, unit_id, lesson_id):\\n return 'unit?unit=%s&lesson=%s' % (unit_id, lesson_id)\",\n \" return 'unit?unit=%s&lesson=%s' % (unit_id, lesson_id)\",\n \" def _create_v15_question_dict(self, q_id, label, link, num_choices):\\n \\\"\\\"\\\"Returns a dict that represents CB v1.5 style question.\\\"\\\"\\\"\\n return {\\n q_id: {\\n 'answer_counts': [0] * num_choices,\\n 'label': label,\\n 'location': link,\\n 'score': 0,\",\n \" \\\"\\\"\\\"Returns a dict that represents CB v1.5 style question.\\\"\\\"\\\"\",\n \" return {\\n q_id: {\\n 'answer_counts': [0] * num_choices,\\n 'label': label,\\n 'location': link,\\n 'score': 0,\\n 'num_attempts': 0\\n }\",\n \" def _create_v15_lesson_question_dict(self, cpt, unit, lesson):\\n try:\\n question = QuestionDAO.load(cpt['quid'])\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\\n label = 'Unit %s Lesson %s, Question %s' % (\\n unit.index, lesson.index, question.description)\",\n \" try:\\n question = QuestionDAO.load(cpt['quid'])\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\\n label = 'Unit %s Lesson %s, Question %s' % (\\n unit.index, lesson.index, question.description)\\n link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)\",\n \" question = QuestionDAO.load(cpt['quid'])\",\n \" if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\\n label = 'Unit %s Lesson %s, Question %s' % (\\n unit.index, lesson.index, question.description)\\n link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)\\n num_choices = len(question.dict['choices'])\\n return self._create_v15_question_dict(\",\n \" q_id = 'u.%s.l.%s.c.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'])\",\n \" label = 'Unit %s Lesson %s, Question %s' % (\\n unit.index, lesson.index, question.description)\",\n \" link = self._get_link_for_lesson(unit.unit_id, lesson.lesson_id)\",\n \" num_choices = len(question.dict['choices'])\",\n \" return self._create_v15_question_dict(\\n q_id, label, link, num_choices)\",\n \" return {}\",\n \" logging.error(\\n 'Failed to process the question data. '\\n 'Error: %s, data: %s', e, cpt)\",\n \" return {}\",\n \" def _create_v15_lesson_question_group_dict(self, cpt, unit, lesson):\\n try:\\n question_group = QuestionGroupDAO.load(cpt['qgid'])\\n questions = {}\\n for ind, quid in enumerate(question_group.question_ids):\\n question = QuestionDAO.load(quid)\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\",\n \" try:\\n question_group = QuestionGroupDAO.load(cpt['qgid'])\\n questions = {}\\n for ind, quid in enumerate(question_group.question_ids):\\n question = QuestionDAO.load(quid)\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\",\n \" question_group = QuestionGroupDAO.load(cpt['qgid'])\",\n \" questions = {}\",\n \" for ind, quid in enumerate(question_group.question_ids):\\n question = QuestionDAO.load(quid)\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\\n label = ('Unit %s Lesson %s, Question Group %s Question %s'\\n % (unit.index, lesson.index,\\n question_group.description,\",\n \" question = QuestionDAO.load(quid)\",\n \" if question.type == question.MULTIPLE_CHOICE:\\n q_id = 'u.%s.l.%s.c.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\\n label = ('Unit %s Lesson %s, Question Group %s Question %s'\\n % (unit.index, lesson.index,\\n question_group.description,\\n question.description))\\n link = self._get_link_for_lesson(\",\n \" q_id = 'u.%s.l.%s.c.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, cpt['instanceid'], ind)\",\n \" label = ('Unit %s Lesson %s, Question Group %s Question %s'\\n % (unit.index, lesson.index,\\n question_group.description,\\n question.description))\",\n \" link = self._get_link_for_lesson(\\n unit.unit_id, lesson.lesson_id)\",\n \" num_choices = len(question.dict['choices'])\",\n \" questions.update(self._create_v15_question_dict(\\n q_id, label, link, num_choices))\",\n \" return questions\",\n \" logging.error(\\n 'Failed to process the question data. '\\n 'Error: %s, data: %s', e, cpt)\",\n \" return {}\",\n \" def _create_v15_assessment_question_group_dict(self, cpt, assessment):\\n try:\\n question_group = QuestionGroupDAO.load(cpt['qgid'])\\n questions = {}\\n for ind, quid in enumerate(question_group.question_ids):\\n question = QuestionDAO.load(quid)\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s.i.%s' % (\",\n \" try:\\n question_group = QuestionGroupDAO.load(cpt['qgid'])\\n questions = {}\\n for ind, quid in enumerate(question_group.question_ids):\\n question = QuestionDAO.load(quid)\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s.i.%s' % (\\n assessment.unit_id, cpt['instanceid'], ind)\",\n \" question_group = QuestionGroupDAO.load(cpt['qgid'])\",\n \" questions = {}\",\n \" for ind, quid in enumerate(question_group.question_ids):\\n question = QuestionDAO.load(quid)\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s.i.%s' % (\\n assessment.unit_id, cpt['instanceid'], ind)\\n label = '%s, Question Group %s Question %s' % (\\n assessment.title, question_group.description,\\n question.description)\",\n \" question = QuestionDAO.load(quid)\",\n \" if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s.i.%s' % (\\n assessment.unit_id, cpt['instanceid'], ind)\\n label = '%s, Question Group %s Question %s' % (\\n assessment.title, question_group.description,\\n question.description)\\n link = self._get_link_for_assessment(assessment.unit_id)\\n num_choices = len(question.dict['choices'])\",\n \" q_id = 's.%s.c.%s.i.%s' % (\\n assessment.unit_id, cpt['instanceid'], ind)\",\n \" label = '%s, Question Group %s Question %s' % (\\n assessment.title, question_group.description,\\n question.description)\",\n \" link = self._get_link_for_assessment(assessment.unit_id)\",\n \" num_choices = len(question.dict['choices'])\",\n \" questions.update(\\n self._create_v15_question_dict(\\n q_id, label, link, num_choices))\",\n \" return questions\",\n \" logging.error(\\n 'Failed to process the question data. '\\n 'Error: %s, data: %s', e, cpt)\",\n \" return {}\",\n \" def _create_v15_assessment_question_dict(self, cpt, assessment):\\n try:\\n question = QuestionDAO.load(cpt['quid'])\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\\n label = '%s, Question %s' % (\\n assessment.title, question.description)\\n link = self._get_link_for_assessment(assessment.unit_id)\",\n \" try:\\n question = QuestionDAO.load(cpt['quid'])\\n if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\\n label = '%s, Question %s' % (\\n assessment.title, question.description)\\n link = self._get_link_for_assessment(assessment.unit_id)\\n num_choices = len(question.dict['choices'])\",\n \" question = QuestionDAO.load(cpt['quid'])\",\n \" if question.type == question.MULTIPLE_CHOICE:\\n q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\\n label = '%s, Question %s' % (\\n assessment.title, question.description)\\n link = self._get_link_for_assessment(assessment.unit_id)\\n num_choices = len(question.dict['choices'])\\n return self._create_v15_question_dict(\\n q_id, label, link, num_choices)\",\n \" q_id = 's.%s.c.%s' % (assessment.unit_id, cpt['instanceid'])\",\n \" label = '%s, Question %s' % (\\n assessment.title, question.description)\",\n \" link = self._get_link_for_assessment(assessment.unit_id)\",\n \" num_choices = len(question.dict['choices'])\",\n \" return self._create_v15_question_dict(\\n q_id, label, link, num_choices)\",\n \" return {}\",\n \" logging.error(\\n 'Failed to process the question data. '\\n 'Error: %s, data: %s', e, cpt)\",\n \" return {}\",\n \" def _create_old_style_question_dict(self, block, block_id, block_index,\\n unit, lesson, index=None):\\n try:\\n if index is not None:\\n # Question is in a multiple choice group.\\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, block_id, index)\\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\",\n \" try:\\n if index is not None:\\n # Question is in a multiple choice group.\\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, block_id, index)\\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\\n unit.index, lesson.index, block_index + 1, index + 1)\\n else:\",\n \" if index is not None:\\n # Question is in a multiple choice group.\\n b_id = 'u.%s.l.%s.b.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, block_id, index)\\n label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\\n unit.index, lesson.index, block_index + 1, index + 1)\\n else:\\n b_id = 'u.%s.l.%s.b.%s' % (\",\n \" b_id = 'u.%s.l.%s.b.%s.i.%s' % (\\n unit.unit_id, lesson.lesson_id, block_id, index)\",\n \" label = 'Unit %s Lesson %s Activity, Item %s Part %s' % (\\n unit.index, lesson.index, block_index + 1, index + 1)\",\n \" b_id = 'u.%s.l.%s.b.%s' % (\\n unit.unit_id, lesson.lesson_id, block_id)\",\n \" label = 'Unit %s Lesson %s Activity, Item %s' % (\\n unit.index, lesson.index, block_index + 1)\",\n \" return {\\n b_id: {\\n 'answer_counts': [0] * len(block['choices']),\\n 'label': label,\\n 'location': self._get_link_for_activity(\\n unit.unit_id, lesson.lesson_id),\\n 'score': 0,\\n 'num_attempts': 0\",\n \" logging.error(\\n 'Failed to process the question data. '\\n 'Error: %s, data: %s', e, block)\",\n \" return {}\",\n \" def _create_old_style_assessment_dict(self, content, assessment):\\n try:\\n questions = {}\\n for ind, question in enumerate(content['questionsList']):\\n if 'choices' in question:\\n questions.update(\\n {\\n 's.%s.i.%s' % (assessment.unit_id, ind): {\",\n \" try:\\n questions = {}\\n for ind, question in enumerate(content['questionsList']):\\n if 'choices' in question:\\n questions.update(\\n {\\n 's.%s.i.%s' % (assessment.unit_id, ind): {\\n 'answer_counts': [0] * len(question['choices']),\",\n \" questions = {}\",\n \" for ind, question in enumerate(content['questionsList']):\\n if 'choices' in question:\\n questions.update(\\n {\\n 's.%s.i.%s' % (assessment.unit_id, ind): {\\n 'answer_counts': [0] * len(question['choices']),\\n 'label': '%s, Question %s' % (\\n assessment.title, ind + 1),\",\n \" if 'choices' in question:\\n questions.update(\\n {\\n 's.%s.i.%s' % (assessment.unit_id, ind): {\\n 'answer_counts': [0] * len(question['choices']),\\n 'label': '%s, Question %s' % (\\n assessment.title, ind + 1),\\n 'location': self._get_link_for_assessment(\",\n \" questions.update(\\n {\\n 's.%s.i.%s' % (assessment.unit_id, ind): {\\n 'answer_counts': [0] * len(question['choices']),\\n 'label': '%s, Question %s' % (\\n assessment.title, ind + 1),\\n 'location': self._get_link_for_assessment(\\n assessment.unit_id),\",\n \" return questions\",\n \" logging.error(\\n 'Failed to process the question data. '\\n 'Error: %s, data: %s', e, content)\",\n \" return {}\",\n \" def _update_course(self, progress, student):\\n event_key = self._get_course_key()\\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\\n\\n self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\\n course = self._get_course()\\n for unit in course.get_track_matching_student(student):\",\n \" event_key = self._get_course_key()\",\n \" if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\",\n \" course = self._get_course()\",\n \" for unit in course.get_track_matching_student(student):\\n if course.get_parent_unit(unit.unit_id):\\n # Completion of an assessment-as-lesson rolls up to its\\n # containing unit; it is not considered for overall course\\n # completion (except insofar as assessment completion\\n # contributes to the completion of its owning unit)\\n pass\\n else:\",\n \" if course.get_parent_unit(unit.unit_id):\\n # Completion of an assessment-as-lesson rolls up to its\\n # containing unit; it is not considered for overall course\\n # completion (except insofar as assessment completion\\n # contributes to the completion of its owning unit)\\n pass\\n else:\\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\",\n \" if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n if not self.is_assessment_completed(progress, unit.unit_id):\\n return\\n elif unit.type == verify.UNIT_TYPE_UNIT:\\n unit_state = self.get_unit_status(progress, unit.unit_id)\\n if unit_state != self.COMPLETED_STATE:\\n return\",\n \" if not self.is_assessment_completed(progress, unit.unit_id):\\n return\",\n \" return\",\n \" elif unit.type == verify.UNIT_TYPE_UNIT:\\n unit_state = self.get_unit_status(progress, unit.unit_id)\\n if unit_state != self.COMPLETED_STATE:\\n return\",\n \" unit_state = self.get_unit_status(progress, unit.unit_id)\",\n \" if unit_state != self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_course_forced(self, progress):\\n \\\"\\\"\\\"Force state of course to completed.\\\"\\\"\\\"\\n\\n event_key = self._get_course_key()\\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" \\\"\\\"\\\"Force state of course to completed.\\\"\\\"\\\"\",\n \" event_key = self._get_course_key()\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_unit(self, progress, event_key):\\n \\\"\\\"\\\"Updates a unit's progress if all its lessons have been completed.\\\"\\\"\\\"\\n split_event_key = event_key.split('.')\\n assert len(split_event_key) == 2\\n unit_id = split_event_key[1]\\n\\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\",\n \" \\\"\\\"\\\"Updates a unit's progress if all its lessons have been completed.\\\"\\\"\\\"\",\n \" split_event_key = event_key.split('.')\",\n \" unit_id = split_event_key[1]\",\n \" if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\",\n \" lessons = self._get_course().get_lessons(unit_id)\",\n \" for lesson in lessons:\\n if (self.get_lesson_status(\\n progress,\\n unit_id, lesson.lesson_id) != self.COMPLETED_STATE):\\n return\",\n \" if (self.get_lesson_status(\\n progress,\\n unit_id, lesson.lesson_id) != self.COMPLETED_STATE):\\n return\",\n \" return\",\n \" unit = self._get_course().find_unit_by_id(unit_id)\",\n \" pre_assessment_id = unit.pre_assessment\",\n \" if (pre_assessment_id and\\n not self.get_assessment_status(progress, pre_assessment_id)):\\n return\",\n \" return\",\n \" post_assessment_id = unit.post_assessment\",\n \" if (post_assessment_id and\\n not self.get_assessment_status(progress, post_assessment_id)):\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_unit_forced(self, progress, event_key):\\n \\\"\\\"\\\"Force-mark a unit as completed, ignoring normal criteria.\\\"\\\"\\\"\\n\\n # Record that all lessons in this unit have been completed.\\n self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" \\\"\\\"\\\"Force-mark a unit as completed, ignoring normal criteria.\\\"\\\"\\\"\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_lesson(self, progress, event_key):\\n \\\"\\\"\\\"Updates a lesson's progress based on the progress of its children.\\\"\\\"\\\"\\n split_event_key = event_key.split('.')\\n assert len(split_event_key) == 4\\n unit_id = split_event_key[1]\\n lesson_id = split_event_key[3]\\n\\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\",\n \" \\\"\\\"\\\"Updates a lesson's progress based on the progress of its children.\\\"\\\"\\\"\",\n \" split_event_key = event_key.split('.')\",\n \" unit_id = split_event_key[1]\",\n \" lesson_id = split_event_key[3]\",\n \" if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\",\n \" lessons = self._get_course().get_lessons(unit_id)\",\n \" for lesson in lessons:\\n if str(lesson.lesson_id) == lesson_id and lesson:\\n # Is the activity completed?\\n if (lesson.activity and self.get_activity_status(\\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\\n return\\n\\n # Are all components of the lesson completed?\",\n \" if str(lesson.lesson_id) == lesson_id and lesson:\\n # Is the activity completed?\\n if (lesson.activity and self.get_activity_status(\\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\\n return\\n\\n # Are all components of the lesson completed?\\n if (self.get_html_status(\",\n \" if (lesson.activity and self.get_activity_status(\\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\\n return\",\n \" return\",\n \" if (self.get_html_status(\\n progress, unit_id, lesson_id) != self.COMPLETED_STATE):\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_activity(self, progress, event_key):\\n \\\"\\\"\\\"Updates activity's progress when all interactive blocks are done.\\\"\\\"\\\"\\n split_event_key = event_key.split('.')\\n assert len(split_event_key) == 6\\n unit_id = split_event_key[1]\\n lesson_id = split_event_key[3]\\n\\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\",\n \" \\\"\\\"\\\"Updates activity's progress when all interactive blocks are done.\\\"\\\"\\\"\",\n \" split_event_key = event_key.split('.')\",\n \" unit_id = split_event_key[1]\",\n \" lesson_id = split_event_key[3]\",\n \" if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\",\n \" valid_block_ids = self.get_valid_block_ids(unit_id, lesson_id)\",\n \" for block_id in valid_block_ids:\\n if not self.is_block_completed(\\n progress, unit_id, lesson_id, block_id):\\n return\",\n \" if not self.is_block_completed(\\n progress, unit_id, lesson_id, block_id):\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_html(self, progress, event_key):\\n \\\"\\\"\\\"Updates html's progress when all interactive blocks are done.\\\"\\\"\\\"\\n split_event_key = event_key.split('.')\\n assert len(split_event_key) == 6\\n unit_id = split_event_key[1]\\n lesson_id = split_event_key[3]\\n\\n if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\",\n \" \\\"\\\"\\\"Updates html's progress when all interactive blocks are done.\\\"\\\"\\\"\",\n \" split_event_key = event_key.split('.')\",\n \" unit_id = split_event_key[1]\",\n \" lesson_id = split_event_key[3]\",\n \" if self._get_entity_value(progress, event_key) == self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.IN_PROGRESS_STATE)\",\n \" cpt_ids = self.get_valid_component_ids(unit_id, lesson_id)\",\n \" for cpt_id in cpt_ids:\\n if not self.is_component_completed(\\n progress, unit_id, lesson_id, cpt_id):\\n return\",\n \" if not self.is_component_completed(\\n progress, unit_id, lesson_id, cpt_id):\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, self.COMPLETED_STATE)\",\n \" def _update_custom_unit(self, student, event_key, state):\\n \\\"\\\"\\\"Update custom unit.\\\"\\\"\\\"\\n if student.is_transient:\\n return\\n progress = self.get_or_create_progress(student)\\n current_state = self._get_entity_value(progress, event_key)\\n if current_state == state or current_state == self.COMPLETED_STATE:\\n return\",\n \" \\\"\\\"\\\"Update custom unit.\\\"\\\"\\\"\",\n \" if student.is_transient:\\n return\",\n \" return\",\n \" progress = self.get_or_create_progress(student)\",\n \" current_state = self._get_entity_value(progress, event_key)\",\n \" if current_state == state or current_state == self.COMPLETED_STATE:\\n return\",\n \" return\",\n \" self._set_entity_value(progress, event_key, state)\",\n \" progress.updated_on = datetime.datetime.now()\",\n \" progress.put()\",\n \" UPDATER_MAPPING = {\\n 'activity': _update_activity,\\n 'course': _update_course,\\n 'course_forced': _update_course_forced,\\n 'html': _update_html,\\n 'lesson': _update_lesson,\\n 'unit': _update_unit,\\n 'unit_forced': _update_unit_forced,\",\n \" DERIVED_EVENTS = {\\n 'block': (\\n {\\n 'entity': 'activity',\\n 'generate_parent_id': (lambda s: '.'.join(s.split('.')[:-2]))\\n },\\n ),\\n 'activity': (\",\n \" def force_course_completed(self, student):\\n self._put_event(\\n student, 'course_forced', self._get_course_key())\",\n \" self._put_event(\\n student, 'course_forced', self._get_course_key())\",\n \" def force_unit_completed(self, student, unit_id):\\n \\\"\\\"\\\"Records that the given student has completed a unit.\\n\\n NOTE: This should not generally be used directly. The definition\\n of completing a unit is generally taken to be completion of all\\n parts of all components of a unit (assessments, lessons,\\n activities in lessons, etc. Directly marking a unit as complete\\n is provided only for manual marking where the student feels \\\"done\\\",\",\n \" \\\"\\\"\\\"Records that the given student has completed a unit.\\n\\n NOTE: This should not generally be used directly. The definition\\n of completing a unit is generally taken to be completion of all\\n parts of all components of a unit (assessments, lessons,\\n activities in lessons, etc. Directly marking a unit as complete\\n is provided only for manual marking where the student feels \\\"done\\\",\\n but has not taken a fully completionist approach to the material.\",\n \" self._put_event(\\n student, 'unit_forced', self._get_unit_key(unit_id))\",\n \" def put_activity_completed(self, student, unit_id, lesson_id):\\n \\\"\\\"\\\"Records that the given student has completed an activity.\\\"\\\"\\\"\\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\\n self._put_event(\\n student, 'activity', self._get_activity_key(unit_id, lesson_id))\",\n \" \\\"\\\"\\\"Records that the given student has completed an activity.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\",\n \" return\",\n \" self._put_event(\\n student, 'activity', self._get_activity_key(unit_id, lesson_id))\",\n \" def put_html_completed(self, student, unit_id, lesson_id):\\n \\\"\\\"\\\"Records that the given student has completed a lesson page.\\\"\\\"\\\"\\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\\n self._put_event(\\n student, 'html', self._get_html_key(unit_id, lesson_id))\",\n \" \\\"\\\"\\\"Records that the given student has completed a lesson page.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\",\n \" return\",\n \" self._put_event(\\n student, 'html', self._get_html_key(unit_id, lesson_id))\",\n \" def put_block_completed(self, student, unit_id, lesson_id, block_id):\\n \\\"\\\"\\\"Records that the given student has completed an activity block.\\\"\\\"\\\"\\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\\n if block_id not in self.get_valid_block_ids(unit_id, lesson_id):\\n return\\n self._put_event(\\n student,\",\n \" \\\"\\\"\\\"Records that the given student has completed an activity block.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\",\n \" return\",\n \" if block_id not in self.get_valid_block_ids(unit_id, lesson_id):\\n return\",\n \" return\",\n \" self._put_event(\\n student,\\n 'block',\\n self._get_block_key(unit_id, lesson_id, block_id)\\n )\",\n \" def put_component_completed(self, student, unit_id, lesson_id, cpt_id):\\n \\\"\\\"\\\"Records completion of a component in a lesson body.\\\"\\\"\\\"\\n if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\\n if cpt_id not in self.get_valid_component_ids(unit_id, lesson_id):\\n return\\n self._put_event(\\n student,\",\n \" \\\"\\\"\\\"Records completion of a component in a lesson body.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_unit_lesson_id(unit_id, lesson_id):\\n return\",\n \" return\",\n \" if cpt_id not in self.get_valid_component_ids(unit_id, lesson_id):\\n return\",\n \" return\",\n \" self._put_event(\\n student,\\n 'component',\\n self._get_component_key(unit_id, lesson_id, cpt_id)\\n )\",\n \" def put_assessment_completed(self, student, assessment_id):\\n \\\"\\\"\\\"Records that the given student has completed the given assessment.\\\"\\\"\\\"\\n if not self._get_course().is_valid_assessment_id(assessment_id):\\n return\\n self._put_event(\\n student, 'assessment', self._get_assessment_key(assessment_id))\",\n \" \\\"\\\"\\\"Records that the given student has completed the given assessment.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_assessment_id(assessment_id):\\n return\",\n \" return\",\n \" self._put_event(\\n student, 'assessment', self._get_assessment_key(assessment_id))\",\n \" def put_custom_unit_completed(self, student, unit_id):\\n \\\"\\\"\\\"Records that the student has completed the given custom_unit.\\\"\\\"\\\"\\n if not self._get_course().is_valid_custom_unit(unit_id):\\n return\\n self._update_custom_unit(\\n student, self._get_custom_unit_key(unit_id),\\n self.COMPLETED_STATE)\",\n \" \\\"\\\"\\\"Records that the student has completed the given custom_unit.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_custom_unit(unit_id):\\n return\",\n \" return\",\n \" self._update_custom_unit(\\n student, self._get_custom_unit_key(unit_id),\\n self.COMPLETED_STATE)\",\n \" def put_custom_unit_in_progress(self, student, unit_id):\\n \\\"\\\"\\\"Records that the given student has started the given custom_unit.\\\"\\\"\\\"\\n if not self._get_course().is_valid_custom_unit(unit_id):\\n return\\n self._update_custom_unit(\\n student, self._get_custom_unit_key(unit_id),\\n self.IN_PROGRESS_STATE)\",\n \" \\\"\\\"\\\"Records that the given student has started the given custom_unit.\\\"\\\"\\\"\",\n \" if not self._get_course().is_valid_custom_unit(unit_id):\\n return\",\n \" return\",\n \" self._update_custom_unit(\\n student, self._get_custom_unit_key(unit_id),\\n self.IN_PROGRESS_STATE)\",\n \" def put_activity_accessed(self, student, unit_id, lesson_id):\\n \\\"\\\"\\\"Records that the given student has accessed this activity.\\\"\\\"\\\"\\n # This method currently exists because we need to mark activities\\n # without interactive blocks as 'completed' when they are accessed.\\n if not self.get_valid_block_ids(unit_id, lesson_id):\\n self.put_activity_completed(student, unit_id, lesson_id)\",\n \" \\\"\\\"\\\"Records that the given student has accessed this activity.\\\"\\\"\\\"\",\n \" if not self.get_valid_block_ids(unit_id, lesson_id):\\n self.put_activity_completed(student, unit_id, lesson_id)\",\n \" self.put_activity_completed(student, unit_id, lesson_id)\",\n \" def put_html_accessed(self, student, unit_id, lesson_id):\\n \\\"\\\"\\\"Records that the given student has accessed this lesson page.\\\"\\\"\\\"\\n # This method currently exists because we need to mark lesson bodies\\n # without interactive blocks as 'completed' when they are accessed.\\n if not self.get_valid_component_ids(unit_id, lesson_id):\\n self.put_html_completed(student, unit_id, lesson_id)\",\n \" \\\"\\\"\\\"Records that the given student has accessed this lesson page.\\\"\\\"\\\"\",\n \" if not self.get_valid_component_ids(unit_id, lesson_id):\\n self.put_html_completed(student, unit_id, lesson_id)\",\n \" self.put_html_completed(student, unit_id, lesson_id)\",\n \" def _put_event(self, student, event_entity, event_key):\\n \\\"\\\"\\\"Starts a cascade of updates in response to an event taking place.\\\"\\\"\\\"\\n if student.is_transient or event_entity not in self.EVENT_CODE_MAPPING:\\n return\\n\\n progress = self.get_or_create_progress(student)\\n\\n self._update_event(\",\n \" \\\"\\\"\\\"Starts a cascade of updates in response to an event taking place.\\\"\\\"\\\"\",\n \" if student.is_transient or event_entity not in self.EVENT_CODE_MAPPING:\\n return\",\n \" return\",\n \" progress = self.get_or_create_progress(student)\",\n \" self._update_event(\\n student, progress, event_entity, event_key, direct_update=True)\",\n \" progress.updated_on = datetime.datetime.now()\",\n \" progress.put()\",\n \" def _update_event(self, student, progress, event_entity, event_key,\\n direct_update=False):\\n \\\"\\\"\\\"Updates statistics for the given event, and for derived events.\\n\\n Args:\\n student: the student\\n progress: the StudentProgressEntity for the student\\n event_entity: the name of the affected entity (unit, lesson, etc.)\",\n \" \\\"\\\"\\\"Updates statistics for the given event, and for derived events.\\n\\n Args:\\n student: the student\\n progress: the StudentProgressEntity for the student\\n event_entity: the name of the affected entity (unit, lesson, etc.)\\n event_key: the key for the recorded event\\n direct_update: True if this event is being updated explicitly; False\",\n \" if direct_update or event_entity not in self.UPDATER_MAPPING:\\n if event_entity in self.UPDATER_MAPPING:\\n # This is a derived event, so directly mark it as completed.\\n self._set_entity_value(\\n progress, event_key, self.COMPLETED_STATE)\\n else:\\n # This is not a derived event, so increment its counter by one.\\n self._inc(progress, event_key)\",\n \" if event_entity in self.UPDATER_MAPPING:\\n # This is a derived event, so directly mark it as completed.\\n self._set_entity_value(\\n progress, event_key, self.COMPLETED_STATE)\\n else:\\n # This is not a derived event, so increment its counter by one.\\n self._inc(progress, event_key)\",\n \" self._set_entity_value(\\n progress, event_key, self.COMPLETED_STATE)\",\n \" self._inc(progress, event_key)\",\n \" self.UPDATER_MAPPING[event_entity](self, progress, event_key)\",\n \" if event_entity in self.DERIVED_EVENTS:\\n for derived_event in self.DERIVED_EVENTS[event_entity]:\\n parent_event_key = derived_event['generate_parent_id'](\\n event_key)\\n if parent_event_key:\\n # Event entities may contribute upwards to more than one\\n # kind of container. Only pass the notification up to the\\n # handler that our event_key indicates we actually have.\",\n \" for derived_event in self.DERIVED_EVENTS[event_entity]:\\n parent_event_key = derived_event['generate_parent_id'](\\n event_key)\\n if parent_event_key:\\n # Event entities may contribute upwards to more than one\\n # kind of container. Only pass the notification up to the\\n # handler that our event_key indicates we actually have.\\n leaf_type = self.get_entity_type_from_key(parent_event_key)\",\n \" parent_event_key = derived_event['generate_parent_id'](\\n event_key)\",\n \" if parent_event_key:\\n # Event entities may contribute upwards to more than one\\n # kind of container. Only pass the notification up to the\\n # handler that our event_key indicates we actually have.\\n leaf_type = self.get_entity_type_from_key(parent_event_key)\\n event_entity = derived_event['entity']\\n if leaf_type == self.EVENT_CODE_MAPPING[event_entity]:\\n self._update_event(\",\n \" leaf_type = self.get_entity_type_from_key(parent_event_key)\",\n \" event_entity = derived_event['entity']\",\n \" if leaf_type == self.EVENT_CODE_MAPPING[event_entity]:\\n self._update_event(\\n student=student,\\n progress=progress,\\n event_entity=event_entity,\\n event_key=parent_event_key)\",\n \" self._update_event(\\n student=student,\\n progress=progress,\\n event_entity=event_entity,\\n event_key=parent_event_key)\",\n \" self._update_course(progress, student)\",\n \" self._update_course(progress, student)\",\n \" utils.run_hooks(self.POST_UPDATE_PROGRESS_HOOK, self._get_course(),\\n student, progress, event_entity, event_key)\",\n \" def get_course_status(self, progress):\\n return self._get_entity_value(progress, self._get_course_key())\",\n \" return self._get_entity_value(progress, self._get_course_key())\",\n \" def get_unit_status(self, progress, unit_id):\\n return self._get_entity_value(progress, self._get_unit_key(unit_id))\",\n \" return self._get_entity_value(progress, self._get_unit_key(unit_id))\",\n \" def get_custom_unit_status(self, progress, unit_id):\\n return self._get_entity_value(\\n progress, self._get_custom_unit_key(unit_id))\",\n \" return self._get_entity_value(\\n progress, self._get_custom_unit_key(unit_id))\",\n \" def get_lesson_status(self, progress, unit_id, lesson_id):\\n return self._get_entity_value(\\n progress, self._get_lesson_key(unit_id, lesson_id))\",\n \" return self._get_entity_value(\\n progress, self._get_lesson_key(unit_id, lesson_id))\",\n \" def get_activity_status(self, progress, unit_id, lesson_id):\\n return self._get_entity_value(\\n progress, self._get_activity_key(unit_id, lesson_id))\",\n \" return self._get_entity_value(\\n progress, self._get_activity_key(unit_id, lesson_id))\",\n \" def get_html_status(self, progress, unit_id, lesson_id):\\n return self._get_entity_value(\\n progress, self._get_html_key(unit_id, lesson_id))\",\n \" return self._get_entity_value(\\n progress, self._get_html_key(unit_id, lesson_id))\",\n \" def get_block_status(self, progress, unit_id, lesson_id, block_id):\\n return self._get_entity_value(\\n progress, self._get_block_key(unit_id, lesson_id, block_id))\",\n \" return self._get_entity_value(\\n progress, self._get_block_key(unit_id, lesson_id, block_id))\",\n \" def get_assessment_status(self, progress, assessment_id):\\n return self._get_entity_value(\\n progress, self._get_assessment_key(assessment_id))\",\n \" return self._get_entity_value(\\n progress, self._get_assessment_key(assessment_id))\",\n \" def is_block_completed(self, progress, unit_id, lesson_id, block_id):\\n value = self._get_entity_value(\\n progress, self._get_block_key(unit_id, lesson_id, block_id))\\n return value is not None and value > 0\",\n \" value = self._get_entity_value(\\n progress, self._get_block_key(unit_id, lesson_id, block_id))\",\n \" return value is not None and value > 0\",\n \" def is_component_completed(self, progress, unit_id, lesson_id, cpt_id):\\n value = self._get_entity_value(\\n progress, self._get_component_key(unit_id, lesson_id, cpt_id))\\n return value is not None and value > 0\",\n \" value = self._get_entity_value(\\n progress, self._get_component_key(unit_id, lesson_id, cpt_id))\",\n \" return value is not None and value > 0\",\n \" def is_assessment_completed(self, progress, assessment_id):\\n value = self._get_entity_value(\\n progress, self._get_assessment_key(assessment_id))\\n return value is not None and value > 0\",\n \" value = self._get_entity_value(\\n progress, self._get_assessment_key(assessment_id))\",\n \" return value is not None and value > 0\",\n \" def is_custom_unit_completed(self, progress, unit_id):\\n value = self.get_custom_unit_status(progress, unit_id)\\n return self.COMPLETED_STATE == value\",\n \" value = self.get_custom_unit_status(progress, unit_id)\",\n \" return self.COMPLETED_STATE == value\",\n \" def get_or_create_progress(cls, student):\\n progress = StudentPropertyEntity.get(student, cls.PROPERTY_KEY)\\n if not progress:\\n progress = StudentPropertyEntity.create(\\n student=student, property_name=cls.PROPERTY_KEY)\\n progress.put()\\n return progress\",\n \" progress = StudentPropertyEntity.get(student, cls.PROPERTY_KEY)\",\n \" if not progress:\\n progress = StudentPropertyEntity.create(\\n student=student, property_name=cls.PROPERTY_KEY)\\n progress.put()\",\n \" progress = StudentPropertyEntity.create(\\n student=student, property_name=cls.PROPERTY_KEY)\",\n \" progress.put()\",\n \" return progress\",\n \" def get_course_progress(self, student):\\n \\\"\\\"\\\"Return [NOT_STARTED|IN_PROGRESS|COMPLETED]_STATE for course.\\\"\\\"\\\"\\n progress = self.get_or_create_progress(student)\\n return self.get_course_status(progress) or self.NOT_STARTED_STATE\",\n \" \\\"\\\"\\\"Return [NOT_STARTED|IN_PROGRESS|COMPLETED]_STATE for course.\\\"\\\"\\\"\",\n \" progress = self.get_or_create_progress(student)\",\n \" return self.get_course_status(progress) or self.NOT_STARTED_STATE\",\n \" def get_unit_progress(self, student, progress=None):\\n \\\"\\\"\\\"Returns a dict with the states of each unit.\\\"\\\"\\\"\\n if student.is_transient:\\n return {}\\n\\n units = self._get_course().get_units()\\n if progress is None:\\n progress = self.get_or_create_progress(student)\",\n \" \\\"\\\"\\\"Returns a dict with the states of each unit.\\\"\\\"\\\"\",\n \" if student.is_transient:\\n return {}\",\n \" return {}\",\n \" units = self._get_course().get_units()\",\n \" if progress is None:\\n progress = self.get_or_create_progress(student)\",\n \" progress = self.get_or_create_progress(student)\",\n \" result = {}\",\n \" for unit in units:\\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n result[unit.unit_id] = self.is_assessment_completed(\\n progress, unit.unit_id)\\n elif unit.type == verify.UNIT_TYPE_UNIT:\\n value = self.get_unit_status(progress, unit.unit_id)\\n result[unit.unit_id] = value or 0\\n elif unit.type == verify.UNIT_TYPE_CUSTOM:\",\n \" if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n result[unit.unit_id] = self.is_assessment_completed(\\n progress, unit.unit_id)\\n elif unit.type == verify.UNIT_TYPE_UNIT:\\n value = self.get_unit_status(progress, unit.unit_id)\\n result[unit.unit_id] = value or 0\\n elif unit.type == verify.UNIT_TYPE_CUSTOM:\\n value = self.get_custom_unit_status(progress, unit.unit_id)\",\n \" result[unit.unit_id] = self.is_assessment_completed(\\n progress, unit.unit_id)\",\n \" elif unit.type == verify.UNIT_TYPE_UNIT:\\n value = self.get_unit_status(progress, unit.unit_id)\\n result[unit.unit_id] = value or 0\\n elif unit.type == verify.UNIT_TYPE_CUSTOM:\\n value = self.get_custom_unit_status(progress, unit.unit_id)\\n result[unit.unit_id] = value or 0\",\n \" value = self.get_unit_status(progress, unit.unit_id)\",\n \" result[unit.unit_id] = value or 0\",\n \" elif unit.type == verify.UNIT_TYPE_CUSTOM:\\n value = self.get_custom_unit_status(progress, unit.unit_id)\\n result[unit.unit_id] = value or 0\",\n \" value = self.get_custom_unit_status(progress, unit.unit_id)\",\n \" result[unit.unit_id] = value or 0\",\n \" return result\",\n \" def get_unit_percent_complete(self, student):\\n \\\"\\\"\\\"Returns a dict with each unit's completion in [0.0, 1.0].\\\"\\\"\\\"\\n if student.is_transient:\\n return {}\\n\\n course = self._get_course()\\n units = course.get_units()\\n assessment_scores = {int(s['id']): s['score'] / 100.0\",\n \" \\\"\\\"\\\"Returns a dict with each unit's completion in [0.0, 1.0].\\\"\\\"\\\"\",\n \" if student.is_transient:\\n return {}\",\n \" return {}\",\n \" course = self._get_course()\",\n \" units = course.get_units()\",\n \" assessment_scores = {int(s['id']): s['score'] / 100.0\\n for s in course.get_all_scores(student)}\",\n \" result = {}\",\n \" progress = self.get_or_create_progress(student)\",\n \" for unit in units:\\n # Assessments are scored as themselves.\\n if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n result[unit.unit_id] = assessment_scores[unit.unit_id]\\n elif unit.type == verify.UNIT_TYPE_UNIT:\\n if (unit.pre_assessment and\\n assessment_scores[unit.pre_assessment] >= 1.0):\\n # Use pre-assessment iff it exists and student scored 100%\",\n \" if unit.type == verify.UNIT_TYPE_ASSESSMENT:\\n result[unit.unit_id] = assessment_scores[unit.unit_id]\\n elif unit.type == verify.UNIT_TYPE_UNIT:\\n if (unit.pre_assessment and\\n assessment_scores[unit.pre_assessment] >= 1.0):\\n # Use pre-assessment iff it exists and student scored 100%\\n result[unit.unit_id] = 1.0\\n else:\",\n \" result[unit.unit_id] = assessment_scores[unit.unit_id]\",\n \" elif unit.type == verify.UNIT_TYPE_UNIT:\\n if (unit.pre_assessment and\\n assessment_scores[unit.pre_assessment] >= 1.0):\\n # Use pre-assessment iff it exists and student scored 100%\\n result[unit.unit_id] = 1.0\\n else:\\n # Otherwise, count % completion on lessons within unit.\\n num_completed = 0\",\n \" if (unit.pre_assessment and\\n assessment_scores[unit.pre_assessment] >= 1.0):\\n # Use pre-assessment iff it exists and student scored 100%\\n result[unit.unit_id] = 1.0\\n else:\\n # Otherwise, count % completion on lessons within unit.\\n num_completed = 0\\n lesson_progress = self.get_lesson_progress(\",\n \" result[unit.unit_id] = 1.0\",\n \" num_completed = 0\",\n \" lesson_progress = self.get_lesson_progress(\\n student, unit.unit_id, progress=progress)\",\n \" if not lesson_progress:\\n result[unit.unit_id] = 0.0\\n else:\\n for lesson in lesson_progress.values():\\n if lesson['has_activity']:\\n # Lessons that have activities must be\\n # activity-complete as well as HTML complete.\\n if (lesson['html'] == self.COMPLETED_STATE and\",\n \" result[unit.unit_id] = 0.0\",\n \" for lesson in lesson_progress.values():\\n if lesson['has_activity']:\\n # Lessons that have activities must be\\n # activity-complete as well as HTML complete.\\n if (lesson['html'] == self.COMPLETED_STATE and\\n lesson['activity'] == self.COMPLETED_STATE):\\n num_completed += 1\\n else:\",\n \" if lesson['has_activity']:\\n # Lessons that have activities must be\\n # activity-complete as well as HTML complete.\\n if (lesson['html'] == self.COMPLETED_STATE and\\n lesson['activity'] == self.COMPLETED_STATE):\\n num_completed += 1\\n else:\\n # Lessons without activities just need HTML\",\n \" if (lesson['html'] == self.COMPLETED_STATE and\\n lesson['activity'] == self.COMPLETED_STATE):\\n num_completed += 1\",\n \" if lesson['html'] == self.COMPLETED_STATE:\\n num_completed += 1\",\n \" result[unit.unit_id] = round(\\n num_completed / float(len(lesson_progress)), 3)\",\n \" return result\",\n \" def get_lesson_progress(self, student, unit_id, progress=None):\\n \\\"\\\"\\\"Returns a dict saying which lessons in this unit are completed.\\\"\\\"\\\"\\n if student.is_transient:\\n return {}\\n\\n lessons = self._get_course().get_lessons(unit_id)\\n if progress is None:\\n progress = self.get_or_create_progress(student)\",\n \" \\\"\\\"\\\"Returns a dict saying which lessons in this unit are completed.\\\"\\\"\\\"\",\n \" if student.is_transient:\\n return {}\",\n \" return {}\",\n \" lessons = self._get_course().get_lessons(unit_id)\",\n \" if progress is None:\\n progress = self.get_or_create_progress(student)\",\n \" progress = self.get_or_create_progress(student)\",\n \" result = {}\",\n \" for lesson in lessons:\\n result[lesson.lesson_id] = {\\n 'html': self.get_html_status(\\n progress, unit_id, lesson.lesson_id) or 0,\\n 'activity': self.get_activity_status(\\n progress, unit_id, lesson.lesson_id) or 0,\\n 'has_activity': lesson.has_activity,\\n }\",\n \" result[lesson.lesson_id] = {\\n 'html': self.get_html_status(\\n progress, unit_id, lesson.lesson_id) or 0,\\n 'activity': self.get_activity_status(\\n progress, unit_id, lesson.lesson_id) or 0,\\n 'has_activity': lesson.has_activity,\\n }\",\n \" return result\",\n \" def get_component_progress(self, student, unit_id, lesson_id, cpt_id):\\n \\\"\\\"\\\"Returns the progress status of the given component.\\\"\\\"\\\"\\n if student.is_transient:\\n return 0\\n\\n progress = self.get_or_create_progress(student)\\n return self.is_component_completed(\\n progress, unit_id, lesson_id, cpt_id) or 0\",\n \" \\\"\\\"\\\"Returns the progress status of the given component.\\\"\\\"\\\"\",\n \" if student.is_transient:\\n return 0\",\n \" return 0\",\n \" progress = self.get_or_create_progress(student)\",\n \" return self.is_component_completed(\\n progress, unit_id, lesson_id, cpt_id) or 0\",\n \" def _get_entity_value(self, progress, event_key):\\n if not progress.value:\\n return None\\n return transforms.loads(progress.value).get(event_key)\",\n \" if not progress.value:\\n return None\",\n \" return None\",\n \" return transforms.loads(progress.value).get(event_key)\",\n \" def _set_entity_value(self, student_property, key, value):\\n \\\"\\\"\\\"Sets the integer value of a student property.\\n\\n Note: this method does not commit the change. The calling method should\\n call put() on the StudentPropertyEntity.\\n\\n Args:\\n student_property: the StudentPropertyEntity\",\n \" \\\"\\\"\\\"Sets the integer value of a student property.\\n\\n Note: this method does not commit the change. The calling method should\\n call put() on the StudentPropertyEntity.\\n\\n Args:\\n student_property: the StudentPropertyEntity\\n key: the student property whose value should be incremented\",\n \" try:\\n progress_dict = transforms.loads(student_property.value)\\n except (AttributeError, TypeError):\\n progress_dict = {}\",\n \" progress_dict = transforms.loads(student_property.value)\",\n \" progress_dict = {}\",\n \" progress_dict[key] = value\",\n \" student_property.value = transforms.dumps(progress_dict)\",\n \" def _inc(self, student_property, key, value=1):\\n \\\"\\\"\\\"Increments the integer value of a student property.\\n\\n Note: this method does not commit the change. The calling method should\\n call put() on the StudentPropertyEntity.\\n\\n Args:\\n student_property: the StudentPropertyEntity\",\n \" \\\"\\\"\\\"Increments the integer value of a student property.\\n\\n Note: this method does not commit the change. The calling method should\\n call put() on the StudentPropertyEntity.\\n\\n Args:\\n student_property: the StudentPropertyEntity\\n key: the student property whose value should be incremented\",\n \" try:\\n progress_dict = transforms.loads(student_property.value)\\n except (AttributeError, TypeError):\\n progress_dict = {}\",\n \" progress_dict = transforms.loads(student_property.value)\",\n \" progress_dict = {}\",\n \" if key not in progress_dict:\\n progress_dict[key] = 0\",\n \" progress_dict[key] = 0\",\n \" student_property.value = transforms.dumps(progress_dict)\",\n \" def get_elements_from_key(cls, key):\\n \\\"\\\"\\\"Decomposes the key into a dictionary with its values.\\n\\n Args:\\n key: a string, the key of an element of the progress. For\\n example, u.1.l.5.h.0\\n\\n Returns:\",\n \" \\\"\\\"\\\"Decomposes the key into a dictionary with its values.\\n\\n Args:\\n key: a string, the key of an element of the progress. For\\n example, u.1.l.5.h.0\\n\\n Returns:\\n A dictionary mapping each element in the key to its value. For\",\n \" reversed_event_mapping = defaultdict(lambda: [])\",\n \" for full_type, value in cls.EVENT_CODE_MAPPING.iteritems():\\n reversed_event_mapping[value].append(full_type)\",\n \" reversed_event_mapping[value].append(full_type)\",\n \" key_elements = key.split('.')\",\n \" result = {}\",\n \" for index in range(0, len(key_elements), 2):\\n element_type = key_elements[index]\\n element_value = key_elements[index + 1]\\n full_element_types = reversed_event_mapping.get(element_type)\\n for full_element_type in full_element_types:\\n result[full_element_type] = element_value\",\n \" element_type = key_elements[index]\",\n \" element_value = key_elements[index + 1]\",\n \" full_element_types = reversed_event_mapping.get(element_type)\",\n \" for full_element_type in full_element_types:\\n result[full_element_type] = element_value\",\n \" result[full_element_type] = element_value\",\n \" return result\",\n \"class ProgressStats(object):\\n \\\"\\\"\\\"Defines the course structure definition for course progress tracking.\\\"\\\"\\\"\\n\\n def __init__(self, course):\\n self._course = course\\n self._tracker = UnitLessonCompletionTracker(course)\\n\\n def compute_entity_dict(self, entity, parent_ids):\",\n \" \\\"\\\"\\\"Defines the course structure definition for course progress tracking.\\\"\\\"\\\"\",\n \" def __init__(self, course):\\n self._course = course\\n self._tracker = UnitLessonCompletionTracker(course)\",\n \" self._course = course\",\n \" self._tracker = UnitLessonCompletionTracker(course)\",\n \" def compute_entity_dict(self, entity, parent_ids):\\n \\\"\\\"\\\"Computes the course structure dictionary.\\n\\n Args:\\n entity: str. Represents for which level of entity the dict is being\\n computed. Valid entity levels are defined as keys to the dict\\n defined below, COURSE_STRUCTURE_DICT.\\n parent_ids: list of ids necessary to get children of the current\",\n \" \\\"\\\"\\\"Computes the course structure dictionary.\\n\\n Args:\\n entity: str. Represents for which level of entity the dict is being\\n computed. Valid entity levels are defined as keys to the dict\\n defined below, COURSE_STRUCTURE_DICT.\\n parent_ids: list of ids necessary to get children of the current\\n entity.\",\n \" entity_dict = {'label': self._get_label(entity, parent_ids)}\",\n \" for child_entity, get_children_ids in self.COURSE_STRUCTURE_DICT[\\n entity]['children']:\\n child_entity_dict = {}\\n for child_id in get_children_ids(self, *parent_ids):\\n new_parent_ids = parent_ids + [child_id]\\n child_entity_dict[child_id] = self.compute_entity_dict(\\n child_entity, new_parent_ids)\\n entity_dict[UnitLessonCompletionTracker.EVENT_CODE_MAPPING[\",\n \" child_entity_dict = {}\",\n \" for child_id in get_children_ids(self, *parent_ids):\\n new_parent_ids = parent_ids + [child_id]\\n child_entity_dict[child_id] = self.compute_entity_dict(\\n child_entity, new_parent_ids)\",\n \" new_parent_ids = parent_ids + [child_id]\",\n \" child_entity_dict[child_id] = self.compute_entity_dict(\\n child_entity, new_parent_ids)\",\n \" entity_dict[UnitLessonCompletionTracker.EVENT_CODE_MAPPING[\\n child_entity]] = child_entity_dict\",\n \" return entity_dict\",\n \" def _get_course(self):\\n return self._course\",\n \" return self._course\",\n \" def _get_unit_ids_of_type_unit(self):\\n units = self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT)\\n return [unit.unit_id for unit in units]\",\n \" units = self._get_course().get_units_of_type(verify.UNIT_TYPE_UNIT)\",\n \" return [unit.unit_id for unit in units]\",\n \" def _get_assessment_ids(self):\\n assessments = self._get_course().get_assessment_list()\\n return [a.unit_id for a in assessments]\",\n \" assessments = self._get_course().get_assessment_list()\",\n \" return [a.unit_id for a in assessments]\",\n \" def _get_lesson_ids(self, unit_id):\\n lessons = self._get_course().get_lessons(unit_id)\\n return [lesson.lesson_id for lesson in lessons]\",\n \" lessons = self._get_course().get_lessons(unit_id)\",\n \" return [lesson.lesson_id for lesson in lessons]\",\n \" def _get_activity_ids(self, unit_id, lesson_id):\\n unit = self._get_course().find_unit_by_id(unit_id)\\n if self._get_course().find_lesson_by_id(unit, lesson_id).activity:\\n return [0]\\n return []\",\n \" unit = self._get_course().find_unit_by_id(unit_id)\",\n \" if self._get_course().find_lesson_by_id(unit, lesson_id).activity:\\n return [0]\",\n \" return [0]\",\n \" return []\",\n \" def _get_html_ids(self, unused_unit_id, unused_lesson_id):\\n return [0]\",\n \" return [0]\",\n \" def _get_block_ids(self, unit_id, lesson_id, unused_activity_id):\\n return self._tracker.get_valid_block_ids(unit_id, lesson_id)\",\n \" return self._tracker.get_valid_block_ids(unit_id, lesson_id)\",\n \" def _get_component_ids(self, unit_id, lesson_id, unused_html_id):\\n return self._tracker.get_valid_component_ids(unit_id, lesson_id)\",\n \" return self._tracker.get_valid_component_ids(unit_id, lesson_id)\",\n \" def _get_label(self, entity, parent_ids):\\n return self.ENTITY_TO_HUMAN_READABLE_NAME_DICT[entity](\\n self, *parent_ids)\",\n \" return self.ENTITY_TO_HUMAN_READABLE_NAME_DICT[entity](\\n self, *parent_ids)\",\n \" def _get_course_label(self):\\n # pylint: disable=protected-access\\n return courses.Course.get_environ(self._get_course().app_context)[\\n 'course']['title']\",\n \" return courses.Course.get_environ(self._get_course().app_context)[\\n 'course']['title']\",\n \" def _get_unit_label(self, unit_id):\\n unit = self._get_course().find_unit_by_id(unit_id)\\n return 'Unit %s' % unit.index\",\n \" unit = self._get_course().find_unit_by_id(unit_id)\",\n \" return 'Unit %s' % unit.index\",\n \" def _get_assessment_label(self, unit_id):\\n assessment = self._get_course().find_unit_by_id(unit_id)\\n return assessment.title\",\n \" assessment = self._get_course().find_unit_by_id(unit_id)\",\n \" return assessment.title\",\n \" def _get_lesson_label(self, unit_id, lesson_id):\\n unit = self._get_course().find_unit_by_id(unit_id)\\n lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\\n return lesson.index\",\n \" unit = self._get_course().find_unit_by_id(unit_id)\",\n \" lesson = self._get_course().find_lesson_by_id(unit, lesson_id)\",\n \" return lesson.index\",\n \" def _get_activity_label(self, unit_id, lesson_id, unused_activity_id):\\n return str('L%s.%s' % (\\n self._get_course().find_unit_by_id(unit_id).index,\\n self._get_lesson_label(unit_id, lesson_id)))\",\n \" return str('L%s.%s' % (\\n self._get_course().find_unit_by_id(unit_id).index,\\n self._get_lesson_label(unit_id, lesson_id)))\",\n \" def _get_html_label(self, unit_id, lesson_id, unused_html_id):\\n return self._get_activity_label(unit_id, lesson_id, unused_html_id)\",\n \" return self._get_activity_label(unit_id, lesson_id, unused_html_id)\",\n \" def _get_block_label(self, unit_id, lesson_id, unused_activity_id,\\n block_id):\\n return str('L%s.%s.%s' % (\\n self._get_course().find_unit_by_id(unit_id).index,\\n self._get_lesson_label(unit_id, lesson_id),\\n block_id))\",\n \" return str('L%s.%s.%s' % (\\n self._get_course().find_unit_by_id(unit_id).index,\\n self._get_lesson_label(unit_id, lesson_id),\\n block_id))\",\n \" def _get_component_label(self, unit_id, lesson_id, unused_html_id,\\n component_id):\\n return self._get_block_label(\\n unit_id, lesson_id, unused_html_id, component_id)\",\n \" return self._get_block_label(\\n unit_id, lesson_id, unused_html_id, component_id)\",\n \" COURSE_STRUCTURE_DICT = {\\n 'course': {\\n 'children': [('unit', _get_unit_ids_of_type_unit),\\n ('assessment', _get_assessment_ids)],\\n },\\n 'unit': {\\n 'children': [('lesson', _get_lesson_ids)],\\n },\",\n \" ENTITY_TO_HUMAN_READABLE_NAME_DICT = {\\n 'course': _get_course_label,\\n 'unit': _get_unit_label,\\n 'assessment': _get_assessment_label,\\n 'lesson': _get_lesson_label,\\n 'activity': _get_activity_label,\\n 'html': _get_html_label,\\n 'block': _get_block_label,\"\n]","isConversational":false}}},{"rowIdx":4784,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Registration for data sources.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nimport logging\n\nfrom models import jobs\nfrom models.data_sources import base_types\n\n\nclass _Registry(object):\n\n _data_source_classes = []\n _data_source_names = {}\n\n @classmethod\n def register(cls, clazz):\n # Package private: pylint: disable=protected-access\n if not issubclass(clazz, base_types._DataSource):\n raise ValueError(\n 'All registered data sources must ultimately inherit '\n 'from models.data_source.data_types._DataSource; '\n '\"%s\" does not.' % clazz.__name__)\n if hasattr(clazz, 'get_name'):\n if clazz.get_name() in cls._data_source_names:\n raise ValueError(\n 'Cannot register class with name \"%s\"; class %s has '\n 'already registered that name.' % (\n clazz.get_name(),\n cls._data_source_names[clazz.get_name()]))\n cls._data_source_names[clazz.get_name()] = clazz\n\n clazz.verify_on_registration()\n cls._data_source_classes.append(clazz)\n\n @classmethod\n def unregister(cls, clazz):\n if clazz in cls._data_source_classes:\n cls._data_source_classes.remove(clazz)\n if hasattr(clazz, 'get_name'):\n try:\n del cls._data_source_names[clazz.get_name()]\n except KeyError:\n logging.critical(\n 'Trying to unregister name \"%s\" for source class %s, '\n 'but this name was not registered when the class was.',\n clazz.get_name(), clazz.__name__)\n else:\n logging.error('Trying to unregister data source class %s, '\n 'but this class is not currently registered',\n clazz.__name__)\n\n @classmethod\n def get_rest_data_source_classes(cls):\n return [c for c in cls._data_source_classes\n # Package private: pylint: disable=protected-access\n if issubclass(c, base_types._AbstractRestDataSource)]\n\n @classmethod\n def is_registered(cls, clazz):\n return clazz in cls._data_source_classes\n\n @classmethod\n def get_generator_classes(cls):\n ret = set()\n for c in cls._data_source_classes:\n for g in c.required_generators():\n if issubclass(g, jobs.DurableJobBase):\n ret.add(g)\n return ret\n"},"vector":{"kind":"list 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0.0238,\n 4,\n 0.94,\n 0,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 2\n ],\n [\n 8,\n 5,\n 0.9881,\n 0.0119,\n 5,\n 0.95,\n 0,\n 241,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 2,\n 1,\n 0.0119,\n 2,\n 0.83,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Registration for data sources.\"\"\"","__author__ = 'Mike Gainer (mgainer@google.com)'","import logging","from models import jobs","from models.data_sources import base_types","class _Registry(object):\n\n _data_source_classes = []\n _data_source_names = {}\n\n @classmethod\n def register(cls, clazz):\n # Package private: pylint: disable=protected-access"," _data_source_classes = []"," _data_source_names = {}"," def register(cls, clazz):\n # Package private: pylint: disable=protected-access\n if not issubclass(clazz, base_types._DataSource):\n raise ValueError(\n 'All registered data sources must ultimately inherit '\n 'from models.data_source.data_types._DataSource; '\n '\"%s\" does not.' % clazz.__name__)\n if hasattr(clazz, 'get_name'):"," if not issubclass(clazz, base_types._DataSource):\n raise ValueError(\n 'All registered data sources must ultimately inherit '\n 'from models.data_source.data_types._DataSource; '\n '\"%s\" does not.' % clazz.__name__)"," if hasattr(clazz, 'get_name'):\n if clazz.get_name() in cls._data_source_names:\n raise ValueError(\n 'Cannot register class with name \"%s\"; class %s has '\n 'already registered that name.' % (\n clazz.get_name(),\n cls._data_source_names[clazz.get_name()]))\n cls._data_source_names[clazz.get_name()] = clazz"," if clazz.get_name() in cls._data_source_names:\n raise ValueError(\n 'Cannot register class with name \"%s\"; class %s has '\n 'already registered that name.' % (\n clazz.get_name(),\n cls._data_source_names[clazz.get_name()]))"," cls._data_source_names[clazz.get_name()] = clazz"," clazz.verify_on_registration()"," cls._data_source_classes.append(clazz)"," def unregister(cls, clazz):\n if clazz in cls._data_source_classes:\n cls._data_source_classes.remove(clazz)\n if hasattr(clazz, 'get_name'):\n try:\n del cls._data_source_names[clazz.get_name()]\n except KeyError:\n logging.critical("," if clazz in cls._data_source_classes:\n cls._data_source_classes.remove(clazz)\n if hasattr(clazz, 'get_name'):\n try:\n del cls._data_source_names[clazz.get_name()]\n except KeyError:\n logging.critical(\n 'Trying to unregister name \"%s\" for source class %s, '"," cls._data_source_classes.remove(clazz)"," if hasattr(clazz, 'get_name'):\n try:\n del cls._data_source_names[clazz.get_name()]\n except KeyError:\n logging.critical(\n 'Trying to unregister name \"%s\" for source class %s, '\n 'but this name was not registered when the class was.',\n clazz.get_name(), clazz.__name__)"," try:\n del cls._data_source_names[clazz.get_name()]\n except KeyError:\n logging.critical(\n 'Trying to unregister name \"%s\" for source class %s, '\n 'but this name was not registered when the class was.',\n clazz.get_name(), clazz.__name__)"," logging.critical(\n 'Trying to unregister name \"%s\" for source class %s, '\n 'but this name was not registered when the class was.',\n clazz.get_name(), clazz.__name__)"," logging.error('Trying to unregister data source class %s, '\n 'but this class is not currently registered',\n clazz.__name__)"," def get_rest_data_source_classes(cls):\n return [c for c in cls._data_source_classes\n # Package private: pylint: disable=protected-access\n if issubclass(c, base_types._AbstractRestDataSource)]"," return [c for c in cls._data_source_classes\n # Package private: pylint: disable=protected-access\n if issubclass(c, base_types._AbstractRestDataSource)]"," def is_registered(cls, clazz):\n return clazz in cls._data_source_classes"," return clazz in cls._data_source_classes"," def get_generator_classes(cls):\n ret = set()\n for c in cls._data_source_classes:\n for g in c.required_generators():\n if issubclass(g, jobs.DurableJobBase):\n ret.add(g)\n return ret"," ret = set()"," for c in cls._data_source_classes:\n for g in c.required_generators():\n if issubclass(g, jobs.DurableJobBase):\n ret.add(g)"," for g in c.required_generators():\n if issubclass(g, jobs.DurableJobBase):\n ret.add(g)"," if issubclass(g, jobs.DurableJobBase):\n ret.add(g)"," ret.add(g)"," return ret"],"string":"[\n \"\\\"\\\"\\\"Registration for data sources.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"import logging\",\n \"from models import jobs\",\n \"from models.data_sources import base_types\",\n \"class _Registry(object):\\n\\n _data_source_classes = []\\n _data_source_names = {}\\n\\n @classmethod\\n def register(cls, clazz):\\n # Package private: pylint: disable=protected-access\",\n \" _data_source_classes = []\",\n \" _data_source_names = {}\",\n \" def register(cls, clazz):\\n # Package private: pylint: disable=protected-access\\n if not issubclass(clazz, base_types._DataSource):\\n raise ValueError(\\n 'All registered data sources must ultimately inherit '\\n 'from models.data_source.data_types._DataSource; '\\n '\\\"%s\\\" does not.' % clazz.__name__)\\n if hasattr(clazz, 'get_name'):\",\n \" if not issubclass(clazz, base_types._DataSource):\\n raise ValueError(\\n 'All registered data sources must ultimately inherit '\\n 'from models.data_source.data_types._DataSource; '\\n '\\\"%s\\\" does not.' % clazz.__name__)\",\n \" if hasattr(clazz, 'get_name'):\\n if clazz.get_name() in cls._data_source_names:\\n raise ValueError(\\n 'Cannot register class with name \\\"%s\\\"; class %s has '\\n 'already registered that name.' % (\\n clazz.get_name(),\\n cls._data_source_names[clazz.get_name()]))\\n cls._data_source_names[clazz.get_name()] = clazz\",\n \" if clazz.get_name() in cls._data_source_names:\\n raise ValueError(\\n 'Cannot register class with name \\\"%s\\\"; class %s has '\\n 'already registered that name.' % (\\n clazz.get_name(),\\n cls._data_source_names[clazz.get_name()]))\",\n \" cls._data_source_names[clazz.get_name()] = clazz\",\n \" clazz.verify_on_registration()\",\n \" cls._data_source_classes.append(clazz)\",\n \" def unregister(cls, clazz):\\n if clazz in cls._data_source_classes:\\n cls._data_source_classes.remove(clazz)\\n if hasattr(clazz, 'get_name'):\\n try:\\n del cls._data_source_names[clazz.get_name()]\\n except KeyError:\\n logging.critical(\",\n \" if clazz in cls._data_source_classes:\\n cls._data_source_classes.remove(clazz)\\n if hasattr(clazz, 'get_name'):\\n try:\\n del cls._data_source_names[clazz.get_name()]\\n except KeyError:\\n logging.critical(\\n 'Trying to unregister name \\\"%s\\\" for source class %s, '\",\n \" cls._data_source_classes.remove(clazz)\",\n \" if hasattr(clazz, 'get_name'):\\n try:\\n del cls._data_source_names[clazz.get_name()]\\n except KeyError:\\n logging.critical(\\n 'Trying to unregister name \\\"%s\\\" for source class %s, '\\n 'but this name was not registered when the class was.',\\n clazz.get_name(), clazz.__name__)\",\n \" try:\\n del cls._data_source_names[clazz.get_name()]\\n except KeyError:\\n logging.critical(\\n 'Trying to unregister name \\\"%s\\\" for source class %s, '\\n 'but this name was not registered when the class was.',\\n clazz.get_name(), clazz.__name__)\",\n \" logging.critical(\\n 'Trying to unregister name \\\"%s\\\" for source class %s, '\\n 'but this name was not registered when the class was.',\\n clazz.get_name(), clazz.__name__)\",\n \" logging.error('Trying to unregister data source class %s, '\\n 'but this class is not currently registered',\\n clazz.__name__)\",\n \" def get_rest_data_source_classes(cls):\\n return [c for c in cls._data_source_classes\\n # Package private: pylint: disable=protected-access\\n if issubclass(c, base_types._AbstractRestDataSource)]\",\n \" return [c for c in cls._data_source_classes\\n # Package private: pylint: disable=protected-access\\n if issubclass(c, base_types._AbstractRestDataSource)]\",\n \" def is_registered(cls, clazz):\\n return clazz in cls._data_source_classes\",\n \" return clazz in cls._data_source_classes\",\n \" def get_generator_classes(cls):\\n ret = set()\\n for c in cls._data_source_classes:\\n for g in c.required_generators():\\n if issubclass(g, jobs.DurableJobBase):\\n ret.add(g)\\n return ret\",\n \" ret = set()\",\n \" for c in cls._data_source_classes:\\n for g in c.required_generators():\\n if issubclass(g, jobs.DurableJobBase):\\n ret.add(g)\",\n \" for g in c.required_generators():\\n if issubclass(g, jobs.DurableJobBase):\\n ret.add(g)\",\n \" if issubclass(g, jobs.DurableJobBase):\\n ret.add(g)\",\n \" ret.add(g)\",\n \" return ret\"\n]","isConversational":false}}},{"rowIdx":4785,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Module providing base types for analytics.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nimport re\n\n\nclass _DataSource(object):\n \"\"\"Common base class for all kinds of data sources.\"\"\"\n\n @staticmethod\n def required_generators():\n \"\"\"Tell what long-running jobs (if any) are required for this source.\n\n Return an array of classes. The empty array is allowed if\n your data source does not depend on any data sources. All\n data sources named must derive from DurableJobBase. When the\n framework calls to the display content generator function, the\n jobs will be provided singly as parameters. E.g., if you\n return [FooGenerator, BarGenerator] here, your fill_values\n method should be declared:\n\n @staticmethod\n def fill_values(app_context, template_values, foo_generator_job,\n bar_generator_job)\n foo_results = transforms.loads(foo_generator_job.load().output)\n template_values['foo_widgets'] = foo_results['widgets']\n template_values['foo_frammis'] = foo_results['frammis']\n ... and similarly for bar_generator_job. ...\n Returns:\n Array of types derived from DurableJobBase. May be empty list.\n \"\"\"\n\n return []\n\n @classmethod\n def verify_on_registration(cls):\n \"\"\"Override to perform sanity-checking at registration time.\"\"\"\n pass\n\n\nclass _SynchronousQuery(_DataSource):\n \"\"\"Inherit from this class to indicate your data source is synchronous.\n\n By synchronous, we mean that when the dashboard display is\n created, we directly generate HTML from a template and parameters,\n as opposed to asynchronously fetching data up to the page (via\n JavaScript) after the page has loaded.\n\n It is OK for a data source to inherit both from SynchronousQuery\n and from _AbstractRestDataSource. In this situation, fill_values() will\n be called synchronously, and fetch_values asynchronously when\n the JavaScript on the page makes a JSON request.\n \"\"\"\n\n @staticmethod\n def fill_values(app_context, template_values, required_generator_job_1,\n required_generator_job_2, required_generator_job_N):\n \"\"\"Set key/value strings for use in HTML template expansion.\n\n Args:\n app_context: the context taking the request. This can be used to\n identify the namespace for the request.\n template_values: A hash to be filled in by fill_values. Its\n contents are provided to the template interpreter. All\n sources used by a single analytic contribute to the same\n template_values dict; be careful to avoid name collisions.\n required_generator_job_1: Your class may declare that it it needs\n one or more generators from which to obtain data values. You\n do this by overriding _DataSource.required_generators() to\n name the class definitions. When this function is called, the\n Job objects corresponding to those generators are passed in to\n this function (in the same order in which they were specified\n in the return value from required_generators(). Your class\n should then extract the results from the job and return them\n from this function.\n required_generator_job_2: as required_generator_job_1\n required_generator_job_N: as required_generator_job_1\n Returns:\n Return value is ignored.\n \"\"\"\n\n raise NotImplementedError(\n 'Classes which synchronously provide parameters for '\n 'expansion into their HTML templates must implement the '\n 'fill_values method.')\n\n\nclass _AbstractRestDataSource(_DataSource):\n \"\"\"Provide paginated data supplied to clients via a REST API.\n\n This data source will be served from a REST-style URL. The\n canonical use of this data is to provide raw input to JavaScript\n charting/graphing libraries on the dashboard's analytics page.\n However, the source is available for any authorized user to make\n use of however he sees fit.\n\n It is OK for a data source to inherit both from SynchronousQuery\n and from _AbstractRestDataSource. In this situation, fill_values() will\n be called synchronously, and fetch_values asynchronously when\n the JavaScript on the page makes a JSON request.\n \"\"\"\n\n # This limit is based on manual experiments with CourseBuilder and\n # simulated randomized student data. 10,000 is plenty fast,\n # and 400,000 items causes a several-second delay in repainting of\n # graphs. Picking 10,000 for safety against larger object sizes.\n RECOMMENDED_MAX_DATA_ITEMS = 10000\n\n # Mantain registry of sources by name so that we can guarantee that\n # names will be unique.\n _rest_data_sources_by_name = {}\n\n @classmethod\n def get_name(cls):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must provide a name '\n 'by which they are known. This name must be composed only '\n 'of lowercase alphabetics, numerics and underscores. (This'\n 'name will, among other uses, be employed to create '\n 'JavaScript identifiers.) Also, this name must be globally '\n 'unique within a CourseBuilder installation.')\n\n @classmethod\n def get_title(cls):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must provide a '\n 'title string for display on web pages. This is used in the '\n 'context of controls to select a particular page.')\n\n @classmethod\n def exportable(cls):\n return False\n\n @classmethod\n def get_default_chunk_size(cls):\n \"\"\"Tell what the recommended number of items per page is.\n\n This will vary based on the sizes of the items returned. Note that\n this is not an absolute maximum; the UI may request more than this\n value (up to the absolute maximum imposed by App Engine overall\n response size limits).\n\n This value can be set to zero to indicate that the resource does not\n support or require paging. This is useful for, e.g., course-level\n items (units, assessments) of which we expect to have never more than\n tens to hundreds.\n\n Returns:\n Recommended maximum items per page of data source items\n \"\"\"\n return cls.RECOMMENDED_MAX_DATA_ITEMS\n\n @classmethod\n def get_context_class(cls):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must provide a class '\n 'inherited from _AbstractContextManager. This class should handle '\n 'building and maintaining a context used for storing '\n 'parameters and optimizations for fetching values. If '\n 'no context is needed, the NullContextManager class may '\n 'be returned from this function.')\n\n @classmethod\n def get_schema(cls, app_context, log, source_context):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must be able to '\n 'statically produce a JSON schema describing their typical '\n 'contents. This function must return a dict as produced by '\n 'FieldRegistry.get_json_schema_dict().')\n\n @classmethod\n def fetch_values(cls, app_context, source_context, schema, log,\n page_number, foo_job):\n \"\"\"Provide data to be returned from this source.\n\n This function should return a plain Python array of dicts. (The point\n here is that the data must not require any postprocessing before it is\n converted to a JSON string.)\n\n Args:\n app_context: The application context for the current request;\n useful for namespacing any datastore queries you may need to\n perform.\n source_context: A context instance/object as produced from a\n _AbstractContextManager.build_from_web_request() or\n build_from_dict() call. This class specifies the exact\n sub-type of _AbstractContextManager that should be used with\n it, so the specific type of context object can be relied upon.\n schema: A schema, as returned from the get_schema() method. It is\n possible that the schema may need to be modified as the result\n of a get_data operation -- e.g., to include fields that are\n present in the actual data even though not mentioned in the\n formal type definition, and so this field is provided to\n the fetch_values() operation, just-in-case.\n log: A Log instance; use this to remark on any problems or\n progress during processing.\n page_number: The number of the page of data items desired.\n foo_job: One parameter for each of the job classes returned by\n required_generators() (if any), in that same order. These are\n passed as separate parameters for convenience of naming in\n your code.\n \"\"\"\n raise NotImplementedError(\n 'Data sources which provide asynchronous feeds must '\n 'implement the fetch_values() method.')\n\n @classmethod\n def verify_on_registration(cls):\n source_name = cls.get_name()\n if not re.match('^[_0-9a-z]+$', source_name):\n raise ValueError(\n 'REST data source name \"%s\" ' % source_name +\n 'must contain only lowercase letters, '\n 'numbers or underscore characters')\n other_class = cls._rest_data_sources_by_name.get(\n source_name, None)\n if other_class:\n raise ValueError(\n 'Error: the name \"%s\" ' % source_name +\n 'is already registered to the class ' +\n '%s' % other_class.__module__ +\n '.%s' % other_class.__name__ +\n '; you cannot register '\n '%s' % cls.__module__ +\n '.%s' % cls.__name__ +\n 'with the same name.')\n\n\nclass _AbstractContextManager(object):\n \"\"\"Interface for managing contexts used by _AbstractRestDataSource types.\n\n When a REST request is made, a context is returned along with the data and\n other items. Subsequent REST requests should provide the context object.\n This permits the data fetching class to retain state across operations.\n Generally, a _AbstractContextManager type will be quite specific to the\n type of _AbstractRestDataSource. However, the responsibilities of context\n management are quite specific and thus these are separated into a distinct\n interface.\n\n Note that all the methods in this class are specifed as @classmethod.\n This is intentional: It permits this class to return either instances\n of itself, another type, or a simple dict.\n \"\"\"\n\n @classmethod\n def build_from_web_request(cls, params, default_chunk_size):\n \"\"\"Build a context instance given a set of URL parameters.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must implement a function '\n 'to read URL parameters specific to a context/data-source '\n 'and convert that into a context object.'\n ''\n 'NOTE: If there are _no_ parameters, this method should '\n 'return None. This allows us callers to pass only the '\n 'source_context parameter and not have to re-specify '\n 'query parameters on each request. (If this function returns '\n 'a default context, it will likely mismatch with the previous '\n 'version, and the old version will be discarded, losing '\n 'an opportunity for optimizing queries.')\n\n @classmethod\n def save_to_dict(cls, context):\n \"\"\"Convert a context into a simple Python dict.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must provide a method to '\n 'convert a context into a simple dict to permit serialization of '\n 'the context so that it may be encrypted and returned along with '\n 'the rest of the REST response.')\n\n @classmethod\n def build_from_dict(cls, prev_dict):\n \"\"\"Build a context from a dict previously returned by save_to_dict().\"\"\"\n raise NotImplementedError(\n 'When a REST call returns, the save_to_dict() method is called to '\n 'convert the context object into a simple Python dict to permit '\n 'serialization. This is then serialized, encrypted, and '\n 'returned to the caller. On subsequent calls, the caller '\n 'provides the returned context parameter. This is decrypted '\n 'and reified into a dict. This method should convert '\n 'that dict back into a context.')\n\n @classmethod\n def build_blank_default(cls, params, default_chunk_size):\n \"\"\"Build a default version of the context.\"\"\"\n raise NotImplementedError(\n 'When build_from_web_request() returns None, this function is used '\n 'to build a default version of a context.')\n\n @classmethod\n def get_public_params_for_display(cls, context):\n \"\"\"Provide a human-readable version of the context.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must provide a method to '\n 'render a context\\'s main features as a simple Python type '\n '(usually a dict of name/value pairs). This is returned in the '\n 'body of REST responses so that humans can manually inspect and '\n 'verify operation during development.')\n\n @classmethod\n def equivalent(cls, context_one, context_two):\n \"\"\"Tell whether two contexts are equivalent.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must provide a method to '\n 'tell whether two contexts are equivalent. REST requests may '\n 'contain a previously-saved context as well as HTML parameters. '\n 'If the context built from one does not match the context built '\n 'from the other, the old context must be discarded. Note that '\n 'not all fields need to match for contexts to be equivalent; '\n 'only the fields that define the data return need to be '\n 'identical. Any saved state used for optimization need not be '\n '(and will probably not be) present in the HTML parameters.')\n\n\nclass _NullContextManager(_AbstractContextManager):\n \"\"\"An _AbstractContextManager used when a real context is not required.\"\"\"\n\n @classmethod\n def build_from_web_request(cls, params, default_chunk_size):\n return {'null_context': 'null_context'}\n\n @classmethod\n def build_from_dict(cls, prev_dict):\n return {'null_context': 'null_context'}\n\n @classmethod\n def save_to_dict(cls, context):\n return context\n\n @classmethod\n def build_blank_default(cls, params, default_chunk_size):\n return {'null_context': 'null_context'}\n\n @classmethod\n def get_public_params_for_display(cls, context):\n return context\n\n @classmethod\n def equivalent(cls, context_one, context_two):\n return context_one == context_two\n\n\nclass _AbstractSmallRestDataSource(_AbstractRestDataSource):\n \"\"\"Default methods for data source classes not requiring a context.\n\n This is most commonly the case when a REST data source is based on\n a resource that is always going to be small enough to be sent in\n a single page. E.g., items based on course items. There will at\n most be hundreds, or possibly thousands of units, questions, etc.\n This is well within the recommended limit of 10,000.\n \"\"\"\n\n @classmethod\n def get_context_class(cls):\n # Expect at most hundreds of course elements; no need for pagination,\n # so null context is fine.\n return _NullContextManager\n\n @classmethod\n def get_default_chunk_size(cls):\n return 0 # Meaning we don't require or support paginated access.\n"},"vector":{"kind":"list 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0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.7653,\n 0.0027,\n 2,\n 0.9,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.8,\n 0.0133,\n 1,\n 0.16,\n 0.6667,\n 666,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.7973,\n 0.0027,\n 2,\n 0.01,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.8227,\n 0.0213,\n 1,\n 0.16,\n 0.8333,\n 687,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.816,\n 0.0027,\n 2,\n 0,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.8547,\n 0.032,\n 1,\n 0.16,\n 1,\n 612,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.8427,\n 0.0027,\n 2,\n 0.11,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 3,\n 0,\n 0.9107,\n 0.0693,\n 0,\n 0.66,\n 0.875,\n 539,\n 0,\n 6,\n 0,\n 0,\n 416,\n 0,\n 0\n ],\n [\n 8,\n 1,\n 0.88,\n 0.0027,\n 1,\n 0.14,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.8893,\n 0.0053,\n 1,\n 0.14,\n 0.1667,\n 464,\n 0,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.8907,\n 0.0027,\n 2,\n 0.14,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 6,\n 0\n ],\n [\n 2,\n 1,\n 0.9,\n 0.0053,\n 1,\n 0.14,\n 0.3333,\n 549,\n 0,\n 2,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.9013,\n 0.0027,\n 2,\n 0.19,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 6,\n 0\n ],\n [\n 2,\n 1,\n 0.9107,\n 0.0053,\n 1,\n 0.14,\n 0.5,\n 72,\n 0,\n 2,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.912,\n 0.0027,\n 2,\n 0.59,\n 0,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9213,\n 0.0053,\n 1,\n 0.14,\n 0.6667,\n 666,\n 0,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.9227,\n 0.0027,\n 2,\n 0.41,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 6,\n 0\n ],\n [\n 2,\n 1,\n 0.932,\n 0.0053,\n 1,\n 0.14,\n 0.8333,\n 687,\n 0,\n 2,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.9333,\n 0.0027,\n 2,\n 0.98,\n 0,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9427,\n 0.0053,\n 1,\n 0.14,\n 1,\n 612,\n 0,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.944,\n 0.0027,\n 2,\n 0.73,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 3,\n 0,\n 0.976,\n 0.0507,\n 0,\n 0.66,\n 1,\n 438,\n 0,\n 2,\n 0,\n 0,\n 320,\n 0,\n 0\n ],\n [\n 8,\n 1,\n 0.964,\n 0.0213,\n 1,\n 0.48,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9853,\n 0.0107,\n 1,\n 0.48,\n 0.5,\n 260,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.9893,\n 0.0027,\n 2,\n 0.79,\n 0,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9987,\n 0.0053,\n 1,\n 0.48,\n 1,\n 428,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 1,\n 0.0027,\n 2,\n 0.38,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Module providing base types for analytics.\"\"\"","__author__ = 'Mike Gainer (mgainer@google.com)'","import re","class _DataSource(object):\n \"\"\"Common base class for all kinds of data sources.\"\"\"\n\n @staticmethod\n def required_generators():\n \"\"\"Tell what long-running jobs (if any) are required for this source.\n\n Return an array of classes. The empty array is allowed if"," \"\"\"Common base class for all kinds of data sources.\"\"\""," def required_generators():\n \"\"\"Tell what long-running jobs (if any) are required for this source.\n\n Return an array of classes. The empty array is allowed if\n your data source does not depend on any data sources. All\n data sources named must derive from DurableJobBase. When the\n framework calls to the display content generator function, the\n jobs will be provided singly as parameters. E.g., if you"," \"\"\"Tell what long-running jobs (if any) are required for this source.\n\n Return an array of classes. The empty array is allowed if\n your data source does not depend on any data sources. All\n data sources named must derive from DurableJobBase. When the\n framework calls to the display content generator function, the\n jobs will be provided singly as parameters. E.g., if you\n return [FooGenerator, BarGenerator] here, your fill_values"," return []"," def verify_on_registration(cls):\n \"\"\"Override to perform sanity-checking at registration time.\"\"\"\n pass"," \"\"\"Override to perform sanity-checking at registration time.\"\"\"","class _SynchronousQuery(_DataSource):\n \"\"\"Inherit from this class to indicate your data source is synchronous.\n\n By synchronous, we mean that when the dashboard display is\n created, we directly generate HTML from a template and parameters,\n as opposed to asynchronously fetching data up to the page (via\n JavaScript) after the page has loaded."," \"\"\"Inherit from this class to indicate your data source is synchronous.\n\n By synchronous, we mean that when the dashboard display is\n created, we directly generate HTML from a template and parameters,\n as opposed to asynchronously fetching data up to the page (via\n JavaScript) after the page has loaded.\n\n It is OK for a data source to inherit both from SynchronousQuery"," def fill_values(app_context, template_values, required_generator_job_1,\n required_generator_job_2, required_generator_job_N):\n \"\"\"Set key/value strings for use in HTML template expansion.\n\n Args:\n app_context: the context taking the request. This can be used to\n identify the namespace for the request.\n template_values: A hash to be filled in by fill_values. Its"," \"\"\"Set key/value strings for use in HTML template expansion.\n\n Args:\n app_context: the context taking the request. This can be used to\n identify the namespace for the request.\n template_values: A hash to be filled in by fill_values. Its\n contents are provided to the template interpreter. All\n sources used by a single analytic contribute to the same","class _AbstractRestDataSource(_DataSource):\n \"\"\"Provide paginated data supplied to clients via a REST API.\n\n This data source will be served from a REST-style URL. The\n canonical use of this data is to provide raw input to JavaScript\n charting/graphing libraries on the dashboard's analytics page.\n However, the source is available for any authorized user to make\n use of however he sees fit."," \"\"\"Provide paginated data supplied to clients via a REST API.\n\n This data source will be served from a REST-style URL. The\n canonical use of this data is to provide raw input to JavaScript\n charting/graphing libraries on the dashboard's analytics page.\n However, the source is available for any authorized user to make\n use of however he sees fit."," RECOMMENDED_MAX_DATA_ITEMS = 10000"," _rest_data_sources_by_name = {}"," def get_name(cls):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must provide a name '\n 'by which they are known. This name must be composed only '\n 'of lowercase alphabetics, numerics and underscores. (This'\n 'name will, among other uses, be employed to create '\n 'JavaScript identifiers.) Also, this name must be globally '\n 'unique within a CourseBuilder installation.')"," def get_title(cls):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must provide a '\n 'title string for display on web pages. This is used in the '\n 'context of controls to select a particular page.')"," def exportable(cls):\n return False"," return False"," def get_default_chunk_size(cls):\n \"\"\"Tell what the recommended number of items per page is.\n\n This will vary based on the sizes of the items returned. Note that\n this is not an absolute maximum; the UI may request more than this\n value (up to the absolute maximum imposed by App Engine overall\n response size limits)."," \"\"\"Tell what the recommended number of items per page is.\n\n This will vary based on the sizes of the items returned. Note that\n this is not an absolute maximum; the UI may request more than this\n value (up to the absolute maximum imposed by App Engine overall\n response size limits).\n\n This value can be set to zero to indicate that the resource does not"," return cls.RECOMMENDED_MAX_DATA_ITEMS"," def get_context_class(cls):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must provide a class '\n 'inherited from _AbstractContextManager. This class should handle '\n 'building and maintaining a context used for storing '\n 'parameters and optimizations for fetching values. If '\n 'no context is needed, the NullContextManager class may '\n 'be returned from this function.')"," def get_schema(cls, app_context, log, source_context):\n raise NotImplementedError(\n 'Classes derived from _AbstractRestDataSource must be able to '\n 'statically produce a JSON schema describing their typical '\n 'contents. This function must return a dict as produced by '\n 'FieldRegistry.get_json_schema_dict().')"," def fetch_values(cls, app_context, source_context, schema, log,\n page_number, foo_job):\n \"\"\"Provide data to be returned from this source.\n\n This function should return a plain Python array of dicts. (The point\n here is that the data must not require any postprocessing before it is\n converted to a JSON string.)"," \"\"\"Provide data to be returned from this source.\n\n This function should return a plain Python array of dicts. (The point\n here is that the data must not require any postprocessing before it is\n converted to a JSON string.)\n\n Args:\n app_context: The application context for the current request;"," def verify_on_registration(cls):\n source_name = cls.get_name()\n if not re.match('^[_0-9a-z]+$', source_name):\n raise ValueError(\n 'REST data source name \"%s\" ' % source_name +\n 'must contain only lowercase letters, '\n 'numbers or underscore characters')\n other_class = cls._rest_data_sources_by_name.get("," source_name = cls.get_name()"," if not re.match('^[_0-9a-z]+$', source_name):\n raise ValueError(\n 'REST data source name \"%s\" ' % source_name +\n 'must contain only lowercase letters, '\n 'numbers or underscore characters')"," other_class = cls._rest_data_sources_by_name.get(\n source_name, None)"," if other_class:\n raise ValueError(\n 'Error: the name \"%s\" ' % source_name +\n 'is already registered to the class ' +\n '%s' % other_class.__module__ +\n '.%s' % other_class.__name__ +\n '; you cannot register '\n '%s' % cls.__module__ +","class _AbstractContextManager(object):\n \"\"\"Interface for managing contexts used by _AbstractRestDataSource types.\n\n When a REST request is made, a context is returned along with the data and\n other items. Subsequent REST requests should provide the context object.\n This permits the data fetching class to retain state across operations.\n Generally, a _AbstractContextManager type will be quite specific to the\n type of _AbstractRestDataSource. However, the responsibilities of context"," \"\"\"Interface for managing contexts used by _AbstractRestDataSource types.\n\n When a REST request is made, a context is returned along with the data and\n other items. Subsequent REST requests should provide the context object.\n This permits the data fetching class to retain state across operations.\n Generally, a _AbstractContextManager type will be quite specific to the\n type of _AbstractRestDataSource. However, the responsibilities of context\n management are quite specific and thus these are separated into a distinct"," def build_from_web_request(cls, params, default_chunk_size):\n \"\"\"Build a context instance given a set of URL parameters.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must implement a function '\n 'to read URL parameters specific to a context/data-source '\n 'and convert that into a context object.'\n ''\n 'NOTE: If there are _no_ parameters, this method should '"," \"\"\"Build a context instance given a set of URL parameters.\"\"\""," def save_to_dict(cls, context):\n \"\"\"Convert a context into a simple Python dict.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must provide a method to '\n 'convert a context into a simple dict to permit serialization of '\n 'the context so that it may be encrypted and returned along with '\n 'the rest of the REST response.')"," \"\"\"Convert a context into a simple Python dict.\"\"\""," def build_from_dict(cls, prev_dict):\n \"\"\"Build a context from a dict previously returned by save_to_dict().\"\"\"\n raise NotImplementedError(\n 'When a REST call returns, the save_to_dict() method is called to '\n 'convert the context object into a simple Python dict to permit '\n 'serialization. This is then serialized, encrypted, and '\n 'returned to the caller. On subsequent calls, the caller '\n 'provides the returned context parameter. This is decrypted '"," \"\"\"Build a context from a dict previously returned by save_to_dict().\"\"\""," def build_blank_default(cls, params, default_chunk_size):\n \"\"\"Build a default version of the context.\"\"\"\n raise NotImplementedError(\n 'When build_from_web_request() returns None, this function is used '\n 'to build a default version of a context.')"," \"\"\"Build a default version of the context.\"\"\""," def get_public_params_for_display(cls, context):\n \"\"\"Provide a human-readable version of the context.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must provide a method to '\n 'render a context\\'s main features as a simple Python type '\n '(usually a dict of name/value pairs). This is returned in the '\n 'body of REST responses so that humans can manually inspect and '\n 'verify operation during development.')"," \"\"\"Provide a human-readable version of the context.\"\"\""," def equivalent(cls, context_one, context_two):\n \"\"\"Tell whether two contexts are equivalent.\"\"\"\n raise NotImplementedError(\n 'Subclasses of _AbstractContextManager must provide a method to '\n 'tell whether two contexts are equivalent. REST requests may '\n 'contain a previously-saved context as well as HTML parameters. '\n 'If the context built from one does not match the context built '\n 'from the other, the old context must be discarded. Note that '"," \"\"\"Tell whether two contexts are equivalent.\"\"\"","class _NullContextManager(_AbstractContextManager):\n \"\"\"An _AbstractContextManager used when a real context is not required.\"\"\"\n\n @classmethod\n def build_from_web_request(cls, params, default_chunk_size):\n return {'null_context': 'null_context'}\n\n @classmethod"," \"\"\"An _AbstractContextManager used when a real context is not required.\"\"\""," def build_from_web_request(cls, params, default_chunk_size):\n return {'null_context': 'null_context'}"," return {'null_context': 'null_context'}"," def build_from_dict(cls, prev_dict):\n return {'null_context': 'null_context'}"," return {'null_context': 'null_context'}"," def save_to_dict(cls, context):\n return context"," return context"," def build_blank_default(cls, params, default_chunk_size):\n return {'null_context': 'null_context'}"," return {'null_context': 'null_context'}"," def get_public_params_for_display(cls, context):\n return context"," return context"," def equivalent(cls, context_one, context_two):\n return context_one == context_two"," return context_one == context_two","class _AbstractSmallRestDataSource(_AbstractRestDataSource):\n \"\"\"Default methods for data source classes not requiring a context.\n\n This is most commonly the case when a REST data source is based on\n a resource that is always going to be small enough to be sent in\n a single page. E.g., items based on course items. There will at\n most be hundreds, or possibly thousands of units, questions, etc.\n This is well within the recommended limit of 10,000."," \"\"\"Default methods for data source classes not requiring a context.\n\n This is most commonly the case when a REST data source is based on\n a resource that is always going to be small enough to be sent in\n a single page. E.g., items based on course items. There will at\n most be hundreds, or possibly thousands of units, questions, etc.\n This is well within the recommended limit of 10,000.\n \"\"\""," def get_context_class(cls):\n # Expect at most hundreds of course elements; no need for pagination,\n # so null context is fine.\n return _NullContextManager"," return _NullContextManager"," def get_default_chunk_size(cls):\n return 0 # Meaning we don't require or support paginated access."," return 0 # Meaning we don't require or support paginated access."],"string":"[\n \"\\\"\\\"\\\"Module providing base types for analytics.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"import re\",\n \"class _DataSource(object):\\n \\\"\\\"\\\"Common base class for all kinds of data sources.\\\"\\\"\\\"\\n\\n @staticmethod\\n def required_generators():\\n \\\"\\\"\\\"Tell what long-running jobs (if any) are required for this source.\\n\\n Return an array of classes. The empty array is allowed if\",\n \" \\\"\\\"\\\"Common base class for all kinds of data sources.\\\"\\\"\\\"\",\n \" def required_generators():\\n \\\"\\\"\\\"Tell what long-running jobs (if any) are required for this source.\\n\\n Return an array of classes. The empty array is allowed if\\n your data source does not depend on any data sources. All\\n data sources named must derive from DurableJobBase. When the\\n framework calls to the display content generator function, the\\n jobs will be provided singly as parameters. E.g., if you\",\n \" \\\"\\\"\\\"Tell what long-running jobs (if any) are required for this source.\\n\\n Return an array of classes. The empty array is allowed if\\n your data source does not depend on any data sources. All\\n data sources named must derive from DurableJobBase. When the\\n framework calls to the display content generator function, the\\n jobs will be provided singly as parameters. E.g., if you\\n return [FooGenerator, BarGenerator] here, your fill_values\",\n \" return []\",\n \" def verify_on_registration(cls):\\n \\\"\\\"\\\"Override to perform sanity-checking at registration time.\\\"\\\"\\\"\\n pass\",\n \" \\\"\\\"\\\"Override to perform sanity-checking at registration time.\\\"\\\"\\\"\",\n \"class _SynchronousQuery(_DataSource):\\n \\\"\\\"\\\"Inherit from this class to indicate your data source is synchronous.\\n\\n By synchronous, we mean that when the dashboard display is\\n created, we directly generate HTML from a template and parameters,\\n as opposed to asynchronously fetching data up to the page (via\\n JavaScript) after the page has loaded.\",\n \" \\\"\\\"\\\"Inherit from this class to indicate your data source is synchronous.\\n\\n By synchronous, we mean that when the dashboard display is\\n created, we directly generate HTML from a template and parameters,\\n as opposed to asynchronously fetching data up to the page (via\\n JavaScript) after the page has loaded.\\n\\n It is OK for a data source to inherit both from SynchronousQuery\",\n \" def fill_values(app_context, template_values, required_generator_job_1,\\n required_generator_job_2, required_generator_job_N):\\n \\\"\\\"\\\"Set key/value strings for use in HTML template expansion.\\n\\n Args:\\n app_context: the context taking the request. This can be used to\\n identify the namespace for the request.\\n template_values: A hash to be filled in by fill_values. Its\",\n \" \\\"\\\"\\\"Set key/value strings for use in HTML template expansion.\\n\\n Args:\\n app_context: the context taking the request. This can be used to\\n identify the namespace for the request.\\n template_values: A hash to be filled in by fill_values. Its\\n contents are provided to the template interpreter. All\\n sources used by a single analytic contribute to the same\",\n \"class _AbstractRestDataSource(_DataSource):\\n \\\"\\\"\\\"Provide paginated data supplied to clients via a REST API.\\n\\n This data source will be served from a REST-style URL. The\\n canonical use of this data is to provide raw input to JavaScript\\n charting/graphing libraries on the dashboard's analytics page.\\n However, the source is available for any authorized user to make\\n use of however he sees fit.\",\n \" \\\"\\\"\\\"Provide paginated data supplied to clients via a REST API.\\n\\n This data source will be served from a REST-style URL. The\\n canonical use of this data is to provide raw input to JavaScript\\n charting/graphing libraries on the dashboard's analytics page.\\n However, the source is available for any authorized user to make\\n use of however he sees fit.\",\n \" RECOMMENDED_MAX_DATA_ITEMS = 10000\",\n \" _rest_data_sources_by_name = {}\",\n \" def get_name(cls):\\n raise NotImplementedError(\\n 'Classes derived from _AbstractRestDataSource must provide a name '\\n 'by which they are known. This name must be composed only '\\n 'of lowercase alphabetics, numerics and underscores. (This'\\n 'name will, among other uses, be employed to create '\\n 'JavaScript identifiers.) Also, this name must be globally '\\n 'unique within a CourseBuilder installation.')\",\n \" def get_title(cls):\\n raise NotImplementedError(\\n 'Classes derived from _AbstractRestDataSource must provide a '\\n 'title string for display on web pages. This is used in the '\\n 'context of controls to select a particular page.')\",\n \" def exportable(cls):\\n return False\",\n \" return False\",\n \" def get_default_chunk_size(cls):\\n \\\"\\\"\\\"Tell what the recommended number of items per page is.\\n\\n This will vary based on the sizes of the items returned. Note that\\n this is not an absolute maximum; the UI may request more than this\\n value (up to the absolute maximum imposed by App Engine overall\\n response size limits).\",\n \" \\\"\\\"\\\"Tell what the recommended number of items per page is.\\n\\n This will vary based on the sizes of the items returned. Note that\\n this is not an absolute maximum; the UI may request more than this\\n value (up to the absolute maximum imposed by App Engine overall\\n response size limits).\\n\\n This value can be set to zero to indicate that the resource does not\",\n \" return cls.RECOMMENDED_MAX_DATA_ITEMS\",\n \" def get_context_class(cls):\\n raise NotImplementedError(\\n 'Classes derived from _AbstractRestDataSource must provide a class '\\n 'inherited from _AbstractContextManager. This class should handle '\\n 'building and maintaining a context used for storing '\\n 'parameters and optimizations for fetching values. If '\\n 'no context is needed, the NullContextManager class may '\\n 'be returned from this function.')\",\n \" def get_schema(cls, app_context, log, source_context):\\n raise NotImplementedError(\\n 'Classes derived from _AbstractRestDataSource must be able to '\\n 'statically produce a JSON schema describing their typical '\\n 'contents. This function must return a dict as produced by '\\n 'FieldRegistry.get_json_schema_dict().')\",\n \" def fetch_values(cls, app_context, source_context, schema, log,\\n page_number, foo_job):\\n \\\"\\\"\\\"Provide data to be returned from this source.\\n\\n This function should return a plain Python array of dicts. (The point\\n here is that the data must not require any postprocessing before it is\\n converted to a JSON string.)\",\n \" \\\"\\\"\\\"Provide data to be returned from this source.\\n\\n This function should return a plain Python array of dicts. (The point\\n here is that the data must not require any postprocessing before it is\\n converted to a JSON string.)\\n\\n Args:\\n app_context: The application context for the current request;\",\n \" def verify_on_registration(cls):\\n source_name = cls.get_name()\\n if not re.match('^[_0-9a-z]+$', source_name):\\n raise ValueError(\\n 'REST data source name \\\"%s\\\" ' % source_name +\\n 'must contain only lowercase letters, '\\n 'numbers or underscore characters')\\n other_class = cls._rest_data_sources_by_name.get(\",\n \" source_name = cls.get_name()\",\n \" if not re.match('^[_0-9a-z]+$', source_name):\\n raise ValueError(\\n 'REST data source name \\\"%s\\\" ' % source_name +\\n 'must contain only lowercase letters, '\\n 'numbers or underscore characters')\",\n \" other_class = cls._rest_data_sources_by_name.get(\\n source_name, None)\",\n \" if other_class:\\n raise ValueError(\\n 'Error: the name \\\"%s\\\" ' % source_name +\\n 'is already registered to the class ' +\\n '%s' % other_class.__module__ +\\n '.%s' % other_class.__name__ +\\n '; you cannot register '\\n '%s' % cls.__module__ +\",\n \"class _AbstractContextManager(object):\\n \\\"\\\"\\\"Interface for managing contexts used by _AbstractRestDataSource types.\\n\\n When a REST request is made, a context is returned along with the data and\\n other items. Subsequent REST requests should provide the context object.\\n This permits the data fetching class to retain state across operations.\\n Generally, a _AbstractContextManager type will be quite specific to the\\n type of _AbstractRestDataSource. However, the responsibilities of context\",\n \" \\\"\\\"\\\"Interface for managing contexts used by _AbstractRestDataSource types.\\n\\n When a REST request is made, a context is returned along with the data and\\n other items. Subsequent REST requests should provide the context object.\\n This permits the data fetching class to retain state across operations.\\n Generally, a _AbstractContextManager type will be quite specific to the\\n type of _AbstractRestDataSource. However, the responsibilities of context\\n management are quite specific and thus these are separated into a distinct\",\n \" def build_from_web_request(cls, params, default_chunk_size):\\n \\\"\\\"\\\"Build a context instance given a set of URL parameters.\\\"\\\"\\\"\\n raise NotImplementedError(\\n 'Subclasses of _AbstractContextManager must implement a function '\\n 'to read URL parameters specific to a context/data-source '\\n 'and convert that into a context object.'\\n ''\\n 'NOTE: If there are _no_ parameters, this method should '\",\n \" \\\"\\\"\\\"Build a context instance given a set of URL parameters.\\\"\\\"\\\"\",\n \" def save_to_dict(cls, context):\\n \\\"\\\"\\\"Convert a context into a simple Python dict.\\\"\\\"\\\"\\n raise NotImplementedError(\\n 'Subclasses of _AbstractContextManager must provide a method to '\\n 'convert a context into a simple dict to permit serialization of '\\n 'the context so that it may be encrypted and returned along with '\\n 'the rest of the REST response.')\",\n \" \\\"\\\"\\\"Convert a context into a simple Python dict.\\\"\\\"\\\"\",\n \" def build_from_dict(cls, prev_dict):\\n \\\"\\\"\\\"Build a context from a dict previously returned by save_to_dict().\\\"\\\"\\\"\\n raise NotImplementedError(\\n 'When a REST call returns, the save_to_dict() method is called to '\\n 'convert the context object into a simple Python dict to permit '\\n 'serialization. This is then serialized, encrypted, and '\\n 'returned to the caller. On subsequent calls, the caller '\\n 'provides the returned context parameter. This is decrypted '\",\n \" \\\"\\\"\\\"Build a context from a dict previously returned by save_to_dict().\\\"\\\"\\\"\",\n \" def build_blank_default(cls, params, default_chunk_size):\\n \\\"\\\"\\\"Build a default version of the context.\\\"\\\"\\\"\\n raise NotImplementedError(\\n 'When build_from_web_request() returns None, this function is used '\\n 'to build a default version of a context.')\",\n \" \\\"\\\"\\\"Build a default version of the context.\\\"\\\"\\\"\",\n \" def get_public_params_for_display(cls, context):\\n \\\"\\\"\\\"Provide a human-readable version of the context.\\\"\\\"\\\"\\n raise NotImplementedError(\\n 'Subclasses of _AbstractContextManager must provide a method to '\\n 'render a context\\\\'s main features as a simple Python type '\\n '(usually a dict of name/value pairs). This is returned in the '\\n 'body of REST responses so that humans can manually inspect and '\\n 'verify operation during development.')\",\n \" \\\"\\\"\\\"Provide a human-readable version of the context.\\\"\\\"\\\"\",\n \" def equivalent(cls, context_one, context_two):\\n \\\"\\\"\\\"Tell whether two contexts are equivalent.\\\"\\\"\\\"\\n raise NotImplementedError(\\n 'Subclasses of _AbstractContextManager must provide a method to '\\n 'tell whether two contexts are equivalent. REST requests may '\\n 'contain a previously-saved context as well as HTML parameters. '\\n 'If the context built from one does not match the context built '\\n 'from the other, the old context must be discarded. Note that '\",\n \" \\\"\\\"\\\"Tell whether two contexts are equivalent.\\\"\\\"\\\"\",\n \"class _NullContextManager(_AbstractContextManager):\\n \\\"\\\"\\\"An _AbstractContextManager used when a real context is not required.\\\"\\\"\\\"\\n\\n @classmethod\\n def build_from_web_request(cls, params, default_chunk_size):\\n return {'null_context': 'null_context'}\\n\\n @classmethod\",\n \" \\\"\\\"\\\"An _AbstractContextManager used when a real context is not required.\\\"\\\"\\\"\",\n \" def build_from_web_request(cls, params, default_chunk_size):\\n return {'null_context': 'null_context'}\",\n \" return {'null_context': 'null_context'}\",\n \" def build_from_dict(cls, prev_dict):\\n return {'null_context': 'null_context'}\",\n \" return {'null_context': 'null_context'}\",\n \" def save_to_dict(cls, context):\\n return context\",\n \" return context\",\n \" def build_blank_default(cls, params, default_chunk_size):\\n return {'null_context': 'null_context'}\",\n \" return {'null_context': 'null_context'}\",\n \" def get_public_params_for_display(cls, context):\\n return context\",\n \" return context\",\n \" def equivalent(cls, context_one, context_two):\\n return context_one == context_two\",\n \" return context_one == context_two\",\n \"class _AbstractSmallRestDataSource(_AbstractRestDataSource):\\n \\\"\\\"\\\"Default methods for data source classes not requiring a context.\\n\\n This is most commonly the case when a REST data source is based on\\n a resource that is always going to be small enough to be sent in\\n a single page. E.g., items based on course items. There will at\\n most be hundreds, or possibly thousands of units, questions, etc.\\n This is well within the recommended limit of 10,000.\",\n \" \\\"\\\"\\\"Default methods for data source classes not requiring a context.\\n\\n This is most commonly the case when a REST data source is based on\\n a resource that is always going to be small enough to be sent in\\n a single page. E.g., items based on course items. There will at\\n most be hundreds, or possibly thousands of units, questions, etc.\\n This is well within the recommended limit of 10,000.\\n \\\"\\\"\\\"\",\n \" def get_context_class(cls):\\n # Expect at most hundreds of course elements; no need for pagination,\\n # so null context is fine.\\n return _NullContextManager\",\n \" return _NullContextManager\",\n \" def get_default_chunk_size(cls):\\n return 0 # Meaning we don't require or support paginated access.\",\n \" return 0 # Meaning we don't require or support paginated access.\"\n]","isConversational":false}}},{"rowIdx":4786,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Generic webapp2 handler for REST data sources.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nfrom common import catch_and_log\nfrom common import crypto\nfrom controllers import utils\nfrom models import roles\nfrom models import transforms\nfrom models.data_sources import utils as data_sources_utils\n\n\nclass _AbstractRestDataSourceHandler(utils.ApplicationHandler):\n \"\"\"Webapp2 handler for REST data sources.\n\n This class must be derived from to override the get_data_source_class()\n method. This should be done only from analytics.py's registration-time\n functions which take care of registering URLs to serve REST resources\n (which is why this class is marked private).\n\n The responsibilities of this class are to provide a standardized interface\n which accepts URL parameters to identify resources, and JSON output to\n feed external clients. It is expected that a very common use case for\n clients is the visual display of information on dashboard pages. This,\n however, should in no way preclude the use of this interface to gain\n access to paginated versions of data held within CourseBuilder.\n\n Data source types supported are defined by the\n base_types.AbstractRestDataSource and base_types.ContextManager\n interface, which this class uses to accomplish its task.\n\n All AbstractRestDataSource URLs have one parameter in common:\n page_number=<N>: Specify which page of data is wanted. This is\n zero-based. Not all AbstractRestDataSource implementations have an\n easy way to know which is the last page until its data is fetched.\n Further, the \"last\" page may not always be last -- over time,\n more data may accumulate in the store being accessed.\n If this value is not provided, it is assumed to be zero.\n \"\"\"\n\n @classmethod\n def get_data_source_class(cls):\n raise NotImplementedError(\n '_RestDataSourceHandler is a base class; derived classes '\n 'must implement the get_data_source_class() method to tell the '\n 'base class the type of the DB table it is to wrap.')\n\n def get(self):\n \"\"\"Returns a JSON response with a page of data and meta-information.\n\n The object contains the following fields:\n data: Data objects from the object.\n log: Entries made with a base_types.Log object. These contain:\n timestamp: Stringified version of the GMT time of the event\n level: one of 'severe', 'warning', or 'info'\n message: A string describing the event.\n schema: A JSON schema describing the names and types of objects\n in the 'data' payload.\n params: A dictionary containing an echo of the context parameters\n passed in. These are specific to the sub-type of REST data source.\n source_context: Any context that the REST data source wishes to\n retain across multiple calls to the same REST object. It is\n not strictly required to re-send this into subsequent requests\n (as a parameter named 'source_context'), but doing so will provide\n significant performance improvements. Note that if you are sending\n a 'source_context' parameter, it is not necessary to re-specify\n the set of parameters defining your query each time; these are\n retained in the context. If you pass parameters which do not\n exactly match those in the source_context, the source_context\n is not used, and a new version with your new parameters is returned.\n \"\"\"\n\n if (not roles.Roles.is_super_admin() and\n not roles.Roles.is_course_admin(self.app_context)):\n self.response.set_status(403)\n self.response.write('Forbidden')\n return\n\n catch_and_log_ = catch_and_log.CatchAndLog()\n data_source_class = self.get_data_source_class()\n context_class = data_source_class.get_context_class()\n page_number = int(self.request.get('page_number') or '0')\n\n output = {}\n source_context = None\n schema = None\n jobz = None\n with catch_and_log_.consume_exceptions('Building parameters'):\n source_context = self._get_source_context(\n data_source_class.get_default_chunk_size(), catch_and_log_)\n with catch_and_log_.consume_exceptions('Getting data schema'):\n schema = data_source_class.get_schema(\n self.app_context, catch_and_log_, source_context)\n output['schema'] = schema\n with catch_and_log_.consume_exceptions('Loading required job output'):\n jobz = data_sources_utils.get_required_jobs(\n data_source_class, self.app_context, catch_and_log_)\n if source_context and schema and jobz is not None:\n with catch_and_log_.consume_exceptions('Fetching results data'):\n data, page_number = data_source_class.fetch_values(\n self.app_context, source_context, schema, catch_and_log_,\n page_number, *jobz)\n output['data'] = data\n output['page_number'] = page_number\n with catch_and_log_.consume_exceptions('Encoding context'):\n output['source_context'] = self._encode_context(source_context)\n output['params'] = context_class.get_public_params_for_display(\n source_context)\n output['log'] = catch_and_log_.get()\n output['source'] = data_source_class.get_name()\n\n self.response.headers['Content-Type'] = (\n 'application/javascript; charset=utf-8')\n self.response.headers['X-Content-Type-Options'] = 'nosniff'\n self.response.headers['Content-Disposition'] = 'attachment'\n self.response.write(transforms.JSON_XSSI_PREFIX +\n transforms.dumps(output))\n\n def _encode_context(self, source_context):\n \"\"\"Save context as opaque string for use as arg to next call.\"\"\"\n context_class = self.get_data_source_class().get_context_class()\n context_dict = context_class.save_to_dict(source_context)\n plaintext_context = transforms.dumps(context_dict)\n return crypto.EncryptionManager.encrypt_to_urlsafe_ciphertext(\n plaintext_context)\n\n def _get_source_context(self, default_chunk_size, catch_and_log_):\n \"\"\"Decide whether to use pre-built context or make a new one.\n\n Callers to this interface may provide source-specific parameters to\n indicate what portion of the data source they are interested in, or\n pass in a pre-built context (as returned from _encode_context, above)\n returned by a previous request, or both.\n\n The preference is to use the encoded context, as long as it is\n provided and it is compatible with the individual source selection\n arguments which may be present. This is done because the context\n may contain additional information that allows more efficient\n processing.\n\n Args:\n default_chunk_size: Recommended maximum number of data items\n in a page from the data_source.\n catch_and_log_: An object which is used to convert exceptions\n into messages returned to our REST client, and can also be\n used for informational annotations on progress.\n Returns:\n context object common to many functions involved in generating\n a data flow's JSON result.\n \"\"\"\n context_class = self.get_data_source_class().get_context_class()\n new_context = context_class.build_from_web_request(self.request,\n default_chunk_size)\n existing_context = None\n with catch_and_log_.consume_exceptions('Problem decrypting context'):\n existing_context = self._get_existing_context(context_class)\n\n ret = None\n if new_context and not existing_context:\n catch_and_log_.info('Creating new context for given parameters')\n ret = new_context\n elif existing_context and not new_context:\n catch_and_log_.info('Continuing use of existing context')\n ret = existing_context\n elif not new_context and not existing_context:\n catch_and_log_.info('Building new default context')\n ret = context_class.build_blank_default(self.request,\n default_chunk_size)\n elif not context_class.equivalent(new_context, existing_context):\n catch_and_log_.info(\n 'Existing context and parameters mismatch; discarding '\n 'existing and creating new context.')\n ret = new_context\n else:\n catch_and_log_.info(\n 'Existing context matches parameters; using existing context')\n ret = existing_context\n return ret\n\n def _get_existing_context(self, context_class):\n \"\"\"Obtain and decode existing context, if present.\"\"\"\n context_param = self.request.get('source_context')\n if not context_param:\n return None\n\n plaintext_context = (\n crypto.EncryptionManager.decrypt_from_urlsafe_ciphertext(\n str(context_param)))\n dict_context = transforms.loads(plaintext_context)\n return context_class.build_from_dict(dict_context)\n"},"vector":{"kind":"list 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controllers import utils","from models import roles","from models import transforms","from models.data_sources import utils as data_sources_utils","class _AbstractRestDataSourceHandler(utils.ApplicationHandler):\n \"\"\"Webapp2 handler for REST data sources.\n\n This class must be derived from to override the get_data_source_class()\n method. This should be done only from analytics.py's registration-time\n functions which take care of registering URLs to serve REST resources\n (which is why this class is marked private)."," \"\"\"Webapp2 handler for REST data sources.\n\n This class must be derived from to override the get_data_source_class()\n method. This should be done only from analytics.py's registration-time\n functions which take care of registering URLs to serve REST resources\n (which is why this class is marked private).\n\n The responsibilities of this class are to provide a standardized interface"," def get_data_source_class(cls):\n raise NotImplementedError(\n '_RestDataSourceHandler is a base class; derived classes '\n 'must implement the get_data_source_class() method to tell the '\n 'base class the type of the DB table it is to wrap.')"," def get(self):\n \"\"\"Returns a JSON response with a page of data and meta-information.\n\n The object contains the following fields:\n data: Data objects from the object.\n log: Entries made with a base_types.Log object. These contain:\n timestamp: Stringified version of the GMT time of the event\n level: one of 'severe', 'warning', or 'info'"," \"\"\"Returns a JSON response with a page of data and meta-information.\n\n The object contains the following fields:\n data: Data objects from the object.\n log: Entries made with a base_types.Log object. These contain:\n timestamp: Stringified version of the GMT time of the event\n level: one of 'severe', 'warning', or 'info'\n message: A string describing the event."," if (not roles.Roles.is_super_admin() and\n not roles.Roles.is_course_admin(self.app_context)):\n self.response.set_status(403)\n self.response.write('Forbidden')\n return"," self.response.set_status(403)"," self.response.write('Forbidden')"," return"," catch_and_log_ = catch_and_log.CatchAndLog()"," data_source_class = self.get_data_source_class()"," context_class = data_source_class.get_context_class()"," page_number = int(self.request.get('page_number') or '0')"," output = {}"," source_context = None"," schema = None"," jobz = None"," source_context = self._get_source_context(\n data_source_class.get_default_chunk_size(), catch_and_log_)"," schema = data_source_class.get_schema(\n self.app_context, catch_and_log_, source_context)"," output['schema'] = schema"," jobz = data_sources_utils.get_required_jobs(\n data_source_class, self.app_context, catch_and_log_)"," if source_context and schema and jobz is not None:\n with catch_and_log_.consume_exceptions('Fetching results data'):\n data, page_number = data_source_class.fetch_values(\n self.app_context, source_context, schema, catch_and_log_,\n page_number, *jobz)\n output['data'] = data\n output['page_number'] = page_number\n with catch_and_log_.consume_exceptions('Encoding context'):"," data, page_number = data_source_class.fetch_values(\n self.app_context, source_context, schema, catch_and_log_,\n page_number, *jobz)"," output['data'] = data"," output['page_number'] = page_number"," output['source_context'] = self._encode_context(source_context)"," output['params'] = context_class.get_public_params_for_display(\n source_context)"," output['log'] = catch_and_log_.get()"," output['source'] = data_source_class.get_name()"," self.response.headers['Content-Type'] = (\n 'application/javascript; charset=utf-8')"," self.response.headers['X-Content-Type-Options'] = 'nosniff'"," self.response.headers['Content-Disposition'] = 'attachment'"," self.response.write(transforms.JSON_XSSI_PREFIX +\n transforms.dumps(output))"," def _encode_context(self, source_context):\n \"\"\"Save context as opaque string for use as arg to next call.\"\"\"\n context_class = self.get_data_source_class().get_context_class()\n context_dict = context_class.save_to_dict(source_context)\n plaintext_context = transforms.dumps(context_dict)\n return crypto.EncryptionManager.encrypt_to_urlsafe_ciphertext(\n plaintext_context)"," \"\"\"Save context as opaque string for use as arg to next call.\"\"\""," context_class = self.get_data_source_class().get_context_class()"," context_dict = context_class.save_to_dict(source_context)"," plaintext_context = transforms.dumps(context_dict)"," return crypto.EncryptionManager.encrypt_to_urlsafe_ciphertext(\n plaintext_context)"," def _get_source_context(self, default_chunk_size, catch_and_log_):\n \"\"\"Decide whether to use pre-built context or make a new one.\n\n Callers to this interface may provide source-specific parameters to\n indicate what portion of the data source they are interested in, or\n pass in a pre-built context (as returned from _encode_context, above)\n returned by a previous request, or both."," \"\"\"Decide whether to use pre-built context or make a new one.\n\n Callers to this interface may provide source-specific parameters to\n indicate what portion of the data source they are interested in, or\n pass in a pre-built context (as returned from _encode_context, above)\n returned by a previous request, or both.\n\n The preference is to use the encoded context, as long as it is"," context_class = self.get_data_source_class().get_context_class()"," new_context = context_class.build_from_web_request(self.request,\n default_chunk_size)"," existing_context = None"," existing_context = self._get_existing_context(context_class)"," ret = None"," if new_context and not existing_context:\n catch_and_log_.info('Creating new context for given parameters')\n ret = new_context\n elif existing_context and not new_context:\n catch_and_log_.info('Continuing use of existing context')\n ret = existing_context\n elif not new_context and not existing_context:\n catch_and_log_.info('Building new default context')"," catch_and_log_.info('Creating new context for given parameters')"," ret = new_context"," elif existing_context and not new_context:\n catch_and_log_.info('Continuing use of existing context')\n ret = existing_context\n elif not new_context and not existing_context:\n catch_and_log_.info('Building new default context')\n ret = context_class.build_blank_default(self.request,\n default_chunk_size)\n elif not context_class.equivalent(new_context, existing_context):"," catch_and_log_.info('Continuing use of existing context')"," ret = existing_context"," elif not new_context and not existing_context:\n catch_and_log_.info('Building new default context')\n ret = context_class.build_blank_default(self.request,\n default_chunk_size)\n elif not context_class.equivalent(new_context, existing_context):\n catch_and_log_.info(\n 'Existing context and parameters mismatch; discarding '\n 'existing and creating new context.')"," catch_and_log_.info('Building new default context')"," ret = context_class.build_blank_default(self.request,\n default_chunk_size)"," elif not context_class.equivalent(new_context, existing_context):\n catch_and_log_.info(\n 'Existing context and parameters mismatch; discarding '\n 'existing and creating new context.')\n ret = new_context\n else:\n catch_and_log_.info(\n 'Existing context matches parameters; using existing context')"," catch_and_log_.info(\n 'Existing context and parameters mismatch; discarding '\n 'existing and creating new context.')"," ret = new_context"," catch_and_log_.info(\n 'Existing context matches parameters; using existing context')"," ret = existing_context"," return ret"," def _get_existing_context(self, context_class):\n \"\"\"Obtain and decode existing context, if present.\"\"\"\n context_param = self.request.get('source_context')\n if not context_param:\n return None\n\n plaintext_context = (\n crypto.EncryptionManager.decrypt_from_urlsafe_ciphertext("," \"\"\"Obtain and decode existing context, if present.\"\"\""," context_param = self.request.get('source_context')"," if not context_param:\n return None"," return None"," plaintext_context = (\n crypto.EncryptionManager.decrypt_from_urlsafe_ciphertext(\n str(context_param)))"," dict_context = transforms.loads(plaintext_context)"," return context_class.build_from_dict(dict_context)"],"string":"[\n \"\\\"\\\"\\\"Generic webapp2 handler for REST data sources.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"from common import catch_and_log\",\n \"from common import crypto\",\n \"from controllers import utils\",\n \"from models import roles\",\n \"from models import transforms\",\n \"from models.data_sources import utils as data_sources_utils\",\n \"class _AbstractRestDataSourceHandler(utils.ApplicationHandler):\\n \\\"\\\"\\\"Webapp2 handler for REST data sources.\\n\\n This class must be derived from to override the get_data_source_class()\\n method. This should be done only from analytics.py's registration-time\\n functions which take care of registering URLs to serve REST resources\\n (which is why this class is marked private).\",\n \" \\\"\\\"\\\"Webapp2 handler for REST data sources.\\n\\n This class must be derived from to override the get_data_source_class()\\n method. This should be done only from analytics.py's registration-time\\n functions which take care of registering URLs to serve REST resources\\n (which is why this class is marked private).\\n\\n The responsibilities of this class are to provide a standardized interface\",\n \" def get_data_source_class(cls):\\n raise NotImplementedError(\\n '_RestDataSourceHandler is a base class; derived classes '\\n 'must implement the get_data_source_class() method to tell the '\\n 'base class the type of the DB table it is to wrap.')\",\n \" def get(self):\\n \\\"\\\"\\\"Returns a JSON response with a page of data and meta-information.\\n\\n The object contains the following fields:\\n data: Data objects from the object.\\n log: Entries made with a base_types.Log object. These contain:\\n timestamp: Stringified version of the GMT time of the event\\n level: one of 'severe', 'warning', or 'info'\",\n \" \\\"\\\"\\\"Returns a JSON response with a page of data and meta-information.\\n\\n The object contains the following fields:\\n data: Data objects from the object.\\n log: Entries made with a base_types.Log object. These contain:\\n timestamp: Stringified version of the GMT time of the event\\n level: one of 'severe', 'warning', or 'info'\\n message: A string describing the event.\",\n \" if (not roles.Roles.is_super_admin() and\\n not roles.Roles.is_course_admin(self.app_context)):\\n self.response.set_status(403)\\n self.response.write('Forbidden')\\n return\",\n \" self.response.set_status(403)\",\n \" self.response.write('Forbidden')\",\n \" return\",\n \" catch_and_log_ = catch_and_log.CatchAndLog()\",\n \" data_source_class = self.get_data_source_class()\",\n \" context_class = data_source_class.get_context_class()\",\n \" page_number = int(self.request.get('page_number') or '0')\",\n \" output = {}\",\n \" source_context = None\",\n \" schema = None\",\n \" jobz = None\",\n \" source_context = self._get_source_context(\\n data_source_class.get_default_chunk_size(), catch_and_log_)\",\n \" schema = data_source_class.get_schema(\\n self.app_context, catch_and_log_, source_context)\",\n \" output['schema'] = schema\",\n \" jobz = data_sources_utils.get_required_jobs(\\n data_source_class, self.app_context, catch_and_log_)\",\n \" if source_context and schema and jobz is not None:\\n with catch_and_log_.consume_exceptions('Fetching results data'):\\n data, page_number = data_source_class.fetch_values(\\n self.app_context, source_context, schema, catch_and_log_,\\n page_number, *jobz)\\n output['data'] = data\\n output['page_number'] = page_number\\n with catch_and_log_.consume_exceptions('Encoding context'):\",\n \" data, page_number = data_source_class.fetch_values(\\n self.app_context, source_context, schema, catch_and_log_,\\n page_number, *jobz)\",\n \" output['data'] = data\",\n \" output['page_number'] = page_number\",\n \" output['source_context'] = self._encode_context(source_context)\",\n \" output['params'] = context_class.get_public_params_for_display(\\n source_context)\",\n \" output['log'] = catch_and_log_.get()\",\n \" output['source'] = data_source_class.get_name()\",\n \" self.response.headers['Content-Type'] = (\\n 'application/javascript; charset=utf-8')\",\n \" self.response.headers['X-Content-Type-Options'] = 'nosniff'\",\n \" self.response.headers['Content-Disposition'] = 'attachment'\",\n \" self.response.write(transforms.JSON_XSSI_PREFIX +\\n transforms.dumps(output))\",\n \" def _encode_context(self, source_context):\\n \\\"\\\"\\\"Save context as opaque string for use as arg to next call.\\\"\\\"\\\"\\n context_class = self.get_data_source_class().get_context_class()\\n context_dict = context_class.save_to_dict(source_context)\\n plaintext_context = transforms.dumps(context_dict)\\n return crypto.EncryptionManager.encrypt_to_urlsafe_ciphertext(\\n plaintext_context)\",\n \" \\\"\\\"\\\"Save context as opaque string for use as arg to next call.\\\"\\\"\\\"\",\n \" context_class = self.get_data_source_class().get_context_class()\",\n \" context_dict = context_class.save_to_dict(source_context)\",\n \" plaintext_context = transforms.dumps(context_dict)\",\n \" return crypto.EncryptionManager.encrypt_to_urlsafe_ciphertext(\\n plaintext_context)\",\n \" def _get_source_context(self, default_chunk_size, catch_and_log_):\\n \\\"\\\"\\\"Decide whether to use pre-built context or make a new one.\\n\\n Callers to this interface may provide source-specific parameters to\\n indicate what portion of the data source they are interested in, or\\n pass in a pre-built context (as returned from _encode_context, above)\\n returned by a previous request, or both.\",\n \" \\\"\\\"\\\"Decide whether to use pre-built context or make a new one.\\n\\n Callers to this interface may provide source-specific parameters to\\n indicate what portion of the data source they are interested in, or\\n pass in a pre-built context (as returned from _encode_context, above)\\n returned by a previous request, or both.\\n\\n The preference is to use the encoded context, as long as it is\",\n \" context_class = self.get_data_source_class().get_context_class()\",\n \" new_context = context_class.build_from_web_request(self.request,\\n default_chunk_size)\",\n \" existing_context = None\",\n \" existing_context = self._get_existing_context(context_class)\",\n \" ret = None\",\n \" if new_context and not existing_context:\\n catch_and_log_.info('Creating new context for given parameters')\\n ret = new_context\\n elif existing_context and not new_context:\\n catch_and_log_.info('Continuing use of existing context')\\n ret = existing_context\\n elif not new_context and not existing_context:\\n catch_and_log_.info('Building new default context')\",\n \" catch_and_log_.info('Creating new context for given parameters')\",\n \" ret = new_context\",\n \" elif existing_context and not new_context:\\n catch_and_log_.info('Continuing use of existing context')\\n ret = existing_context\\n elif not new_context and not existing_context:\\n catch_and_log_.info('Building new default context')\\n ret = context_class.build_blank_default(self.request,\\n default_chunk_size)\\n elif not context_class.equivalent(new_context, existing_context):\",\n \" catch_and_log_.info('Continuing use of existing context')\",\n \" ret = existing_context\",\n \" elif not new_context and not existing_context:\\n catch_and_log_.info('Building new default context')\\n ret = context_class.build_blank_default(self.request,\\n default_chunk_size)\\n elif not context_class.equivalent(new_context, existing_context):\\n catch_and_log_.info(\\n 'Existing context and parameters mismatch; discarding '\\n 'existing and creating new context.')\",\n \" catch_and_log_.info('Building new default context')\",\n \" ret = context_class.build_blank_default(self.request,\\n default_chunk_size)\",\n \" elif not context_class.equivalent(new_context, existing_context):\\n catch_and_log_.info(\\n 'Existing context and parameters mismatch; discarding '\\n 'existing and creating new context.')\\n ret = new_context\\n else:\\n catch_and_log_.info(\\n 'Existing context matches parameters; using existing context')\",\n \" catch_and_log_.info(\\n 'Existing context and parameters mismatch; discarding '\\n 'existing and creating new context.')\",\n \" ret = new_context\",\n \" catch_and_log_.info(\\n 'Existing context matches parameters; using existing context')\",\n \" ret = existing_context\",\n \" return ret\",\n \" def _get_existing_context(self, context_class):\\n \\\"\\\"\\\"Obtain and decode existing context, if present.\\\"\\\"\\\"\\n context_param = self.request.get('source_context')\\n if not context_param:\\n return None\\n\\n plaintext_context = (\\n crypto.EncryptionManager.decrypt_from_urlsafe_ciphertext(\",\n \" \\\"\\\"\\\"Obtain and decode existing context, if present.\\\"\\\"\\\"\",\n \" context_param = self.request.get('source_context')\",\n \" if not context_param:\\n return None\",\n \" return None\",\n \" plaintext_context = (\\n crypto.EncryptionManager.decrypt_from_urlsafe_ciphertext(\\n str(context_param)))\",\n \" dict_context = transforms.loads(plaintext_context)\",\n \" return context_class.build_from_dict(dict_context)\"\n]","isConversational":false}}},{"rowIdx":4787,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Utility functions common to data sources module.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nfrom models import jobs\n\nDATA_SOURCE_ACCESS_XSRF_ACTION = 'data_source_access'\n\n\ndef generate_data_source_token(xsrf):\n \"\"\"Generate an XSRF token used to access data source, and protect PII.\"\"\"\n return xsrf.create_xsrf_token(DATA_SOURCE_ACCESS_XSRF_ACTION)\n\n\ndef get_required_jobs(data_source_class, app_context, catch_and_log_):\n ret = []\n for required_generator in data_source_class.required_generators():\n job = required_generator(app_context).load()\n if not job:\n catch_and_log_.critical('Job for %s has never run.' %\n required_generator.__name__)\n return None\n elif not job.has_finished:\n catch_and_log_.critical('Job for %s is still running.' %\n required_generator.__name__)\n return None\n elif job.status_code == jobs.STATUS_CODE_FAILED:\n catch_and_log_.critical('Job for %s failed its last run.' %\n required_generator.__name__)\n return None\n else:\n ret.append(job)\n return ret\n"},"vector":{"kind":"list like","value":[[8,0,0.3191,0.0213,0,0.66,0,0,1,0,0,0,0,0,0],[14,0,0.3617,0.0213,0,0.66,0.2,777,1,0,0,0,0,3,0],[1,0,0.4043,0.0213,0,0.66,0.4,495,0,1,0,0,495,0,0],[14,0,0.4468,0.0213,0,0.66,0.6,28,1,0,0,0,0,3,0],[2,0,0.5319,0.0638,0,0.66,0.8,618,0,1,1,0,0,0,1],[8,1,0.5319,0.0213,1,0.3,0,0,1,0,0,0,0,0,0],[13,1,0.5532,0.0213,1,0.3,1,0,3,0,0,0,0,10,1],[2,0,0.8085,0.4043,0,0.66,1,270,0,3,1,0,0,0,7],[14,1,0.6383,0.0213,1,0.42,0,501,0,0,0,0,0,5,0],[6,1,0.8191,0.3404,1,0.42,0.5,640,3,0,0,0,0,0,7],[14,2,0.6809,0.0213,2,0.63,0,831,3,0,0,0,37,10,2],[4,2,0.8404,0.2979,2,0.63,1,0,0,0,0,0,0,0,4],[8,3,0.734,0.0426,3,0.27,0,432,3,1,0,0,0,0,1],[13,3,0.766,0.0213,3,0.27,0.5,0,1,0,0,0,0,9,0],[4,3,0.883,0.2128,3,0.27,1,0,0,0,0,0,0,0,3],[8,4,0.8191,0.0426,4,0.71,0,432,3,1,0,0,0,0,1],[13,4,0.8511,0.0213,4,0.71,0.5,0,1,0,0,0,0,9,0],[4,4,0.9255,0.1277,4,0.71,1,0,0,0,0,0,0,0,2],[8,5,0.9043,0.0426,5,0.28,0,432,3,1,0,0,0,0,1],[13,5,0.9362,0.0213,5,0.28,0.5,0,1,0,0,0,0,9,0],[8,5,0.9787,0.0213,5,0.28,1,243,3,1,0,0,0,0,1],[13,1,1,0.0213,1,0.42,1,0,2,0,0,0,0,0,0]],"string":"[\n [\n 8,\n 0,\n 0.3191,\n 0.0213,\n 0,\n 0.66,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.3617,\n 0.0213,\n 0,\n 0.66,\n 0.2,\n 777,\n 1,\n 0,\n 0,\n 0,\n 0,\n 3,\n 0\n ],\n [\n 1,\n 0,\n 0.4043,\n 0.0213,\n 0,\n 0.66,\n 0.4,\n 495,\n 0,\n 1,\n 0,\n 0,\n 495,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4468,\n 0.0213,\n 0,\n 0.66,\n 0.6,\n 28,\n 1,\n 0,\n 0,\n 0,\n 0,\n 3,\n 0\n ],\n [\n 2,\n 0,\n 0.5319,\n 0.0638,\n 0,\n 0.66,\n 0.8,\n 618,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 1,\n 0.5319,\n 0.0213,\n 1,\n 0.3,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 1,\n 0.5532,\n 0.0213,\n 1,\n 0.3,\n 1,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 10,\n 1\n ],\n [\n 2,\n 0,\n 0.8085,\n 0.4043,\n 0,\n 0.66,\n 1,\n 270,\n 0,\n 3,\n 1,\n 0,\n 0,\n 0,\n 7\n ],\n [\n 14,\n 1,\n 0.6383,\n 0.0213,\n 1,\n 0.42,\n 0,\n 501,\n 0,\n 0,\n 0,\n 0,\n 0,\n 5,\n 0\n ],\n [\n 6,\n 1,\n 0.8191,\n 0.3404,\n 1,\n 0.42,\n 0.5,\n 640,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 7\n ],\n [\n 14,\n 2,\n 0.6809,\n 0.0213,\n 2,\n 0.63,\n 0,\n 831,\n 3,\n 0,\n 0,\n 0,\n 37,\n 10,\n 2\n ],\n [\n 4,\n 2,\n 0.8404,\n 0.2979,\n 2,\n 0.63,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 4\n ],\n [\n 8,\n 3,\n 0.734,\n 0.0426,\n 3,\n 0.27,\n 0,\n 432,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 3,\n 0.766,\n 0.0213,\n 3,\n 0.27,\n 0.5,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 9,\n 0\n ],\n [\n 4,\n 3,\n 0.883,\n 0.2128,\n 3,\n 0.27,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 8,\n 4,\n 0.8191,\n 0.0426,\n 4,\n 0.71,\n 0,\n 432,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 4,\n 0.8511,\n 0.0213,\n 4,\n 0.71,\n 0.5,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 9,\n 0\n ],\n [\n 4,\n 4,\n 0.9255,\n 0.1277,\n 4,\n 0.71,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 2\n ],\n [\n 8,\n 5,\n 0.9043,\n 0.0426,\n 5,\n 0.28,\n 0,\n 432,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 5,\n 0.9362,\n 0.0213,\n 5,\n 0.28,\n 0.5,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 9,\n 0\n ],\n [\n 8,\n 5,\n 0.9787,\n 0.0213,\n 5,\n 0.28,\n 1,\n 243,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 13,\n 1,\n 1,\n 0.0213,\n 1,\n 0.42,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Utility functions common to data sources module.\"\"\"","__author__ = 'Mike Gainer (mgainer@google.com)'","from models import jobs","DATA_SOURCE_ACCESS_XSRF_ACTION = 'data_source_access'","def generate_data_source_token(xsrf):\n \"\"\"Generate an XSRF token used to access data source, and protect PII.\"\"\"\n return xsrf.create_xsrf_token(DATA_SOURCE_ACCESS_XSRF_ACTION)"," \"\"\"Generate an XSRF token used to access data source, and protect PII.\"\"\""," return xsrf.create_xsrf_token(DATA_SOURCE_ACCESS_XSRF_ACTION)","def get_required_jobs(data_source_class, app_context, catch_and_log_):\n ret = []\n for required_generator in data_source_class.required_generators():\n job = required_generator(app_context).load()\n if not job:\n catch_and_log_.critical('Job for %s has never run.' %\n required_generator.__name__)\n return None"," ret = []"," for required_generator in data_source_class.required_generators():\n job = required_generator(app_context).load()\n if not job:\n catch_and_log_.critical('Job for %s has never run.' %\n required_generator.__name__)\n return None\n elif not job.has_finished:\n catch_and_log_.critical('Job for %s is still running.' %"," job = required_generator(app_context).load()"," if not job:\n catch_and_log_.critical('Job for %s has never run.' %\n required_generator.__name__)\n return None\n elif not job.has_finished:\n catch_and_log_.critical('Job for %s is still running.' %\n required_generator.__name__)\n return None"," catch_and_log_.critical('Job for %s has never run.' %\n required_generator.__name__)"," return None"," elif not job.has_finished:\n catch_and_log_.critical('Job for %s is still running.' %\n required_generator.__name__)\n return None\n elif job.status_code == jobs.STATUS_CODE_FAILED:\n catch_and_log_.critical('Job for %s failed its last run.' %\n required_generator.__name__)\n return None"," catch_and_log_.critical('Job for %s is still running.' %\n required_generator.__name__)"," return None"," elif job.status_code == jobs.STATUS_CODE_FAILED:\n catch_and_log_.critical('Job for %s failed its last run.' %\n required_generator.__name__)\n return None\n else:\n ret.append(job)"," catch_and_log_.critical('Job for %s failed its last run.' %\n required_generator.__name__)"," return None"," ret.append(job)"," return ret"],"string":"[\n \"\\\"\\\"\\\"Utility functions common to data sources module.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"from models import jobs\",\n \"DATA_SOURCE_ACCESS_XSRF_ACTION = 'data_source_access'\",\n \"def generate_data_source_token(xsrf):\\n \\\"\\\"\\\"Generate an XSRF token used to access data source, and protect PII.\\\"\\\"\\\"\\n return xsrf.create_xsrf_token(DATA_SOURCE_ACCESS_XSRF_ACTION)\",\n \" \\\"\\\"\\\"Generate an XSRF token used to access data source, and protect PII.\\\"\\\"\\\"\",\n \" return xsrf.create_xsrf_token(DATA_SOURCE_ACCESS_XSRF_ACTION)\",\n \"def get_required_jobs(data_source_class, app_context, catch_and_log_):\\n ret = []\\n for required_generator in data_source_class.required_generators():\\n job = required_generator(app_context).load()\\n if not job:\\n catch_and_log_.critical('Job for %s has never run.' %\\n required_generator.__name__)\\n return None\",\n \" ret = []\",\n \" for required_generator in data_source_class.required_generators():\\n job = required_generator(app_context).load()\\n if not job:\\n catch_and_log_.critical('Job for %s has never run.' %\\n required_generator.__name__)\\n return None\\n elif not job.has_finished:\\n catch_and_log_.critical('Job for %s is still running.' %\",\n \" job = required_generator(app_context).load()\",\n \" if not job:\\n catch_and_log_.critical('Job for %s has never run.' %\\n required_generator.__name__)\\n return None\\n elif not job.has_finished:\\n catch_and_log_.critical('Job for %s is still running.' %\\n required_generator.__name__)\\n return None\",\n \" catch_and_log_.critical('Job for %s has never run.' %\\n required_generator.__name__)\",\n \" return None\",\n \" elif not job.has_finished:\\n catch_and_log_.critical('Job for %s is still running.' %\\n required_generator.__name__)\\n return None\\n elif job.status_code == jobs.STATUS_CODE_FAILED:\\n catch_and_log_.critical('Job for %s failed its last run.' %\\n required_generator.__name__)\\n return None\",\n \" catch_and_log_.critical('Job for %s is still running.' %\\n required_generator.__name__)\",\n \" return None\",\n \" elif job.status_code == jobs.STATUS_CODE_FAILED:\\n catch_and_log_.critical('Job for %s failed its last run.' %\\n required_generator.__name__)\\n return None\\n else:\\n ret.append(job)\",\n \" catch_and_log_.critical('Job for %s failed its last run.' %\\n required_generator.__name__)\",\n \" return None\",\n \" ret.append(job)\",\n \" return ret\"\n]","isConversational":false}}},{"rowIdx":4788,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Access AppEngine DB tables via AbstractRestDataSource interface.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nimport copy\nimport functools\nimport re\n\nfrom common import crypto\nfrom common.utils import Namespace\nfrom models import entity_transforms\nfrom models import transforms\nfrom models.data_sources import base_types\nfrom models.data_sources import utils as data_sources_utils\n\nfrom google.appengine.ext import db\n\n\n# Package-protected pylint: disable=protected-access\nclass _AbstractDbTableRestDataSource(base_types._AbstractRestDataSource):\n \"\"\"Implements a paged view against a single DB table.\"\"\"\n\n @classmethod\n def get_entity_class(cls):\n raise NotImplementedError(\n 'Do not use this class directly; call paginated_table_source() '\n 'to build a curried version.')\n\n @classmethod\n def get_name(cls):\n raise NotImplementedError(\n 'Do not use this class directly; call paginated_table_source() '\n 'to build a curried version.')\n\n @classmethod\n def get_context_class(cls):\n return _DbTableContext\n\n @classmethod\n def get_schema(cls, app_context, log, source_context):\n clazz = cls.get_entity_class()\n if source_context.send_uncensored_pii_data:\n registry = entity_transforms.get_schema_for_entity_unsafe(clazz)\n else:\n registry = entity_transforms.get_schema_for_entity(clazz)\n return registry.get_json_schema_dict()['properties']\n\n @classmethod\n def fetch_values(cls, app_context, source_context, schema, log,\n sought_page_number, *unused_jobs):\n with Namespace(app_context.get_namespace_name()):\n stopped_early = False\n while len(source_context.cursors) < sought_page_number:\n page_number = len(source_context.cursors)\n query = cls._build_query(source_context, schema, page_number,\n log)\n rows = cls._fetch_page(source_context, query, page_number, log)\n\n # Stop early if we notice we've hit the end of the table.\n if len(rows) < source_context.chunk_size:\n log.warning('Fewer pages available than requested. '\n 'Stopping at last page %d' % page_number)\n stopped_early = True\n break\n\n if not stopped_early:\n page_number = sought_page_number\n query = cls._build_query(source_context, schema, page_number,\n log)\n rows = cls._fetch_page(source_context, query, page_number, log)\n\n # While returning a page with _no_ items for the 'last' page\n # is technically correct, it tends to have unfortunate\n # consequences for dc/crossfilter/d3-based displays.\n if not rows:\n page_number = sought_page_number - 1\n log.warning('Fewer pages available than requested. '\n 'Stopping at last page %d' % page_number)\n query = cls._build_query(source_context, schema,\n page_number, log)\n rows = cls._fetch_page(source_context, query,\n page_number, log)\n\n return cls._postprocess_rows(\n app_context, source_context, schema, log, page_number, rows\n ), page_number\n\n @classmethod\n def _postprocess_rows(cls, unused_app_context, source_context,\n schema, unused_log, unused_page_number,\n rows):\n transform_fn = cls._build_transform_fn(source_context)\n if source_context.send_uncensored_pii_data:\n entities = [row.for_export_unsafe() for row in rows]\n else:\n entities = [row.for_export(transform_fn) for row in rows]\n dicts = [transforms.entity_to_dict(entity) for entity in entities]\n return [transforms.dict_to_json(d, schema) for d in dicts]\n\n @classmethod\n def _build_query(cls, source_context, schema, page_number, log):\n query = cls.get_entity_class().all()\n cls._add_query_filters(source_context, schema, page_number, query)\n cls._add_query_orderings(source_context, schema, page_number, query)\n cls._add_query_cursors(source_context, schema, page_number, query, log)\n return query\n\n FILTER_RE = re.compile('^([a-zA-Z0-9_]+)([<>=]+)(.*)$')\n SUPPORTED_OPERATIONS = ['=', '<', '>', '>=', '<=']\n\n @classmethod\n def _add_query_filters(cls, source_context, schema, page_number, query):\n for filter_spec in source_context.filters:\n parts = cls.FILTER_RE.match(filter_spec)\n if not parts:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'is not of the form: <name><op><value>')\n name, op, value = parts.groups()\n if op not in cls.SUPPORTED_OPERATIONS:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'uses an unsupported comparison operation \"%s\"' % op)\n\n if name not in schema:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'calls for field \"%s\" ' % name +\n 'which is not in the schema for '\n 'type \"%s\"' % cls.get_entity_class().__name__)\n converted_value = transforms.json_to_dict(\n {name: value},\n {'properties': {name: schema[name]}})[name]\n query.filter('%s %s' % (name, op), converted_value)\n\n @classmethod\n def _add_query_orderings(cls, source_context, schema, page_number, query):\n for ordering in source_context.orderings:\n query.order(ordering)\n\n @classmethod\n def _add_query_cursors(cls, source_context, schema, page_number, query,\n log):\n start_cursor = source_context.cursors.get(str(page_number), None)\n end_cursor = source_context.cursors.get(str(page_number + 1), None)\n log.info('fetch page %d start cursor %s; end cursor %s' %\n (page_number,\n 'present' if start_cursor else 'missing',\n 'present' if end_cursor else 'missing'))\n query.with_cursor(start_cursor=start_cursor, end_cursor=end_cursor)\n\n @classmethod\n def _fetch_page(cls, source_context, query, page_number, log):\n limit = None\n if (str(page_number + 1)) not in source_context.cursors:\n limit = source_context.chunk_size\n log.info('fetch page %d using limit %d' % (page_number, limit))\n results = query.fetch(limit=limit, read_policy=db.EVENTUAL_CONSISTENCY)\n if (str(page_number + 1)) not in source_context.cursors:\n cursor = query.cursor()\n if cursor:\n if len(results) >= source_context.chunk_size:\n source_context.cursors[str(page_number + 1)] = cursor\n log.info('fetch page %d saving end cursor' % page_number)\n else:\n log.info('fetch page %d is partial; not saving end cursor'\n % page_number)\n else:\n log.info('fetch_page %d had no end cursor' % page_number)\n return results\n\n @classmethod\n def _build_transform_fn(cls, context):\n if not context.pii_secret:\n # This value is used in key generation in entities, and so\n # cannot be None or an empty string; the appengine DB internals\n # will complain.\n return lambda pii: 'None'\n return functools.partial(crypto.hmac_sha_2_256_transform,\n context.pii_secret)\n\n\n# Package-protected pylint: disable=protected-access\nclass _DbTableContext(base_types._AbstractContextManager):\n \"\"\"Save/restore interface for context specific to DbTableRestDataSource.\n\n chunk_size=<N>: Specify the number of data items desired per page.\n If not provided, the default value is\n base_types._AbstractRestDataSource.RECOMMENDED_MAX_DATA_ITEMS.\n filters=<filter>: May be specified zero or more times. Each\n filter must be of the form: <name><comparator><literal>\n Here, <name> is the name of a field on which to filter.\n The <comparator> is one of \"=\", \"<\", \">\", \"<=\", \">='\n with the obvious meaning.\n Lastly, <literal> is a literal value of a type matching the\n filtered field.\n orderings=<name>: May be specified zero or more times. This\n specifies a sort order based on a field. The format is\n <field> or <field>.asc or <field>.desc, where <field> is\n the name of a field. Note that if a less-than or greater-than\n filter is applied, these fields must also be ordered by before\n you specify any other order-by fields.\n \"\"\"\n\n # Classes defining various versions of source_context used for\n # DbTableRestDataSource.\n class _TableContext1(object):\n\n def __init__(self, version, chunk_size, filters, orderings, cursors,\n pii_secret, send_uncensored_pii_data=False):\n \"\"\"Set up a context.\n\n Note: This plain-old-data class is being used in preference over a\n collections.namedtuple(), because for export to the JS on a page, we\n want to be able to \"just get all the members\", which is done using\n the __dict__ member. This works fine for namedtuple proper, but\n when a namedtuple is serialized (pickled) and then unpickled, it\n appears to come out as some type that acts like a namedtuple\n w.r.t. the individual elements, but the __dict__ member is not\n present. This situation never seems to come up in dev environments,\n but it does occur in production reliably enough to count as a bug.\n Thus we make this class by hand, the old fashioned way.\n\n Args:\n version: Always 1 to match TableContext1\n chunk_size: Goal number of items in each page.\n filters: List of strings of form <field>.<op>.<value>\n orderings: List of strings of form <field>.{asc|desc}\n cursors: List of opaque AppEngine DB cursor strings, one per page\n pii_secret: Session-specific encryption key for PII data.\n \"\"\"\n self.version = version\n self.chunk_size = chunk_size\n self.filters = filters\n self.orderings = orderings\n self.cursors = cursors\n self.pii_secret = pii_secret\n\n # This field is present, but normally never set. In one-off\n # requests from the Data Pump, where the administrator has checked\n # a checkbox, un-blacklisted data is available. Note that setting\n # this flag will also almost certainly change the reported schema.\n self.send_uncensored_pii_data = False\n\n @classmethod\n def build_from_web_request(cls, params, default_chunk_size):\n chunk_size = params.get('chunk_size')\n filters = params.get_all('filter')\n orderings = params.get_all('ordering')\n if not chunk_size and not filters and not orderings:\n return None\n\n chunk_size = int(chunk_size or default_chunk_size)\n secret = cls._build_secret(params)\n return cls._TableContext1(1, chunk_size, filters, orderings, {}, secret)\n\n @classmethod\n def build_from_dict(cls, context_dict):\n version = context_dict.get('version', -1)\n if version == 1:\n return cls._TableContext1(**context_dict)\n else:\n raise NotImplementedError(\n 'Source context version %d is not supported.' % version)\n\n @classmethod\n def build_blank_default(cls, params, default_chunk_size):\n secret = cls._build_secret(params)\n return cls._TableContext1(\n 1,\n default_chunk_size,\n [], # no filters\n [], # no orderings\n {}, # no cursors\n secret)\n\n @classmethod\n def save_to_dict(cls, context):\n # convert namedtuple to regular Python dict\n return context.__dict__\n\n @classmethod\n def get_public_params_for_display(cls, context):\n ret = copy.copy(context.__dict__)\n del ret['version']\n del ret['cursors']\n del ret['pii_secret']\n del ret['send_uncensored_pii_data']\n return ret\n\n @classmethod\n def equivalent(cls, new_context, old_context):\n return (\n new_context.version == old_context.version and\n new_context.chunk_size == old_context.chunk_size and\n new_context.filters == old_context.filters and\n new_context.orderings == old_context.orderings)\n\n @classmethod\n def _build_secret(cls, params):\n data_source_token = params.get('data_source_token')\n return crypto.generate_transform_secret_from_xsrf_token(\n data_source_token,\n data_sources_utils.DATA_SOURCE_ACCESS_XSRF_ACTION)\n"},"vector":{"kind":"list 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0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9937,\n 0.0157,\n 1,\n 0.52,\n 1,\n 628,\n 0,\n 2,\n 1,\n 0,\n 0,\n 0,\n 2\n ],\n [\n 14,\n 2,\n 0.9906,\n 0.0031,\n 2,\n 0.66,\n 0,\n 289,\n 3,\n 1,\n 0,\n 0,\n 607,\n 10,\n 1\n ],\n [\n 13,\n 2,\n 0.9969,\n 0.0094,\n 2,\n 0.66,\n 1,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 10,\n 1\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Access AppEngine DB tables via AbstractRestDataSource interface.\"\"\"","__author__ = 'Mike Gainer (mgainer@google.com)'","import copy","import functools","import re","from common import crypto","from common.utils import Namespace","from models import entity_transforms","from models import transforms","from models.data_sources import base_types","from models.data_sources import utils as data_sources_utils","from google.appengine.ext import db","class _AbstractDbTableRestDataSource(base_types._AbstractRestDataSource):\n \"\"\"Implements a paged view against a single DB table.\"\"\"\n\n @classmethod\n def get_entity_class(cls):\n raise NotImplementedError(\n 'Do not use this class directly; call paginated_table_source() '\n 'to build a curried version.')"," \"\"\"Implements a paged view against a single DB table.\"\"\""," def get_entity_class(cls):\n raise NotImplementedError(\n 'Do not use this class directly; call paginated_table_source() '\n 'to build a curried version.')"," def get_name(cls):\n raise NotImplementedError(\n 'Do not use this class directly; call paginated_table_source() '\n 'to build a curried version.')"," def get_context_class(cls):\n return _DbTableContext"," return _DbTableContext"," def get_schema(cls, app_context, log, source_context):\n clazz = cls.get_entity_class()\n if source_context.send_uncensored_pii_data:\n registry = entity_transforms.get_schema_for_entity_unsafe(clazz)\n else:\n registry = entity_transforms.get_schema_for_entity(clazz)\n return registry.get_json_schema_dict()['properties']"," clazz = cls.get_entity_class()"," if source_context.send_uncensored_pii_data:\n registry = entity_transforms.get_schema_for_entity_unsafe(clazz)\n else:\n registry = entity_transforms.get_schema_for_entity(clazz)"," registry = entity_transforms.get_schema_for_entity_unsafe(clazz)"," registry = entity_transforms.get_schema_for_entity(clazz)"," return registry.get_json_schema_dict()['properties']"," def fetch_values(cls, app_context, source_context, schema, log,\n sought_page_number, *unused_jobs):\n with Namespace(app_context.get_namespace_name()):\n stopped_early = False\n while len(source_context.cursors) < sought_page_number:\n page_number = len(source_context.cursors)\n query = cls._build_query(source_context, schema, page_number,\n log)"," stopped_early = False"," while len(source_context.cursors) < sought_page_number:\n page_number = len(source_context.cursors)\n query = cls._build_query(source_context, schema, page_number,\n log)\n rows = cls._fetch_page(source_context, query, page_number, log)\n\n # Stop early if we notice we've hit the end of the table.\n if len(rows) < source_context.chunk_size:"," page_number = len(source_context.cursors)"," query = cls._build_query(source_context, schema, page_number,\n log)"," rows = cls._fetch_page(source_context, query, page_number, log)"," if len(rows) < source_context.chunk_size:\n log.warning('Fewer pages available than requested. '\n 'Stopping at last page %d' % page_number)\n stopped_early = True\n break"," log.warning('Fewer pages available than requested. '\n 'Stopping at last page %d' % page_number)"," stopped_early = True"," if not stopped_early:\n page_number = sought_page_number\n query = cls._build_query(source_context, schema, page_number,\n log)\n rows = cls._fetch_page(source_context, query, page_number, log)\n\n # While returning a page with _no_ items for the 'last' page\n # is technically correct, it tends to have unfortunate"," page_number = sought_page_number"," query = cls._build_query(source_context, schema, page_number,\n log)"," rows = cls._fetch_page(source_context, query, page_number, log)"," if not rows:\n page_number = sought_page_number - 1\n log.warning('Fewer pages available than requested. '\n 'Stopping at last page %d' % page_number)\n query = cls._build_query(source_context, schema,\n page_number, log)\n rows = cls._fetch_page(source_context, query,\n page_number, log)"," page_number = sought_page_number - 1"," log.warning('Fewer pages available than requested. '\n 'Stopping at last page %d' % page_number)"," query = cls._build_query(source_context, schema,\n page_number, log)"," rows = cls._fetch_page(source_context, query,\n page_number, log)"," return cls._postprocess_rows(\n app_context, source_context, schema, log, page_number, rows\n ), page_number"," def _postprocess_rows(cls, unused_app_context, source_context,\n schema, unused_log, unused_page_number,\n rows):\n transform_fn = cls._build_transform_fn(source_context)\n if source_context.send_uncensored_pii_data:\n entities = [row.for_export_unsafe() for row in rows]\n else:\n entities = [row.for_export(transform_fn) for row in rows]"," transform_fn = cls._build_transform_fn(source_context)"," if source_context.send_uncensored_pii_data:\n entities = [row.for_export_unsafe() for row in rows]\n else:\n entities = [row.for_export(transform_fn) for row in rows]"," entities = [row.for_export_unsafe() for row in rows]"," entities = [row.for_export(transform_fn) for row in rows]"," dicts = [transforms.entity_to_dict(entity) for entity in entities]"," return [transforms.dict_to_json(d, schema) for d in dicts]"," def _build_query(cls, source_context, schema, page_number, log):\n query = cls.get_entity_class().all()\n cls._add_query_filters(source_context, schema, page_number, query)\n cls._add_query_orderings(source_context, schema, page_number, query)\n cls._add_query_cursors(source_context, schema, page_number, query, log)\n return query"," query = cls.get_entity_class().all()"," cls._add_query_filters(source_context, schema, page_number, query)"," cls._add_query_orderings(source_context, schema, page_number, query)"," cls._add_query_cursors(source_context, schema, page_number, query, log)"," return query"," FILTER_RE = re.compile('^([a-zA-Z0-9_]+)([<>=]+)(.*)$')"," SUPPORTED_OPERATIONS = ['=', '<', '>', '>=', '<=']"," def _add_query_filters(cls, source_context, schema, page_number, query):\n for filter_spec in source_context.filters:\n parts = cls.FILTER_RE.match(filter_spec)\n if not parts:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'is not of the form: <name><op><value>')\n name, op, value = parts.groups()"," for filter_spec in source_context.filters:\n parts = cls.FILTER_RE.match(filter_spec)\n if not parts:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'is not of the form: <name><op><value>')\n name, op, value = parts.groups()\n if op not in cls.SUPPORTED_OPERATIONS:"," parts = cls.FILTER_RE.match(filter_spec)"," if not parts:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'is not of the form: <name><op><value>')"," name, op, value = parts.groups()"," if op not in cls.SUPPORTED_OPERATIONS:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'uses an unsupported comparison operation \"%s\"' % op)"," if name not in schema:\n raise ValueError(\n 'Filter specification \"%s\" ' % filter_spec +\n 'calls for field \"%s\" ' % name +\n 'which is not in the schema for '\n 'type \"%s\"' % cls.get_entity_class().__name__)"," converted_value = transforms.json_to_dict(\n {name: value},\n {'properties': {name: schema[name]}})[name]"," query.filter('%s %s' % (name, op), converted_value)"," def _add_query_orderings(cls, source_context, schema, page_number, query):\n for ordering in source_context.orderings:\n query.order(ordering)"," for ordering in source_context.orderings:\n query.order(ordering)"," query.order(ordering)"," def _add_query_cursors(cls, source_context, schema, page_number, query,\n log):\n start_cursor = source_context.cursors.get(str(page_number), None)\n end_cursor = source_context.cursors.get(str(page_number + 1), None)\n log.info('fetch page %d start cursor %s; end cursor %s' %\n (page_number,\n 'present' if start_cursor else 'missing',\n 'present' if end_cursor else 'missing'))"," start_cursor = source_context.cursors.get(str(page_number), None)"," end_cursor = source_context.cursors.get(str(page_number + 1), None)"," log.info('fetch page %d start cursor %s; end cursor %s' %\n (page_number,\n 'present' if start_cursor else 'missing',\n 'present' if end_cursor else 'missing'))"," query.with_cursor(start_cursor=start_cursor, end_cursor=end_cursor)"," def _fetch_page(cls, source_context, query, page_number, log):\n limit = None\n if (str(page_number + 1)) not in source_context.cursors:\n limit = source_context.chunk_size\n log.info('fetch page %d using limit %d' % (page_number, limit))\n results = query.fetch(limit=limit, read_policy=db.EVENTUAL_CONSISTENCY)\n if (str(page_number + 1)) not in source_context.cursors:\n cursor = query.cursor()"," limit = None"," if (str(page_number + 1)) not in source_context.cursors:\n limit = source_context.chunk_size\n log.info('fetch page %d using limit %d' % (page_number, limit))"," limit = source_context.chunk_size"," log.info('fetch page %d using limit %d' % (page_number, limit))"," results = query.fetch(limit=limit, read_policy=db.EVENTUAL_CONSISTENCY)"," if (str(page_number + 1)) not in source_context.cursors:\n cursor = query.cursor()\n if cursor:\n if len(results) >= source_context.chunk_size:\n source_context.cursors[str(page_number + 1)] = cursor\n log.info('fetch page %d saving end cursor' % page_number)\n else:\n log.info('fetch page %d is partial; not saving end cursor'"," cursor = query.cursor()"," if cursor:\n if len(results) >= source_context.chunk_size:\n source_context.cursors[str(page_number + 1)] = cursor\n log.info('fetch page %d saving end cursor' % page_number)\n else:\n log.info('fetch page %d is partial; not saving end cursor'\n % page_number)\n else:"," if len(results) >= source_context.chunk_size:\n source_context.cursors[str(page_number + 1)] = cursor\n log.info('fetch page %d saving end cursor' % page_number)\n else:\n log.info('fetch page %d is partial; not saving end cursor'\n % page_number)"," source_context.cursors[str(page_number + 1)] = cursor"," log.info('fetch page %d saving end cursor' % page_number)"," log.info('fetch page %d is partial; not saving end cursor'\n % page_number)"," log.info('fetch_page %d had no end cursor' % page_number)"," return results"," def _build_transform_fn(cls, context):\n if not context.pii_secret:\n # This value is used in key generation in entities, and so\n # cannot be None or an empty string; the appengine DB internals\n # will complain.\n return lambda pii: 'None'\n return functools.partial(crypto.hmac_sha_2_256_transform,\n context.pii_secret)"," if not context.pii_secret:\n # This value is used in key generation in entities, and so\n # cannot be None or an empty string; the appengine DB internals\n # will complain.\n return lambda pii: 'None'"," return lambda pii: 'None'"," return functools.partial(crypto.hmac_sha_2_256_transform,\n context.pii_secret)","class _DbTableContext(base_types._AbstractContextManager):\n \"\"\"Save/restore interface for context specific to DbTableRestDataSource.\n\n chunk_size=<N>: Specify the number of data items desired per page.\n If not provided, the default value is\n base_types._AbstractRestDataSource.RECOMMENDED_MAX_DATA_ITEMS.\n filters=<filter>: May be specified zero or more times. Each\n filter must be of the form: <name><comparator><literal>"," \"\"\"Save/restore interface for context specific to DbTableRestDataSource.\n\n chunk_size=<N>: Specify the number of data items desired per page.\n If not provided, the default value is\n base_types._AbstractRestDataSource.RECOMMENDED_MAX_DATA_ITEMS.\n filters=<filter>: May be specified zero or more times. Each\n filter must be of the form: <name><comparator><literal>\n Here, <name> is the name of a field on which to filter."," class _TableContext1(object):\n\n def __init__(self, version, chunk_size, filters, orderings, cursors,\n pii_secret, send_uncensored_pii_data=False):\n \"\"\"Set up a context.\n\n Note: This plain-old-data class is being used in preference over a\n collections.namedtuple(), because for export to the JS on a page, we"," def __init__(self, version, chunk_size, filters, orderings, cursors,\n pii_secret, send_uncensored_pii_data=False):\n \"\"\"Set up a context.\n\n Note: This plain-old-data class is being used in preference over a\n collections.namedtuple(), because for export to the JS on a page, we\n want to be able to \"just get all the members\", which is done using\n the __dict__ member. This works fine for namedtuple proper, but"," \"\"\"Set up a context.\n\n Note: This plain-old-data class is being used in preference over a\n collections.namedtuple(), because for export to the JS on a page, we\n want to be able to \"just get all the members\", which is done using\n the __dict__ member. This works fine for namedtuple proper, but\n when a namedtuple is serialized (pickled) and then unpickled, it\n appears to come out as some type that acts like a namedtuple"," self.version = version"," self.chunk_size = chunk_size"," self.filters = filters"," self.orderings = orderings"," self.cursors = cursors"," self.pii_secret = pii_secret"," self.send_uncensored_pii_data = False"," def build_from_web_request(cls, params, default_chunk_size):\n chunk_size = params.get('chunk_size')\n filters = params.get_all('filter')\n orderings = params.get_all('ordering')\n if not chunk_size and not filters and not orderings:\n return None\n\n chunk_size = int(chunk_size or default_chunk_size)"," chunk_size = params.get('chunk_size')"," filters = params.get_all('filter')"," orderings = params.get_all('ordering')"," if not chunk_size and not filters and not orderings:\n return None"," return None"," chunk_size = int(chunk_size or default_chunk_size)"," secret = cls._build_secret(params)"," return cls._TableContext1(1, chunk_size, filters, orderings, {}, secret)"," def build_from_dict(cls, context_dict):\n version = context_dict.get('version', -1)\n if version == 1:\n return cls._TableContext1(**context_dict)\n else:\n raise NotImplementedError(\n 'Source context version %d is not supported.' % version)"," version = context_dict.get('version', -1)"," if version == 1:\n return cls._TableContext1(**context_dict)\n else:\n raise NotImplementedError(\n 'Source context version %d is not supported.' % version)"," return cls._TableContext1(**context_dict)"," def build_blank_default(cls, params, default_chunk_size):\n secret = cls._build_secret(params)\n return cls._TableContext1(\n 1,\n default_chunk_size,\n [], # no filters\n [], # no orderings\n {}, # no cursors"," secret = cls._build_secret(params)"," return cls._TableContext1(\n 1,\n default_chunk_size,\n [], # no filters\n [], # no orderings\n {}, # no cursors\n secret)"," def save_to_dict(cls, context):\n # convert namedtuple to regular Python dict\n return context.__dict__"," return context.__dict__"," def get_public_params_for_display(cls, context):\n ret = copy.copy(context.__dict__)\n del ret['version']\n del ret['cursors']\n del ret['pii_secret']\n del ret['send_uncensored_pii_data']\n return ret"," ret = copy.copy(context.__dict__)"," return ret"," def equivalent(cls, new_context, old_context):\n return (\n new_context.version == old_context.version and\n new_context.chunk_size == old_context.chunk_size and\n new_context.filters == old_context.filters and\n new_context.orderings == old_context.orderings)"," return (\n new_context.version == old_context.version and\n new_context.chunk_size == old_context.chunk_size and\n new_context.filters == old_context.filters and\n new_context.orderings == old_context.orderings)"," def _build_secret(cls, params):\n data_source_token = params.get('data_source_token')\n return crypto.generate_transform_secret_from_xsrf_token(\n data_source_token,\n data_sources_utils.DATA_SOURCE_ACCESS_XSRF_ACTION)"," data_source_token = params.get('data_source_token')"," return crypto.generate_transform_secret_from_xsrf_token(\n data_source_token,\n data_sources_utils.DATA_SOURCE_ACCESS_XSRF_ACTION)"],"string":"[\n \"\\\"\\\"\\\"Access AppEngine DB tables via AbstractRestDataSource interface.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"import copy\",\n \"import functools\",\n \"import re\",\n \"from common import crypto\",\n \"from common.utils import Namespace\",\n \"from models import entity_transforms\",\n \"from models import transforms\",\n \"from models.data_sources import base_types\",\n \"from models.data_sources import utils as data_sources_utils\",\n \"from google.appengine.ext import db\",\n \"class _AbstractDbTableRestDataSource(base_types._AbstractRestDataSource):\\n \\\"\\\"\\\"Implements a paged view against a single DB table.\\\"\\\"\\\"\\n\\n @classmethod\\n def get_entity_class(cls):\\n raise NotImplementedError(\\n 'Do not use this class directly; call paginated_table_source() '\\n 'to build a curried version.')\",\n \" \\\"\\\"\\\"Implements a paged view against a single DB table.\\\"\\\"\\\"\",\n \" def get_entity_class(cls):\\n raise NotImplementedError(\\n 'Do not use this class directly; call paginated_table_source() '\\n 'to build a curried version.')\",\n \" def get_name(cls):\\n raise NotImplementedError(\\n 'Do not use this class directly; call paginated_table_source() '\\n 'to build a curried version.')\",\n \" def get_context_class(cls):\\n return _DbTableContext\",\n \" return _DbTableContext\",\n \" def get_schema(cls, app_context, log, source_context):\\n clazz = cls.get_entity_class()\\n if source_context.send_uncensored_pii_data:\\n registry = entity_transforms.get_schema_for_entity_unsafe(clazz)\\n else:\\n registry = entity_transforms.get_schema_for_entity(clazz)\\n return registry.get_json_schema_dict()['properties']\",\n \" clazz = cls.get_entity_class()\",\n \" if source_context.send_uncensored_pii_data:\\n registry = entity_transforms.get_schema_for_entity_unsafe(clazz)\\n else:\\n registry = entity_transforms.get_schema_for_entity(clazz)\",\n \" registry = entity_transforms.get_schema_for_entity_unsafe(clazz)\",\n \" registry = entity_transforms.get_schema_for_entity(clazz)\",\n \" return registry.get_json_schema_dict()['properties']\",\n \" def fetch_values(cls, app_context, source_context, schema, log,\\n sought_page_number, *unused_jobs):\\n with Namespace(app_context.get_namespace_name()):\\n stopped_early = False\\n while len(source_context.cursors) < sought_page_number:\\n page_number = len(source_context.cursors)\\n query = cls._build_query(source_context, schema, page_number,\\n log)\",\n \" stopped_early = False\",\n \" while len(source_context.cursors) < sought_page_number:\\n page_number = len(source_context.cursors)\\n query = cls._build_query(source_context, schema, page_number,\\n log)\\n rows = cls._fetch_page(source_context, query, page_number, log)\\n\\n # Stop early if we notice we've hit the end of the table.\\n if len(rows) < source_context.chunk_size:\",\n \" page_number = len(source_context.cursors)\",\n \" query = cls._build_query(source_context, schema, page_number,\\n log)\",\n \" rows = cls._fetch_page(source_context, query, page_number, log)\",\n \" if len(rows) < source_context.chunk_size:\\n log.warning('Fewer pages available than requested. '\\n 'Stopping at last page %d' % page_number)\\n stopped_early = True\\n break\",\n \" log.warning('Fewer pages available than requested. '\\n 'Stopping at last page %d' % page_number)\",\n \" stopped_early = True\",\n \" if not stopped_early:\\n page_number = sought_page_number\\n query = cls._build_query(source_context, schema, page_number,\\n log)\\n rows = cls._fetch_page(source_context, query, page_number, log)\\n\\n # While returning a page with _no_ items for the 'last' page\\n # is technically correct, it tends to have unfortunate\",\n \" page_number = sought_page_number\",\n \" query = cls._build_query(source_context, schema, page_number,\\n log)\",\n \" rows = cls._fetch_page(source_context, query, page_number, log)\",\n \" if not rows:\\n page_number = sought_page_number - 1\\n log.warning('Fewer pages available than requested. '\\n 'Stopping at last page %d' % page_number)\\n query = cls._build_query(source_context, schema,\\n page_number, log)\\n rows = cls._fetch_page(source_context, query,\\n page_number, log)\",\n \" page_number = sought_page_number - 1\",\n \" log.warning('Fewer pages available than requested. '\\n 'Stopping at last page %d' % page_number)\",\n \" query = cls._build_query(source_context, schema,\\n page_number, log)\",\n \" rows = cls._fetch_page(source_context, query,\\n page_number, log)\",\n \" return cls._postprocess_rows(\\n app_context, source_context, schema, log, page_number, rows\\n ), page_number\",\n \" def _postprocess_rows(cls, unused_app_context, source_context,\\n schema, unused_log, unused_page_number,\\n rows):\\n transform_fn = cls._build_transform_fn(source_context)\\n if source_context.send_uncensored_pii_data:\\n entities = [row.for_export_unsafe() for row in rows]\\n else:\\n entities = [row.for_export(transform_fn) for row in rows]\",\n \" transform_fn = cls._build_transform_fn(source_context)\",\n \" if source_context.send_uncensored_pii_data:\\n entities = [row.for_export_unsafe() for row in rows]\\n else:\\n entities = [row.for_export(transform_fn) for row in rows]\",\n \" entities = [row.for_export_unsafe() for row in rows]\",\n \" entities = [row.for_export(transform_fn) for row in rows]\",\n \" dicts = [transforms.entity_to_dict(entity) for entity in entities]\",\n \" return [transforms.dict_to_json(d, schema) for d in dicts]\",\n \" def _build_query(cls, source_context, schema, page_number, log):\\n query = cls.get_entity_class().all()\\n cls._add_query_filters(source_context, schema, page_number, query)\\n cls._add_query_orderings(source_context, schema, page_number, query)\\n cls._add_query_cursors(source_context, schema, page_number, query, log)\\n return query\",\n \" query = cls.get_entity_class().all()\",\n \" cls._add_query_filters(source_context, schema, page_number, query)\",\n \" cls._add_query_orderings(source_context, schema, page_number, query)\",\n \" cls._add_query_cursors(source_context, schema, page_number, query, log)\",\n \" return query\",\n \" FILTER_RE = re.compile('^([a-zA-Z0-9_]+)([<>=]+)(.*)$')\",\n \" SUPPORTED_OPERATIONS = ['=', '<', '>', '>=', '<=']\",\n \" def _add_query_filters(cls, source_context, schema, page_number, query):\\n for filter_spec in source_context.filters:\\n parts = cls.FILTER_RE.match(filter_spec)\\n if not parts:\\n raise ValueError(\\n 'Filter specification \\\"%s\\\" ' % filter_spec +\\n 'is not of the form: <name><op><value>')\\n name, op, value = parts.groups()\",\n \" for filter_spec in source_context.filters:\\n parts = cls.FILTER_RE.match(filter_spec)\\n if not parts:\\n raise ValueError(\\n 'Filter specification \\\"%s\\\" ' % filter_spec +\\n 'is not of the form: <name><op><value>')\\n name, op, value = parts.groups()\\n if op not in cls.SUPPORTED_OPERATIONS:\",\n \" parts = cls.FILTER_RE.match(filter_spec)\",\n \" if not parts:\\n raise ValueError(\\n 'Filter specification \\\"%s\\\" ' % filter_spec +\\n 'is not of the form: <name><op><value>')\",\n \" name, op, value = parts.groups()\",\n \" if op not in cls.SUPPORTED_OPERATIONS:\\n raise ValueError(\\n 'Filter specification \\\"%s\\\" ' % filter_spec +\\n 'uses an unsupported comparison operation \\\"%s\\\"' % op)\",\n \" if name not in schema:\\n raise ValueError(\\n 'Filter specification \\\"%s\\\" ' % filter_spec +\\n 'calls for field \\\"%s\\\" ' % name +\\n 'which is not in the schema for '\\n 'type \\\"%s\\\"' % cls.get_entity_class().__name__)\",\n \" converted_value = transforms.json_to_dict(\\n {name: value},\\n {'properties': {name: schema[name]}})[name]\",\n \" query.filter('%s %s' % (name, op), converted_value)\",\n \" def _add_query_orderings(cls, source_context, schema, page_number, query):\\n for ordering in source_context.orderings:\\n query.order(ordering)\",\n \" for ordering in source_context.orderings:\\n query.order(ordering)\",\n \" query.order(ordering)\",\n \" def _add_query_cursors(cls, source_context, schema, page_number, query,\\n log):\\n start_cursor = source_context.cursors.get(str(page_number), None)\\n end_cursor = source_context.cursors.get(str(page_number + 1), None)\\n log.info('fetch page %d start cursor %s; end cursor %s' %\\n (page_number,\\n 'present' if start_cursor else 'missing',\\n 'present' if end_cursor else 'missing'))\",\n \" start_cursor = source_context.cursors.get(str(page_number), None)\",\n \" end_cursor = source_context.cursors.get(str(page_number + 1), None)\",\n \" log.info('fetch page %d start cursor %s; end cursor %s' %\\n (page_number,\\n 'present' if start_cursor else 'missing',\\n 'present' if end_cursor else 'missing'))\",\n \" query.with_cursor(start_cursor=start_cursor, end_cursor=end_cursor)\",\n \" def _fetch_page(cls, source_context, query, page_number, log):\\n limit = None\\n if (str(page_number + 1)) not in source_context.cursors:\\n limit = source_context.chunk_size\\n log.info('fetch page %d using limit %d' % (page_number, limit))\\n results = query.fetch(limit=limit, read_policy=db.EVENTUAL_CONSISTENCY)\\n if (str(page_number + 1)) not in source_context.cursors:\\n cursor = query.cursor()\",\n \" limit = None\",\n \" if (str(page_number + 1)) not in source_context.cursors:\\n limit = source_context.chunk_size\\n log.info('fetch page %d using limit %d' % (page_number, limit))\",\n \" limit = source_context.chunk_size\",\n \" log.info('fetch page %d using limit %d' % (page_number, limit))\",\n \" results = query.fetch(limit=limit, read_policy=db.EVENTUAL_CONSISTENCY)\",\n \" if (str(page_number + 1)) not in source_context.cursors:\\n cursor = query.cursor()\\n if cursor:\\n if len(results) >= source_context.chunk_size:\\n source_context.cursors[str(page_number + 1)] = cursor\\n log.info('fetch page %d saving end cursor' % page_number)\\n else:\\n log.info('fetch page %d is partial; not saving end cursor'\",\n \" cursor = query.cursor()\",\n \" if cursor:\\n if len(results) >= source_context.chunk_size:\\n source_context.cursors[str(page_number + 1)] = cursor\\n log.info('fetch page %d saving end cursor' % page_number)\\n else:\\n log.info('fetch page %d is partial; not saving end cursor'\\n % page_number)\\n else:\",\n \" if len(results) >= source_context.chunk_size:\\n source_context.cursors[str(page_number + 1)] = cursor\\n log.info('fetch page %d saving end cursor' % page_number)\\n else:\\n log.info('fetch page %d is partial; not saving end cursor'\\n % page_number)\",\n \" source_context.cursors[str(page_number + 1)] = cursor\",\n \" log.info('fetch page %d saving end cursor' % page_number)\",\n \" log.info('fetch page %d is partial; not saving end cursor'\\n % page_number)\",\n \" log.info('fetch_page %d had no end cursor' % page_number)\",\n \" return results\",\n \" def _build_transform_fn(cls, context):\\n if not context.pii_secret:\\n # This value is used in key generation in entities, and so\\n # cannot be None or an empty string; the appengine DB internals\\n # will complain.\\n return lambda pii: 'None'\\n return functools.partial(crypto.hmac_sha_2_256_transform,\\n context.pii_secret)\",\n \" if not context.pii_secret:\\n # This value is used in key generation in entities, and so\\n # cannot be None or an empty string; the appengine DB internals\\n # will complain.\\n return lambda pii: 'None'\",\n \" return lambda pii: 'None'\",\n \" return functools.partial(crypto.hmac_sha_2_256_transform,\\n context.pii_secret)\",\n \"class _DbTableContext(base_types._AbstractContextManager):\\n \\\"\\\"\\\"Save/restore interface for context specific to DbTableRestDataSource.\\n\\n chunk_size=<N>: Specify the number of data items desired per page.\\n If not provided, the default value is\\n base_types._AbstractRestDataSource.RECOMMENDED_MAX_DATA_ITEMS.\\n filters=<filter>: May be specified zero or more times. Each\\n filter must be of the form: <name><comparator><literal>\",\n \" \\\"\\\"\\\"Save/restore interface for context specific to DbTableRestDataSource.\\n\\n chunk_size=<N>: Specify the number of data items desired per page.\\n If not provided, the default value is\\n base_types._AbstractRestDataSource.RECOMMENDED_MAX_DATA_ITEMS.\\n filters=<filter>: May be specified zero or more times. Each\\n filter must be of the form: <name><comparator><literal>\\n Here, <name> is the name of a field on which to filter.\",\n \" class _TableContext1(object):\\n\\n def __init__(self, version, chunk_size, filters, orderings, cursors,\\n pii_secret, send_uncensored_pii_data=False):\\n \\\"\\\"\\\"Set up a context.\\n\\n Note: This plain-old-data class is being used in preference over a\\n collections.namedtuple(), because for export to the JS on a page, we\",\n \" def __init__(self, version, chunk_size, filters, orderings, cursors,\\n pii_secret, send_uncensored_pii_data=False):\\n \\\"\\\"\\\"Set up a context.\\n\\n Note: This plain-old-data class is being used in preference over a\\n collections.namedtuple(), because for export to the JS on a page, we\\n want to be able to \\\"just get all the members\\\", which is done using\\n the __dict__ member. This works fine for namedtuple proper, but\",\n \" \\\"\\\"\\\"Set up a context.\\n\\n Note: This plain-old-data class is being used in preference over a\\n collections.namedtuple(), because for export to the JS on a page, we\\n want to be able to \\\"just get all the members\\\", which is done using\\n the __dict__ member. This works fine for namedtuple proper, but\\n when a namedtuple is serialized (pickled) and then unpickled, it\\n appears to come out as some type that acts like a namedtuple\",\n \" self.version = version\",\n \" self.chunk_size = chunk_size\",\n \" self.filters = filters\",\n \" self.orderings = orderings\",\n \" self.cursors = cursors\",\n \" self.pii_secret = pii_secret\",\n \" self.send_uncensored_pii_data = False\",\n \" def build_from_web_request(cls, params, default_chunk_size):\\n chunk_size = params.get('chunk_size')\\n filters = params.get_all('filter')\\n orderings = params.get_all('ordering')\\n if not chunk_size and not filters and not orderings:\\n return None\\n\\n chunk_size = int(chunk_size or default_chunk_size)\",\n \" chunk_size = params.get('chunk_size')\",\n \" filters = params.get_all('filter')\",\n \" orderings = params.get_all('ordering')\",\n \" if not chunk_size and not filters and not orderings:\\n return None\",\n \" return None\",\n \" chunk_size = int(chunk_size or default_chunk_size)\",\n \" secret = cls._build_secret(params)\",\n \" return cls._TableContext1(1, chunk_size, filters, orderings, {}, secret)\",\n \" def build_from_dict(cls, context_dict):\\n version = context_dict.get('version', -1)\\n if version == 1:\\n return cls._TableContext1(**context_dict)\\n else:\\n raise NotImplementedError(\\n 'Source context version %d is not supported.' % version)\",\n \" version = context_dict.get('version', -1)\",\n \" if version == 1:\\n return cls._TableContext1(**context_dict)\\n else:\\n raise NotImplementedError(\\n 'Source context version %d is not supported.' % version)\",\n \" return cls._TableContext1(**context_dict)\",\n \" def build_blank_default(cls, params, default_chunk_size):\\n secret = cls._build_secret(params)\\n return cls._TableContext1(\\n 1,\\n default_chunk_size,\\n [], # no filters\\n [], # no orderings\\n {}, # no cursors\",\n \" secret = cls._build_secret(params)\",\n \" return cls._TableContext1(\\n 1,\\n default_chunk_size,\\n [], # no filters\\n [], # no orderings\\n {}, # no cursors\\n secret)\",\n \" def save_to_dict(cls, context):\\n # convert namedtuple to regular Python dict\\n return context.__dict__\",\n \" return context.__dict__\",\n \" def get_public_params_for_display(cls, context):\\n ret = copy.copy(context.__dict__)\\n del ret['version']\\n del ret['cursors']\\n del ret['pii_secret']\\n del ret['send_uncensored_pii_data']\\n return ret\",\n \" ret = copy.copy(context.__dict__)\",\n \" return ret\",\n \" def equivalent(cls, new_context, old_context):\\n return (\\n new_context.version == old_context.version and\\n new_context.chunk_size == old_context.chunk_size and\\n new_context.filters == old_context.filters and\\n new_context.orderings == old_context.orderings)\",\n \" return (\\n new_context.version == old_context.version and\\n new_context.chunk_size == old_context.chunk_size and\\n new_context.filters == old_context.filters and\\n new_context.orderings == old_context.orderings)\",\n \" def _build_secret(cls, params):\\n data_source_token = params.get('data_source_token')\\n return crypto.generate_transform_secret_from_xsrf_token(\\n data_source_token,\\n data_sources_utils.DATA_SOURCE_ACCESS_XSRF_ACTION)\",\n \" data_source_token = params.get('data_source_token')\",\n \" return crypto.generate_transform_secret_from_xsrf_token(\\n data_source_token,\\n data_sources_utils.DATA_SOURCE_ACCESS_XSRF_ACTION)\"\n]","isConversational":false}}},{"rowIdx":4789,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Module providing data source contents via REST interface.\"\"\"\n\n__author__ = 'Mike Gainer (mgainer@google.com)'\n\nfrom models.data_sources import base_types\nfrom models.data_sources import source_handler\nfrom models.data_sources import paginated_table\nfrom models.data_sources import registry\n\n# Make these types available at models.data_sources so that client\n# code does not have to know about our internal structure.\n# pylint: disable=protected-access\nAbstractDbTableRestDataSource = paginated_table._AbstractDbTableRestDataSource\nAbstractRestDataSource = base_types._AbstractRestDataSource\nAbstractSmallRestDataSource = base_types._AbstractSmallRestDataSource\nAbstractContextManager = base_types._AbstractContextManager\nDbTableContext = paginated_table._DbTableContext\nNullContextManager = base_types._NullContextManager\nRegistry = registry._Registry\nSynchronousQuery = base_types._SynchronousQuery\n# pylint: enable=protected-access\n\n\ndef _generate_rest_handler(rest_data_source_class):\n\n # (Package protected) pylint: disable=protected-access\n class CurriedRestHandler(source_handler._AbstractRestDataSourceHandler):\n \"\"\"Web handler class curried with class of rest data source.\"\"\"\n\n @classmethod\n def get_data_source_class(cls):\n return rest_data_source_class\n\n return CurriedRestHandler\n\n\ndef get_namespaced_handlers():\n \"\"\"Create URLs + handler classes customized to REST data source types.\n\n Other modules must register their analytics with this module before\n this module is registered. This function produces a list of handlers\n for all REST data source URLs in all analytics.\n\n Returns:\n A (URL, handler) 2-tuple for each rest data source class mentioned\n in any analytic.\n \"\"\"\n\n ret = []\n\n # Convert set into sorted list so WebApp always sees items in the same\n # order. In theory, this shouldn't matter. In practice, the difference\n # between theory and practice may be nonzero, so doing this JIC.\n for clazz in sorted(Registry.get_rest_data_source_classes()):\n ret.append(('/rest/data/%s/items' % clazz.get_name(),\n _generate_rest_handler(clazz)))\n return ret\n"},"vector":{"kind":"list like","value":[[8,0,0.2113,0.0141,0,0.66,0,0,1,0,0,0,0,0,0],[14,0,0.2394,0.0141,0,0.66,0.0667,777,1,0,0,0,0,3,0],[1,0,0.2676,0.0141,0,0.66,0.1333,459,0,1,0,0,459,0,0],[1,0,0.2817,0.0141,0,0.66,0.2,459,0,1,0,0,459,0,0],[1,0,0.2958,0.0141,0,0.66,0.2667,459,0,1,0,0,459,0,0],[1,0,0.3099,0.0141,0,0.66,0.3333,459,0,1,0,0,459,0,0],[14,0,0.3803,0.0141,0,0.66,0.4,744,7,0,0,0,0,0,0],[14,0,0.3944,0.0141,0,0.66,0.4667,35,7,0,0,0,0,0,0],[14,0,0.4085,0.0141,0,0.66,0.5333,780,7,0,0,0,0,0,0],[14,0,0.4225,0.0141,0,0.66,0.6,779,7,0,0,0,0,0,0],[14,0,0.4366,0.0141,0,0.66,0.6667,883,7,0,0,0,0,0,0],[14,0,0.4507,0.0141,0,0.66,0.7333,50,7,0,0,0,0,0,0],[14,0,0.4648,0.0141,0,0.66,0.8,187,7,0,0,0,0,0,0],[14,0,0.4789,0.0141,0,0.66,0.8667,730,7,0,0,0,0,0,0],[2,0,0.6056,0.1549,0,0.66,0.9333,792,0,1,1,0,0,0,0],[3,1,0.6127,0.0845,1,0.89,0,264,0,1,0,0,959,0,0],[8,2,0.5915,0.0141,2,0.87,0,0,1,0,0,0,0,0,0],[2,2,0.6408,0.0282,2,0.87,1,258,0,1,1,0,0,0,0],[13,3,0.6479,0.0141,3,0.95,0,0,2,0,0,0,0,0,0],[13,1,0.6761,0.0141,1,0.89,1,0,2,0,0,0,0,0,0],[2,0,0.8592,0.2958,0,0.66,1,143,0,0,1,0,0,0,5],[8,1,0.7958,0.1408,1,0.39,0,0,1,0,0,0,0,0,0],[14,1,0.8873,0.0141,1,0.39,0.3333,501,0,0,0,0,0,5,0],[6,1,0.9718,0.0423,1,0.39,0.6667,349,3,0,0,0,0,0,5],[8,2,0.9789,0.0282,2,0.86,0,243,3,1,0,0,0,0,3],[13,1,1,0.0141,1,0.39,1,0,2,0,0,0,0,0,0]],"string":"[\n [\n 8,\n 0,\n 0.2113,\n 0.0141,\n 0,\n 0.66,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.2394,\n 0.0141,\n 0,\n 0.66,\n 0.0667,\n 777,\n 1,\n 0,\n 0,\n 0,\n 0,\n 3,\n 0\n ],\n [\n 1,\n 0,\n 0.2676,\n 0.0141,\n 0,\n 0.66,\n 0.1333,\n 459,\n 0,\n 1,\n 0,\n 0,\n 459,\n 0,\n 0\n ],\n [\n 1,\n 0,\n 0.2817,\n 0.0141,\n 0,\n 0.66,\n 0.2,\n 459,\n 0,\n 1,\n 0,\n 0,\n 459,\n 0,\n 0\n ],\n [\n 1,\n 0,\n 0.2958,\n 0.0141,\n 0,\n 0.66,\n 0.2667,\n 459,\n 0,\n 1,\n 0,\n 0,\n 459,\n 0,\n 0\n ],\n [\n 1,\n 0,\n 0.3099,\n 0.0141,\n 0,\n 0.66,\n 0.3333,\n 459,\n 0,\n 1,\n 0,\n 0,\n 459,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.3803,\n 0.0141,\n 0,\n 0.66,\n 0.4,\n 744,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.3944,\n 0.0141,\n 0,\n 0.66,\n 0.4667,\n 35,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4085,\n 0.0141,\n 0,\n 0.66,\n 0.5333,\n 780,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4225,\n 0.0141,\n 0,\n 0.66,\n 0.6,\n 779,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4366,\n 0.0141,\n 0,\n 0.66,\n 0.6667,\n 883,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4507,\n 0.0141,\n 0,\n 0.66,\n 0.7333,\n 50,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4648,\n 0.0141,\n 0,\n 0.66,\n 0.8,\n 187,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.4789,\n 0.0141,\n 0,\n 0.66,\n 0.8667,\n 730,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 0,\n 0.6056,\n 0.1549,\n 0,\n 0.66,\n 0.9333,\n 792,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 3,\n 1,\n 0.6127,\n 0.0845,\n 1,\n 0.89,\n 0,\n 264,\n 0,\n 1,\n 0,\n 0,\n 959,\n 0,\n 0\n ],\n [\n 8,\n 2,\n 0.5915,\n 0.0141,\n 2,\n 0.87,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 2,\n 0.6408,\n 0.0282,\n 2,\n 0.87,\n 1,\n 258,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 3,\n 0.6479,\n 0.0141,\n 3,\n 0.95,\n 0,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 1,\n 0.6761,\n 0.0141,\n 1,\n 0.89,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 0,\n 0.8592,\n 0.2958,\n 0,\n 0.66,\n 1,\n 143,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 5\n ],\n [\n 8,\n 1,\n 0.7958,\n 0.1408,\n 1,\n 0.39,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 1,\n 0.8873,\n 0.0141,\n 1,\n 0.39,\n 0.3333,\n 501,\n 0,\n 0,\n 0,\n 0,\n 0,\n 5,\n 0\n ],\n [\n 6,\n 1,\n 0.9718,\n 0.0423,\n 1,\n 0.39,\n 0.6667,\n 349,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 5\n ],\n [\n 8,\n 2,\n 0.9789,\n 0.0282,\n 2,\n 0.86,\n 0,\n 243,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 13,\n 1,\n 1,\n 0.0141,\n 1,\n 0.39,\n 1,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Module providing data source contents via REST interface.\"\"\"","__author__ = 'Mike Gainer (mgainer@google.com)'","from models.data_sources import base_types","from models.data_sources import source_handler","from models.data_sources import paginated_table","from models.data_sources import registry","AbstractDbTableRestDataSource = paginated_table._AbstractDbTableRestDataSource","AbstractRestDataSource = base_types._AbstractRestDataSource","AbstractSmallRestDataSource = base_types._AbstractSmallRestDataSource","AbstractContextManager = base_types._AbstractContextManager","DbTableContext = paginated_table._DbTableContext","NullContextManager = base_types._NullContextManager","Registry = registry._Registry","SynchronousQuery = base_types._SynchronousQuery","def _generate_rest_handler(rest_data_source_class):\n\n # (Package protected) pylint: disable=protected-access\n class CurriedRestHandler(source_handler._AbstractRestDataSourceHandler):\n \"\"\"Web handler class curried with class of rest data source.\"\"\"\n\n @classmethod\n def get_data_source_class(cls):"," class CurriedRestHandler(source_handler._AbstractRestDataSourceHandler):\n \"\"\"Web handler class curried with class of rest data source.\"\"\"\n\n @classmethod\n def get_data_source_class(cls):\n return rest_data_source_class"," \"\"\"Web handler class curried with class of rest data source.\"\"\""," def get_data_source_class(cls):\n return rest_data_source_class"," return rest_data_source_class"," return CurriedRestHandler","def get_namespaced_handlers():\n \"\"\"Create URLs + handler classes customized to REST data source types.\n\n Other modules must register their analytics with this module before\n this module is registered. This function produces a list of handlers\n for all REST data source URLs in all analytics.\n\n Returns:"," \"\"\"Create URLs + handler classes customized to REST data source types.\n\n Other modules must register their analytics with this module before\n this module is registered. This function produces a list of handlers\n for all REST data source URLs in all analytics.\n\n Returns:\n A (URL, handler) 2-tuple for each rest data source class mentioned"," ret = []"," for clazz in sorted(Registry.get_rest_data_source_classes()):\n ret.append(('/rest/data/%s/items' % clazz.get_name(),\n _generate_rest_handler(clazz)))"," ret.append(('/rest/data/%s/items' % clazz.get_name(),\n _generate_rest_handler(clazz)))"," return ret"],"string":"[\n \"\\\"\\\"\\\"Module providing data source contents via REST interface.\\\"\\\"\\\"\",\n \"__author__ = 'Mike Gainer (mgainer@google.com)'\",\n \"from models.data_sources import base_types\",\n \"from models.data_sources import source_handler\",\n \"from models.data_sources import paginated_table\",\n \"from models.data_sources import registry\",\n \"AbstractDbTableRestDataSource = paginated_table._AbstractDbTableRestDataSource\",\n \"AbstractRestDataSource = base_types._AbstractRestDataSource\",\n \"AbstractSmallRestDataSource = base_types._AbstractSmallRestDataSource\",\n \"AbstractContextManager = base_types._AbstractContextManager\",\n \"DbTableContext = paginated_table._DbTableContext\",\n \"NullContextManager = base_types._NullContextManager\",\n \"Registry = registry._Registry\",\n \"SynchronousQuery = base_types._SynchronousQuery\",\n \"def _generate_rest_handler(rest_data_source_class):\\n\\n # (Package protected) pylint: disable=protected-access\\n class CurriedRestHandler(source_handler._AbstractRestDataSourceHandler):\\n \\\"\\\"\\\"Web handler class curried with class of rest data source.\\\"\\\"\\\"\\n\\n @classmethod\\n def get_data_source_class(cls):\",\n \" class CurriedRestHandler(source_handler._AbstractRestDataSourceHandler):\\n \\\"\\\"\\\"Web handler class curried with class of rest data source.\\\"\\\"\\\"\\n\\n @classmethod\\n def get_data_source_class(cls):\\n return rest_data_source_class\",\n \" \\\"\\\"\\\"Web handler class curried with class of rest data source.\\\"\\\"\\\"\",\n \" def get_data_source_class(cls):\\n return rest_data_source_class\",\n \" return rest_data_source_class\",\n \" return CurriedRestHandler\",\n \"def get_namespaced_handlers():\\n \\\"\\\"\\\"Create URLs + handler classes customized to REST data source types.\\n\\n Other modules must register their analytics with this module before\\n this module is registered. This function produces a list of handlers\\n for all REST data source URLs in all analytics.\\n\\n Returns:\",\n \" \\\"\\\"\\\"Create URLs + handler classes customized to REST data source types.\\n\\n Other modules must register their analytics with this module before\\n this module is registered. This function produces a list of handlers\\n for all REST data source URLs in all analytics.\\n\\n Returns:\\n A (URL, handler) 2-tuple for each rest data source class mentioned\",\n \" ret = []\",\n \" for clazz in sorted(Registry.get_rest_data_source_classes()):\\n ret.append(('/rest/data/%s/items' % clazz.get_name(),\\n _generate_rest_handler(clazz)))\",\n \" ret.append(('/rest/data/%s/items' % clazz.get_name(),\\n _generate_rest_handler(clazz)))\",\n \" return ret\"\n]","isConversational":false}}},{"rowIdx":4790,"cells":{"code":{"kind":"string","value":"# Copyright 2014 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"ETL testing utilities.\"\"\"\n\nimport copy\nimport cStringIO\nimport logging\nimport os\nfrom controllers import sites\nfrom tests.functional import actions\nfrom tools.etl import etl\nfrom tools.etl import remote\n\n\nclass EtlTestBase(actions.TestBase):\n # Allow access to protected members under test.\n # pylint: disable=protected-access\n\n def setUp(self):\n \"\"\"Configures EtlMainTestCase.\"\"\"\n super(EtlTestBase, self).setUp()\n self.test_environ = copy.deepcopy(os.environ)\n # In etl.main, use test auth scheme to avoid interactive login.\n self.test_environ['SERVER_SOFTWARE'] = remote.TEST_SERVER_SOFTWARE\n self.url_prefix = '/test'\n self.namespace = 'ns_test'\n self.raw = 'course:%s::%s' % (self.url_prefix, self.namespace)\n self.swap(os, 'environ', self.test_environ)\n sites.setup_courses(self.raw + ', course:/:/')\n\n self.log_stream = cStringIO.StringIO()\n self.old_log_handlers = list(etl._LOG.handlers)\n etl._LOG.handlers = [logging.StreamHandler(self.log_stream)]\n\n def tearDown(self):\n sites.reset_courses()\n etl._LOG.handlers = self.old_log_handlers\n super(EtlTestBase, self).tearDown()\n\n def get_log(self):\n self.log_stream.flush()\n return self.log_stream.getvalue()\n\n\nclass FakeEnvironment(object):\n \"\"\"Temporary fake tools.etl.remote.Evironment.\n\n Bypasses making a remote_api connection because webtest can't handle it and\n we don't want to bring up a local server for our functional tests. When this\n fake is used, the in-process datastore stub will handle RPCs.\n\n TODO(johncox): find a way to make webtest successfully emulate the\n remote_api endpoint and get rid of this fake.\n \"\"\"\n\n def __init__(self, application_id, server, path=None):\n self._appication_id = application_id\n self._path = path\n self._server = server\n\n def establish(self):\n pass\n"},"vector":{"kind":"list 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0,\n 10,\n 1\n ],\n [\n 3,\n 0,\n 0.8851,\n 0.2432,\n 0,\n 0.66,\n 1,\n 51,\n 0,\n 2,\n 0,\n 0,\n 186,\n 0,\n 0\n ],\n [\n 8,\n 1,\n 0.8378,\n 0.1216,\n 1,\n 0.26,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9392,\n 0.0541,\n 1,\n 0.26,\n 0.5,\n 555,\n 0,\n 4,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 2,\n 0.9324,\n 0.0135,\n 2,\n 0.08,\n 0,\n 782,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 2,\n 0.9459,\n 0.0135,\n 2,\n 0.08,\n 0.5,\n 249,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 2,\n 0.9595,\n 0.0135,\n 2,\n 0.08,\n 1,\n 429,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9932,\n 0.027,\n 1,\n 0.26,\n 1,\n 709,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"ETL testing utilities.\"\"\"","import copy","import cStringIO","import logging","import os","from controllers import sites","from tests.functional import actions","from tools.etl import etl","from tools.etl import remote","class EtlTestBase(actions.TestBase):\n # Allow access to protected members under test.\n # pylint: disable=protected-access\n\n def setUp(self):\n \"\"\"Configures EtlMainTestCase.\"\"\"\n super(EtlTestBase, self).setUp()\n self.test_environ = copy.deepcopy(os.environ)"," def setUp(self):\n \"\"\"Configures EtlMainTestCase.\"\"\"\n super(EtlTestBase, self).setUp()\n self.test_environ = copy.deepcopy(os.environ)\n # In etl.main, use test auth scheme to avoid interactive login.\n self.test_environ['SERVER_SOFTWARE'] = remote.TEST_SERVER_SOFTWARE\n self.url_prefix = '/test'\n self.namespace = 'ns_test'"," \"\"\"Configures EtlMainTestCase.\"\"\""," super(EtlTestBase, self).setUp()"," self.test_environ = copy.deepcopy(os.environ)"," self.test_environ['SERVER_SOFTWARE'] = remote.TEST_SERVER_SOFTWARE"," self.url_prefix = '/test'"," self.namespace = 'ns_test'"," self.raw = 'course:%s::%s' % (self.url_prefix, self.namespace)"," self.swap(os, 'environ', self.test_environ)"," sites.setup_courses(self.raw + ', course:/:/')"," self.log_stream = cStringIO.StringIO()"," self.old_log_handlers = list(etl._LOG.handlers)"," etl._LOG.handlers = [logging.StreamHandler(self.log_stream)]"," def tearDown(self):\n sites.reset_courses()\n etl._LOG.handlers = self.old_log_handlers\n super(EtlTestBase, self).tearDown()"," sites.reset_courses()"," etl._LOG.handlers = self.old_log_handlers"," super(EtlTestBase, self).tearDown()"," def get_log(self):\n self.log_stream.flush()\n return self.log_stream.getvalue()"," self.log_stream.flush()"," return self.log_stream.getvalue()","class FakeEnvironment(object):\n \"\"\"Temporary fake tools.etl.remote.Evironment.\n\n Bypasses making a remote_api connection because webtest can't handle it and\n we don't want to bring up a local server for our functional tests. When this\n fake is used, the in-process datastore stub will handle RPCs.\n\n TODO(johncox): find a way to make webtest successfully emulate the"," \"\"\"Temporary fake tools.etl.remote.Evironment.\n\n Bypasses making a remote_api connection because webtest can't handle it and\n we don't want to bring up a local server for our functional tests. When this\n fake is used, the in-process datastore stub will handle RPCs.\n\n TODO(johncox): find a way to make webtest successfully emulate the\n remote_api endpoint and get rid of this fake."," def __init__(self, application_id, server, path=None):\n self._appication_id = application_id\n self._path = path\n self._server = server"," self._appication_id = application_id"," self._path = path"," self._server = server"," def establish(self):\n pass"],"string":"[\n \"\\\"\\\"\\\"ETL testing utilities.\\\"\\\"\\\"\",\n \"import copy\",\n \"import cStringIO\",\n \"import logging\",\n \"import os\",\n \"from controllers import sites\",\n \"from tests.functional import actions\",\n \"from tools.etl import etl\",\n \"from tools.etl import remote\",\n \"class EtlTestBase(actions.TestBase):\\n # Allow access to protected members under test.\\n # pylint: disable=protected-access\\n\\n def setUp(self):\\n \\\"\\\"\\\"Configures EtlMainTestCase.\\\"\\\"\\\"\\n super(EtlTestBase, self).setUp()\\n self.test_environ = copy.deepcopy(os.environ)\",\n \" def setUp(self):\\n \\\"\\\"\\\"Configures EtlMainTestCase.\\\"\\\"\\\"\\n super(EtlTestBase, self).setUp()\\n self.test_environ = copy.deepcopy(os.environ)\\n # In etl.main, use test auth scheme to avoid interactive login.\\n self.test_environ['SERVER_SOFTWARE'] = remote.TEST_SERVER_SOFTWARE\\n self.url_prefix = '/test'\\n self.namespace = 'ns_test'\",\n \" \\\"\\\"\\\"Configures EtlMainTestCase.\\\"\\\"\\\"\",\n \" super(EtlTestBase, self).setUp()\",\n \" self.test_environ = copy.deepcopy(os.environ)\",\n \" self.test_environ['SERVER_SOFTWARE'] = remote.TEST_SERVER_SOFTWARE\",\n \" self.url_prefix = '/test'\",\n \" self.namespace = 'ns_test'\",\n \" self.raw = 'course:%s::%s' % (self.url_prefix, self.namespace)\",\n \" self.swap(os, 'environ', self.test_environ)\",\n \" sites.setup_courses(self.raw + ', course:/:/')\",\n \" self.log_stream = cStringIO.StringIO()\",\n \" self.old_log_handlers = list(etl._LOG.handlers)\",\n \" etl._LOG.handlers = [logging.StreamHandler(self.log_stream)]\",\n \" def tearDown(self):\\n sites.reset_courses()\\n etl._LOG.handlers = self.old_log_handlers\\n super(EtlTestBase, self).tearDown()\",\n \" sites.reset_courses()\",\n \" etl._LOG.handlers = self.old_log_handlers\",\n \" super(EtlTestBase, self).tearDown()\",\n \" def get_log(self):\\n self.log_stream.flush()\\n return self.log_stream.getvalue()\",\n \" self.log_stream.flush()\",\n \" return self.log_stream.getvalue()\",\n \"class FakeEnvironment(object):\\n \\\"\\\"\\\"Temporary fake tools.etl.remote.Evironment.\\n\\n Bypasses making a remote_api connection because webtest can't handle it and\\n we don't want to bring up a local server for our functional tests. When this\\n fake is used, the in-process datastore stub will handle RPCs.\\n\\n TODO(johncox): find a way to make webtest successfully emulate the\",\n \" \\\"\\\"\\\"Temporary fake tools.etl.remote.Evironment.\\n\\n Bypasses making a remote_api connection because webtest can't handle it and\\n we don't want to bring up a local server for our functional tests. When this\\n fake is used, the in-process datastore stub will handle RPCs.\\n\\n TODO(johncox): find a way to make webtest successfully emulate the\\n remote_api endpoint and get rid of this fake.\",\n \" def __init__(self, application_id, server, path=None):\\n self._appication_id = application_id\\n self._path = path\\n self._server = server\",\n \" self._appication_id = application_id\",\n \" self._path = path\",\n \" self._server = server\",\n \" def establish(self):\\n pass\"\n]","isConversational":false}}},{"rowIdx":4791,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Remote environment manager for extract-transform-load utilities.\"\"\"\n\n__author__ = [\n 'johncox@google.com',\n]\n\nimport os\nimport sys\nimport appengine_config\n\n# Override SERVER_SOFTWARE before doing any App Engine imports so import-time\n# detection of dev mode, done against SERVER_SOFTWARE of 'Development*', fails.\n# Once imports are done, this environment variable can be reset as needed (for\n# tests, etc.).\nSERVER_SOFTWARE = 'Production Emulation'\nif appengine_config.PRODUCTION_MODE:\n sys.exit('Running etl/tools/remote.py in production is not supported.')\nos.environ['SERVER_SOFTWARE'] = SERVER_SOFTWARE\n\nfrom google.appengine.ext.remote_api import remote_api_stub\nfrom google.appengine.tools import appengine_rpc\nfrom google.appengine.tools import remote_api_shell\n\n# String. Used to detect appspot.com servers.\n_APPSPOT_SERVER_SUFFIX = 'appspot.com'\n# String. Password used when a password is not necessary.\n_BOGUS_PASSWORD = 'bogus_password'\n# String. Infix for google.com application ids.\n_GOOGLE_APPLICATION_INFIX = 'google.com'\n# String. Prefix App Engine uses application ids in the dev appserver.\n_LOCAL_APPLICATION_ID_PREFIX = 'dev~'\n# String. Prefix used to detect if a server is running locally.\n_LOCAL_SERVER_PREFIX = 'localhost'\n# String. Prefix App Engine uses for application ids in production.\n_REMOTE_APPLICATION_ID_PREFIX = 's~'\n# String. Email address used unless os.environ['USER_EMAIL'] is set in tests.\n_TEST_EMAIL = 'test@example.com'\n# String. os.ENVIRON['SERVER_SOFTWARE'] value that indicates we're running under\n# the test environment.\nTEST_SERVER_SOFTWARE = 'Test'\n\n\nclass Error(Exception):\n \"\"\"Base error type.\"\"\"\n\n\nclass EnvironmentAuthenticationError(Error):\n \"\"\"Raised when establishing an environment fails due to bad credentials.\"\"\"\n\n\nclass Environment(object):\n \"\"\"Sets up the execution environment to use remote_api for RPCs.\n\n As with any use of remote_api, this has three important caveats:\n\n 1. By going through the Remote API rather than your application's handlers,\n you are bypassing any business logic in those handlers. It is easy in\n this way to accidentally corrupt the system receiving your RPCs.\n 2. There is no guarantee that the code running on the system receiving your\n RPCs is the same version as the code running locally. It is easy to have\n version skew that corrupts the destination system.\n 3. Execution is markedly slower than running in production.\n \"\"\"\n\n def __init__(\n self, application_id, server, path='/_ah/remote_api'):\n \"\"\"Constructs a new Environment.\n\n Args:\n application_id: string. The application id of the environment\n (myapp).\n server: string. The full name of the server to connect to\n (myurl.appspot.com).\n path: string. The URL of your app's remote api entry point.\n \"\"\"\n self._application_id = application_id\n self._path = path\n self._server = server\n\n @staticmethod\n def _dev_appserver_auth_func():\n \"\"\"Auth function to run for dev_appserver (bogus password).\"\"\"\n return raw_input('Email: '), _BOGUS_PASSWORD\n\n @staticmethod\n def _test_auth_func():\n \"\"\"Auth function to run in tests (bogus username and password).\"\"\"\n return os.environ.get('USER_EMAIL', _TEST_EMAIL), _BOGUS_PASSWORD\n\n def _get_auth_func(self):\n \"\"\"Returns authentication function for the remote API.\"\"\"\n if os.environ.get('SERVER_SOFTWARE', '').startswith(\n TEST_SERVER_SOFTWARE):\n return self._test_auth_func\n elif self._is_localhost():\n return self._dev_appserver_auth_func\n else:\n return remote_api_shell.auth_func\n\n def _get_internal_application_id(self):\n \"\"\"Returns string containing App Engine's internal id representation.\"\"\"\n prefix = _REMOTE_APPLICATION_ID_PREFIX\n if self._is_localhost():\n prefix = _LOCAL_APPLICATION_ID_PREFIX\n elif not self._is_appspot():\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)\n return prefix + self._application_id\n\n def _get_secure(self):\n \"\"\"Returns boolean indicating whether or not to use https.\"\"\"\n return not self._is_localhost()\n\n def _is_appspot(self):\n \"\"\"Returns True iff server is appspot.com.\"\"\"\n return self._server.endswith(_APPSPOT_SERVER_SUFFIX)\n\n def _is_localhost(self):\n \"\"\"Returns True if environment is dev_appserver and False otherwise.\"\"\"\n return self._server.startswith(_LOCAL_SERVER_PREFIX)\n\n def establish(self):\n \"\"\"Establishes the environment for RPC execution.\"\"\"\n try:\n remote_api_stub.ConfigureRemoteApi(\n self._get_internal_application_id(), self._path,\n self._get_auth_func(), servername=self._server,\n save_cookies=True, secure=self._get_secure(),\n rpc_server_factory=appengine_rpc.HttpRpcServer)\n remote_api_stub.MaybeInvokeAuthentication()\n except AttributeError:\n raise EnvironmentAuthenticationError\n"},"vector":{"kind":"list like","value":[[8,0,0.1034,0.0069,0,0.66,0,0,1,0,0,0,0,0,0],[14,0,0.1241,0.0207,0,0.66,0.0476,777,0,0,0,0,0,5,0],[1,0,0.1448,0.0069,0,0.66,0.0952,688,0,1,0,0,688,0,0],[1,0,0.1517,0.0069,0,0.66,0.1429,509,0,1,0,0,509,0,0],[1,0,0.1586,0.0069,0,0.66,0.1905,927,0,1,0,0,927,0,0],[14,0,0.2,0.0069,0,0.66,0.2381,528,1,0,0,0,0,3,0],[4,0,0.2103,0.0138,0,0.66,0.2857,0,7,0,0,0,0,0,1],[8,1,0.2138,0.0069,1,0.85,0,436,3,1,0,0,0,0,1],[14,0,0.2207,0.0069,0,0.66,0.3333,0,2,0,0,0,0,0,0],[1,0,0.2345,0.0069,0,0.66,0.381,61,0,1,0,0,61,0,0],[1,0,0.2414,0.0069,0,0.66,0.4286,225,0,1,0,0,225,0,0],[1,0,0.2483,0.0069,0,0.66,0.4762,225,0,1,0,0,225,0,0],[14,0,0.269,0.0069,0,0.66,0.5238,450,1,0,0,0,0,3,0],[14,0,0.2828,0.0069,0,0.66,0.5714,413,1,0,0,0,0,3,0],[14,0,0.2966,0.0069,0,0.66,0.619,699,1,0,0,0,0,3,0],[14,0,0.3103,0.0069,0,0.66,0.6667,279,1,0,0,0,0,3,0],[14,0,0.3241,0.0069,0,0.66,0.7143,777,1,0,0,0,0,3,0],[14,0,0.3379,0.0069,0,0.66,0.7619,517,1,0,0,0,0,3,0],[14,0,0.3517,0.0069,0,0.66,0.8095,691,1,0,0,0,0,3,0],[14,0,0.3724,0.0069,0,0.66,0.8571,490,1,0,0,0,0,3,0],[3,0,0.3966,0.0138,0,0.66,0.9048,529,0,0,0,0,645,0,0],[8,1,0.4,0.0069,1,0.82,0,0,1,0,0,0,0,0,0],[3,0,0.4241,0.0138,0,0.66,0.9524,49,0,0,0,0,529,0,0],[8,1,0.4276,0.0069,1,0.88,0,0,1,0,0,0,0,0,0],[3,0,0.7241,0.5586,0,0.66,1,947,0,9,0,0,186,0,15],[8,1,0.4931,0.0828,1,0.4,0,0,1,0,0,0,0,0,0],[2,1,0.5897,0.0966,1,0.4,0.1111,555,0,4,0,0,0,0,0],[8,2,0.5862,0.0621,2,0.34,0,0,1,0,0,0,0,0,0],[14,2,0.6207,0.0069,2,0.34,0.3333,1,2,0,0,0,0,0,0],[14,2,0.6276,0.0069,2,0.34,0.6667,249,2,0,0,0,0,0,0],[14,2,0.6345,0.0069,2,0.34,1,429,2,0,0,0,0,0,0],[2,1,0.6621,0.0207,1,0.4,0.2222,362,0,0,1,0,0,0,1],[8,2,0.6621,0.0069,2,0.7,0,0,1,0,0,0,0,0,0],[13,2,0.669,0.0069,2,0.7,1,0,0,0,0,0,0,8,1],[2,1,0.6966,0.0207,1,0.4,0.3333,384,0,0,1,0,0,0,1],[8,2,0.6966,0.0069,2,0.96,0,0,1,0,0,0,0,0,0],[13,2,0.7034,0.0069,2,0.96,1,0,0,0,0,0,0,8,1],[2,1,0.7448,0.0621,1,0.4,0.4444,788,0,1,1,0,0,0,3],[8,2,0.7241,0.0069,2,0.71,0,0,1,0,0,0,0,0,0],[4,2,0.7517,0.0483,2,0.71,1,0,3,0,0,0,0,0,3],[13,3,0.7448,0.0069,3,0.03,0,0,7,0,0,0,0,0,0],[4,3,0.7621,0.0276,3,0.03,1,0,3,0,0,0,0,0,1],[13,4,0.7586,0.0069,4,0.73,0,0,7,0,0,0,0,0,0],[13,4,0.7724,0.0069,4,0.73,1,0,7,0,0,0,0,0,0],[2,1,0.8103,0.0552,1,0.4,0.5556,987,0,1,1,0,0,0,2],[8,2,0.7931,0.0069,2,0.76,0,0,1,0,0,0,0,0,0],[14,2,0.8,0.0069,2,0.76,0.3333,284,2,0,0,0,0,0,0],[4,2,0.8172,0.0276,2,0.76,0.6667,0,3,0,0,0,0,0,2],[14,3,0.8138,0.0069,3,0.9,0,284,2,0,0,0,0,0,0],[4,3,0.8241,0.0138,3,0.9,1,0,0,0,0,0,0,0,1],[14,4,0.8276,0.0069,4,0.58,0,284,4,0,0,0,0,0,0],[13,2,0.8345,0.0069,2,0.76,1,0,4,0,0,0,0,0,0],[2,1,0.8552,0.0207,1,0.4,0.6667,195,0,1,1,0,0,0,1],[8,2,0.8552,0.0069,2,0.06,0,0,1,0,0,0,0,0,0],[13,2,0.8621,0.0069,2,0.06,1,0,0,0,0,0,0,0,1],[2,1,0.8828,0.0207,1,0.4,0.7778,278,0,1,1,0,0,0,1],[8,2,0.8828,0.0069,2,0.29,0,0,1,0,0,0,0,0,0],[13,2,0.8897,0.0069,2,0.29,1,0,3,0,0,0,0,10,1],[2,1,0.9103,0.0207,1,0.4,0.8889,545,0,1,1,0,0,0,1],[8,2,0.9103,0.0069,2,0.27,0,0,1,0,0,0,0,0,0],[13,2,0.9172,0.0069,2,0.27,1,0,3,0,0,0,0,10,1],[2,1,0.9655,0.0759,1,0.4,1,709,0,1,0,0,0,0,5],[8,2,0.9379,0.0069,2,0.56,0,0,1,0,0,0,0,0,0],[7,2,0.9724,0.0621,2,0.56,1,0,0,1,0,0,0,0,5],[8,3,0.9655,0.0345,3,0.06,0,279,3,7,0,0,0,0,4],[8,3,0.9862,0.0069,3,0.06,1,820,3,0,0,0,0,0,1]],"string":"[\n [\n 8,\n 0,\n 0.1034,\n 0.0069,\n 0,\n 0.66,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.1241,\n 0.0207,\n 0,\n 0.66,\n 0.0476,\n 777,\n 0,\n 0,\n 0,\n 0,\n 0,\n 5,\n 0\n ],\n [\n 1,\n 0,\n 0.1448,\n 0.0069,\n 0,\n 0.66,\n 0.0952,\n 688,\n 0,\n 1,\n 0,\n 0,\n 688,\n 0,\n 0\n ],\n [\n 1,\n 0,\n 0.1517,\n 0.0069,\n 0,\n 0.66,\n 0.1429,\n 509,\n 0,\n 1,\n 0,\n 0,\n 509,\n 0,\n 0\n ],\n [\n 1,\n 0,\n 0.1586,\n 0.0069,\n 0,\n 0.66,\n 0.1905,\n 927,\n 0,\n 1,\n 0,\n 0,\n 927,\n 0,\n 0\n ],\n [\n 14,\n 0,\n 0.2,\n 0.0069,\n 0,\n 0.66,\n 0.2381,\n 528,\n 1,\n 0,\n 0,\n 0,\n 0,\n 3,\n 0\n ],\n [\n 4,\n 0,\n 0.2103,\n 0.0138,\n 0,\n 0.66,\n 0.2857,\n 0,\n 7,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 1,\n 0.2138,\n 0.0069,\n 1,\n 0.85,\n 0,\n 436,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 14,\n 0,\n 0.2207,\n 0.0069,\n 0,\n 0.66,\n 0.3333,\n 0,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 1,\n 0,\n 0.2345,\n 0.0069,\n 0,\n 0.66,\n 0.381,\n 61,\n 0,\n 1,\n 0,\n 0,\n 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0,\n 0,\n 0,\n 1\n ],\n [\n 14,\n 4,\n 0.8276,\n 0.0069,\n 4,\n 0.58,\n 0,\n 284,\n 4,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.8345,\n 0.0069,\n 2,\n 0.76,\n 1,\n 0,\n 4,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.8552,\n 0.0207,\n 1,\n 0.4,\n 0.6667,\n 195,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.8552,\n 0.0069,\n 2,\n 0.06,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.8621,\n 0.0069,\n 2,\n 0.06,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 2,\n 1,\n 0.8828,\n 0.0207,\n 1,\n 0.4,\n 0.7778,\n 278,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.8828,\n 0.0069,\n 2,\n 0.29,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.8897,\n 0.0069,\n 2,\n 0.29,\n 1,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 10,\n 1\n ],\n [\n 2,\n 1,\n 0.9103,\n 0.0207,\n 1,\n 0.4,\n 0.8889,\n 545,\n 0,\n 1,\n 1,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.9103,\n 0.0069,\n 2,\n 0.27,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 13,\n 2,\n 0.9172,\n 0.0069,\n 2,\n 0.27,\n 1,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 10,\n 1\n ],\n [\n 2,\n 1,\n 0.9655,\n 0.0759,\n 1,\n 0.4,\n 1,\n 709,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 5\n ],\n [\n 8,\n 2,\n 0.9379,\n 0.0069,\n 2,\n 0.56,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 7,\n 2,\n 0.9724,\n 0.0621,\n 2,\n 0.56,\n 1,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 5\n ],\n [\n 8,\n 3,\n 0.9655,\n 0.0345,\n 3,\n 0.06,\n 0,\n 279,\n 3,\n 7,\n 0,\n 0,\n 0,\n 0,\n 4\n ],\n [\n 8,\n 3,\n 0.9862,\n 0.0069,\n 3,\n 0.06,\n 1,\n 820,\n 3,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Remote environment manager for extract-transform-load utilities.\"\"\"","__author__ = [\n 'johncox@google.com',\n]","import os","import sys","import appengine_config","SERVER_SOFTWARE = 'Production Emulation'","if appengine_config.PRODUCTION_MODE:\n sys.exit('Running etl/tools/remote.py in production is not supported.')"," sys.exit('Running etl/tools/remote.py in production is not supported.')","os.environ['SERVER_SOFTWARE'] = SERVER_SOFTWARE","from google.appengine.ext.remote_api import remote_api_stub","from google.appengine.tools import appengine_rpc","from google.appengine.tools import remote_api_shell","_APPSPOT_SERVER_SUFFIX = 'appspot.com'","_BOGUS_PASSWORD = 'bogus_password'","_GOOGLE_APPLICATION_INFIX = 'google.com'","_LOCAL_APPLICATION_ID_PREFIX = 'dev~'","_LOCAL_SERVER_PREFIX = 'localhost'","_REMOTE_APPLICATION_ID_PREFIX = 's~'","_TEST_EMAIL = 'test@example.com'","TEST_SERVER_SOFTWARE = 'Test'","class Error(Exception):\n \"\"\"Base error type.\"\"\""," \"\"\"Base error type.\"\"\"","class EnvironmentAuthenticationError(Error):\n \"\"\"Raised when establishing an environment fails due to bad credentials.\"\"\""," \"\"\"Raised when establishing an environment fails due to bad credentials.\"\"\"","class Environment(object):\n \"\"\"Sets up the execution environment to use remote_api for RPCs.\n\n As with any use of remote_api, this has three important caveats:\n\n 1. By going through the Remote API rather than your application's handlers,\n you are bypassing any business logic in those handlers. It is easy in\n this way to accidentally corrupt the system receiving your RPCs."," \"\"\"Sets up the execution environment to use remote_api for RPCs.\n\n As with any use of remote_api, this has three important caveats:\n\n 1. By going through the Remote API rather than your application's handlers,\n you are bypassing any business logic in those handlers. It is easy in\n this way to accidentally corrupt the system receiving your RPCs.\n 2. There is no guarantee that the code running on the system receiving your"," def __init__(\n self, application_id, server, path='/_ah/remote_api'):\n \"\"\"Constructs a new Environment.\n\n Args:\n application_id: string. The application id of the environment\n (myapp).\n server: string. The full name of the server to connect to"," \"\"\"Constructs a new Environment.\n\n Args:\n application_id: string. The application id of the environment\n (myapp).\n server: string. The full name of the server to connect to\n (myurl.appspot.com).\n path: string. The URL of your app's remote api entry point."," self._application_id = application_id"," self._path = path"," self._server = server"," def _dev_appserver_auth_func():\n \"\"\"Auth function to run for dev_appserver (bogus password).\"\"\"\n return raw_input('Email: '), _BOGUS_PASSWORD"," \"\"\"Auth function to run for dev_appserver (bogus password).\"\"\""," return raw_input('Email: '), _BOGUS_PASSWORD"," def _test_auth_func():\n \"\"\"Auth function to run in tests (bogus username and password).\"\"\"\n return os.environ.get('USER_EMAIL', _TEST_EMAIL), _BOGUS_PASSWORD"," \"\"\"Auth function to run in tests (bogus username and password).\"\"\""," return os.environ.get('USER_EMAIL', _TEST_EMAIL), _BOGUS_PASSWORD"," def _get_auth_func(self):\n \"\"\"Returns authentication function for the remote API.\"\"\"\n if os.environ.get('SERVER_SOFTWARE', '').startswith(\n TEST_SERVER_SOFTWARE):\n return self._test_auth_func\n elif self._is_localhost():\n return self._dev_appserver_auth_func\n else:"," \"\"\"Returns authentication function for the remote API.\"\"\""," if os.environ.get('SERVER_SOFTWARE', '').startswith(\n TEST_SERVER_SOFTWARE):\n return self._test_auth_func\n elif self._is_localhost():\n return self._dev_appserver_auth_func\n else:\n return remote_api_shell.auth_func"," return self._test_auth_func"," elif self._is_localhost():\n return self._dev_appserver_auth_func\n else:\n return remote_api_shell.auth_func"," return self._dev_appserver_auth_func"," return remote_api_shell.auth_func"," def _get_internal_application_id(self):\n \"\"\"Returns string containing App Engine's internal id representation.\"\"\"\n prefix = _REMOTE_APPLICATION_ID_PREFIX\n if self._is_localhost():\n prefix = _LOCAL_APPLICATION_ID_PREFIX\n elif not self._is_appspot():\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)\n return prefix + self._application_id"," \"\"\"Returns string containing App Engine's internal id representation.\"\"\""," prefix = _REMOTE_APPLICATION_ID_PREFIX"," if self._is_localhost():\n prefix = _LOCAL_APPLICATION_ID_PREFIX\n elif not self._is_appspot():\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)"," prefix = _LOCAL_APPLICATION_ID_PREFIX"," elif not self._is_appspot():\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)"," prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)"," return prefix + self._application_id"," def _get_secure(self):\n \"\"\"Returns boolean indicating whether or not to use https.\"\"\"\n return not self._is_localhost()"," \"\"\"Returns boolean indicating whether or not to use https.\"\"\""," return not self._is_localhost()"," def _is_appspot(self):\n \"\"\"Returns True iff server is appspot.com.\"\"\"\n return self._server.endswith(_APPSPOT_SERVER_SUFFIX)"," \"\"\"Returns True iff server is appspot.com.\"\"\""," return self._server.endswith(_APPSPOT_SERVER_SUFFIX)"," def _is_localhost(self):\n \"\"\"Returns True if environment is dev_appserver and False otherwise.\"\"\"\n return self._server.startswith(_LOCAL_SERVER_PREFIX)"," \"\"\"Returns True if environment is dev_appserver and False otherwise.\"\"\""," return self._server.startswith(_LOCAL_SERVER_PREFIX)"," def establish(self):\n \"\"\"Establishes the environment for RPC execution.\"\"\"\n try:\n remote_api_stub.ConfigureRemoteApi(\n self._get_internal_application_id(), self._path,\n self._get_auth_func(), servername=self._server,\n save_cookies=True, secure=self._get_secure(),\n rpc_server_factory=appengine_rpc.HttpRpcServer)"," \"\"\"Establishes the environment for RPC execution.\"\"\""," try:\n remote_api_stub.ConfigureRemoteApi(\n self._get_internal_application_id(), self._path,\n self._get_auth_func(), servername=self._server,\n save_cookies=True, secure=self._get_secure(),\n rpc_server_factory=appengine_rpc.HttpRpcServer)\n remote_api_stub.MaybeInvokeAuthentication()\n except AttributeError:"," remote_api_stub.ConfigureRemoteApi(\n self._get_internal_application_id(), self._path,\n self._get_auth_func(), servername=self._server,\n save_cookies=True, secure=self._get_secure(),\n rpc_server_factory=appengine_rpc.HttpRpcServer)"," remote_api_stub.MaybeInvokeAuthentication()"],"string":"[\n \"\\\"\\\"\\\"Remote environment manager for extract-transform-load utilities.\\\"\\\"\\\"\",\n \"__author__ = [\\n 'johncox@google.com',\\n]\",\n \"import os\",\n \"import sys\",\n \"import appengine_config\",\n \"SERVER_SOFTWARE = 'Production Emulation'\",\n \"if appengine_config.PRODUCTION_MODE:\\n sys.exit('Running etl/tools/remote.py in production is not supported.')\",\n \" sys.exit('Running etl/tools/remote.py in production is not supported.')\",\n \"os.environ['SERVER_SOFTWARE'] = SERVER_SOFTWARE\",\n \"from google.appengine.ext.remote_api import remote_api_stub\",\n \"from google.appengine.tools import appengine_rpc\",\n \"from google.appengine.tools import remote_api_shell\",\n \"_APPSPOT_SERVER_SUFFIX = 'appspot.com'\",\n \"_BOGUS_PASSWORD = 'bogus_password'\",\n \"_GOOGLE_APPLICATION_INFIX = 'google.com'\",\n \"_LOCAL_APPLICATION_ID_PREFIX = 'dev~'\",\n \"_LOCAL_SERVER_PREFIX = 'localhost'\",\n \"_REMOTE_APPLICATION_ID_PREFIX = 's~'\",\n \"_TEST_EMAIL = 'test@example.com'\",\n \"TEST_SERVER_SOFTWARE = 'Test'\",\n \"class Error(Exception):\\n \\\"\\\"\\\"Base error type.\\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Base error type.\\\"\\\"\\\"\",\n \"class EnvironmentAuthenticationError(Error):\\n \\\"\\\"\\\"Raised when establishing an environment fails due to bad credentials.\\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Raised when establishing an environment fails due to bad credentials.\\\"\\\"\\\"\",\n \"class Environment(object):\\n \\\"\\\"\\\"Sets up the execution environment to use remote_api for RPCs.\\n\\n As with any use of remote_api, this has three important caveats:\\n\\n 1. By going through the Remote API rather than your application's handlers,\\n you are bypassing any business logic in those handlers. It is easy in\\n this way to accidentally corrupt the system receiving your RPCs.\",\n \" \\\"\\\"\\\"Sets up the execution environment to use remote_api for RPCs.\\n\\n As with any use of remote_api, this has three important caveats:\\n\\n 1. By going through the Remote API rather than your application's handlers,\\n you are bypassing any business logic in those handlers. It is easy in\\n this way to accidentally corrupt the system receiving your RPCs.\\n 2. There is no guarantee that the code running on the system receiving your\",\n \" def __init__(\\n self, application_id, server, path='/_ah/remote_api'):\\n \\\"\\\"\\\"Constructs a new Environment.\\n\\n Args:\\n application_id: string. The application id of the environment\\n (myapp).\\n server: string. The full name of the server to connect to\",\n \" \\\"\\\"\\\"Constructs a new Environment.\\n\\n Args:\\n application_id: string. The application id of the environment\\n (myapp).\\n server: string. The full name of the server to connect to\\n (myurl.appspot.com).\\n path: string. The URL of your app's remote api entry point.\",\n \" self._application_id = application_id\",\n \" self._path = path\",\n \" self._server = server\",\n \" def _dev_appserver_auth_func():\\n \\\"\\\"\\\"Auth function to run for dev_appserver (bogus password).\\\"\\\"\\\"\\n return raw_input('Email: '), _BOGUS_PASSWORD\",\n \" \\\"\\\"\\\"Auth function to run for dev_appserver (bogus password).\\\"\\\"\\\"\",\n \" return raw_input('Email: '), _BOGUS_PASSWORD\",\n \" def _test_auth_func():\\n \\\"\\\"\\\"Auth function to run in tests (bogus username and password).\\\"\\\"\\\"\\n return os.environ.get('USER_EMAIL', _TEST_EMAIL), _BOGUS_PASSWORD\",\n \" \\\"\\\"\\\"Auth function to run in tests (bogus username and password).\\\"\\\"\\\"\",\n \" return os.environ.get('USER_EMAIL', _TEST_EMAIL), _BOGUS_PASSWORD\",\n \" def _get_auth_func(self):\\n \\\"\\\"\\\"Returns authentication function for the remote API.\\\"\\\"\\\"\\n if os.environ.get('SERVER_SOFTWARE', '').startswith(\\n TEST_SERVER_SOFTWARE):\\n return self._test_auth_func\\n elif self._is_localhost():\\n return self._dev_appserver_auth_func\\n else:\",\n \" \\\"\\\"\\\"Returns authentication function for the remote API.\\\"\\\"\\\"\",\n \" if os.environ.get('SERVER_SOFTWARE', '').startswith(\\n TEST_SERVER_SOFTWARE):\\n return self._test_auth_func\\n elif self._is_localhost():\\n return self._dev_appserver_auth_func\\n else:\\n return remote_api_shell.auth_func\",\n \" return self._test_auth_func\",\n \" elif self._is_localhost():\\n return self._dev_appserver_auth_func\\n else:\\n return remote_api_shell.auth_func\",\n \" return self._dev_appserver_auth_func\",\n \" return remote_api_shell.auth_func\",\n \" def _get_internal_application_id(self):\\n \\\"\\\"\\\"Returns string containing App Engine's internal id representation.\\\"\\\"\\\"\\n prefix = _REMOTE_APPLICATION_ID_PREFIX\\n if self._is_localhost():\\n prefix = _LOCAL_APPLICATION_ID_PREFIX\\n elif not self._is_appspot():\\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)\\n return prefix + self._application_id\",\n \" \\\"\\\"\\\"Returns string containing App Engine's internal id representation.\\\"\\\"\\\"\",\n \" prefix = _REMOTE_APPLICATION_ID_PREFIX\",\n \" if self._is_localhost():\\n prefix = _LOCAL_APPLICATION_ID_PREFIX\\n elif not self._is_appspot():\\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)\",\n \" prefix = _LOCAL_APPLICATION_ID_PREFIX\",\n \" elif not self._is_appspot():\\n prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)\",\n \" prefix = '%s%s:' % (prefix, _GOOGLE_APPLICATION_INFIX)\",\n \" return prefix + self._application_id\",\n \" def _get_secure(self):\\n \\\"\\\"\\\"Returns boolean indicating whether or not to use https.\\\"\\\"\\\"\\n return not self._is_localhost()\",\n \" \\\"\\\"\\\"Returns boolean indicating whether or not to use https.\\\"\\\"\\\"\",\n \" return not self._is_localhost()\",\n \" def _is_appspot(self):\\n \\\"\\\"\\\"Returns True iff server is appspot.com.\\\"\\\"\\\"\\n return self._server.endswith(_APPSPOT_SERVER_SUFFIX)\",\n \" \\\"\\\"\\\"Returns True iff server is appspot.com.\\\"\\\"\\\"\",\n \" return self._server.endswith(_APPSPOT_SERVER_SUFFIX)\",\n \" def _is_localhost(self):\\n \\\"\\\"\\\"Returns True if environment is dev_appserver and False otherwise.\\\"\\\"\\\"\\n return self._server.startswith(_LOCAL_SERVER_PREFIX)\",\n \" \\\"\\\"\\\"Returns True if environment is dev_appserver and False otherwise.\\\"\\\"\\\"\",\n \" return self._server.startswith(_LOCAL_SERVER_PREFIX)\",\n \" def establish(self):\\n \\\"\\\"\\\"Establishes the environment for RPC execution.\\\"\\\"\\\"\\n try:\\n remote_api_stub.ConfigureRemoteApi(\\n self._get_internal_application_id(), self._path,\\n self._get_auth_func(), servername=self._server,\\n save_cookies=True, secure=self._get_secure(),\\n rpc_server_factory=appengine_rpc.HttpRpcServer)\",\n \" \\\"\\\"\\\"Establishes the environment for RPC execution.\\\"\\\"\\\"\",\n \" try:\\n remote_api_stub.ConfigureRemoteApi(\\n self._get_internal_application_id(), self._path,\\n self._get_auth_func(), servername=self._server,\\n save_cookies=True, secure=self._get_secure(),\\n rpc_server_factory=appengine_rpc.HttpRpcServer)\\n remote_api_stub.MaybeInvokeAuthentication()\\n except AttributeError:\",\n \" remote_api_stub.ConfigureRemoteApi(\\n self._get_internal_application_id(), self._path,\\n self._get_auth_func(), servername=self._server,\\n save_cookies=True, secure=self._get_secure(),\\n rpc_server_factory=appengine_rpc.HttpRpcServer)\",\n \" remote_api_stub.MaybeInvokeAuthentication()\"\n]","isConversational":false}}},{"rowIdx":4792,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Libraries for writing extract-transform-load scripts.\"\"\"\n\n__author__ = [\n 'johncox@google.com',\n]\n\nimport argparse\nimport datetime\nimport time\n\nfrom controllers import sites\nfrom models import courses\n\n\ndef get_context(course_url_prefix):\n \"\"\"Gets requested application context from the given course URL prefix.\n\n Args:\n course_url_prefix: string. Value of etl.py's course_url_prefix flag.\n\n Returns:\n sites.ApplicationContext.\n \"\"\"\n found = None\n for context in sites.get_all_courses():\n if context.raw.startswith('course:%s:' % course_url_prefix):\n found = context\n break\n return found\n\n\ndef get_course(app_context):\n \"\"\"Gets a courses.Course from the given sites.ApplicationContext.\n\n Does not ensure the course exists on the backend; validation should be done\n by the caller when getting the app_context object.\n\n Args:\n app_context: sites.ApplicationContext. The context we're getting the\n course for.\n\n Returns:\n courses.Course.\n \"\"\"\n\n class _Adapter(object):\n\n def __init__(self, app_context):\n self.app_context = app_context\n\n return courses.Course(_Adapter(app_context))\n\n\nclass Job(object):\n \"\"\"Abstract base class for user-defined custom ETL jobs.\n\n Custom jobs can be executed by etl.py. The advantage of this is that they\n can run arbitrary local computations, but calls to App Engine services\n (db.get() or db.put(), for example) are executed against a remove server.\n This allows you to perform arbitrary computations against your app's data,\n and to construct data pipelines that are not possible within the App Engine\n execution environment.\n\n When you run your custom job under etl.py in this way, it authenticates\n against the remove server, prompting the user for credentials if necessary.\n It then configures the local environment so RPCs execute against the\n requested remote endpoint.\n\n It then imports your custom job. Your job must be a Python class that is\n a child of this class. Before invoking etl.py, you must configure sys.path\n so all required libraries are importable. See etl.py for details. Your\n class must override main() with the computations you want your job to\n perform.\n\n You invoke your custom job via etl.py:\n\n $ python etl.py run path.to.my.Job /cs101 myapp server.appspot.com \\\n --job_args='more_args --delegated_to my.Job'\n\n Before main() is executed, arguments are parsed. The full set of parsed\n arguments passed to etl.py are available in your job as self.etl_args. The\n arguments passed as a quote-enclosed string to --job_args, if any, are\n delegated to your job. An argument parser is available as self.parser. You\n must override self._configure_parser to register command-line arguments for\n parsing. They will be parsed in advance of running main() and will be\n available as self.args.\n\n See tools/etl/examples.py for some nontrivial sample job implementations.\n \"\"\"\n\n def __init__(self, parsed_etl_args):\n \"\"\"Constructs a new job.\n\n Args:\n parsed_etl_args: argparse.Namespace. Parsed arguments passed to\n etl.py.\n \"\"\"\n self._parsed_args = None\n self._parsed_etl_args = parsed_etl_args\n self._parser = None\n\n def _configure_parser(self):\n \"\"\"Configures custom command line parser for this job, if any.\n\n For example:\n\n self.parser.add_argument(\n 'my_arg', help='A required argument', type=str)\n \"\"\"\n pass\n\n def main(self):\n \"\"\"Computations made by this job; must be overridden in subclass.\"\"\"\n pass\n\n @property\n def args(self):\n \"\"\"Returns etl.py's parsed --job_args, or None if run() not invoked.\"\"\"\n return self._parsed_args\n\n @property\n def etl_args(self):\n \"\"\"Returns parsed etl.py arguments.\"\"\"\n return self._parsed_etl_args\n\n @property\n def parser(self):\n \"\"\"Returns argparse.ArgumentParser, or None if run() not yet invoked.\"\"\"\n if not self._parser:\n self._parser = argparse.ArgumentParser(\n prog='%s.%s' % (\n self.__class__.__module__, self.__class__.__name__),\n usage=(\n 'etl.py run %(prog)s [etl.py options] [--job_args] '\n '[%(prog)s options]'))\n return self._parser\n\n def _parse_args(self):\n self._configure_parser()\n self._parsed_args = self.parser.parse_args(\n self._parsed_etl_args.job_args)\n\n def run(self):\n \"\"\"Executes the job; called for you by etl.py.\"\"\"\n self._parse_args()\n self.main()\n\n\nclass _ProgressReporter(object):\n \"\"\"Provide intermittent reports on progress of a long-running operation.\"\"\"\n\n def __init__(self, logger, verb, noun, chunk_size, total, num_history=10):\n self._logger = logger\n self._verb = verb\n self._noun = noun\n self._chunk_size = chunk_size\n self._total = total\n self._num_history = num_history\n self._rate_history = []\n self._start_time = self._chunk_start_time = time.time()\n self._total_count = 0\n self._chunk_count = 0\n\n def count(self, quantity=1):\n self._total_count += quantity\n self._chunk_count += quantity\n while self._chunk_count >= self._chunk_size:\n now = time.time()\n self._chunk_count -= self._chunk_size\n self._rate_history.append(now - self._chunk_start_time)\n self._chunk_start_time = now\n while len(self._rate_history) > self._num_history:\n del self._rate_history[0]\n self.report()\n\n def get_count(self):\n return self._total_count\n\n def report(self):\n now = time.time()\n total_time = datetime.timedelta(\n days=0, seconds=int(now - self._start_time))\n\n if not sum(self._rate_history):\n rate = 0\n time_left = 0\n expected_total = 0\n else:\n rate = ((len(self._rate_history) * self._chunk_size) /\n sum(self._rate_history))\n time_left = datetime.timedelta(\n days=0,\n seconds=int((self._total - self._total_count) / rate))\n expected_total = datetime.timedelta(\n days=0, seconds=int(self._total / rate))\n self._logger.info(\n '%(verb)s %(total_count)9d of %(total)d %(noun)s '\n 'in %(total_time)s. Recent rate is %(rate)d/sec; '\n '%(time_left)s seconds to go '\n '(%(expected_total)s total) at this rate.' %\n {\n 'verb': self._verb,\n 'total_count': self._total_count,\n 'total': self._total,\n 'noun': self._noun,\n 'total_time': total_time,\n 'rate': rate,\n 'time_left': time_left,\n 'expected_total': expected_total\n })\n"},"vector":{"kind":"list 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14,\n 3,\n 0.9308,\n 0.0089,\n 3,\n 0.44,\n 1,\n 661,\n 3,\n 2,\n 0,\n 0,\n 790,\n 10,\n 2\n ],\n [\n 8,\n 2,\n 0.9688,\n 0.067,\n 2,\n 0.52,\n 1,\n 730,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Libraries for writing extract-transform-load scripts.\"\"\"","__author__ = [\n 'johncox@google.com',\n]","import argparse","import datetime","import time","from controllers import sites","from models import courses","def get_context(course_url_prefix):\n \"\"\"Gets requested application context from the given course URL prefix.\n\n Args:\n course_url_prefix: string. Value of etl.py's course_url_prefix flag.\n\n Returns:\n sites.ApplicationContext."," \"\"\"Gets requested application context from the given course URL prefix.\n\n Args:\n course_url_prefix: string. Value of etl.py's course_url_prefix flag.\n\n Returns:\n sites.ApplicationContext.\n \"\"\""," found = None"," for context in sites.get_all_courses():\n if context.raw.startswith('course:%s:' % course_url_prefix):\n found = context\n break"," if context.raw.startswith('course:%s:' % course_url_prefix):\n found = context\n break"," found = context"," return found","def get_course(app_context):\n \"\"\"Gets a courses.Course from the given sites.ApplicationContext.\n\n Does not ensure the course exists on the backend; validation should be done\n by the caller when getting the app_context object.\n\n Args:\n app_context: sites.ApplicationContext. The context we're getting the"," \"\"\"Gets a courses.Course from the given sites.ApplicationContext.\n\n Does not ensure the course exists on the backend; validation should be done\n by the caller when getting the app_context object.\n\n Args:\n app_context: sites.ApplicationContext. The context we're getting the\n course for."," class _Adapter(object):\n\n def __init__(self, app_context):\n self.app_context = app_context"," def __init__(self, app_context):\n self.app_context = app_context"," self.app_context = app_context"," return courses.Course(_Adapter(app_context))","class Job(object):\n \"\"\"Abstract base class for user-defined custom ETL jobs.\n\n Custom jobs can be executed by etl.py. The advantage of this is that they\n can run arbitrary local computations, but calls to App Engine services\n (db.get() or db.put(), for example) are executed against a remove server.\n This allows you to perform arbitrary computations against your app's data,\n and to construct data pipelines that are not possible within the App Engine"," \"\"\"Abstract base class for user-defined custom ETL jobs.\n\n Custom jobs can be executed by etl.py. The advantage of this is that they\n can run arbitrary local computations, but calls to App Engine services\n (db.get() or db.put(), for example) are executed against a remove server.\n This allows you to perform arbitrary computations against your app's data,\n and to construct data pipelines that are not possible within the App Engine\n execution environment."," def __init__(self, parsed_etl_args):\n \"\"\"Constructs a new job.\n\n Args:\n parsed_etl_args: argparse.Namespace. Parsed arguments passed to\n etl.py.\n \"\"\"\n self._parsed_args = None"," \"\"\"Constructs a new job.\n\n Args:\n parsed_etl_args: argparse.Namespace. Parsed arguments passed to\n etl.py.\n \"\"\""," self._parsed_args = None"," self._parsed_etl_args = parsed_etl_args"," self._parser = None"," def _configure_parser(self):\n \"\"\"Configures custom command line parser for this job, if any.\n\n For example:\n\n self.parser.add_argument(\n 'my_arg', help='A required argument', type=str)\n \"\"\""," \"\"\"Configures custom command line parser for this job, if any.\n\n For example:\n\n self.parser.add_argument(\n 'my_arg', help='A required argument', type=str)\n \"\"\""," def main(self):\n \"\"\"Computations made by this job; must be overridden in subclass.\"\"\"\n pass"," \"\"\"Computations made by this job; must be overridden in subclass.\"\"\""," def args(self):\n \"\"\"Returns etl.py's parsed --job_args, or None if run() not invoked.\"\"\"\n return self._parsed_args"," \"\"\"Returns etl.py's parsed --job_args, or None if run() not invoked.\"\"\""," return self._parsed_args"," def etl_args(self):\n \"\"\"Returns parsed etl.py arguments.\"\"\"\n return self._parsed_etl_args"," \"\"\"Returns parsed etl.py arguments.\"\"\""," return self._parsed_etl_args"," def parser(self):\n \"\"\"Returns argparse.ArgumentParser, or None if run() not yet invoked.\"\"\"\n if not self._parser:\n self._parser = argparse.ArgumentParser(\n prog='%s.%s' % (\n self.__class__.__module__, self.__class__.__name__),\n usage=(\n 'etl.py run %(prog)s [etl.py options] [--job_args] '"," \"\"\"Returns argparse.ArgumentParser, or None if run() not yet invoked.\"\"\""," if not self._parser:\n self._parser = argparse.ArgumentParser(\n prog='%s.%s' % (\n self.__class__.__module__, self.__class__.__name__),\n usage=(\n 'etl.py run %(prog)s [etl.py options] [--job_args] '\n '[%(prog)s options]'))"," self._parser = argparse.ArgumentParser(\n prog='%s.%s' % (\n self.__class__.__module__, self.__class__.__name__),\n usage=(\n 'etl.py run %(prog)s [etl.py options] [--job_args] '\n '[%(prog)s options]'))"," return self._parser"," def _parse_args(self):\n self._configure_parser()\n self._parsed_args = self.parser.parse_args(\n self._parsed_etl_args.job_args)"," self._configure_parser()"," self._parsed_args = self.parser.parse_args(\n self._parsed_etl_args.job_args)"," def run(self):\n \"\"\"Executes the job; called for you by etl.py.\"\"\"\n self._parse_args()\n self.main()"," \"\"\"Executes the job; called for you by etl.py.\"\"\""," self._parse_args()"," self.main()","class _ProgressReporter(object):\n \"\"\"Provide intermittent reports on progress of a long-running operation.\"\"\"\n\n def __init__(self, logger, verb, noun, chunk_size, total, num_history=10):\n self._logger = logger\n self._verb = verb\n self._noun = noun\n self._chunk_size = chunk_size"," \"\"\"Provide intermittent reports on progress of a long-running operation.\"\"\""," def __init__(self, logger, verb, noun, chunk_size, total, num_history=10):\n self._logger = logger\n self._verb = verb\n self._noun = noun\n self._chunk_size = chunk_size\n self._total = total\n self._num_history = num_history\n self._rate_history = []"," self._logger = logger"," self._verb = verb"," self._noun = noun"," self._chunk_size = chunk_size"," self._total = total"," self._num_history = num_history"," self._rate_history = []"," self._start_time = self._chunk_start_time = time.time()"," self._total_count = 0"," self._chunk_count = 0"," def count(self, quantity=1):\n self._total_count += quantity\n self._chunk_count += quantity\n while self._chunk_count >= self._chunk_size:\n now = time.time()\n self._chunk_count -= self._chunk_size\n self._rate_history.append(now - self._chunk_start_time)\n self._chunk_start_time = now"," while self._chunk_count >= self._chunk_size:\n now = time.time()\n self._chunk_count -= self._chunk_size\n self._rate_history.append(now - self._chunk_start_time)\n self._chunk_start_time = now\n while len(self._rate_history) > self._num_history:\n del self._rate_history[0]\n self.report()"," now = time.time()"," self._rate_history.append(now - self._chunk_start_time)"," self._chunk_start_time = now"," while len(self._rate_history) > self._num_history:\n del self._rate_history[0]"," self.report()"," def get_count(self):\n return self._total_count"," return self._total_count"," def report(self):\n now = time.time()\n total_time = datetime.timedelta(\n days=0, seconds=int(now - self._start_time))\n\n if not sum(self._rate_history):\n rate = 0\n time_left = 0"," now = time.time()"," total_time = datetime.timedelta(\n days=0, seconds=int(now - self._start_time))"," if not sum(self._rate_history):\n rate = 0\n time_left = 0\n expected_total = 0\n else:\n rate = ((len(self._rate_history) * self._chunk_size) /\n sum(self._rate_history))\n time_left = datetime.timedelta("," rate = 0"," time_left = 0"," expected_total = 0"," rate = ((len(self._rate_history) * self._chunk_size) /\n sum(self._rate_history))"," time_left = datetime.timedelta(\n days=0,\n seconds=int((self._total - self._total_count) / rate))"," expected_total = datetime.timedelta(\n days=0, seconds=int(self._total / rate))"," self._logger.info(\n '%(verb)s %(total_count)9d of %(total)d %(noun)s '\n 'in %(total_time)s. Recent rate is %(rate)d/sec; '\n '%(time_left)s seconds to go '\n '(%(expected_total)s total) at this rate.' %\n {\n 'verb': self._verb,\n 'total_count': self._total_count,"],"string":"[\n \"\\\"\\\"\\\"Libraries for writing extract-transform-load scripts.\\\"\\\"\\\"\",\n \"__author__ = [\\n 'johncox@google.com',\\n]\",\n \"import argparse\",\n \"import datetime\",\n \"import time\",\n \"from controllers import sites\",\n \"from models import courses\",\n \"def get_context(course_url_prefix):\\n \\\"\\\"\\\"Gets requested application context from the given course URL prefix.\\n\\n Args:\\n course_url_prefix: string. Value of etl.py's course_url_prefix flag.\\n\\n Returns:\\n sites.ApplicationContext.\",\n \" \\\"\\\"\\\"Gets requested application context from the given course URL prefix.\\n\\n Args:\\n course_url_prefix: string. Value of etl.py's course_url_prefix flag.\\n\\n Returns:\\n sites.ApplicationContext.\\n \\\"\\\"\\\"\",\n \" found = None\",\n \" for context in sites.get_all_courses():\\n if context.raw.startswith('course:%s:' % course_url_prefix):\\n found = context\\n break\",\n \" if context.raw.startswith('course:%s:' % course_url_prefix):\\n found = context\\n break\",\n \" found = context\",\n \" return found\",\n \"def get_course(app_context):\\n \\\"\\\"\\\"Gets a courses.Course from the given sites.ApplicationContext.\\n\\n Does not ensure the course exists on the backend; validation should be done\\n by the caller when getting the app_context object.\\n\\n Args:\\n app_context: sites.ApplicationContext. The context we're getting the\",\n \" \\\"\\\"\\\"Gets a courses.Course from the given sites.ApplicationContext.\\n\\n Does not ensure the course exists on the backend; validation should be done\\n by the caller when getting the app_context object.\\n\\n Args:\\n app_context: sites.ApplicationContext. The context we're getting the\\n course for.\",\n \" class _Adapter(object):\\n\\n def __init__(self, app_context):\\n self.app_context = app_context\",\n \" def __init__(self, app_context):\\n self.app_context = app_context\",\n \" self.app_context = app_context\",\n \" return courses.Course(_Adapter(app_context))\",\n \"class Job(object):\\n \\\"\\\"\\\"Abstract base class for user-defined custom ETL jobs.\\n\\n Custom jobs can be executed by etl.py. The advantage of this is that they\\n can run arbitrary local computations, but calls to App Engine services\\n (db.get() or db.put(), for example) are executed against a remove server.\\n This allows you to perform arbitrary computations against your app's data,\\n and to construct data pipelines that are not possible within the App Engine\",\n \" \\\"\\\"\\\"Abstract base class for user-defined custom ETL jobs.\\n\\n Custom jobs can be executed by etl.py. The advantage of this is that they\\n can run arbitrary local computations, but calls to App Engine services\\n (db.get() or db.put(), for example) are executed against a remove server.\\n This allows you to perform arbitrary computations against your app's data,\\n and to construct data pipelines that are not possible within the App Engine\\n execution environment.\",\n \" def __init__(self, parsed_etl_args):\\n \\\"\\\"\\\"Constructs a new job.\\n\\n Args:\\n parsed_etl_args: argparse.Namespace. Parsed arguments passed to\\n etl.py.\\n \\\"\\\"\\\"\\n self._parsed_args = None\",\n \" \\\"\\\"\\\"Constructs a new job.\\n\\n Args:\\n parsed_etl_args: argparse.Namespace. Parsed arguments passed to\\n etl.py.\\n \\\"\\\"\\\"\",\n \" self._parsed_args = None\",\n \" self._parsed_etl_args = parsed_etl_args\",\n \" self._parser = None\",\n \" def _configure_parser(self):\\n \\\"\\\"\\\"Configures custom command line parser for this job, if any.\\n\\n For example:\\n\\n self.parser.add_argument(\\n 'my_arg', help='A required argument', type=str)\\n \\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Configures custom command line parser for this job, if any.\\n\\n For example:\\n\\n self.parser.add_argument(\\n 'my_arg', help='A required argument', type=str)\\n \\\"\\\"\\\"\",\n \" def main(self):\\n \\\"\\\"\\\"Computations made by this job; must be overridden in subclass.\\\"\\\"\\\"\\n pass\",\n \" \\\"\\\"\\\"Computations made by this job; must be overridden in subclass.\\\"\\\"\\\"\",\n \" def args(self):\\n \\\"\\\"\\\"Returns etl.py's parsed --job_args, or None if run() not invoked.\\\"\\\"\\\"\\n return self._parsed_args\",\n \" \\\"\\\"\\\"Returns etl.py's parsed --job_args, or None if run() not invoked.\\\"\\\"\\\"\",\n \" return self._parsed_args\",\n \" def etl_args(self):\\n \\\"\\\"\\\"Returns parsed etl.py arguments.\\\"\\\"\\\"\\n return self._parsed_etl_args\",\n \" \\\"\\\"\\\"Returns parsed etl.py arguments.\\\"\\\"\\\"\",\n \" return self._parsed_etl_args\",\n \" def parser(self):\\n \\\"\\\"\\\"Returns argparse.ArgumentParser, or None if run() not yet invoked.\\\"\\\"\\\"\\n if not self._parser:\\n self._parser = argparse.ArgumentParser(\\n prog='%s.%s' % (\\n self.__class__.__module__, self.__class__.__name__),\\n usage=(\\n 'etl.py run %(prog)s [etl.py options] [--job_args] '\",\n \" \\\"\\\"\\\"Returns argparse.ArgumentParser, or None if run() not yet invoked.\\\"\\\"\\\"\",\n \" if not self._parser:\\n self._parser = argparse.ArgumentParser(\\n prog='%s.%s' % (\\n self.__class__.__module__, self.__class__.__name__),\\n usage=(\\n 'etl.py run %(prog)s [etl.py options] [--job_args] '\\n '[%(prog)s options]'))\",\n \" self._parser = argparse.ArgumentParser(\\n prog='%s.%s' % (\\n self.__class__.__module__, self.__class__.__name__),\\n usage=(\\n 'etl.py run %(prog)s [etl.py options] [--job_args] '\\n '[%(prog)s options]'))\",\n \" return self._parser\",\n \" def _parse_args(self):\\n self._configure_parser()\\n self._parsed_args = self.parser.parse_args(\\n self._parsed_etl_args.job_args)\",\n \" self._configure_parser()\",\n \" self._parsed_args = self.parser.parse_args(\\n self._parsed_etl_args.job_args)\",\n \" def run(self):\\n \\\"\\\"\\\"Executes the job; called for you by etl.py.\\\"\\\"\\\"\\n self._parse_args()\\n self.main()\",\n \" \\\"\\\"\\\"Executes the job; called for you by etl.py.\\\"\\\"\\\"\",\n \" self._parse_args()\",\n \" self.main()\",\n \"class _ProgressReporter(object):\\n \\\"\\\"\\\"Provide intermittent reports on progress of a long-running operation.\\\"\\\"\\\"\\n\\n def __init__(self, logger, verb, noun, chunk_size, total, num_history=10):\\n self._logger = logger\\n self._verb = verb\\n self._noun = noun\\n self._chunk_size = chunk_size\",\n \" \\\"\\\"\\\"Provide intermittent reports on progress of a long-running operation.\\\"\\\"\\\"\",\n \" def __init__(self, logger, verb, noun, chunk_size, total, num_history=10):\\n self._logger = logger\\n self._verb = verb\\n self._noun = noun\\n self._chunk_size = chunk_size\\n self._total = total\\n self._num_history = num_history\\n self._rate_history = []\",\n \" self._logger = logger\",\n \" self._verb = verb\",\n \" self._noun = noun\",\n \" self._chunk_size = chunk_size\",\n \" self._total = total\",\n \" self._num_history = num_history\",\n \" self._rate_history = []\",\n \" self._start_time = self._chunk_start_time = time.time()\",\n \" self._total_count = 0\",\n \" self._chunk_count = 0\",\n \" def count(self, quantity=1):\\n self._total_count += quantity\\n self._chunk_count += quantity\\n while self._chunk_count >= self._chunk_size:\\n now = time.time()\\n self._chunk_count -= self._chunk_size\\n self._rate_history.append(now - self._chunk_start_time)\\n self._chunk_start_time = now\",\n \" while self._chunk_count >= self._chunk_size:\\n now = time.time()\\n self._chunk_count -= self._chunk_size\\n self._rate_history.append(now - self._chunk_start_time)\\n self._chunk_start_time = now\\n while len(self._rate_history) > self._num_history:\\n del self._rate_history[0]\\n self.report()\",\n \" now = time.time()\",\n \" self._rate_history.append(now - self._chunk_start_time)\",\n \" self._chunk_start_time = now\",\n \" while len(self._rate_history) > self._num_history:\\n del self._rate_history[0]\",\n \" self.report()\",\n \" def get_count(self):\\n return self._total_count\",\n \" return self._total_count\",\n \" def report(self):\\n now = time.time()\\n total_time = datetime.timedelta(\\n days=0, seconds=int(now - self._start_time))\\n\\n if not sum(self._rate_history):\\n rate = 0\\n time_left = 0\",\n \" now = time.time()\",\n \" total_time = datetime.timedelta(\\n days=0, seconds=int(now - self._start_time))\",\n \" if not sum(self._rate_history):\\n rate = 0\\n time_left = 0\\n expected_total = 0\\n else:\\n rate = ((len(self._rate_history) * self._chunk_size) /\\n sum(self._rate_history))\\n time_left = datetime.timedelta(\",\n \" rate = 0\",\n \" time_left = 0\",\n \" expected_total = 0\",\n \" rate = ((len(self._rate_history) * self._chunk_size) /\\n sum(self._rate_history))\",\n \" time_left = datetime.timedelta(\\n days=0,\\n seconds=int((self._total - self._total_count) / rate))\",\n \" expected_total = datetime.timedelta(\\n days=0, seconds=int(self._total / rate))\",\n \" self._logger.info(\\n '%(verb)s %(total_count)9d of %(total)d %(noun)s '\\n 'in %(total_time)s. Recent rate is %(rate)d/sec; '\\n '%(time_left)s seconds to go '\\n '(%(expected_total)s total) at this rate.' %\\n {\\n 'verb': self._verb,\\n 'total_count': self._total_count,\"\n]","isConversational":false}}},{"rowIdx":4793,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Example of custom MapReduce jobs.\"\"\"\n\n__author__ = [\n 'juliaoh@google.com (Julia Oh)',\n]\n\nimport sys\n\nimport mapreduce\n\nfrom models import transforms\n\n# Int. Longest GeoMOOC video is ~8 minutes.\n_POS_LIMIT_SECONDS = 60 * 8\n# Str. Constant str key to accumulate all values under one key in reduce.\n_SUM = 'sum'\n\n\nclass CsvStudentEventAccumulationPipeline(mapreduce.CsvGenerator):\n \"\"\"Example MapReduce pipeline class for histogram of event instance counts.\n\n This MR pipeline:\n 1. Takes in EventEntity as input source.\n 2. Counts the total number of event instances per user.\n 3. Aggregates event counts across all users.\n 4. Creates a histogram from aggregated event counts.\n 5. Flattens the histogram.\n 6. Format the histogram into CSV.\n \"\"\"\n # List of sources of Youtube video data in EventEntity.\n _VIDEO_SOURCES = [\n 'tag-youtube-milestone',\n 'tag-youtube-event'\n ]\n\n def run(self, job):\n \"\"\"Runs the mapreduce pipeline job.\"\"\"\n # Validate input source and output directory. mrs. MapReduce framework\n # expects the value 1 if the job fails. If the input source is empty or\n # the output directory cannot be found, the job is a failure and must\n # return 1.\n source = self.input_data(job)\n if not source:\n return 1\n outdir = self.output_dir()\n if not outdir:\n return 1\n\n # Set the configuration for pipeline.\n\n # First MapReduce phase: filter out event data and aggregate by user\n # key.\n user_to_event_instance_count = job.map_data(\n source, self.map_userid_to_1)\n source.close()\n total_event_counts_per_user = job.reduce_data(\n user_to_event_instance_count, self.sum_event_instances_per_user)\n user_to_event_instance_count.close()\n\n # Second MapReduce phase: Create a histogram with aggregated data.\n aggregated_event_counts = job.map_data(\n total_event_counts_per_user,\n self.map_all_event_counts_to_single_key\n )\n total_event_counts_per_user.close()\n histogram = job.reduce_data(\n aggregated_event_counts,\n self.create_histogram_from_aggregated_event_counts\n )\n aggregated_event_counts.close()\n\n # Third MapReduce phase: Flatten the data and format it to CSV. This\n # phase calls the map() and reduce() functions defined in CsvGenerator\n # class.\n flattened_histogram = job.map_data(histogram, self.map)\n histogram.close()\n histogram_csv = job.reduce_data(\n flattened_histogram, self.reduce, format=mapreduce.CsvWriter,\n outdir=outdir)\n flattened_histogram.close()\n histogram_csv.close()\n\n # Run the job with above configurations. job.wait() does not return any\n # value until the entire job is done. Partial progress of each phases\n # will be printed while the job is running.\n ready = []\n while not ready:\n ready = job.wait(histogram_csv, timeout=2.0)\n first_map_percent = 100 * job.progress(user_to_event_instance_count)\n first_reduce_percent = 100 * job.progress(\n total_event_counts_per_user)\n second_map_percent = 100 * job.progress(aggregated_event_counts)\n second_reduce_percent = 100 * job.progress(histogram)\n third_map_percent = 100 * job.progress(flattened_histogram)\n third_reduce_percent = 100 * job.progress(histogram_csv)\n string_map = {\n 'map1_name': self.map_userid_to_1.__name__,\n 'map1_progress': first_map_percent,\n 'reduce1_name': self.sum_event_instances_per_user.__name__,\n 'reduce1_progress': first_reduce_percent,\n 'map2_name': self.map_all_event_counts_to_single_key.__name__,\n 'map2_progress': second_map_percent,\n 'reduce2_name': (\n self.create_histogram_from_aggregated_event_counts.__name__\n ),\n 'reduce2_progress': second_reduce_percent,\n 'map3_name': self.map.__name__,\n 'map3_progress': third_map_percent,\n 'reduce3_name': self.reduce.__name__,\n 'reduce3_progress': third_reduce_percent\n }\n print (\n '%(map1_name)s: %(map1_progress).1f complete. \\n'\n '%(reduce1_name)s: %(reduce1_progress).1f complete. \\n'\n '%(map2_name)s: %(map2_progress).1f complete. \\n'\n '%(reduce2_name)s: %(reduce2_progress).1f complete. \\n'\n 'csv_%(map3_name)s: %(map3_progress).1f complete. \\n'\n 'csv_%(reduce3_name)s: %(reduce3_progress).1f complete. \\n' %\n string_map\n )\n sys.stdout.flush()\n return 0\n\n def map_userid_to_1(self, unused_key, value):\n \"\"\"Maps user_id to value of 1.\n\n Args:\n unused_key: int. Line number of EventEntity JSON object in file.\n value: str. Instance of EventEntity extracted from file.\n\n Yields:\n A tuple of (user_id, 1).\n Value of 1 represents one instance of event for the user.\n \"\"\"\n json = self.json_parse(value)\n if json and json['user_id']:\n if json['source'] in self._VIDEO_SOURCES:\n video_data = transforms.loads(json['data'])\n if video_data['position'] > _POS_LIMIT_SECONDS:\n # Filter bad data from YouTube API.\n return\n yield json['user_id'], 1\n\n def sum_event_instances_per_user(self, unused_key, values):\n \"\"\"Sums up number of entity instances per student.\n\n Args:\n unused_key: str. Represents user_id.\n values: An iterator over entity instance counts per student.\n\n Yields:\n A dict with key value pair as:\n key: constant string literal 'sum'\n value: int. Total number of entity instances.\n \"\"\"\n yield {_SUM: sum(values)}\n\n def map_all_event_counts_to_single_key(self, unused_key, value):\n yield _SUM, value[_SUM]\n\n def create_histogram_from_aggregated_event_counts(self, unused_key, values):\n \"\"\"Creates a histogram from event entity instance counts.\n\n Args:\n unused_key: str. Constant string 'key' emitted by mapper2.\n values: An iterator over list of integer event instance counts.\n\n Yields:\n A serialized JSON representation of python dictionary. The keys of\n the python dict are indices of the histogram interval, and the\n corresponding values are number of events that are in that interval.\n\n An example output looks like: {0: 10, 1: 15, 2: 100}\n \"\"\"\n # Histogram bucket size is 50 events.\n histogram = mapreduce.Histogram(50)\n for value in values:\n histogram.add(value)\n yield transforms.dumps(\n {index: value for index, value in enumerate(\n histogram.to_noise_filtered_list())})\n\n\nclass CsvStudentEventsHistogram(mapreduce.MapReduceJob):\n \"\"\"MapReduce Job that generates a histogram for event counts per student.\n\n Usage:\n python etl.py run tools.etl.mapreduce_examples.StudentEventsHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\"\n\n MAPREDUCE_CLASS = CsvStudentEventAccumulationPipeline\n\n\nclass StudentDurationAccumulationPipeline(mapreduce.MapReduceBase):\n \"\"\"Sums up amount of time spent on course per student.\n\n This pipeline:\n 1. Takes an EventEntity file as input.\n 2. Sum up all valid page-visit duration values per user.\n 3. Aggregate summed up duration values across all users.\n 4. Create a histogram with these values.\n \"\"\"\n\n # Str. Source of event in EventEntity generated during a page visit.\n _VISIT_PAGE = 'visit-page'\n # Int. A hard limit for duration value on visit-page events to filter\n # misleading data. If a user keeps the browser open and goes idle, duration\n # values can get very large.\n _DURATION_MINUTES_LIMIT = 30\n\n def run(self, job):\n \"\"\"Runs the mapreduce pipeline job.\"\"\"\n # Validate input source and output directory.\n source = self.input_data(job)\n if not source:\n return 1\n outdir = self.output_dir()\n if not outdir:\n return 1\n\n # Set the configuration for pipeline.\n\n # First MapReduce phase: filter out page-visit duration values and\n # accumulate under user key.\n user_to_duration = job.map_data(source, self.map_user_to_duration)\n source.close()\n user_to_total_duration = job.reduce_data(\n user_to_duration, self.sum_total_duration_per_user)\n user_to_duration.close()\n\n # Second MapReduce phase: Create a histogram with aggregated duration\n # values from all users.\n aggregated_duration_values = job.map_data(\n user_to_total_duration,\n self.map_all_user_duration_total_to_single_key\n )\n user_to_total_duration.close()\n histogram = job.reduce_data(\n aggregated_duration_values,\n self.create_histogram_from_duration_distribution,\n outdir=outdir,\n format=mapreduce.JsonWriter\n )\n aggregated_duration_values.close()\n histogram.close()\n\n # Run the job with above configurations.\n ready = []\n while not ready:\n ready = job.wait(histogram, timeout=2.0)\n first_map_percent = 100 * job.progress(user_to_duration)\n first_reduce_percent = 100 * job.progress(user_to_total_duration)\n second_map_percent = 100 * job.progress(aggregated_duration_values)\n second_reduce_percent = 100 * job.progress(histogram)\n string_map = {\n 'map1_name': self.map_user_to_duration.__name__,\n 'map1_progress': first_map_percent,\n 'reduce1_name': self.sum_total_duration_per_user.__name__,\n 'reduce1_progress': first_reduce_percent,\n 'map2_name': (\n self.map_all_user_duration_total_to_single_key.__name__\n ),\n 'map2_progress': second_map_percent,\n 'reduce2_name': (\n self.create_histogram_from_duration_distribution.__name__\n ),\n 'reduce2_progress': second_reduce_percent\n }\n print (\n '%(map1_name)s: %(map1_progress).1f complete. \\n'\n '%(reduce1_name)s: %(reduce1_progress).1f complete. \\n'\n '%(map2_name)s: %(map2_progress).1f complete. \\n'\n '%(reduce2_name)s: %(reduce2_progress).1f complete. \\n' %\n string_map\n )\n sys.stdout.flush()\n return 0\n\n def map_user_to_duration(self, unused_key, value):\n \"\"\"Maps user_id to duration value in 'visit-page' events.\n\n Args:\n unused_key: int. Line number of EventEntity JSON object in file.\n value: str. Instance of EventEntity extracted from file.\n\n Yields:\n A tuple of (user_id, valid duration value in minutes).\n Valid duration value is defined as positive integer duration values\n that are less than _DURATION_MINUTES_LIMIT. Duration values are\n validated to filter noisy data.\n \"\"\"\n json = self.json_parse(value)\n if json and json['user_id'] and json['source'] == self._VISIT_PAGE:\n event_data = transforms.loads(json['data'])\n # Convert duration in milliseconds to minutes.\n duration_minutes = event_data['duration'] // (1000 * 60)\n if (duration_minutes <= self._DURATION_MINUTES_LIMIT and\n duration_minutes > 0):\n yield json.pop('user_id'), duration_minutes\n\n def sum_total_duration_per_user(self, unused_key, values):\n \"\"\"Sums up number of entity instances per student.\n\n Args:\n unused_key: str. Represents user_id.\n values: An iterator over entity instance counts per student.\n\n Yields:\n A dict with key value pair as:\n key: constant string literal 'sum'\n value: int. Total number of entity instances.\n \"\"\"\n yield {_SUM: sum(values)}\n\n def map_all_user_duration_total_to_single_key(self, unused_key, value):\n yield _SUM, value[_SUM]\n\n def create_histogram_from_duration_distribution(self, unused_key, values):\n \"\"\"Creates a histogram from summed up duration values.\n\n Args:\n unused_key: str. Constant string 'sum' emitted by\n map_all_user_duration_total_to_single_key().\n values: An iterator over list of summed up duration values.\n\n Yields:\n A serialized JSON representation of python dictionary. The keys of\n the python dict are indices of the histogram interval, and the\n corresponding values are number of summed up duration values that\n are in that interval index.\n\n An example output looks like:\n duration_values = [50, 65, 100, 130]\n histogram bucket_size = 60\n\n output: \"{0: 1, 1: 2, 2: 1}\"\n \"\"\"\n # Histogram bucket size is one hour.\n histogram = mapreduce.Histogram(60)\n for value in values:\n histogram.add(value)\n yield {index: value for index, value in enumerate(\n histogram.to_noise_filtered_list())}\n\n\nclass StudentPageDurationHistogram(mapreduce.MapReduceJob):\n \"\"\"MapReduce Job that generates a histogram for time spent on course pages.\n\n Usage:\n python etl.py run \\\n tools.etl.mapreduce_examples.StudentPageDurationHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\"\n\n MAPREDUCE_CLASS = StudentDurationAccumulationPipeline\n\n\nclass WordCount(mapreduce.MapReduceBase):\n \"\"\"Counts word frequency in input.\n\n Output is plain text of the format:\n\n word1: count1\n word2: count2\n ...\n wordn: countn\n \"\"\"\n\n # Since JSON is our usual interchange format, mapreduce.JsonWriter is our\n # default output writer. For this canonical example, however, we'll override\n # this and emit plain text instead.\n WRITER_CLASS = mapreduce.TextWriter\n\n def map(self, unused_key, value):\n # value is one line of the input file. We break it into tokens and\n # convert each token to lowercase in order to treat 'To' and 'to' as\n # equivalent.\n tokens = [x.lower() for x in value.split()]\n for token in tokens:\n # Both map and reduce yield rather than return. map yields a\n # (key, value) 2-tuple. In this case, key is the token and value is\n # always 1, indicating that we've seen the token once per\n # occurrence.\n yield token, 1\n\n def reduce(self, key, values):\n # key will be a token and values will be a list of 1s -- one for each\n # time map saw the token. Like map, reduce yields rather than returning.\n # In this case we yield a plain string containing the token and the sum\n # of its 1s for the WRITER_CLASS to output.\n yield '%s: %s' % (key, sum(values))\n\n\nclass WordCountJob(mapreduce.MapReduceJob):\n \"\"\"MapReduce Job that illustrates simple word count of input.\n\n Usage:\n python etl.py run \\\n tools.etl.mapreduce_examples.WordCount \\\n /coursename appid server.appspot.com \\\n --job_args='path/to/input.file path/to/output/directory'\n \"\"\"\n\n MAPREDUCE_CLASS = WordCount\n\n\nclass YoutubeHistogramGenerator(mapreduce.MapReduceBase):\n \"\"\"Generates time histogram of user video engagement.\n\n Input file: EventEntity JSON file.\n Each event has a 'source' that defines a place in a code where the event\n was recorded. Each event has a 'user_id' to represent an actor who\n triggered the event. The event 'data' is a JSON object and its format and\n content depends on the type of the event. For YouTube video events, 'data'\n is a dictionary with 'video_id', 'instance_id', 'event_id', 'position',\n 'data', 'location'.\n \"\"\"\n\n # String. Event source value for YouTube videos in EventEntity.json.\n _YOUTUBE_MILESTONE_SOURCE = 'tag-youtube-milestone'\n\n def map(self, unused_key, value):\n \"\"\"Filters out YouTube video data from EventEntity JSON file.\n\n Args:\n unused_key: int. line number of each EventEntity in file.\n value: str. instance of EventEntity extracted from file.\n\n Yields:\n A tuple of (video_identifier, time_position) to be passed into\n reduce function.\n Video_identifier is a tuple of YouTube video_id and instance_id,\n and time_position is the video playhead count.\n \"\"\"\n json = self.json_parse(value)\n if json and json['source'] == self._YOUTUBE_MILESTONE_SOURCE:\n data = transforms.loads(json['data'])\n video_identifier = (data['video_id'], data['instance_id'])\n playhead_position = data['position']\n if (playhead_position <= _POS_LIMIT_SECONDS and\n # Youtube API may return NaN if value couldn't be computed.\n playhead_position != float('nan')):\n yield video_identifier, playhead_position\n\n def reduce(self, key, values):\n \"\"\"Creates a histogram from time_position values.\n\n The value of _BUCKET_SIZE comes from the constant\n GCB_VIDEO_TRACKING_CHUNK_SEC in youtube_video.js. This value indicates\n the interval of the milestone events. If GCB_VIDEO_TRACKING_CHUNK_SEC\n changes, _BUCKET_SIZE will have to be updated accordingly.\n\n Args:\n key: tuple. video_id, video instance id.\n values: An iterator over integer video playhead positions.\n\n Yields:\n A dictionary with video_id, instance_id, and histogram.\n The time histogram is a list in which each index represents\n sequential milestone events and the corresponding item at each\n index represents the number of users watching the video.\n\n An example output looks like:\n {'video_id': 123456, 'instance_id': 0, 'histogram': [10, 8, 7, 5, 2, 1]}\n \"\"\"\n # Bucket size is 30 seconds, the value of GCB_VIDEO_TRACKING_CHUNK_SEC\n # in youtube_video.js.\n histogram = mapreduce.Histogram(30)\n for value in values:\n histogram.add(value)\n yield {\n 'video_id': key[0],\n 'instance_id': key[1],\n 'histogram': histogram.to_list()\n }\n\n\nclass YoutubeHistogram(mapreduce.MapReduceJob):\n \"\"\"MapReduce job that generates a histogram for user video engagement.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce_examples.YoutubeHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\"\n\n MAPREDUCE_CLASS = YoutubeHistogramGenerator\n"},"vector":{"kind":"list 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0.899,\n 0.002,\n 3,\n 0.36,\n 0,\n 929,\n 3,\n 1,\n 0,\n 0,\n 88,\n 10,\n 1\n ],\n [\n 14,\n 3,\n 0.901,\n 0.002,\n 3,\n 0.36,\n 0.3333,\n 830,\n 0,\n 0,\n 0,\n 0,\n 0,\n 8,\n 0\n ],\n [\n 14,\n 3,\n 0.903,\n 0.002,\n 3,\n 0.36,\n 0.6667,\n 373,\n 6,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 4,\n 3,\n 0.9079,\n 0.0079,\n 3,\n 0.36,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 4,\n 0.9109,\n 0.002,\n 4,\n 0.8,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 2,\n 1,\n 0.9446,\n 0.0614,\n 1,\n 0.8,\n 1,\n 622,\n 0,\n 3,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 8,\n 2,\n 0.9356,\n 0.0396,\n 2,\n 0.66,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 2,\n 0.9604,\n 0.002,\n 2,\n 0.66,\n 0.3333,\n 428,\n 3,\n 1,\n 0,\n 0,\n 116,\n 10,\n 1\n ],\n [\n 6,\n 2,\n 0.9634,\n 0.004,\n 2,\n 0.66,\n 0.6667,\n 441,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 3,\n 0.9644,\n 0.002,\n 3,\n 0.03,\n 0,\n 241,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 8,\n 2,\n 0.9703,\n 0.0099,\n 2,\n 0.66,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 3,\n 0,\n 0.9901,\n 0.0218,\n 0,\n 0.66,\n 1,\n 830,\n 0,\n 0,\n 0,\n 0,\n 711,\n 0,\n 0\n ],\n [\n 8,\n 1,\n 0.9891,\n 0.0158,\n 1,\n 0.89,\n 0,\n 0,\n 1,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ],\n [\n 14,\n 1,\n 1,\n 0.002,\n 1,\n 0.89,\n 1,\n 770,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 0\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Example of custom MapReduce jobs.\"\"\"","__author__ = [\n 'juliaoh@google.com (Julia Oh)',\n]","import sys","import mapreduce","from models import transforms","_POS_LIMIT_SECONDS = 60 * 8","_SUM = 'sum'","class CsvStudentEventAccumulationPipeline(mapreduce.CsvGenerator):\n \"\"\"Example MapReduce pipeline class for histogram of event instance counts.\n\n This MR pipeline:\n 1. Takes in EventEntity as input source.\n 2. Counts the total number of event instances per user.\n 3. Aggregates event counts across all users.\n 4. Creates a histogram from aggregated event counts."," \"\"\"Example MapReduce pipeline class for histogram of event instance counts.\n\n This MR pipeline:\n 1. Takes in EventEntity as input source.\n 2. Counts the total number of event instances per user.\n 3. Aggregates event counts across all users.\n 4. Creates a histogram from aggregated event counts.\n 5. Flattens the histogram."," _VIDEO_SOURCES = [\n 'tag-youtube-milestone',\n 'tag-youtube-event'\n ]"," def run(self, job):\n \"\"\"Runs the mapreduce pipeline job.\"\"\"\n # Validate input source and output directory. mrs. MapReduce framework\n # expects the value 1 if the job fails. If the input source is empty or\n # the output directory cannot be found, the job is a failure and must\n # return 1.\n source = self.input_data(job)\n if not source:"," \"\"\"Runs the mapreduce pipeline job.\"\"\""," source = self.input_data(job)"," if not source:\n return 1"," return 1"," outdir = self.output_dir()"," if not outdir:\n return 1"," return 1"," user_to_event_instance_count = job.map_data(\n source, self.map_userid_to_1)"," source.close()"," total_event_counts_per_user = job.reduce_data(\n user_to_event_instance_count, self.sum_event_instances_per_user)"," user_to_event_instance_count.close()"," aggregated_event_counts = job.map_data(\n total_event_counts_per_user,\n self.map_all_event_counts_to_single_key\n )"," total_event_counts_per_user.close()"," histogram = job.reduce_data(\n aggregated_event_counts,\n self.create_histogram_from_aggregated_event_counts\n )"," aggregated_event_counts.close()"," flattened_histogram = job.map_data(histogram, self.map)"," histogram.close()"," histogram_csv = job.reduce_data(\n flattened_histogram, self.reduce, format=mapreduce.CsvWriter,\n outdir=outdir)"," flattened_histogram.close()"," histogram_csv.close()"," ready = []"," while not ready:\n ready = job.wait(histogram_csv, timeout=2.0)\n first_map_percent = 100 * job.progress(user_to_event_instance_count)\n first_reduce_percent = 100 * job.progress(\n total_event_counts_per_user)\n second_map_percent = 100 * job.progress(aggregated_event_counts)\n second_reduce_percent = 100 * job.progress(histogram)\n third_map_percent = 100 * job.progress(flattened_histogram)"," ready = job.wait(histogram_csv, timeout=2.0)"," first_map_percent = 100 * job.progress(user_to_event_instance_count)"," first_reduce_percent = 100 * job.progress(\n total_event_counts_per_user)"," second_map_percent = 100 * job.progress(aggregated_event_counts)"," second_reduce_percent = 100 * job.progress(histogram)"," third_map_percent = 100 * job.progress(flattened_histogram)"," third_reduce_percent = 100 * job.progress(histogram_csv)"," string_map = {\n 'map1_name': self.map_userid_to_1.__name__,\n 'map1_progress': first_map_percent,\n 'reduce1_name': self.sum_event_instances_per_user.__name__,\n 'reduce1_progress': first_reduce_percent,\n 'map2_name': self.map_all_event_counts_to_single_key.__name__,\n 'map2_progress': second_map_percent,\n 'reduce2_name': ("," print (\n '%(map1_name)s: %(map1_progress).1f complete. \\n'\n '%(reduce1_name)s: %(reduce1_progress).1f complete. \\n'\n '%(map2_name)s: %(map2_progress).1f complete. \\n'\n '%(reduce2_name)s: %(reduce2_progress).1f complete. \\n'\n 'csv_%(map3_name)s: %(map3_progress).1f complete. \\n'\n 'csv_%(reduce3_name)s: %(reduce3_progress).1f complete. \\n' %\n string_map"," sys.stdout.flush()"," return 0"," def map_userid_to_1(self, unused_key, value):\n \"\"\"Maps user_id to value of 1.\n\n Args:\n unused_key: int. Line number of EventEntity JSON object in file.\n value: str. Instance of EventEntity extracted from file.\n\n Yields:"," \"\"\"Maps user_id to value of 1.\n\n Args:\n unused_key: int. Line number of EventEntity JSON object in file.\n value: str. Instance of EventEntity extracted from file.\n\n Yields:\n A tuple of (user_id, 1)."," json = self.json_parse(value)"," if json and json['user_id']:\n if json['source'] in self._VIDEO_SOURCES:\n video_data = transforms.loads(json['data'])\n if video_data['position'] > _POS_LIMIT_SECONDS:\n # Filter bad data from YouTube API.\n return\n yield json['user_id'], 1"," if json['source'] in self._VIDEO_SOURCES:\n video_data = transforms.loads(json['data'])\n if video_data['position'] > _POS_LIMIT_SECONDS:\n # Filter bad data from YouTube API.\n return"," video_data = transforms.loads(json['data'])"," if video_data['position'] > _POS_LIMIT_SECONDS:\n # Filter bad data from YouTube API.\n return"," return"," yield json['user_id'], 1"," def sum_event_instances_per_user(self, unused_key, values):\n \"\"\"Sums up number of entity instances per student.\n\n Args:\n unused_key: str. Represents user_id.\n values: An iterator over entity instance counts per student.\n\n Yields:"," \"\"\"Sums up number of entity instances per student.\n\n Args:\n unused_key: str. Represents user_id.\n values: An iterator over entity instance counts per student.\n\n Yields:\n A dict with key value pair as:"," yield {_SUM: sum(values)}"," def map_all_event_counts_to_single_key(self, unused_key, value):\n yield _SUM, value[_SUM]"," yield _SUM, value[_SUM]"," def create_histogram_from_aggregated_event_counts(self, unused_key, values):\n \"\"\"Creates a histogram from event entity instance counts.\n\n Args:\n unused_key: str. Constant string 'key' emitted by mapper2.\n values: An iterator over list of integer event instance counts.\n\n Yields:"," \"\"\"Creates a histogram from event entity instance counts.\n\n Args:\n unused_key: str. Constant string 'key' emitted by mapper2.\n values: An iterator over list of integer event instance counts.\n\n Yields:\n A serialized JSON representation of python dictionary. The keys of"," histogram = mapreduce.Histogram(50)"," for value in values:\n histogram.add(value)"," histogram.add(value)"," yield transforms.dumps(\n {index: value for index, value in enumerate(\n histogram.to_noise_filtered_list())})","class CsvStudentEventsHistogram(mapreduce.MapReduceJob):\n \"\"\"MapReduce Job that generates a histogram for event counts per student.\n\n Usage:\n python etl.py run tools.etl.mapreduce_examples.StudentEventsHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\""," \"\"\"MapReduce Job that generates a histogram for event counts per student.\n\n Usage:\n python etl.py run tools.etl.mapreduce_examples.StudentEventsHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\""," MAPREDUCE_CLASS = CsvStudentEventAccumulationPipeline","class StudentDurationAccumulationPipeline(mapreduce.MapReduceBase):\n \"\"\"Sums up amount of time spent on course per student.\n\n This pipeline:\n 1. Takes an EventEntity file as input.\n 2. Sum up all valid page-visit duration values per user.\n 3. Aggregate summed up duration values across all users.\n 4. Create a histogram with these values."," \"\"\"Sums up amount of time spent on course per student.\n\n This pipeline:\n 1. Takes an EventEntity file as input.\n 2. Sum up all valid page-visit duration values per user.\n 3. Aggregate summed up duration values across all users.\n 4. Create a histogram with these values.\n \"\"\""," _VISIT_PAGE = 'visit-page'"," _DURATION_MINUTES_LIMIT = 30"," def run(self, job):\n \"\"\"Runs the mapreduce pipeline job.\"\"\"\n # Validate input source and output directory.\n source = self.input_data(job)\n if not source:\n return 1\n outdir = self.output_dir()\n if not outdir:"," \"\"\"Runs the mapreduce pipeline job.\"\"\""," source = self.input_data(job)"," if not source:\n return 1"," return 1"," outdir = self.output_dir()"," if not outdir:\n return 1"," return 1"," user_to_duration = job.map_data(source, self.map_user_to_duration)"," source.close()"," user_to_total_duration = job.reduce_data(\n user_to_duration, self.sum_total_duration_per_user)"," user_to_duration.close()"," aggregated_duration_values = job.map_data(\n user_to_total_duration,\n self.map_all_user_duration_total_to_single_key\n )"," user_to_total_duration.close()"," histogram = job.reduce_data(\n aggregated_duration_values,\n self.create_histogram_from_duration_distribution,\n outdir=outdir,\n format=mapreduce.JsonWriter\n )"," aggregated_duration_values.close()"," histogram.close()"," ready = []"," while not ready:\n ready = job.wait(histogram, timeout=2.0)\n first_map_percent = 100 * job.progress(user_to_duration)\n first_reduce_percent = 100 * job.progress(user_to_total_duration)\n second_map_percent = 100 * job.progress(aggregated_duration_values)\n second_reduce_percent = 100 * job.progress(histogram)\n string_map = {\n 'map1_name': self.map_user_to_duration.__name__,"," ready = job.wait(histogram, timeout=2.0)"," first_map_percent = 100 * job.progress(user_to_duration)"," first_reduce_percent = 100 * job.progress(user_to_total_duration)"," second_map_percent = 100 * job.progress(aggregated_duration_values)"," second_reduce_percent = 100 * job.progress(histogram)"," string_map = {\n 'map1_name': self.map_user_to_duration.__name__,\n 'map1_progress': first_map_percent,\n 'reduce1_name': self.sum_total_duration_per_user.__name__,\n 'reduce1_progress': first_reduce_percent,\n 'map2_name': (\n self.map_all_user_duration_total_to_single_key.__name__\n ),"," print (\n '%(map1_name)s: %(map1_progress).1f complete. \\n'\n '%(reduce1_name)s: %(reduce1_progress).1f complete. \\n'\n '%(map2_name)s: %(map2_progress).1f complete. \\n'\n '%(reduce2_name)s: %(reduce2_progress).1f complete. \\n' %\n string_map\n )"," sys.stdout.flush()"," return 0"," def map_user_to_duration(self, unused_key, value):\n \"\"\"Maps user_id to duration value in 'visit-page' events.\n\n Args:\n unused_key: int. Line number of EventEntity JSON object in file.\n value: str. Instance of EventEntity extracted from file.\n\n Yields:"," \"\"\"Maps user_id to duration value in 'visit-page' events.\n\n Args:\n unused_key: int. Line number of EventEntity JSON object in file.\n value: str. Instance of EventEntity extracted from file.\n\n Yields:\n A tuple of (user_id, valid duration value in minutes)."," json = self.json_parse(value)"," if json and json['user_id'] and json['source'] == self._VISIT_PAGE:\n event_data = transforms.loads(json['data'])\n # Convert duration in milliseconds to minutes.\n duration_minutes = event_data['duration'] // (1000 * 60)\n if (duration_minutes <= self._DURATION_MINUTES_LIMIT and\n duration_minutes > 0):\n yield json.pop('user_id'), duration_minutes"," event_data = transforms.loads(json['data'])"," duration_minutes = event_data['duration'] // (1000 * 60)"," if (duration_minutes <= self._DURATION_MINUTES_LIMIT and\n duration_minutes > 0):\n yield json.pop('user_id'), duration_minutes"," yield json.pop('user_id'), duration_minutes"," def sum_total_duration_per_user(self, unused_key, values):\n \"\"\"Sums up number of entity instances per student.\n\n Args:\n unused_key: str. Represents user_id.\n values: An iterator over entity instance counts per student.\n\n Yields:"," \"\"\"Sums up number of entity instances per student.\n\n Args:\n unused_key: str. Represents user_id.\n values: An iterator over entity instance counts per student.\n\n Yields:\n A dict with key value pair as:"," yield {_SUM: sum(values)}"," def map_all_user_duration_total_to_single_key(self, unused_key, value):\n yield _SUM, value[_SUM]"," yield _SUM, value[_SUM]"," def create_histogram_from_duration_distribution(self, unused_key, values):\n \"\"\"Creates a histogram from summed up duration values.\n\n Args:\n unused_key: str. Constant string 'sum' emitted by\n map_all_user_duration_total_to_single_key().\n values: An iterator over list of summed up duration values."," \"\"\"Creates a histogram from summed up duration values.\n\n Args:\n unused_key: str. Constant string 'sum' emitted by\n map_all_user_duration_total_to_single_key().\n values: An iterator over list of summed up duration values.\n\n Yields:"," histogram = mapreduce.Histogram(60)"," for value in values:\n histogram.add(value)"," histogram.add(value)"," yield {index: value for index, value in enumerate(\n histogram.to_noise_filtered_list())}","class StudentPageDurationHistogram(mapreduce.MapReduceJob):\n \"\"\"MapReduce Job that generates a histogram for time spent on course pages.\n\n Usage:\n python etl.py run \\\n tools.etl.mapreduce_examples.StudentPageDurationHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'"," \"\"\"MapReduce Job that generates a histogram for time spent on course pages.\n\n Usage:\n python etl.py run \\\n tools.etl.mapreduce_examples.StudentPageDurationHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\""," MAPREDUCE_CLASS = StudentDurationAccumulationPipeline","class WordCount(mapreduce.MapReduceBase):\n \"\"\"Counts word frequency in input.\n\n Output is plain text of the format:\n\n word1: count1\n word2: count2\n ..."," \"\"\"Counts word frequency in input.\n\n Output is plain text of the format:\n\n word1: count1\n word2: count2\n ...\n wordn: countn"," WRITER_CLASS = mapreduce.TextWriter"," def map(self, unused_key, value):\n # value is one line of the input file. We break it into tokens and\n # convert each token to lowercase in order to treat 'To' and 'to' as\n # equivalent.\n tokens = [x.lower() for x in value.split()]\n for token in tokens:\n # Both map and reduce yield rather than return. map yields a\n # (key, value) 2-tuple. In this case, key is the token and value is"," tokens = [x.lower() for x in value.split()]"," for token in tokens:\n # Both map and reduce yield rather than return. map yields a\n # (key, value) 2-tuple. In this case, key is the token and value is\n # always 1, indicating that we've seen the token once per\n # occurrence.\n yield token, 1"," yield token, 1"," def reduce(self, key, values):\n # key will be a token and values will be a list of 1s -- one for each\n # time map saw the token. Like map, reduce yields rather than returning.\n # In this case we yield a plain string containing the token and the sum\n # of its 1s for the WRITER_CLASS to output.\n yield '%s: %s' % (key, sum(values))"," yield '%s: %s' % (key, sum(values))","class WordCountJob(mapreduce.MapReduceJob):\n \"\"\"MapReduce Job that illustrates simple word count of input.\n\n Usage:\n python etl.py run \\\n tools.etl.mapreduce_examples.WordCount \\\n /coursename appid server.appspot.com \\\n --job_args='path/to/input.file path/to/output/directory'"," \"\"\"MapReduce Job that illustrates simple word count of input.\n\n Usage:\n python etl.py run \\\n tools.etl.mapreduce_examples.WordCount \\\n /coursename appid server.appspot.com \\\n --job_args='path/to/input.file path/to/output/directory'\n \"\"\""," MAPREDUCE_CLASS = WordCount","class YoutubeHistogramGenerator(mapreduce.MapReduceBase):\n \"\"\"Generates time histogram of user video engagement.\n\n Input file: EventEntity JSON file.\n Each event has a 'source' that defines a place in a code where the event\n was recorded. Each event has a 'user_id' to represent an actor who\n triggered the event. The event 'data' is a JSON object and its format and\n content depends on the type of the event. For YouTube video events, 'data'"," \"\"\"Generates time histogram of user video engagement.\n\n Input file: EventEntity JSON file.\n Each event has a 'source' that defines a place in a code where the event\n was recorded. Each event has a 'user_id' to represent an actor who\n triggered the event. The event 'data' is a JSON object and its format and\n content depends on the type of the event. For YouTube video events, 'data'\n is a dictionary with 'video_id', 'instance_id', 'event_id', 'position',"," _YOUTUBE_MILESTONE_SOURCE = 'tag-youtube-milestone'"," def map(self, unused_key, value):\n \"\"\"Filters out YouTube video data from EventEntity JSON file.\n\n Args:\n unused_key: int. line number of each EventEntity in file.\n value: str. instance of EventEntity extracted from file.\n\n Yields:"," \"\"\"Filters out YouTube video data from EventEntity JSON file.\n\n Args:\n unused_key: int. line number of each EventEntity in file.\n value: str. instance of EventEntity extracted from file.\n\n Yields:\n A tuple of (video_identifier, time_position) to be passed into"," json = self.json_parse(value)"," if json and json['source'] == self._YOUTUBE_MILESTONE_SOURCE:\n data = transforms.loads(json['data'])\n video_identifier = (data['video_id'], data['instance_id'])\n playhead_position = data['position']\n if (playhead_position <= _POS_LIMIT_SECONDS and\n # Youtube API may return NaN if value couldn't be computed.\n playhead_position != float('nan')):\n yield video_identifier, playhead_position"," data = transforms.loads(json['data'])"," video_identifier = (data['video_id'], data['instance_id'])"," playhead_position = data['position']"," if (playhead_position <= _POS_LIMIT_SECONDS and\n # Youtube API may return NaN if value couldn't be computed.\n playhead_position != float('nan')):\n yield video_identifier, playhead_position"," yield video_identifier, playhead_position"," def reduce(self, key, values):\n \"\"\"Creates a histogram from time_position values.\n\n The value of _BUCKET_SIZE comes from the constant\n GCB_VIDEO_TRACKING_CHUNK_SEC in youtube_video.js. This value indicates\n the interval of the milestone events. If GCB_VIDEO_TRACKING_CHUNK_SEC\n changes, _BUCKET_SIZE will have to be updated accordingly."," \"\"\"Creates a histogram from time_position values.\n\n The value of _BUCKET_SIZE comes from the constant\n GCB_VIDEO_TRACKING_CHUNK_SEC in youtube_video.js. This value indicates\n the interval of the milestone events. If GCB_VIDEO_TRACKING_CHUNK_SEC\n changes, _BUCKET_SIZE will have to be updated accordingly.\n\n Args:"," histogram = mapreduce.Histogram(30)"," for value in values:\n histogram.add(value)"," histogram.add(value)"," yield {\n 'video_id': key[0],\n 'instance_id': key[1],\n 'histogram': histogram.to_list()\n }","class YoutubeHistogram(mapreduce.MapReduceJob):\n \"\"\"MapReduce job that generates a histogram for user video engagement.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce_examples.YoutubeHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'"," \"\"\"MapReduce job that generates a histogram for user video engagement.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce_examples.YoutubeHistogram \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_EventEntity.json path_to_output_directory'\n \"\"\""," MAPREDUCE_CLASS = YoutubeHistogramGenerator"],"string":"[\n \"\\\"\\\"\\\"Example of custom MapReduce jobs.\\\"\\\"\\\"\",\n \"__author__ = [\\n 'juliaoh@google.com (Julia Oh)',\\n]\",\n \"import sys\",\n \"import mapreduce\",\n \"from models import transforms\",\n \"_POS_LIMIT_SECONDS = 60 * 8\",\n \"_SUM = 'sum'\",\n \"class CsvStudentEventAccumulationPipeline(mapreduce.CsvGenerator):\\n \\\"\\\"\\\"Example MapReduce pipeline class for histogram of event instance counts.\\n\\n This MR pipeline:\\n 1. Takes in EventEntity as input source.\\n 2. Counts the total number of event instances per user.\\n 3. Aggregates event counts across all users.\\n 4. Creates a histogram from aggregated event counts.\",\n \" \\\"\\\"\\\"Example MapReduce pipeline class for histogram of event instance counts.\\n\\n This MR pipeline:\\n 1. Takes in EventEntity as input source.\\n 2. Counts the total number of event instances per user.\\n 3. Aggregates event counts across all users.\\n 4. Creates a histogram from aggregated event counts.\\n 5. Flattens the histogram.\",\n \" _VIDEO_SOURCES = [\\n 'tag-youtube-milestone',\\n 'tag-youtube-event'\\n ]\",\n \" def run(self, job):\\n \\\"\\\"\\\"Runs the mapreduce pipeline job.\\\"\\\"\\\"\\n # Validate input source and output directory. mrs. MapReduce framework\\n # expects the value 1 if the job fails. If the input source is empty or\\n # the output directory cannot be found, the job is a failure and must\\n # return 1.\\n source = self.input_data(job)\\n if not source:\",\n \" \\\"\\\"\\\"Runs the mapreduce pipeline job.\\\"\\\"\\\"\",\n \" source = self.input_data(job)\",\n \" if not source:\\n return 1\",\n \" return 1\",\n \" outdir = self.output_dir()\",\n \" if not outdir:\\n return 1\",\n \" return 1\",\n \" user_to_event_instance_count = job.map_data(\\n source, self.map_userid_to_1)\",\n \" source.close()\",\n \" total_event_counts_per_user = job.reduce_data(\\n user_to_event_instance_count, self.sum_event_instances_per_user)\",\n \" user_to_event_instance_count.close()\",\n \" aggregated_event_counts = job.map_data(\\n total_event_counts_per_user,\\n self.map_all_event_counts_to_single_key\\n )\",\n \" total_event_counts_per_user.close()\",\n \" histogram = job.reduce_data(\\n aggregated_event_counts,\\n self.create_histogram_from_aggregated_event_counts\\n )\",\n \" aggregated_event_counts.close()\",\n \" flattened_histogram = job.map_data(histogram, self.map)\",\n \" histogram.close()\",\n \" histogram_csv = job.reduce_data(\\n flattened_histogram, self.reduce, format=mapreduce.CsvWriter,\\n outdir=outdir)\",\n \" flattened_histogram.close()\",\n \" histogram_csv.close()\",\n \" ready = []\",\n \" while not ready:\\n ready = job.wait(histogram_csv, timeout=2.0)\\n first_map_percent = 100 * job.progress(user_to_event_instance_count)\\n first_reduce_percent = 100 * job.progress(\\n total_event_counts_per_user)\\n second_map_percent = 100 * job.progress(aggregated_event_counts)\\n second_reduce_percent = 100 * job.progress(histogram)\\n third_map_percent = 100 * job.progress(flattened_histogram)\",\n \" ready = job.wait(histogram_csv, timeout=2.0)\",\n \" first_map_percent = 100 * job.progress(user_to_event_instance_count)\",\n \" first_reduce_percent = 100 * job.progress(\\n total_event_counts_per_user)\",\n \" second_map_percent = 100 * job.progress(aggregated_event_counts)\",\n \" second_reduce_percent = 100 * job.progress(histogram)\",\n \" third_map_percent = 100 * job.progress(flattened_histogram)\",\n \" third_reduce_percent = 100 * job.progress(histogram_csv)\",\n \" string_map = {\\n 'map1_name': self.map_userid_to_1.__name__,\\n 'map1_progress': first_map_percent,\\n 'reduce1_name': self.sum_event_instances_per_user.__name__,\\n 'reduce1_progress': first_reduce_percent,\\n 'map2_name': self.map_all_event_counts_to_single_key.__name__,\\n 'map2_progress': second_map_percent,\\n 'reduce2_name': (\",\n \" print (\\n '%(map1_name)s: %(map1_progress).1f complete. \\\\n'\\n '%(reduce1_name)s: %(reduce1_progress).1f complete. \\\\n'\\n '%(map2_name)s: %(map2_progress).1f complete. \\\\n'\\n '%(reduce2_name)s: %(reduce2_progress).1f complete. \\\\n'\\n 'csv_%(map3_name)s: %(map3_progress).1f complete. \\\\n'\\n 'csv_%(reduce3_name)s: %(reduce3_progress).1f complete. \\\\n' %\\n string_map\",\n \" sys.stdout.flush()\",\n \" return 0\",\n \" def map_userid_to_1(self, unused_key, value):\\n \\\"\\\"\\\"Maps user_id to value of 1.\\n\\n Args:\\n unused_key: int. Line number of EventEntity JSON object in file.\\n value: str. Instance of EventEntity extracted from file.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Maps user_id to value of 1.\\n\\n Args:\\n unused_key: int. Line number of EventEntity JSON object in file.\\n value: str. Instance of EventEntity extracted from file.\\n\\n Yields:\\n A tuple of (user_id, 1).\",\n \" json = self.json_parse(value)\",\n \" if json and json['user_id']:\\n if json['source'] in self._VIDEO_SOURCES:\\n video_data = transforms.loads(json['data'])\\n if video_data['position'] > _POS_LIMIT_SECONDS:\\n # Filter bad data from YouTube API.\\n return\\n yield json['user_id'], 1\",\n \" if json['source'] in self._VIDEO_SOURCES:\\n video_data = transforms.loads(json['data'])\\n if video_data['position'] > _POS_LIMIT_SECONDS:\\n # Filter bad data from YouTube API.\\n return\",\n \" video_data = transforms.loads(json['data'])\",\n \" if video_data['position'] > _POS_LIMIT_SECONDS:\\n # Filter bad data from YouTube API.\\n return\",\n \" return\",\n \" yield json['user_id'], 1\",\n \" def sum_event_instances_per_user(self, unused_key, values):\\n \\\"\\\"\\\"Sums up number of entity instances per student.\\n\\n Args:\\n unused_key: str. Represents user_id.\\n values: An iterator over entity instance counts per student.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Sums up number of entity instances per student.\\n\\n Args:\\n unused_key: str. Represents user_id.\\n values: An iterator over entity instance counts per student.\\n\\n Yields:\\n A dict with key value pair as:\",\n \" yield {_SUM: sum(values)}\",\n \" def map_all_event_counts_to_single_key(self, unused_key, value):\\n yield _SUM, value[_SUM]\",\n \" yield _SUM, value[_SUM]\",\n \" def create_histogram_from_aggregated_event_counts(self, unused_key, values):\\n \\\"\\\"\\\"Creates a histogram from event entity instance counts.\\n\\n Args:\\n unused_key: str. Constant string 'key' emitted by mapper2.\\n values: An iterator over list of integer event instance counts.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Creates a histogram from event entity instance counts.\\n\\n Args:\\n unused_key: str. Constant string 'key' emitted by mapper2.\\n values: An iterator over list of integer event instance counts.\\n\\n Yields:\\n A serialized JSON representation of python dictionary. The keys of\",\n \" histogram = mapreduce.Histogram(50)\",\n \" for value in values:\\n histogram.add(value)\",\n \" histogram.add(value)\",\n \" yield transforms.dumps(\\n {index: value for index, value in enumerate(\\n histogram.to_noise_filtered_list())})\",\n \"class CsvStudentEventsHistogram(mapreduce.MapReduceJob):\\n \\\"\\\"\\\"MapReduce Job that generates a histogram for event counts per student.\\n\\n Usage:\\n python etl.py run tools.etl.mapreduce_examples.StudentEventsHistogram \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_EventEntity.json path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" \\\"\\\"\\\"MapReduce Job that generates a histogram for event counts per student.\\n\\n Usage:\\n python etl.py run tools.etl.mapreduce_examples.StudentEventsHistogram \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_EventEntity.json path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = CsvStudentEventAccumulationPipeline\",\n \"class StudentDurationAccumulationPipeline(mapreduce.MapReduceBase):\\n \\\"\\\"\\\"Sums up amount of time spent on course per student.\\n\\n This pipeline:\\n 1. Takes an EventEntity file as input.\\n 2. Sum up all valid page-visit duration values per user.\\n 3. Aggregate summed up duration values across all users.\\n 4. Create a histogram with these values.\",\n \" \\\"\\\"\\\"Sums up amount of time spent on course per student.\\n\\n This pipeline:\\n 1. Takes an EventEntity file as input.\\n 2. Sum up all valid page-visit duration values per user.\\n 3. Aggregate summed up duration values across all users.\\n 4. Create a histogram with these values.\\n \\\"\\\"\\\"\",\n \" _VISIT_PAGE = 'visit-page'\",\n \" _DURATION_MINUTES_LIMIT = 30\",\n \" def run(self, job):\\n \\\"\\\"\\\"Runs the mapreduce pipeline job.\\\"\\\"\\\"\\n # Validate input source and output directory.\\n source = self.input_data(job)\\n if not source:\\n return 1\\n outdir = self.output_dir()\\n if not outdir:\",\n \" \\\"\\\"\\\"Runs the mapreduce pipeline job.\\\"\\\"\\\"\",\n \" source = self.input_data(job)\",\n \" if not source:\\n return 1\",\n \" return 1\",\n \" outdir = self.output_dir()\",\n \" if not outdir:\\n return 1\",\n \" return 1\",\n \" user_to_duration = job.map_data(source, self.map_user_to_duration)\",\n \" source.close()\",\n \" user_to_total_duration = job.reduce_data(\\n user_to_duration, self.sum_total_duration_per_user)\",\n \" user_to_duration.close()\",\n \" aggregated_duration_values = job.map_data(\\n user_to_total_duration,\\n self.map_all_user_duration_total_to_single_key\\n )\",\n \" user_to_total_duration.close()\",\n \" histogram = job.reduce_data(\\n aggregated_duration_values,\\n self.create_histogram_from_duration_distribution,\\n outdir=outdir,\\n format=mapreduce.JsonWriter\\n )\",\n \" aggregated_duration_values.close()\",\n \" histogram.close()\",\n \" ready = []\",\n \" while not ready:\\n ready = job.wait(histogram, timeout=2.0)\\n first_map_percent = 100 * job.progress(user_to_duration)\\n first_reduce_percent = 100 * job.progress(user_to_total_duration)\\n second_map_percent = 100 * job.progress(aggregated_duration_values)\\n second_reduce_percent = 100 * job.progress(histogram)\\n string_map = {\\n 'map1_name': self.map_user_to_duration.__name__,\",\n \" ready = job.wait(histogram, timeout=2.0)\",\n \" first_map_percent = 100 * job.progress(user_to_duration)\",\n \" first_reduce_percent = 100 * job.progress(user_to_total_duration)\",\n \" second_map_percent = 100 * job.progress(aggregated_duration_values)\",\n \" second_reduce_percent = 100 * job.progress(histogram)\",\n \" string_map = {\\n 'map1_name': self.map_user_to_duration.__name__,\\n 'map1_progress': first_map_percent,\\n 'reduce1_name': self.sum_total_duration_per_user.__name__,\\n 'reduce1_progress': first_reduce_percent,\\n 'map2_name': (\\n self.map_all_user_duration_total_to_single_key.__name__\\n ),\",\n \" print (\\n '%(map1_name)s: %(map1_progress).1f complete. \\\\n'\\n '%(reduce1_name)s: %(reduce1_progress).1f complete. \\\\n'\\n '%(map2_name)s: %(map2_progress).1f complete. \\\\n'\\n '%(reduce2_name)s: %(reduce2_progress).1f complete. \\\\n' %\\n string_map\\n )\",\n \" sys.stdout.flush()\",\n \" return 0\",\n \" def map_user_to_duration(self, unused_key, value):\\n \\\"\\\"\\\"Maps user_id to duration value in 'visit-page' events.\\n\\n Args:\\n unused_key: int. Line number of EventEntity JSON object in file.\\n value: str. Instance of EventEntity extracted from file.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Maps user_id to duration value in 'visit-page' events.\\n\\n Args:\\n unused_key: int. Line number of EventEntity JSON object in file.\\n value: str. Instance of EventEntity extracted from file.\\n\\n Yields:\\n A tuple of (user_id, valid duration value in minutes).\",\n \" json = self.json_parse(value)\",\n \" if json and json['user_id'] and json['source'] == self._VISIT_PAGE:\\n event_data = transforms.loads(json['data'])\\n # Convert duration in milliseconds to minutes.\\n duration_minutes = event_data['duration'] // (1000 * 60)\\n if (duration_minutes <= self._DURATION_MINUTES_LIMIT and\\n duration_minutes > 0):\\n yield json.pop('user_id'), duration_minutes\",\n \" event_data = transforms.loads(json['data'])\",\n \" duration_minutes = event_data['duration'] // (1000 * 60)\",\n \" if (duration_minutes <= self._DURATION_MINUTES_LIMIT and\\n duration_minutes > 0):\\n yield json.pop('user_id'), duration_minutes\",\n \" yield json.pop('user_id'), duration_minutes\",\n \" def sum_total_duration_per_user(self, unused_key, values):\\n \\\"\\\"\\\"Sums up number of entity instances per student.\\n\\n Args:\\n unused_key: str. Represents user_id.\\n values: An iterator over entity instance counts per student.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Sums up number of entity instances per student.\\n\\n Args:\\n unused_key: str. Represents user_id.\\n values: An iterator over entity instance counts per student.\\n\\n Yields:\\n A dict with key value pair as:\",\n \" yield {_SUM: sum(values)}\",\n \" def map_all_user_duration_total_to_single_key(self, unused_key, value):\\n yield _SUM, value[_SUM]\",\n \" yield _SUM, value[_SUM]\",\n \" def create_histogram_from_duration_distribution(self, unused_key, values):\\n \\\"\\\"\\\"Creates a histogram from summed up duration values.\\n\\n Args:\\n unused_key: str. Constant string 'sum' emitted by\\n map_all_user_duration_total_to_single_key().\\n values: An iterator over list of summed up duration values.\",\n \" \\\"\\\"\\\"Creates a histogram from summed up duration values.\\n\\n Args:\\n unused_key: str. Constant string 'sum' emitted by\\n map_all_user_duration_total_to_single_key().\\n values: An iterator over list of summed up duration values.\\n\\n Yields:\",\n \" histogram = mapreduce.Histogram(60)\",\n \" for value in values:\\n histogram.add(value)\",\n \" histogram.add(value)\",\n \" yield {index: value for index, value in enumerate(\\n histogram.to_noise_filtered_list())}\",\n \"class StudentPageDurationHistogram(mapreduce.MapReduceJob):\\n \\\"\\\"\\\"MapReduce Job that generates a histogram for time spent on course pages.\\n\\n Usage:\\n python etl.py run \\\\\\n tools.etl.mapreduce_examples.StudentPageDurationHistogram \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_EventEntity.json path_to_output_directory'\",\n \" \\\"\\\"\\\"MapReduce Job that generates a histogram for time spent on course pages.\\n\\n Usage:\\n python etl.py run \\\\\\n tools.etl.mapreduce_examples.StudentPageDurationHistogram \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_EventEntity.json path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = StudentDurationAccumulationPipeline\",\n \"class WordCount(mapreduce.MapReduceBase):\\n \\\"\\\"\\\"Counts word frequency in input.\\n\\n Output is plain text of the format:\\n\\n word1: count1\\n word2: count2\\n ...\",\n \" \\\"\\\"\\\"Counts word frequency in input.\\n\\n Output is plain text of the format:\\n\\n word1: count1\\n word2: count2\\n ...\\n wordn: countn\",\n \" WRITER_CLASS = mapreduce.TextWriter\",\n \" def map(self, unused_key, value):\\n # value is one line of the input file. We break it into tokens and\\n # convert each token to lowercase in order to treat 'To' and 'to' as\\n # equivalent.\\n tokens = [x.lower() for x in value.split()]\\n for token in tokens:\\n # Both map and reduce yield rather than return. map yields a\\n # (key, value) 2-tuple. In this case, key is the token and value is\",\n \" tokens = [x.lower() for x in value.split()]\",\n \" for token in tokens:\\n # Both map and reduce yield rather than return. map yields a\\n # (key, value) 2-tuple. In this case, key is the token and value is\\n # always 1, indicating that we've seen the token once per\\n # occurrence.\\n yield token, 1\",\n \" yield token, 1\",\n \" def reduce(self, key, values):\\n # key will be a token and values will be a list of 1s -- one for each\\n # time map saw the token. Like map, reduce yields rather than returning.\\n # In this case we yield a plain string containing the token and the sum\\n # of its 1s for the WRITER_CLASS to output.\\n yield '%s: %s' % (key, sum(values))\",\n \" yield '%s: %s' % (key, sum(values))\",\n \"class WordCountJob(mapreduce.MapReduceJob):\\n \\\"\\\"\\\"MapReduce Job that illustrates simple word count of input.\\n\\n Usage:\\n python etl.py run \\\\\\n tools.etl.mapreduce_examples.WordCount \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path/to/input.file path/to/output/directory'\",\n \" \\\"\\\"\\\"MapReduce Job that illustrates simple word count of input.\\n\\n Usage:\\n python etl.py run \\\\\\n tools.etl.mapreduce_examples.WordCount \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path/to/input.file path/to/output/directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = WordCount\",\n \"class YoutubeHistogramGenerator(mapreduce.MapReduceBase):\\n \\\"\\\"\\\"Generates time histogram of user video engagement.\\n\\n Input file: EventEntity JSON file.\\n Each event has a 'source' that defines a place in a code where the event\\n was recorded. Each event has a 'user_id' to represent an actor who\\n triggered the event. The event 'data' is a JSON object and its format and\\n content depends on the type of the event. For YouTube video events, 'data'\",\n \" \\\"\\\"\\\"Generates time histogram of user video engagement.\\n\\n Input file: EventEntity JSON file.\\n Each event has a 'source' that defines a place in a code where the event\\n was recorded. Each event has a 'user_id' to represent an actor who\\n triggered the event. The event 'data' is a JSON object and its format and\\n content depends on the type of the event. For YouTube video events, 'data'\\n is a dictionary with 'video_id', 'instance_id', 'event_id', 'position',\",\n \" _YOUTUBE_MILESTONE_SOURCE = 'tag-youtube-milestone'\",\n \" def map(self, unused_key, value):\\n \\\"\\\"\\\"Filters out YouTube video data from EventEntity JSON file.\\n\\n Args:\\n unused_key: int. line number of each EventEntity in file.\\n value: str. instance of EventEntity extracted from file.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Filters out YouTube video data from EventEntity JSON file.\\n\\n Args:\\n unused_key: int. line number of each EventEntity in file.\\n value: str. instance of EventEntity extracted from file.\\n\\n Yields:\\n A tuple of (video_identifier, time_position) to be passed into\",\n \" json = self.json_parse(value)\",\n \" if json and json['source'] == self._YOUTUBE_MILESTONE_SOURCE:\\n data = transforms.loads(json['data'])\\n video_identifier = (data['video_id'], data['instance_id'])\\n playhead_position = data['position']\\n if (playhead_position <= _POS_LIMIT_SECONDS and\\n # Youtube API may return NaN if value couldn't be computed.\\n playhead_position != float('nan')):\\n yield video_identifier, playhead_position\",\n \" data = transforms.loads(json['data'])\",\n \" video_identifier = (data['video_id'], data['instance_id'])\",\n \" playhead_position = data['position']\",\n \" if (playhead_position <= _POS_LIMIT_SECONDS and\\n # Youtube API may return NaN if value couldn't be computed.\\n playhead_position != float('nan')):\\n yield video_identifier, playhead_position\",\n \" yield video_identifier, playhead_position\",\n \" def reduce(self, key, values):\\n \\\"\\\"\\\"Creates a histogram from time_position values.\\n\\n The value of _BUCKET_SIZE comes from the constant\\n GCB_VIDEO_TRACKING_CHUNK_SEC in youtube_video.js. This value indicates\\n the interval of the milestone events. If GCB_VIDEO_TRACKING_CHUNK_SEC\\n changes, _BUCKET_SIZE will have to be updated accordingly.\",\n \" \\\"\\\"\\\"Creates a histogram from time_position values.\\n\\n The value of _BUCKET_SIZE comes from the constant\\n GCB_VIDEO_TRACKING_CHUNK_SEC in youtube_video.js. This value indicates\\n the interval of the milestone events. If GCB_VIDEO_TRACKING_CHUNK_SEC\\n changes, _BUCKET_SIZE will have to be updated accordingly.\\n\\n Args:\",\n \" histogram = mapreduce.Histogram(30)\",\n \" for value in values:\\n histogram.add(value)\",\n \" histogram.add(value)\",\n \" yield {\\n 'video_id': key[0],\\n 'instance_id': key[1],\\n 'histogram': histogram.to_list()\\n }\",\n \"class YoutubeHistogram(mapreduce.MapReduceJob):\\n \\\"\\\"\\\"MapReduce job that generates a histogram for user video engagement.\\n\\n Usage: run the following command from the app root folder.\\n\\n python tools/etl/etl.py run tools.etl.mapreduce_examples.YoutubeHistogram \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_EventEntity.json path_to_output_directory'\",\n \" \\\"\\\"\\\"MapReduce job that generates a histogram for user video engagement.\\n\\n Usage: run the following command from the app root folder.\\n\\n python tools/etl/etl.py run tools.etl.mapreduce_examples.YoutubeHistogram \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_EventEntity.json path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = YoutubeHistogramGenerator\"\n]","isConversational":false}}},{"rowIdx":4794,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"MapReduce extensions for ETL.\"\"\"\n\n__author__ = [\n 'johncox@google.com (John Cox)',\n 'juliaoh@google.com (Julia Oh)',\n]\n\nimport csv\nimport os\nimport sys\nfrom xml.etree import ElementTree\n\nimport mrs\n\nfrom models import transforms\nfrom tools.etl import etl_lib\n\n\nclass MapReduceJob(etl_lib.Job):\n \"\"\"Parent classes for custom jobs that run a mapreduce.\n\n Usage:\n python etl.py run path.to.my.job / appid server.appspot.com \\\n --disable_remote \\\n --job_args='path_to_input_file path_to_output_directory'\n \"\"\"\n\n # Subclass of mrs.MapReduce; override in child.\n MAPREDUCE_CLASS = None\n\n def _configure_parser(self):\n \"\"\"Shim that works with the arg parser expected by mrs.Mapreduce.\"\"\"\n self.parser.add_argument(\n 'file', help='Absolute path of the input file', type=str)\n self.parser.add_argument(\n 'output', help='Absolute path of the output directory', type=str)\n\n def main(self):\n if not os.path.exists(self.args.file):\n sys.exit('Input file %s not found' % self.args.file)\n if not os.path.exists(self.args.output):\n sys.exit('Output directory %s not found' % self.args.output)\n mrs.main(self.MAPREDUCE_CLASS, args=self._parsed_etl_args.job_args)\n\n\nclass JsonWriter(mrs.fileformats.Writer):\n \"\"\"Outputs one JSON literal per line.\n\n Example JSON output may look like:\n {'foo': 123, 'bar': 456, 'quz': 789}\n {'foo': 321, 'bar': 654, 'quz': 987}\n .\n .\n .\n {'foo': 456, 'bar': 534, 'quz': 154}\n\n \"\"\"\n\n ext = 'json'\n\n def __init__(self, fileobj, *args, **kwds):\n super(JsonWriter, self).__init__(fileobj, *args, **kwds)\n\n def _write_json(self, write_fn, python_object):\n \"\"\"Writes serialized JSON representation of python_object to file.\n\n Args:\n write_fn: Python file object write() method.\n python_object: object. Contents to write. Must be JSON-serializable.\n\n Raises:\n TypeError: if python_object is not a dict or a list.\n \"\"\"\n if isinstance(python_object, dict):\n write_fn(unicode(\n transforms.dumps(python_object) + '\\n').encode('utf-8'))\n elif isinstance(python_object, list):\n for item in python_object:\n self._write_json(write_fn, item)\n else:\n raise TypeError('Value must be a dict or a list of dicts.')\n\n def writepair(self, kvpair, **unused_kwds):\n unused_key, value = kvpair\n self._write_json(self.fileobj.write, value)\n\n\nclass TextWriter(mrs.fileformats.TextWriter):\n \"\"\"A simplified plain text writer.\"\"\"\n\n ext = 'txt' # Use the expected extension rather than mrs' mtxt default.\n\n def writepair(self, pair, **unused_kwargs):\n _, value = pair\n # Write the value exactly rather than always prefixing it with the key.\n self.fileobj.write(unicode(value).encode('utf-8') + os.linesep)\n\n\nclass MapReduceBase(mrs.MapReduce):\n \"\"\"Common functionalities of MR jobs combined into one class.\"\"\"\n\n # Subclass of mrs.fileformats.Writer. The writer used to format output.\n WRITER_CLASS = JsonWriter\n\n def json_parse(self, value):\n \"\"\"Parses JSON file into Python.\"\"\"\n if value.strip()[-1] == ',':\n value = value.strip()[:-1]\n try:\n return transforms.loads(value)\n # Skip unparseable rows like the first and last\n # pylint: disable=bare-except\n except:\n return None\n\n def make_reduce_data(self, job, interm_data):\n \"\"\"Change the outout format to JSON.\"\"\"\n outdir = self.output_dir()\n output_data = job.reduce_data(\n interm_data, self.reduce, outdir=outdir, format=self.WRITER_CLASS)\n return output_data\n\n\nclass Histogram(object):\n \"\"\"Histogram that bins values into _bucket_size sized intervals.\"\"\"\n\n # Int. Number of consecutive zeros in list of integer values to determine\n # the cutoff point.\n _NUM_ZEROS = 3\n\n def __init__(self, bucket_size):\n # Map of 0-indexed bin #int -> count int\n self._values = {}\n self._bucket_size = bucket_size\n\n def add(self, value):\n \"\"\"Adds value into self._values.\"\"\"\n bin_number = self._get_bin_number(value)\n self._increment_bin(bin_number)\n\n def _get_bin_number(self, value):\n \"\"\"Returns appropriate bin number for given value.\"\"\"\n if value < 0:\n raise ValueError('Cannot calculate index for negative value')\n return max(0, (value - 1) // self._bucket_size)\n\n def _increment_bin(self, n):\n self._values[n] = self._values.get(n, 0) + 1\n\n def to_list(self):\n \"\"\"Returns self._values converted into a list, sorted by its keys.\"\"\"\n try:\n max_key = max(self._values.iterkeys())\n return [self._values.get(n, 0) for n in xrange(0, max_key+1)]\n except ValueError:\n return []\n\n def to_noise_filtered_list(self):\n \"\"\"Converts self._values to a list with junk data removed.\n\n Returns:\n self.to_list(), with junk data removed\n\n \"Junk data\" refers to noise in EventEntity data caused by API\n misbehaviors and certain user behavior. Two known issues are:\n 1. Youtube video data from event source 'tag-youtube-video' and\n 'tag-youtube-milestone' represent user engagement at certain playhead\n positions. Youtube API continues to emit these values even when the\n video has stopped playing, causing a trail of meaningless values in\n the histogram.\n 2. Data from event source 'visit-page' logs duration of a page visit.\n If a user keeps the browser open and goes idle, the duration value\n recorded is skewed since the user wasn't engaged. These values tend\n to be significantly larger than more reliable duration values.\n\n This method filters the long trail of insignificant data by counting\n number of consecutive zeros set in self._NUM_ZEROS and disregarding\n any data after the zeros.\n\n Example:\n self.to_list() returns [1, 2, 3, 4, 5, 0, 0, 0, 0, 1]\n _NUM_ZEROS = 3\n\n output = [1, 2, 3, 4, 5]\n \"\"\"\n zero_counts = 0\n cutoff_index = 0\n values = self.to_list()\n for index, value in enumerate(values):\n if value == 0:\n zero_counts += 1\n if zero_counts == 1:\n cutoff_index = index\n if zero_counts == self._NUM_ZEROS:\n return values[:cutoff_index]\n else:\n cutoff_index = 0\n zero_counts = 0\n return values\n\n\nclass XmlWriter(mrs.fileformats.Writer):\n \"\"\"Writes file in XML format.\n\n The writer does not use the key from kvpair and expects the value to be a\n list of string representation of XML elements.\n\n Example:\n kvpair: some_key, ['<row><name>Jane</name></row>',\n '<row><name>John</name></row>']\n\n Output:\n <rows>\n <row>\n <name>Jane</name>\n </row>\n <row>\n <name>John</name>\n </row>\n </rows>\n \"\"\"\n\n ext = 'xml'\n\n def __init__(self, fileobj, *args, **kwds):\n super(XmlWriter, self).__init__(fileobj, *args, **kwds)\n self.fileobj.write('<rows>')\n\n def writepair(self, kvpair, **unused_kwds):\n unused_key, values = kvpair\n write = self.fileobj.write\n for value in values:\n write(value)\n write('\\n')\n\n def finish(self):\n self.fileobj.write('</rows>')\n self.fileobj.flush()\n\n\nclass XmlGenerator(MapReduceBase):\n \"\"\"Generates a XML file from a JSON formatted input file.\"\"\"\n\n WRITER_CLASS = XmlWriter\n\n def map(self, key, value):\n \"\"\"Converts JSON object to xml.\n\n Args:\n key: int. line number of the value in Entity file.\n value: str. A line of JSON literal extracted from Entity file.\n\n Yields:\n A tuple with the string 'key' and a tuple containing line number and\n string representaiton of the XML element.\n \"\"\"\n json = self.json_parse(value)\n if json:\n root = ElementTree.Element('row')\n transforms.convert_dict_to_xml(root, json)\n yield 'key', (key, ElementTree.tostring(root, encoding='utf-8'))\n\n def reduce(self, unused_key, values):\n \"\"\"Sorts the values by line number to keep the order of the document.\n\n Args:\n unused_key: str. The arbitrary string 'key' set to accumulate all\n values under one key.\n values: list of tuples. Each tuple contains line number and JSON\n literal converted to XML string.\n\n Yields:\n A list of XML strings sorted by the line number.\n \"\"\"\n\n sorted_values = sorted(values, key=lambda x: x[0])\n yield [value[1] for value in sorted_values]\n\n\nclass JsonToXml(MapReduceJob):\n \"\"\"MapReduce Job that converts JSON formatted Entity files to XML.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToXml \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_any_Entity_file path_to_output_directory'\n \"\"\"\n\n MAPREDUCE_CLASS = XmlGenerator\n\n\nclass CsvWriter(mrs.fileformats.Writer):\n \"\"\"Writes file in CSV format.\n\n The default value to be written if the dictionary is missing a key is an\n empty string.\n\n Example:\n kvpair: (some_key, (['bar', 'foo', 'quz'],\n [{'foo': 1, 'bar': 2, 'quz': 3},\n {'bar': 2, 'foo': 3}])\n\n Output:\n 'bar', 'foo', 'quz'\n 2, 1, 3\n 2, 3, ''\n \"\"\"\n\n ext = 'csv'\n\n def __init__(self, fileobj, *args, **kwds):\n super(CsvWriter, self).__init__(fileobj, *args, **kwds)\n\n def writepair(self, kvpair, **unused_kwds):\n \"\"\"Writes list of JSON objects to CSV format.\n\n Args:\n kvpair: tuple of unused_key, and a tuple of master_list and\n json_list. Master_list is a list that contains all the\n fieldnames across json_list sorted in alphabetical order, and\n json_list is a list of JSON objects.\n **unused_kwds: keyword args that won't be used.\n \"\"\"\n unused_key, (master_list, json_list) = kvpair\n writer = csv.DictWriter(\n self.fileobj, fieldnames=master_list, restval='')\n writer.writeheader()\n writer.writerows(json_list)\n\n\nclass CsvGenerator(MapReduceBase):\n \"\"\"Generates a CSV file from a JSON formatted input file.\"\"\"\n\n WRITER_CLASS = CsvWriter\n\n @classmethod\n def _flatten_json(cls, _dict, prefix=''):\n \"\"\"Flattens dict and contained JSON; encodes all values in utf-8.\"\"\"\n for key in _dict.keys():\n value = _dict.pop(key)\n\n _nested = None\n if type(value) == dict:\n _nested = value\n else:\n try:\n _dict_from_value = transforms.loads(value, strict=False)\n if _dict_from_value and type(_dict_from_value) == dict:\n _nested = _dict_from_value\n except: # pylint: disable=bare-except\n pass\n\n if _nested:\n flattened = cls._flatten_json(\n _nested, prefix=prefix + key + '_')\n _dict.update(flattened)\n else:\n _dict[prefix + key] = unicode(value).encode('utf-8')\n return _dict\n\n def map(self, unused_key, value):\n \"\"\"Loads JSON object and flattens it.\n\n Example:\n json['data']['foo'] = 'bar' -> json['data_foo'] = 'bar', with\n json['data'] removed.\n\n Args:\n unused_key: int. line number of the value in Entity file.\n value: str. instance of Entity file extracted from file.\n\n Yields:\n A tuple of string key and flattened dictionary. map() outputs\n constant string 'key' as the key so that all the values can be\n accumulated under one key in reduce(). This accumulation is\n necessary because reduce() must go through the list of all JSON\n literals and determine all existing fieldnames. Then, reduce()\n supplies the master_list of fieldnames to CSVWriter's writepair()\n which uses the list as csv header.\n \"\"\"\n json = self.json_parse(value)\n if json:\n json = CsvGenerator._flatten_json(json)\n yield 'key', json\n\n def reduce(self, unused_key, values):\n \"\"\"Creates a master_list of all the keys present in an Entity file.\n\n Args:\n unused_key: str. constant string 'key' emitted by map().\n values: a generator over list of json objects.\n\n Yields:\n A tuple of master_list and list of json objects.\n master_list is a list of all keys present across every json object.\n This list is used to create header for CSV files.\n \"\"\"\n master_list = []\n values = [value for value in values]\n for value in values:\n for key in value:\n if key not in master_list:\n master_list.append(key)\n try:\n # Convert integer keys from unicode to ints to be sorted correctly.\n # pylint: disable=unnecessary-lambda\n master_list = sorted(master_list, key=lambda item: int(item))\n except ValueError:\n # String keys cannot be converted into integers..\n master_list = sorted(master_list)\n yield master_list, values\n\n\nclass JsonToCsv(MapReduceJob):\n \"\"\"MapReduce Job that converts JSON formatted Entity files to CSV format.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToCsv\n /coursename appid server.appspot.com \\\n --job_args='path_to_an_Entity_file path_to_output_directory'\n \"\"\"\n\n MAPREDUCE_CLASS = CsvGenerator\n\n\nmrs.fileformats.writer_map['csv'] = CsvWriter\nmrs.fileformats.writer_map['json'] = JsonWriter\nmrs.fileformats.writer_map['txt'] = TextWriter\nmrs.fileformats.writer_map['xml'] = XmlWriter\n"},"vector":{"kind":"list like","value":[[8,0,0.0337,0.0022,0,0.66,0,0,1,0,0,0,0,0,0],[14,0,0.0416,0.009,0,0.66,0.0435,777,0,0,0,0,0,5,0],[1,0,0.0494,0.0022,0,0.66,0.087,312,0,1,0,0,312,0,0],[1,0,0.0517,0.0022,0,0.66,0.1304,688,0,1,0,0,688,0,0],[1,0,0.0539,0.0022,0,0.66,0.1739,509,0,1,0,0,509,0,0],[1,0,0.0562,0.0022,0,0.66,0.2174,601,0,1,0,0,601,0,0],[1,0,0.0607,0.0022,0,0.66,0.2609,489,0,1,0,0,489,0,0],[1,0,0.0652,0.0022,0,0.66,0.3043,495,0,1,0,0,495,0,0],[1,0,0.0674,0.0022,0,0.66,0.3478,433,0,1,0,0,433,0,0],[3,0,0.1011,0.0562,0,0.66,0.3913,601,0,2,0,0,276,0,7],[8,1,0.0831,0.0157,1,0.87,0,0,1,0,0,0,0,0,0],[14,1,0.0966,0.0022,1,0.87,0.3333,770,1,0,0,0,0,9,0],[2,1,0.1067,0.0135,1,0.87,0.6667,807,0,1,0,0,0,0,2],[8,2,0.1034,0.0022,2,0.04,0,0,1,0,0,0,0,0,0],[8,2,0.1067,0.0045,2,0.04,0.5,178,3,3,0,0,0,0,1],[8,2,0.1112,0.0045,2,0.04,1,178,3,3,0,0,0,0,1],[2,1,0.1225,0.0135,1,0.87,1,624,0,1,0,0,0,0,5],[4,2,0.1202,0.0045,2,0.02,0,0,0,0,0,0,0,0,2],[8,3,0.1213,0.0022,3,0.18,0,436,3,1,0,0,0,0,1],[4,2,0.1247,0.0045,2,0.02,0.5,0,0,0,0,0,0,0,2],[8,3,0.1258,0.0022,3,0.83,0,436,3,1,0,0,0,0,1],[8,2,0.1281,0.0022,2,0.02,1,624,3,2,0,0,0,0,1],[3,0,0.1787,0.0899,0,0.66,0.4348,902,0,3,0,0,681,0,11],[8,1,0.1483,0.0247,1,0.18,0,0,1,0,0,0,0,0,0],[14,1,0.164,0.0022,1,0.18,0.25,916,1,0,0,0,0,3,0],[2,1,0.1697,0.0045,1,0.18,0.5,555,0,4,0,0,0,0,2],[8,2,0.1708,0.0022,2,0.44,0,555,3,3,0,0,0,0,2],[2,1,0.1944,0.0404,1,0.18,0.75,294,0,3,0,0,0,0,8],[8,2,0.1865,0.0202,2,0.5,0,0,1,0,0,0,0,0,0],[4,2,0.2056,0.018,2,0.5,1,0,3,0,0,0,0,0,8],[8,3,0.2011,0.0045,3,0.53,0,47,3,1,0,0,0,0,4],[4,3,0.209,0.0112,3,0.53,1,0,3,0,0,0,0,0,3],[6,4,0.2079,0.0045,4,0.36,0,434,2,0,0,0,0,0,1],[8,5,0.209,0.0022,5,0.74,0,294,3,2,0,0,0,0,1],[2,1,0.2202,0.0067,1,0.18,1,244,0,3,0,0,0,0,1],[14,2,0.2202,0.0022,2,0.8,0,437,2,0,0,0,0,0,0],[8,2,0.2225,0.0022,2,0.8,1,294,3,2,0,0,0,0,1],[3,0,0.2382,0.0202,0,0.66,0.4783,62,0,1,0,0,984,0,3],[8,1,0.2315,0.0022,1,0.43,0,0,1,0,0,0,0,0,0],[14,1,0.236,0.0022,1,0.43,0.5,916,1,0,0,0,0,3,0],[2,1,0.2438,0.009,1,0.43,1,244,0,3,0,0,0,0,3],[14,2,0.2427,0.0022,2,0.97,0,636,2,0,0,0,0,0,0],[8,2,0.2472,0.0022,2,0.97,1,837,3,1,0,0,0,0,3],[3,0,0.2787,0.0517,0,0.66,0.5217,181,0,2,0,0,838,0,5],[8,1,0.2562,0.0022,1,0.29,0,0,1,0,0,0,0,0,0],[14,1,0.2629,0.0022,1,0.29,0.3333,725,2,0,0,0,0,0,0],[2,1,0.2775,0.0225,1,0.29,0.6667,803,0,2,1,0,0,0,3],[8,2,0.2697,0.0022,2,0.48,0,0,1,0,0,0,0,0,0],[4,2,0.273,0.0045,2,0.48,0.5,0,0,0,0,0,0,0,2],[14,3,0.2742,0.0022,3,0.89,0,441,6,0,0,0,0,0,1],[7,2,0.282,0.0135,2,0.48,1,0,0,1,0,0,0,0,1],[13,3,0.2787,0.0022,3,0.64,0,0,3,0,0,0,0,10,1],[13,3,0.2876,0.0022,3,0.64,0,0,1,0,0,0,0,9,0],[2,1,0.2978,0.0135,1,0.29,1,553,0,3,1,0,0,0,2],[8,2,0.2944,0.0022,2,0.87,0,0,1,0,0,0,0,0,0],[14,2,0.2966,0.0022,2,0.87,0.3333,479,3,0,0,0,577,10,1],[14,2,0.3,0.0045,2,0.87,0.6667,601,3,4,0,0,301,10,1],[13,2,0.3034,0.0022,2,0.87,1,0,2,0,0,0,0,0,0],[3,0,0.3944,0.1708,0,0.66,0.5652,116,0,6,0,0,186,0,11],[8,1,0.3124,0.0022,1,0.38,0,0,1,0,0,0,0,0,0],[14,1,0.3213,0.0022,1,0.38,0.1429,150,1,0,0,0,0,1,0],[2,1,0.3292,0.009,1,0.38,0.2857,555,0,2,0,0,0,0,0],[14,2,0.3303,0.0022,2,0.32,0,349,0,0,0,0,0,6,0],[14,2,0.3326,0.0022,2,0.32,1,639,2,0,0,0,0,0,0],[2,1,0.3404,0.009,1,0.38,0.4286,241,0,2,0,0,0,0,2],[8,2,0.3393,0.0022,2,0.99,0,0,1,0,0,0,0,0,0],[14,2,0.3416,0.0022,2,0.99,0.5,358,3,1,0,0,660,10,1],[8,2,0.3438,0.0022,2,0.99,1,117,3,1,0,0,0,0,1],[2,1,0.3528,0.0112,1,0.38,0.5714,660,0,2,1,0,0,0,2],[8,2,0.3506,0.0022,2,0.44,0,0,1,0,0,0,0,0,0],[4,2,0.3539,0.0045,2,0.44,0.5,0,0,0,0,0,0,0,1],[13,2,0.3573,0.0022,2,0.44,1,0,3,0,0,0,0,10,1],[2,1,0.3629,0.0045,1,0.38,0.7143,117,0,2,0,0,0,0,1],[14,2,0.364,0.0022,2,0.61,0,0,4,0,0,0,0,0,1],[2,1,0.3753,0.0157,1,0.38,0.8571,64,0,1,1,0,0,0,4],[8,2,0.3708,0.0022,2,0.4,0,0,1,0,0,0,0,0,0],[7,2,0.3775,0.0112,2,0.4,1,0,0,1,0,0,0,0,4],[14,3,0.3753,0.0022,3,0.59,0,20,3,1,0,0,442,10,2],[13,3,0.3775,0.0022,3,0.59,1,0,5,0,0,0,0,0,2],[13,3,0.382,0.0022,3,0.59,0,0,0,0,0,0,0,5,0],[2,1,0.4326,0.0944,1,0.38,1,768,0,1,1,0,0,0,2],[8,2,0.418,0.0607,2,0.49,0,0,1,0,0,0,0,0,0],[14,2,0.4494,0.0022,2,0.49,0.2,39,1,0,0,0,0,1,0],[14,2,0.4517,0.0022,2,0.49,0.4,512,1,0,0,0,0,1,0],[14,2,0.4539,0.0022,2,0.49,0.6,721,3,0,0,0,64,10,1],[6,2,0.4663,0.0225,2,0.49,0.8,827,3,0,0,0,0,0,1],[4,3,0.4674,0.0202,3,0.81,0,0,0,0,0,0,0,0,0],[4,4,0.464,0.0045,4,0.8,0,0,0,0,0,0,0,0,0],[14,5,0.4652,0.0022,5,0.73,0,512,2,0,0,0,0,0,0],[4,4,0.4685,0.0045,4,0.8,0.3333,0,0,0,0,0,0,0,0],[13,5,0.4697,0.0022,5,0.74,0,0,6,0,0,0,0,0,0],[14,4,0.4742,0.0022,4,0.8,0.6667,512,1,0,0,0,0,1,0],[14,4,0.4764,0.0022,4,0.8,1,39,1,0,0,0,0,1,0],[13,2,0.4787,0.0022,2,0.49,1,0,2,0,0,0,0,0,0],[3,0,0.5258,0.0831,0,0.66,0.6087,730,0,3,0,0,681,0,7],[8,1,0.5079,0.0427,1,0.2,0,0,1,0,0,0,0,0,0],[14,1,0.5326,0.0022,1,0.2,0.25,916,1,0,0,0,0,3,0],[2,1,0.5393,0.0067,1,0.2,0.5,555,0,4,0,0,0,0,3],[8,2,0.5393,0.0022,2,0.69,0,555,3,3,0,0,0,0,2],[8,2,0.5416,0.0022,2,0.69,1,837,3,1,0,0,0,0,1],[2,1,0.5517,0.0135,1,0.2,0.75,244,0,3,0,0,0,0,2],[14,2,0.5483,0.0022,2,0.21,0,823,2,0,0,0,0,0,0],[14,2,0.5506,0.0022,2,0.21,0.5,837,7,0,0,0,0,0,0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]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"MapReduce extensions for ETL.\"\"\"","__author__ = [\n 'johncox@google.com (John Cox)',\n 'juliaoh@google.com (Julia Oh)',\n]","import csv","import os","import sys","from xml.etree import ElementTree","import mrs","from models import transforms","from tools.etl import etl_lib","class MapReduceJob(etl_lib.Job):\n \"\"\"Parent classes for custom jobs that run a mapreduce.\n\n Usage:\n python etl.py run path.to.my.job / appid server.appspot.com \\\n --disable_remote \\\n --job_args='path_to_input_file path_to_output_directory'\n \"\"\""," \"\"\"Parent classes for custom jobs that run a mapreduce.\n\n Usage:\n python etl.py run path.to.my.job / appid server.appspot.com \\\n --disable_remote \\\n --job_args='path_to_input_file path_to_output_directory'\n \"\"\""," MAPREDUCE_CLASS = None"," def _configure_parser(self):\n \"\"\"Shim that works with the arg parser expected by mrs.Mapreduce.\"\"\"\n self.parser.add_argument(\n 'file', help='Absolute path of the input file', type=str)\n self.parser.add_argument(\n 'output', help='Absolute path of the output directory', type=str)"," \"\"\"Shim that works with the arg parser expected by mrs.Mapreduce.\"\"\""," self.parser.add_argument(\n 'file', help='Absolute path of the input file', type=str)"," self.parser.add_argument(\n 'output', help='Absolute path of the output directory', type=str)"," def main(self):\n if not os.path.exists(self.args.file):\n sys.exit('Input file %s not found' % self.args.file)\n if not os.path.exists(self.args.output):\n sys.exit('Output directory %s not found' % self.args.output)\n mrs.main(self.MAPREDUCE_CLASS, args=self._parsed_etl_args.job_args)"," if not os.path.exists(self.args.file):\n sys.exit('Input file %s not found' % self.args.file)"," sys.exit('Input file %s not found' % self.args.file)"," if not os.path.exists(self.args.output):\n sys.exit('Output directory %s not found' % self.args.output)"," sys.exit('Output directory %s not found' % self.args.output)"," mrs.main(self.MAPREDUCE_CLASS, args=self._parsed_etl_args.job_args)","class JsonWriter(mrs.fileformats.Writer):\n \"\"\"Outputs one JSON literal per line.\n\n Example JSON output may look like:\n {'foo': 123, 'bar': 456, 'quz': 789}\n {'foo': 321, 'bar': 654, 'quz': 987}\n .\n ."," \"\"\"Outputs one JSON literal per line.\n\n Example JSON output may look like:\n {'foo': 123, 'bar': 456, 'quz': 789}\n {'foo': 321, 'bar': 654, 'quz': 987}\n .\n .\n ."," ext = 'json'"," def __init__(self, fileobj, *args, **kwds):\n super(JsonWriter, self).__init__(fileobj, *args, **kwds)"," super(JsonWriter, self).__init__(fileobj, *args, **kwds)"," def _write_json(self, write_fn, python_object):\n \"\"\"Writes serialized JSON representation of python_object to file.\n\n Args:\n write_fn: Python file object write() method.\n python_object: object. Contents to write. Must be JSON-serializable.\n\n Raises:"," \"\"\"Writes serialized JSON representation of python_object to file.\n\n Args:\n write_fn: Python file object write() method.\n python_object: object. Contents to write. Must be JSON-serializable.\n\n Raises:\n TypeError: if python_object is not a dict or a list."," if isinstance(python_object, dict):\n write_fn(unicode(\n transforms.dumps(python_object) + '\\n').encode('utf-8'))\n elif isinstance(python_object, list):\n for item in python_object:\n self._write_json(write_fn, item)\n else:\n raise TypeError('Value must be a dict or a list of dicts.')"," write_fn(unicode(\n transforms.dumps(python_object) + '\\n').encode('utf-8'))"," elif isinstance(python_object, list):\n for item in python_object:\n self._write_json(write_fn, item)\n else:\n raise TypeError('Value must be a dict or a list of dicts.')"," for item in python_object:\n self._write_json(write_fn, item)"," self._write_json(write_fn, item)"," def writepair(self, kvpair, **unused_kwds):\n unused_key, value = kvpair\n self._write_json(self.fileobj.write, value)"," unused_key, value = kvpair"," self._write_json(self.fileobj.write, value)","class TextWriter(mrs.fileformats.TextWriter):\n \"\"\"A simplified plain text writer.\"\"\"\n\n ext = 'txt' # Use the expected extension rather than mrs' mtxt default.\n\n def writepair(self, pair, **unused_kwargs):\n _, value = pair\n # Write the value exactly rather than always prefixing it with the key."," \"\"\"A simplified plain text writer.\"\"\""," ext = 'txt' # Use the expected extension rather than mrs' mtxt default."," def writepair(self, pair, **unused_kwargs):\n _, value = pair\n # Write the value exactly rather than always prefixing it with the key.\n self.fileobj.write(unicode(value).encode('utf-8') + os.linesep)"," _, value = pair"," self.fileobj.write(unicode(value).encode('utf-8') + os.linesep)","class MapReduceBase(mrs.MapReduce):\n \"\"\"Common functionalities of MR jobs combined into one class.\"\"\"\n\n # Subclass of mrs.fileformats.Writer. The writer used to format output.\n WRITER_CLASS = JsonWriter\n\n def json_parse(self, value):\n \"\"\"Parses JSON file into Python.\"\"\""," \"\"\"Common functionalities of MR jobs combined into one class.\"\"\""," WRITER_CLASS = JsonWriter"," def json_parse(self, value):\n \"\"\"Parses JSON file into Python.\"\"\"\n if value.strip()[-1] == ',':\n value = value.strip()[:-1]\n try:\n return transforms.loads(value)\n # Skip unparseable rows like the first and last\n # pylint: disable=bare-except"," \"\"\"Parses JSON file into Python.\"\"\""," if value.strip()[-1] == ',':\n value = value.strip()[:-1]"," value = value.strip()[:-1]"," try:\n return transforms.loads(value)\n # Skip unparseable rows like the first and last\n # pylint: disable=bare-except\n except:\n return None"," return transforms.loads(value)"," return None"," def make_reduce_data(self, job, interm_data):\n \"\"\"Change the outout format to JSON.\"\"\"\n outdir = self.output_dir()\n output_data = job.reduce_data(\n interm_data, self.reduce, outdir=outdir, format=self.WRITER_CLASS)\n return output_data"," \"\"\"Change the outout format to JSON.\"\"\""," outdir = self.output_dir()"," output_data = job.reduce_data(\n interm_data, self.reduce, outdir=outdir, format=self.WRITER_CLASS)"," return output_data","class Histogram(object):\n \"\"\"Histogram that bins values into _bucket_size sized intervals.\"\"\"\n\n # Int. Number of consecutive zeros in list of integer values to determine\n # the cutoff point.\n _NUM_ZEROS = 3\n\n def __init__(self, bucket_size):"," \"\"\"Histogram that bins values into _bucket_size sized intervals.\"\"\""," _NUM_ZEROS = 3"," def __init__(self, bucket_size):\n # Map of 0-indexed bin #int -> count int\n self._values = {}\n self._bucket_size = bucket_size"," self._values = {}"," self._bucket_size = bucket_size"," def add(self, value):\n \"\"\"Adds value into self._values.\"\"\"\n bin_number = self._get_bin_number(value)\n self._increment_bin(bin_number)"," \"\"\"Adds value into self._values.\"\"\""," bin_number = self._get_bin_number(value)"," self._increment_bin(bin_number)"," def _get_bin_number(self, value):\n \"\"\"Returns appropriate bin number for given value.\"\"\"\n if value < 0:\n raise ValueError('Cannot calculate index for negative value')\n return max(0, (value - 1) // self._bucket_size)"," \"\"\"Returns appropriate bin number for given value.\"\"\""," if value < 0:\n raise ValueError('Cannot calculate index for negative value')"," return max(0, (value - 1) // self._bucket_size)"," def _increment_bin(self, n):\n self._values[n] = self._values.get(n, 0) + 1"," self._values[n] = self._values.get(n, 0) + 1"," def to_list(self):\n \"\"\"Returns self._values converted into a list, sorted by its keys.\"\"\"\n try:\n max_key = max(self._values.iterkeys())\n return [self._values.get(n, 0) for n in xrange(0, max_key+1)]\n except ValueError:\n return []"," \"\"\"Returns self._values converted into a list, sorted by its keys.\"\"\""," try:\n max_key = max(self._values.iterkeys())\n return [self._values.get(n, 0) for n in xrange(0, max_key+1)]\n except ValueError:\n return []"," max_key = max(self._values.iterkeys())"," return [self._values.get(n, 0) for n in xrange(0, max_key+1)]"," return []"," def to_noise_filtered_list(self):\n \"\"\"Converts self._values to a list with junk data removed.\n\n Returns:\n self.to_list(), with junk data removed\n\n \"Junk data\" refers to noise in EventEntity data caused by API\n misbehaviors and certain user behavior. Two known issues are:"," \"\"\"Converts self._values to a list with junk data removed.\n\n Returns:\n self.to_list(), with junk data removed\n\n \"Junk data\" refers to noise in EventEntity data caused by API\n misbehaviors and certain user behavior. Two known issues are:\n 1. Youtube video data from event source 'tag-youtube-video' and"," zero_counts = 0"," cutoff_index = 0"," values = self.to_list()"," for index, value in enumerate(values):\n if value == 0:\n zero_counts += 1\n if zero_counts == 1:\n cutoff_index = index\n if zero_counts == self._NUM_ZEROS:\n return values[:cutoff_index]\n else:"," if value == 0:\n zero_counts += 1\n if zero_counts == 1:\n cutoff_index = index\n if zero_counts == self._NUM_ZEROS:\n return values[:cutoff_index]\n else:\n cutoff_index = 0"," if zero_counts == 1:\n cutoff_index = index"," cutoff_index = index"," if zero_counts == self._NUM_ZEROS:\n return values[:cutoff_index]"," return values[:cutoff_index]"," cutoff_index = 0"," zero_counts = 0"," return values","class XmlWriter(mrs.fileformats.Writer):\n \"\"\"Writes file in XML format.\n\n The writer does not use the key from kvpair and expects the value to be a\n list of string representation of XML elements.\n\n Example:\n kvpair: some_key, ['<row><name>Jane</name></row>',"," \"\"\"Writes file in XML format.\n\n The writer does not use the key from kvpair and expects the value to be a\n list of string representation of XML elements.\n\n Example:\n kvpair: some_key, ['<row><name>Jane</name></row>',\n '<row><name>John</name></row>']"," ext = 'xml'"," def __init__(self, fileobj, *args, **kwds):\n super(XmlWriter, self).__init__(fileobj, *args, **kwds)\n self.fileobj.write('<rows>')"," super(XmlWriter, self).__init__(fileobj, *args, **kwds)"," self.fileobj.write('<rows>')"," def writepair(self, kvpair, **unused_kwds):\n unused_key, values = kvpair\n write = self.fileobj.write\n for value in values:\n write(value)\n write('\\n')"," unused_key, values = kvpair"," write = self.fileobj.write"," for value in values:\n write(value)\n write('\\n')"," write(value)"," write('\\n')"," def finish(self):\n self.fileobj.write('</rows>')\n self.fileobj.flush()"," self.fileobj.write('</rows>')"," self.fileobj.flush()","class XmlGenerator(MapReduceBase):\n \"\"\"Generates a XML file from a JSON formatted input file.\"\"\"\n\n WRITER_CLASS = XmlWriter\n\n def map(self, key, value):\n \"\"\"Converts JSON object to xml."," \"\"\"Generates a XML file from a JSON formatted input file.\"\"\""," WRITER_CLASS = XmlWriter"," def map(self, key, value):\n \"\"\"Converts JSON object to xml.\n\n Args:\n key: int. line number of the value in Entity file.\n value: str. A line of JSON literal extracted from Entity file.\n\n Yields:"," \"\"\"Converts JSON object to xml.\n\n Args:\n key: int. line number of the value in Entity file.\n value: str. A line of JSON literal extracted from Entity file.\n\n Yields:\n A tuple with the string 'key' and a tuple containing line number and"," json = self.json_parse(value)"," if json:\n root = ElementTree.Element('row')\n transforms.convert_dict_to_xml(root, json)\n yield 'key', (key, ElementTree.tostring(root, encoding='utf-8'))"," root = ElementTree.Element('row')"," transforms.convert_dict_to_xml(root, json)"," yield 'key', (key, ElementTree.tostring(root, encoding='utf-8'))"," def reduce(self, unused_key, values):\n \"\"\"Sorts the values by line number to keep the order of the document.\n\n Args:\n unused_key: str. The arbitrary string 'key' set to accumulate all\n values under one key.\n values: list of tuples. Each tuple contains line number and JSON\n literal converted to XML string."," \"\"\"Sorts the values by line number to keep the order of the document.\n\n Args:\n unused_key: str. The arbitrary string 'key' set to accumulate all\n values under one key.\n values: list of tuples. Each tuple contains line number and JSON\n literal converted to XML string."," sorted_values = sorted(values, key=lambda x: x[0])"," yield [value[1] for value in sorted_values]","class JsonToXml(MapReduceJob):\n \"\"\"MapReduce Job that converts JSON formatted Entity files to XML.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToXml \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_any_Entity_file path_to_output_directory'"," \"\"\"MapReduce Job that converts JSON formatted Entity files to XML.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToXml \\\n /coursename appid server.appspot.com \\\n --job_args='path_to_any_Entity_file path_to_output_directory'\n \"\"\""," MAPREDUCE_CLASS = XmlGenerator","class CsvWriter(mrs.fileformats.Writer):\n \"\"\"Writes file in CSV format.\n\n The default value to be written if the dictionary is missing a key is an\n empty string.\n\n Example:\n kvpair: (some_key, (['bar', 'foo', 'quz'],"," \"\"\"Writes file in CSV format.\n\n The default value to be written if the dictionary is missing a key is an\n empty string.\n\n Example:\n kvpair: (some_key, (['bar', 'foo', 'quz'],\n [{'foo': 1, 'bar': 2, 'quz': 3},"," ext = 'csv'"," def __init__(self, fileobj, *args, **kwds):\n super(CsvWriter, self).__init__(fileobj, *args, **kwds)"," super(CsvWriter, self).__init__(fileobj, *args, **kwds)"," def writepair(self, kvpair, **unused_kwds):\n \"\"\"Writes list of JSON objects to CSV format.\n\n Args:\n kvpair: tuple of unused_key, and a tuple of master_list and\n json_list. Master_list is a list that contains all the\n fieldnames across json_list sorted in alphabetical order, and\n json_list is a list of JSON objects."," \"\"\"Writes list of JSON objects to CSV format.\n\n Args:\n kvpair: tuple of unused_key, and a tuple of master_list and\n json_list. Master_list is a list that contains all the\n fieldnames across json_list sorted in alphabetical order, and\n json_list is a list of JSON objects.\n **unused_kwds: keyword args that won't be used."," unused_key, (master_list, json_list) = kvpair"," writer = csv.DictWriter(\n self.fileobj, fieldnames=master_list, restval='')"," writer.writeheader()"," writer.writerows(json_list)","class CsvGenerator(MapReduceBase):\n \"\"\"Generates a CSV file from a JSON formatted input file.\"\"\"\n\n WRITER_CLASS = CsvWriter\n\n @classmethod\n def _flatten_json(cls, _dict, prefix=''):\n \"\"\"Flattens dict and contained JSON; encodes all values in utf-8.\"\"\""," \"\"\"Generates a CSV file from a JSON formatted input file.\"\"\""," WRITER_CLASS = CsvWriter"," def _flatten_json(cls, _dict, prefix=''):\n \"\"\"Flattens dict and contained JSON; encodes all values in utf-8.\"\"\"\n for key in _dict.keys():\n value = _dict.pop(key)\n\n _nested = None\n if type(value) == dict:\n _nested = value"," \"\"\"Flattens dict and contained JSON; encodes all values in utf-8.\"\"\""," for key in _dict.keys():\n value = _dict.pop(key)\n\n _nested = None\n if type(value) == dict:\n _nested = value\n else:\n try:"," value = _dict.pop(key)"," _nested = None"," if type(value) == dict:\n _nested = value\n else:\n try:\n _dict_from_value = transforms.loads(value, strict=False)\n if _dict_from_value and type(_dict_from_value) == dict:\n _nested = _dict_from_value\n except: # pylint: disable=bare-except"," _nested = value"," try:\n _dict_from_value = transforms.loads(value, strict=False)\n if _dict_from_value and type(_dict_from_value) == dict:\n _nested = _dict_from_value\n except: # pylint: disable=bare-except\n pass"," _dict_from_value = transforms.loads(value, strict=False)"," if _dict_from_value and type(_dict_from_value) == dict:\n _nested = _dict_from_value"," _nested = _dict_from_value"," if _nested:\n flattened = cls._flatten_json(\n _nested, prefix=prefix + key + '_')\n _dict.update(flattened)\n else:\n _dict[prefix + key] = unicode(value).encode('utf-8')"," flattened = cls._flatten_json(\n _nested, prefix=prefix + key + '_')"," _dict.update(flattened)"," _dict[prefix + key] = unicode(value).encode('utf-8')"," return _dict"," def map(self, unused_key, value):\n \"\"\"Loads JSON object and flattens it.\n\n Example:\n json['data']['foo'] = 'bar' -> json['data_foo'] = 'bar', with\n json['data'] removed.\n\n Args:"," \"\"\"Loads JSON object and flattens it.\n\n Example:\n json['data']['foo'] = 'bar' -> json['data_foo'] = 'bar', with\n json['data'] removed.\n\n Args:\n unused_key: int. line number of the value in Entity file."," json = self.json_parse(value)"," if json:\n json = CsvGenerator._flatten_json(json)\n yield 'key', json"," json = CsvGenerator._flatten_json(json)"," yield 'key', json"," def reduce(self, unused_key, values):\n \"\"\"Creates a master_list of all the keys present in an Entity file.\n\n Args:\n unused_key: str. constant string 'key' emitted by map().\n values: a generator over list of json objects.\n\n Yields:"," \"\"\"Creates a master_list of all the keys present in an Entity file.\n\n Args:\n unused_key: str. constant string 'key' emitted by map().\n values: a generator over list of json objects.\n\n Yields:\n A tuple of master_list and list of json objects."," master_list = []"," values = [value for value in values]"," for value in values:\n for key in value:\n if key not in master_list:\n master_list.append(key)"," for key in value:\n if key not in master_list:\n master_list.append(key)"," if key not in master_list:\n master_list.append(key)"," master_list.append(key)"," try:\n # Convert integer keys from unicode to ints to be sorted correctly.\n # pylint: disable=unnecessary-lambda\n master_list = sorted(master_list, key=lambda item: int(item))\n except ValueError:\n # String keys cannot be converted into integers..\n master_list = sorted(master_list)"," master_list = sorted(master_list, key=lambda item: int(item))"," master_list = sorted(master_list)"," yield master_list, values","class JsonToCsv(MapReduceJob):\n \"\"\"MapReduce Job that converts JSON formatted Entity files to CSV format.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToCsv\n /coursename appid server.appspot.com \\\n --job_args='path_to_an_Entity_file path_to_output_directory'"," \"\"\"MapReduce Job that converts JSON formatted Entity files to CSV format.\n\n Usage: run the following command from the app root folder.\n\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToCsv\n /coursename appid server.appspot.com \\\n --job_args='path_to_an_Entity_file path_to_output_directory'\n \"\"\""," MAPREDUCE_CLASS = CsvGenerator","mrs.fileformats.writer_map['csv'] = CsvWriter","mrs.fileformats.writer_map['json'] = JsonWriter","mrs.fileformats.writer_map['txt'] = TextWriter","mrs.fileformats.writer_map['xml'] = XmlWriter"],"string":"[\n \"\\\"\\\"\\\"MapReduce extensions for ETL.\\\"\\\"\\\"\",\n \"__author__ = [\\n 'johncox@google.com (John Cox)',\\n 'juliaoh@google.com (Julia Oh)',\\n]\",\n \"import csv\",\n \"import os\",\n \"import sys\",\n \"from xml.etree import ElementTree\",\n \"import mrs\",\n \"from models import transforms\",\n \"from tools.etl import etl_lib\",\n \"class MapReduceJob(etl_lib.Job):\\n \\\"\\\"\\\"Parent classes for custom jobs that run a mapreduce.\\n\\n Usage:\\n python etl.py run path.to.my.job / appid server.appspot.com \\\\\\n --disable_remote \\\\\\n --job_args='path_to_input_file path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Parent classes for custom jobs that run a mapreduce.\\n\\n Usage:\\n python etl.py run path.to.my.job / appid server.appspot.com \\\\\\n --disable_remote \\\\\\n --job_args='path_to_input_file path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = None\",\n \" def _configure_parser(self):\\n \\\"\\\"\\\"Shim that works with the arg parser expected by mrs.Mapreduce.\\\"\\\"\\\"\\n self.parser.add_argument(\\n 'file', help='Absolute path of the input file', type=str)\\n self.parser.add_argument(\\n 'output', help='Absolute path of the output directory', type=str)\",\n \" \\\"\\\"\\\"Shim that works with the arg parser expected by mrs.Mapreduce.\\\"\\\"\\\"\",\n \" self.parser.add_argument(\\n 'file', help='Absolute path of the input file', type=str)\",\n \" self.parser.add_argument(\\n 'output', help='Absolute path of the output directory', type=str)\",\n \" def main(self):\\n if not os.path.exists(self.args.file):\\n sys.exit('Input file %s not found' % self.args.file)\\n if not os.path.exists(self.args.output):\\n sys.exit('Output directory %s not found' % self.args.output)\\n mrs.main(self.MAPREDUCE_CLASS, args=self._parsed_etl_args.job_args)\",\n \" if not os.path.exists(self.args.file):\\n sys.exit('Input file %s not found' % self.args.file)\",\n \" sys.exit('Input file %s not found' % self.args.file)\",\n \" if not os.path.exists(self.args.output):\\n sys.exit('Output directory %s not found' % self.args.output)\",\n \" sys.exit('Output directory %s not found' % self.args.output)\",\n \" mrs.main(self.MAPREDUCE_CLASS, args=self._parsed_etl_args.job_args)\",\n \"class JsonWriter(mrs.fileformats.Writer):\\n \\\"\\\"\\\"Outputs one JSON literal per line.\\n\\n Example JSON output may look like:\\n {'foo': 123, 'bar': 456, 'quz': 789}\\n {'foo': 321, 'bar': 654, 'quz': 987}\\n .\\n .\",\n \" \\\"\\\"\\\"Outputs one JSON literal per line.\\n\\n Example JSON output may look like:\\n {'foo': 123, 'bar': 456, 'quz': 789}\\n {'foo': 321, 'bar': 654, 'quz': 987}\\n .\\n .\\n .\",\n \" ext = 'json'\",\n \" def __init__(self, fileobj, *args, **kwds):\\n super(JsonWriter, self).__init__(fileobj, *args, **kwds)\",\n \" super(JsonWriter, self).__init__(fileobj, *args, **kwds)\",\n \" def _write_json(self, write_fn, python_object):\\n \\\"\\\"\\\"Writes serialized JSON representation of python_object to file.\\n\\n Args:\\n write_fn: Python file object write() method.\\n python_object: object. Contents to write. Must be JSON-serializable.\\n\\n Raises:\",\n \" \\\"\\\"\\\"Writes serialized JSON representation of python_object to file.\\n\\n Args:\\n write_fn: Python file object write() method.\\n python_object: object. Contents to write. Must be JSON-serializable.\\n\\n Raises:\\n TypeError: if python_object is not a dict or a list.\",\n \" if isinstance(python_object, dict):\\n write_fn(unicode(\\n transforms.dumps(python_object) + '\\\\n').encode('utf-8'))\\n elif isinstance(python_object, list):\\n for item in python_object:\\n self._write_json(write_fn, item)\\n else:\\n raise TypeError('Value must be a dict or a list of dicts.')\",\n \" write_fn(unicode(\\n transforms.dumps(python_object) + '\\\\n').encode('utf-8'))\",\n \" elif isinstance(python_object, list):\\n for item in python_object:\\n self._write_json(write_fn, item)\\n else:\\n raise TypeError('Value must be a dict or a list of dicts.')\",\n \" for item in python_object:\\n self._write_json(write_fn, item)\",\n \" self._write_json(write_fn, item)\",\n \" def writepair(self, kvpair, **unused_kwds):\\n unused_key, value = kvpair\\n self._write_json(self.fileobj.write, value)\",\n \" unused_key, value = kvpair\",\n \" self._write_json(self.fileobj.write, value)\",\n \"class TextWriter(mrs.fileformats.TextWriter):\\n \\\"\\\"\\\"A simplified plain text writer.\\\"\\\"\\\"\\n\\n ext = 'txt' # Use the expected extension rather than mrs' mtxt default.\\n\\n def writepair(self, pair, **unused_kwargs):\\n _, value = pair\\n # Write the value exactly rather than always prefixing it with the key.\",\n \" \\\"\\\"\\\"A simplified plain text writer.\\\"\\\"\\\"\",\n \" ext = 'txt' # Use the expected extension rather than mrs' mtxt default.\",\n \" def writepair(self, pair, **unused_kwargs):\\n _, value = pair\\n # Write the value exactly rather than always prefixing it with the key.\\n self.fileobj.write(unicode(value).encode('utf-8') + os.linesep)\",\n \" _, value = pair\",\n \" self.fileobj.write(unicode(value).encode('utf-8') + os.linesep)\",\n \"class MapReduceBase(mrs.MapReduce):\\n \\\"\\\"\\\"Common functionalities of MR jobs combined into one class.\\\"\\\"\\\"\\n\\n # Subclass of mrs.fileformats.Writer. The writer used to format output.\\n WRITER_CLASS = JsonWriter\\n\\n def json_parse(self, value):\\n \\\"\\\"\\\"Parses JSON file into Python.\\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Common functionalities of MR jobs combined into one class.\\\"\\\"\\\"\",\n \" WRITER_CLASS = JsonWriter\",\n \" def json_parse(self, value):\\n \\\"\\\"\\\"Parses JSON file into Python.\\\"\\\"\\\"\\n if value.strip()[-1] == ',':\\n value = value.strip()[:-1]\\n try:\\n return transforms.loads(value)\\n # Skip unparseable rows like the first and last\\n # pylint: disable=bare-except\",\n \" \\\"\\\"\\\"Parses JSON file into Python.\\\"\\\"\\\"\",\n \" if value.strip()[-1] == ',':\\n value = value.strip()[:-1]\",\n \" value = value.strip()[:-1]\",\n \" try:\\n return transforms.loads(value)\\n # Skip unparseable rows like the first and last\\n # pylint: disable=bare-except\\n except:\\n return None\",\n \" return transforms.loads(value)\",\n \" return None\",\n \" def make_reduce_data(self, job, interm_data):\\n \\\"\\\"\\\"Change the outout format to JSON.\\\"\\\"\\\"\\n outdir = self.output_dir()\\n output_data = job.reduce_data(\\n interm_data, self.reduce, outdir=outdir, format=self.WRITER_CLASS)\\n return output_data\",\n \" \\\"\\\"\\\"Change the outout format to JSON.\\\"\\\"\\\"\",\n \" outdir = self.output_dir()\",\n \" output_data = job.reduce_data(\\n interm_data, self.reduce, outdir=outdir, format=self.WRITER_CLASS)\",\n \" return output_data\",\n \"class Histogram(object):\\n \\\"\\\"\\\"Histogram that bins values into _bucket_size sized intervals.\\\"\\\"\\\"\\n\\n # Int. Number of consecutive zeros in list of integer values to determine\\n # the cutoff point.\\n _NUM_ZEROS = 3\\n\\n def __init__(self, bucket_size):\",\n \" \\\"\\\"\\\"Histogram that bins values into _bucket_size sized intervals.\\\"\\\"\\\"\",\n \" _NUM_ZEROS = 3\",\n \" def __init__(self, bucket_size):\\n # Map of 0-indexed bin #int -> count int\\n self._values = {}\\n self._bucket_size = bucket_size\",\n \" self._values = {}\",\n \" self._bucket_size = bucket_size\",\n \" def add(self, value):\\n \\\"\\\"\\\"Adds value into self._values.\\\"\\\"\\\"\\n bin_number = self._get_bin_number(value)\\n self._increment_bin(bin_number)\",\n \" \\\"\\\"\\\"Adds value into self._values.\\\"\\\"\\\"\",\n \" bin_number = self._get_bin_number(value)\",\n \" self._increment_bin(bin_number)\",\n \" def _get_bin_number(self, value):\\n \\\"\\\"\\\"Returns appropriate bin number for given value.\\\"\\\"\\\"\\n if value < 0:\\n raise ValueError('Cannot calculate index for negative value')\\n return max(0, (value - 1) // self._bucket_size)\",\n \" \\\"\\\"\\\"Returns appropriate bin number for given value.\\\"\\\"\\\"\",\n \" if value < 0:\\n raise ValueError('Cannot calculate index for negative value')\",\n \" return max(0, (value - 1) // self._bucket_size)\",\n \" def _increment_bin(self, n):\\n self._values[n] = self._values.get(n, 0) + 1\",\n \" self._values[n] = self._values.get(n, 0) + 1\",\n \" def to_list(self):\\n \\\"\\\"\\\"Returns self._values converted into a list, sorted by its keys.\\\"\\\"\\\"\\n try:\\n max_key = max(self._values.iterkeys())\\n return [self._values.get(n, 0) for n in xrange(0, max_key+1)]\\n except ValueError:\\n return []\",\n \" \\\"\\\"\\\"Returns self._values converted into a list, sorted by its keys.\\\"\\\"\\\"\",\n \" try:\\n max_key = max(self._values.iterkeys())\\n return [self._values.get(n, 0) for n in xrange(0, max_key+1)]\\n except ValueError:\\n return []\",\n \" max_key = max(self._values.iterkeys())\",\n \" return [self._values.get(n, 0) for n in xrange(0, max_key+1)]\",\n \" return []\",\n \" def to_noise_filtered_list(self):\\n \\\"\\\"\\\"Converts self._values to a list with junk data removed.\\n\\n Returns:\\n self.to_list(), with junk data removed\\n\\n \\\"Junk data\\\" refers to noise in EventEntity data caused by API\\n misbehaviors and certain user behavior. Two known issues are:\",\n \" \\\"\\\"\\\"Converts self._values to a list with junk data removed.\\n\\n Returns:\\n self.to_list(), with junk data removed\\n\\n \\\"Junk data\\\" refers to noise in EventEntity data caused by API\\n misbehaviors and certain user behavior. Two known issues are:\\n 1. Youtube video data from event source 'tag-youtube-video' and\",\n \" zero_counts = 0\",\n \" cutoff_index = 0\",\n \" values = self.to_list()\",\n \" for index, value in enumerate(values):\\n if value == 0:\\n zero_counts += 1\\n if zero_counts == 1:\\n cutoff_index = index\\n if zero_counts == self._NUM_ZEROS:\\n return values[:cutoff_index]\\n else:\",\n \" if value == 0:\\n zero_counts += 1\\n if zero_counts == 1:\\n cutoff_index = index\\n if zero_counts == self._NUM_ZEROS:\\n return values[:cutoff_index]\\n else:\\n cutoff_index = 0\",\n \" if zero_counts == 1:\\n cutoff_index = index\",\n \" cutoff_index = index\",\n \" if zero_counts == self._NUM_ZEROS:\\n return values[:cutoff_index]\",\n \" return values[:cutoff_index]\",\n \" cutoff_index = 0\",\n \" zero_counts = 0\",\n \" return values\",\n \"class XmlWriter(mrs.fileformats.Writer):\\n \\\"\\\"\\\"Writes file in XML format.\\n\\n The writer does not use the key from kvpair and expects the value to be a\\n list of string representation of XML elements.\\n\\n Example:\\n kvpair: some_key, ['<row><name>Jane</name></row>',\",\n \" \\\"\\\"\\\"Writes file in XML format.\\n\\n The writer does not use the key from kvpair and expects the value to be a\\n list of string representation of XML elements.\\n\\n Example:\\n kvpair: some_key, ['<row><name>Jane</name></row>',\\n '<row><name>John</name></row>']\",\n \" ext = 'xml'\",\n \" def __init__(self, fileobj, *args, **kwds):\\n super(XmlWriter, self).__init__(fileobj, *args, **kwds)\\n self.fileobj.write('<rows>')\",\n \" super(XmlWriter, self).__init__(fileobj, *args, **kwds)\",\n \" self.fileobj.write('<rows>')\",\n \" def writepair(self, kvpair, **unused_kwds):\\n unused_key, values = kvpair\\n write = self.fileobj.write\\n for value in values:\\n write(value)\\n write('\\\\n')\",\n \" unused_key, values = kvpair\",\n \" write = self.fileobj.write\",\n \" for value in values:\\n write(value)\\n write('\\\\n')\",\n \" write(value)\",\n \" write('\\\\n')\",\n \" def finish(self):\\n self.fileobj.write('</rows>')\\n self.fileobj.flush()\",\n \" self.fileobj.write('</rows>')\",\n \" self.fileobj.flush()\",\n \"class XmlGenerator(MapReduceBase):\\n \\\"\\\"\\\"Generates a XML file from a JSON formatted input file.\\\"\\\"\\\"\\n\\n WRITER_CLASS = XmlWriter\\n\\n def map(self, key, value):\\n \\\"\\\"\\\"Converts JSON object to xml.\",\n \" \\\"\\\"\\\"Generates a XML file from a JSON formatted input file.\\\"\\\"\\\"\",\n \" WRITER_CLASS = XmlWriter\",\n \" def map(self, key, value):\\n \\\"\\\"\\\"Converts JSON object to xml.\\n\\n Args:\\n key: int. line number of the value in Entity file.\\n value: str. A line of JSON literal extracted from Entity file.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Converts JSON object to xml.\\n\\n Args:\\n key: int. line number of the value in Entity file.\\n value: str. A line of JSON literal extracted from Entity file.\\n\\n Yields:\\n A tuple with the string 'key' and a tuple containing line number and\",\n \" json = self.json_parse(value)\",\n \" if json:\\n root = ElementTree.Element('row')\\n transforms.convert_dict_to_xml(root, json)\\n yield 'key', (key, ElementTree.tostring(root, encoding='utf-8'))\",\n \" root = ElementTree.Element('row')\",\n \" transforms.convert_dict_to_xml(root, json)\",\n \" yield 'key', (key, ElementTree.tostring(root, encoding='utf-8'))\",\n \" def reduce(self, unused_key, values):\\n \\\"\\\"\\\"Sorts the values by line number to keep the order of the document.\\n\\n Args:\\n unused_key: str. The arbitrary string 'key' set to accumulate all\\n values under one key.\\n values: list of tuples. Each tuple contains line number and JSON\\n literal converted to XML string.\",\n \" \\\"\\\"\\\"Sorts the values by line number to keep the order of the document.\\n\\n Args:\\n unused_key: str. The arbitrary string 'key' set to accumulate all\\n values under one key.\\n values: list of tuples. Each tuple contains line number and JSON\\n literal converted to XML string.\",\n \" sorted_values = sorted(values, key=lambda x: x[0])\",\n \" yield [value[1] for value in sorted_values]\",\n \"class JsonToXml(MapReduceJob):\\n \\\"\\\"\\\"MapReduce Job that converts JSON formatted Entity files to XML.\\n\\n Usage: run the following command from the app root folder.\\n\\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToXml \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_any_Entity_file path_to_output_directory'\",\n \" \\\"\\\"\\\"MapReduce Job that converts JSON formatted Entity files to XML.\\n\\n Usage: run the following command from the app root folder.\\n\\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToXml \\\\\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_any_Entity_file path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = XmlGenerator\",\n \"class CsvWriter(mrs.fileformats.Writer):\\n \\\"\\\"\\\"Writes file in CSV format.\\n\\n The default value to be written if the dictionary is missing a key is an\\n empty string.\\n\\n Example:\\n kvpair: (some_key, (['bar', 'foo', 'quz'],\",\n \" \\\"\\\"\\\"Writes file in CSV format.\\n\\n The default value to be written if the dictionary is missing a key is an\\n empty string.\\n\\n Example:\\n kvpair: (some_key, (['bar', 'foo', 'quz'],\\n [{'foo': 1, 'bar': 2, 'quz': 3},\",\n \" ext = 'csv'\",\n \" def __init__(self, fileobj, *args, **kwds):\\n super(CsvWriter, self).__init__(fileobj, *args, **kwds)\",\n \" super(CsvWriter, self).__init__(fileobj, *args, **kwds)\",\n \" def writepair(self, kvpair, **unused_kwds):\\n \\\"\\\"\\\"Writes list of JSON objects to CSV format.\\n\\n Args:\\n kvpair: tuple of unused_key, and a tuple of master_list and\\n json_list. Master_list is a list that contains all the\\n fieldnames across json_list sorted in alphabetical order, and\\n json_list is a list of JSON objects.\",\n \" \\\"\\\"\\\"Writes list of JSON objects to CSV format.\\n\\n Args:\\n kvpair: tuple of unused_key, and a tuple of master_list and\\n json_list. Master_list is a list that contains all the\\n fieldnames across json_list sorted in alphabetical order, and\\n json_list is a list of JSON objects.\\n **unused_kwds: keyword args that won't be used.\",\n \" unused_key, (master_list, json_list) = kvpair\",\n \" writer = csv.DictWriter(\\n self.fileobj, fieldnames=master_list, restval='')\",\n \" writer.writeheader()\",\n \" writer.writerows(json_list)\",\n \"class CsvGenerator(MapReduceBase):\\n \\\"\\\"\\\"Generates a CSV file from a JSON formatted input file.\\\"\\\"\\\"\\n\\n WRITER_CLASS = CsvWriter\\n\\n @classmethod\\n def _flatten_json(cls, _dict, prefix=''):\\n \\\"\\\"\\\"Flattens dict and contained JSON; encodes all values in utf-8.\\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Generates a CSV file from a JSON formatted input file.\\\"\\\"\\\"\",\n \" WRITER_CLASS = CsvWriter\",\n \" def _flatten_json(cls, _dict, prefix=''):\\n \\\"\\\"\\\"Flattens dict and contained JSON; encodes all values in utf-8.\\\"\\\"\\\"\\n for key in _dict.keys():\\n value = _dict.pop(key)\\n\\n _nested = None\\n if type(value) == dict:\\n _nested = value\",\n \" \\\"\\\"\\\"Flattens dict and contained JSON; encodes all values in utf-8.\\\"\\\"\\\"\",\n \" for key in _dict.keys():\\n value = _dict.pop(key)\\n\\n _nested = None\\n if type(value) == dict:\\n _nested = value\\n else:\\n try:\",\n \" value = _dict.pop(key)\",\n \" _nested = None\",\n \" if type(value) == dict:\\n _nested = value\\n else:\\n try:\\n _dict_from_value = transforms.loads(value, strict=False)\\n if _dict_from_value and type(_dict_from_value) == dict:\\n _nested = _dict_from_value\\n except: # pylint: disable=bare-except\",\n \" _nested = value\",\n \" try:\\n _dict_from_value = transforms.loads(value, strict=False)\\n if _dict_from_value and type(_dict_from_value) == dict:\\n _nested = _dict_from_value\\n except: # pylint: disable=bare-except\\n pass\",\n \" _dict_from_value = transforms.loads(value, strict=False)\",\n \" if _dict_from_value and type(_dict_from_value) == dict:\\n _nested = _dict_from_value\",\n \" _nested = _dict_from_value\",\n \" if _nested:\\n flattened = cls._flatten_json(\\n _nested, prefix=prefix + key + '_')\\n _dict.update(flattened)\\n else:\\n _dict[prefix + key] = unicode(value).encode('utf-8')\",\n \" flattened = cls._flatten_json(\\n _nested, prefix=prefix + key + '_')\",\n \" _dict.update(flattened)\",\n \" _dict[prefix + key] = unicode(value).encode('utf-8')\",\n \" return _dict\",\n \" def map(self, unused_key, value):\\n \\\"\\\"\\\"Loads JSON object and flattens it.\\n\\n Example:\\n json['data']['foo'] = 'bar' -> json['data_foo'] = 'bar', with\\n json['data'] removed.\\n\\n Args:\",\n \" \\\"\\\"\\\"Loads JSON object and flattens it.\\n\\n Example:\\n json['data']['foo'] = 'bar' -> json['data_foo'] = 'bar', with\\n json['data'] removed.\\n\\n Args:\\n unused_key: int. line number of the value in Entity file.\",\n \" json = self.json_parse(value)\",\n \" if json:\\n json = CsvGenerator._flatten_json(json)\\n yield 'key', json\",\n \" json = CsvGenerator._flatten_json(json)\",\n \" yield 'key', json\",\n \" def reduce(self, unused_key, values):\\n \\\"\\\"\\\"Creates a master_list of all the keys present in an Entity file.\\n\\n Args:\\n unused_key: str. constant string 'key' emitted by map().\\n values: a generator over list of json objects.\\n\\n Yields:\",\n \" \\\"\\\"\\\"Creates a master_list of all the keys present in an Entity file.\\n\\n Args:\\n unused_key: str. constant string 'key' emitted by map().\\n values: a generator over list of json objects.\\n\\n Yields:\\n A tuple of master_list and list of json objects.\",\n \" master_list = []\",\n \" values = [value for value in values]\",\n \" for value in values:\\n for key in value:\\n if key not in master_list:\\n master_list.append(key)\",\n \" for key in value:\\n if key not in master_list:\\n master_list.append(key)\",\n \" if key not in master_list:\\n master_list.append(key)\",\n \" master_list.append(key)\",\n \" try:\\n # Convert integer keys from unicode to ints to be sorted correctly.\\n # pylint: disable=unnecessary-lambda\\n master_list = sorted(master_list, key=lambda item: int(item))\\n except ValueError:\\n # String keys cannot be converted into integers..\\n master_list = sorted(master_list)\",\n \" master_list = sorted(master_list, key=lambda item: int(item))\",\n \" master_list = sorted(master_list)\",\n \" yield master_list, values\",\n \"class JsonToCsv(MapReduceJob):\\n \\\"\\\"\\\"MapReduce Job that converts JSON formatted Entity files to CSV format.\\n\\n Usage: run the following command from the app root folder.\\n\\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToCsv\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_an_Entity_file path_to_output_directory'\",\n \" \\\"\\\"\\\"MapReduce Job that converts JSON formatted Entity files to CSV format.\\n\\n Usage: run the following command from the app root folder.\\n\\n python tools/etl/etl.py run tools.etl.mapreduce.JsonToCsv\\n /coursename appid server.appspot.com \\\\\\n --job_args='path_to_an_Entity_file path_to_output_directory'\\n \\\"\\\"\\\"\",\n \" MAPREDUCE_CLASS = CsvGenerator\",\n \"mrs.fileformats.writer_map['csv'] = CsvWriter\",\n \"mrs.fileformats.writer_map['json'] = JsonWriter\",\n \"mrs.fileformats.writer_map['txt'] = TextWriter\",\n \"mrs.fileformats.writer_map['xml'] = XmlWriter\"\n]","isConversational":false}}},{"rowIdx":4795,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Examples of custom extract-transform-load jobs.\n\nCustom jobs are run via tools/etl/etl.py. You must do environment setup before\netl.py can be invoked; see its module docstring for details.\n\nSee tools/etl/etl_lib.py for documentation on writing Job subclasses.\n\"\"\"\n\n__author__ = [\n 'johncox@google.com',\n]\n\nimport os\nimport sys\nimport appengine_config\nfrom models import models\nfrom tools.etl import etl_lib\nfrom google.appengine.api import memcache\nfrom google.appengine.api import namespace_manager\n\n\nclass PrintMemcacheStats(etl_lib.Job):\n \"\"\"Example job that prints remote memcache statistics.\n\n Usage:\n\n etl.py run tools.etl.examples.PrintMemcacheStats /course myapp \\\n server.appspot.com\n\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some\n environment configuration (setting up imports, mostly) before you can run\n etl.py; see the tools/etl/etl.py module-level docstring for details.\n \"\"\"\n\n # String. Template to use when printing memcache stats.\n _STATS_TEMPLATE = \"\"\"Global memcache stats:\n\\tHits: %(hits)s\n\\tItems in cache: %(items)s\n\\tMisses: %(misses)s\n\\tOldest item in seconds: %(oldest_item_age)s\n\\tTotal bytes in cache: %(bytes)s\n\\tTotal bytes retrieved via get: %(byte_hits)s\"\"\"\n\n def main(self):\n # Custom jobs execute locally, but can talk to remote services like the\n # datastore and memcache. Here we get the same memcache stats you can\n # see in the Memcache Viewer part of App Engine's admin console.\n print self._STATS_TEMPLATE % memcache.get_stats()\n\n\nclass UploadFileToCourse(etl_lib.Job):\n \"\"\"Example job that writes a single local file to a remote server.\n\n Usage:\n\n etl.py run tools.etl.examples.UploadFileToCourse /course myapp \\\n server.appspot.com --job_args='/path/to/local/file path/to/remote/file'\n\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some\n environment configuration (setting up imports, mostly) before you can run\n etl.py; see the tools/etl/etl.py module-level docstring for details.\n \"\"\"\n\n def _configure_parser(self):\n # Add custom arguments by manipulating self.parser:\n self.parser.add_argument(\n 'path', help='Absolute path of the file to upload', type=str)\n self.parser.add_argument(\n 'target',\n help=('Internal Course Builder path to upload to (e.g. '\n '\"assets/img/logo.png\")'), type=str)\n\n def main(self):\n # By the time main() is invoked, arguments are parsed and available as\n # self.args. If you need more complicated argument validation than\n # argparse gives you, do it here:\n if not os.path.exists(self.args.path):\n sys.exit('%s does not exist' % self.args.path)\n\n # Arguments passed to etl.py are also parsed and available as\n # self.etl_args. Here we use them to figure out the requested course's\n # context.\n context = etl_lib.get_context(self.etl_args.course_url_prefix)\n # Create the absolute path we'll write to.\n remote_path = os.path.join(\n appengine_config.BUNDLE_ROOT, self.args.target)\n\n with open(self.args.path) as f:\n # Perform the write using the context's filesystem. In a real\n # program you'd probably want to do additional work (preventing\n # overwrites of existing files, etc.).\n context.fs.impl.put(remote_path, f, is_draft=False)\n\n\nclass WriteStudentEmailsToFile(etl_lib.Job):\n \"\"\"Example job that reads student emails from remote server to local file.\n\n Usage:\n\n etl.py run tools.etl.examples.WriteStudentEmailsToFile /course myapp \\\n server.appspot.com --job_args=/path/to/output_file\n\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some\n environment configuration (setting up imports, mostly) before you can run\n etl.py; see the tools/etl/etl.py module-level docstring for details.\n \"\"\"\n\n def _configure_parser(self):\n # Add custom arguments by manipulating self.parser.\n self.parser.add_argument(\n 'path', help='Absolute path to save output to', type=str)\n self.parser.add_argument(\n '--batch_size', default=20,\n help='Number of students to download in each batch', type=int)\n\n def main(self):\n # By the time main() is invoked, arguments are parsed and available as\n # self.args. If you need more complicated argument validation than\n # argparse gives you, do it here:\n if self.args.batch_size < 1:\n sys.exit('--batch size must be positive')\n if os.path.exists(self.args.path):\n sys.exit('Cannot download to %s; file exists' % self.args.path)\n\n # Arguments passed to etl.py are also parsed and available as\n # self.etl_args. Here we use them to figure out the requested course's\n # namespace.\n namespace = etl_lib.get_context(\n self.etl_args.course_url_prefix).get_namespace_name()\n\n # Because our models are namespaced, we need to change to the requested\n # course's namespace before doing datastore reads or we won't find its\n # data. Get the current namespace so we can change back when we're done.\n old_namespace = namespace_manager.get_namespace()\n try:\n namespace_manager.set_namespace(namespace)\n # For this example, we'll only process the first 1000 results. Can\n # do a keys_only query because the student's email is key.name().\n keys = models.Student.all(keys_only=True).fetch(1000)\n finally:\n # The current namespace is global state. We must change it back to\n # the old value no matter what to prevent corrupting datastore\n # operations that run after us.\n namespace_manager.set_namespace(old_namespace)\n\n # Write the results. Done!\n with open(self.args.path, 'w') as f:\n for key in keys:\n f.write(str(key.name() + '\\n'))\n"},"vector":{"kind":"list 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2\n ],\n [\n 8,\n 3,\n 0.9693,\n 0.0061,\n 3,\n 0.21,\n 1,\n 401,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 1\n ],\n [\n 6,\n 2,\n 0.9969,\n 0.0123,\n 2,\n 0.71,\n 0,\n 230,\n 2,\n 0,\n 0,\n 0,\n 0,\n 0,\n 3\n ],\n [\n 8,\n 3,\n 1,\n 0.0061,\n 3,\n 0.71,\n 0,\n 837,\n 3,\n 1,\n 0,\n 0,\n 0,\n 0,\n 3\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Examples of custom extract-transform-load jobs.\n\nCustom jobs are run via tools/etl/etl.py. You must do environment setup before\netl.py can be invoked; see its module docstring for details.\n\nSee tools/etl/etl_lib.py for documentation on writing Job subclasses.\n\"\"\"","__author__ = [\n 'johncox@google.com',\n]","import os","import sys","import appengine_config","from models import models","from tools.etl import etl_lib","from google.appengine.api import memcache","from google.appengine.api import namespace_manager","class PrintMemcacheStats(etl_lib.Job):\n \"\"\"Example job that prints remote memcache statistics.\n\n Usage:\n\n etl.py run tools.etl.examples.PrintMemcacheStats /course myapp \\\n server.appspot.com"," \"\"\"Example job that prints remote memcache statistics.\n\n Usage:\n\n etl.py run tools.etl.examples.PrintMemcacheStats /course myapp \\\n server.appspot.com\n\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some"," _STATS_TEMPLATE = \"\"\"Global memcache stats:\n\\tHits: %(hits)s\n\\tItems in cache: %(items)s\n\\tMisses: %(misses)s\n\\tOldest item in seconds: %(oldest_item_age)s\n\\tTotal bytes in cache: %(bytes)s\n\\tTotal bytes retrieved via get: %(byte_hits)s\"\"\""," def main(self):\n # Custom jobs execute locally, but can talk to remote services like the\n # datastore and memcache. Here we get the same memcache stats you can\n # see in the Memcache Viewer part of App Engine's admin console.\n print(self._STATS_TEMPLATE % memcache.get_stats())"," print(self._STATS_TEMPLATE % memcache.get_stats())","class UploadFileToCourse(etl_lib.Job):\n \"\"\"Example job that writes a single local file to a remote server.\n\n Usage:\n\n etl.py run tools.etl.examples.UploadFileToCourse /course myapp \\\n server.appspot.com --job_args='/path/to/local/file path/to/remote/file'"," \"\"\"Example job that writes a single local file to a remote server.\n\n Usage:\n\n etl.py run tools.etl.examples.UploadFileToCourse /course myapp \\\n server.appspot.com --job_args='/path/to/local/file path/to/remote/file'\n\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some"," def _configure_parser(self):\n # Add custom arguments by manipulating self.parser:\n self.parser.add_argument(\n 'path', help='Absolute path of the file to upload', type=str)\n self.parser.add_argument(\n 'target',\n help=('Internal Course Builder path to upload to (e.g. '\n '\"assets/img/logo.png\")'), type=str)"," self.parser.add_argument(\n 'path', help='Absolute path of the file to upload', type=str)"," self.parser.add_argument(\n 'target',\n help=('Internal Course Builder path to upload to (e.g. '\n '\"assets/img/logo.png\")'), type=str)"," def main(self):\n # By the time main() is invoked, arguments are parsed and available as\n # self.args. If you need more complicated argument validation than\n # argparse gives you, do it here:\n if not os.path.exists(self.args.path):\n sys.exit('%s does not exist' % self.args.path)\n\n # Arguments passed to etl.py are also parsed and available as"," if not os.path.exists(self.args.path):\n sys.exit('%s does not exist' % self.args.path)"," sys.exit('%s does not exist' % self.args.path)"," context = etl_lib.get_context(self.etl_args.course_url_prefix)"," remote_path = os.path.join(\n appengine_config.BUNDLE_ROOT, self.args.target)"," context.fs.impl.put(remote_path, f, is_draft=False)","class WriteStudentEmailsToFile(etl_lib.Job):\n \"\"\"Example job that reads student emails from remote server to local file.\n\n Usage:\n\n etl.py run tools.etl.examples.WriteStudentEmailsToFile /course myapp \\\n server.appspot.com --job_args=/path/to/output_file"," \"\"\"Example job that reads student emails from remote server to local file.\n\n Usage:\n\n etl.py run tools.etl.examples.WriteStudentEmailsToFile /course myapp \\\n server.appspot.com --job_args=/path/to/output_file\n\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some"," def _configure_parser(self):\n # Add custom arguments by manipulating self.parser.\n self.parser.add_argument(\n 'path', help='Absolute path to save output to', type=str)\n self.parser.add_argument(\n '--batch_size', default=20,\n help='Number of students to download in each batch', type=int)"," self.parser.add_argument(\n 'path', help='Absolute path to save output to', type=str)"," self.parser.add_argument(\n '--batch_size', default=20,\n help='Number of students to download in each batch', type=int)"," def main(self):\n # By the time main() is invoked, arguments are parsed and available as\n # self.args. If you need more complicated argument validation than\n # argparse gives you, do it here:\n if self.args.batch_size < 1:\n sys.exit('--batch size must be positive')\n if os.path.exists(self.args.path):\n sys.exit('Cannot download to %s; file exists' % self.args.path)"," if self.args.batch_size < 1:\n sys.exit('--batch size must be positive')"," sys.exit('--batch size must be positive')"," if os.path.exists(self.args.path):\n sys.exit('Cannot download to %s; file exists' % self.args.path)"," sys.exit('Cannot download to %s; file exists' % self.args.path)"," namespace = etl_lib.get_context(\n self.etl_args.course_url_prefix).get_namespace_name()"," old_namespace = namespace_manager.get_namespace()"," try:\n namespace_manager.set_namespace(namespace)\n # For this example, we'll only process the first 1000 results. Can\n # do a keys_only query because the student's email is key.name().\n keys = models.Student.all(keys_only=True).fetch(1000)\n finally:\n # The current namespace is global state. We must change it back to\n # the old value no matter what to prevent corrupting datastore"," namespace_manager.set_namespace(namespace)"," keys = models.Student.all(keys_only=True).fetch(1000)"," namespace_manager.set_namespace(old_namespace)"," for key in keys:\n f.write(str(key.name() + '\\n'))"," f.write(str(key.name() + '\\n'))"],"string":"[\n \"\\\"\\\"\\\"Examples of custom extract-transform-load jobs.\\n\\nCustom jobs are run via tools/etl/etl.py. You must do environment setup before\\netl.py can be invoked; see its module docstring for details.\\n\\nSee tools/etl/etl_lib.py for documentation on writing Job subclasses.\\n\\\"\\\"\\\"\",\n \"__author__ = [\\n 'johncox@google.com',\\n]\",\n \"import os\",\n \"import sys\",\n \"import appengine_config\",\n \"from models import models\",\n \"from tools.etl import etl_lib\",\n \"from google.appengine.api import memcache\",\n \"from google.appengine.api import namespace_manager\",\n \"class PrintMemcacheStats(etl_lib.Job):\\n \\\"\\\"\\\"Example job that prints remote memcache statistics.\\n\\n Usage:\\n\\n etl.py run tools.etl.examples.PrintMemcacheStats /course myapp \\\\\\n server.appspot.com\",\n \" \\\"\\\"\\\"Example job that prints remote memcache statistics.\\n\\n Usage:\\n\\n etl.py run tools.etl.examples.PrintMemcacheStats /course myapp \\\\\\n server.appspot.com\\n\\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some\",\n \" _STATS_TEMPLATE = \\\"\\\"\\\"Global memcache stats:\\n\\\\tHits: %(hits)s\\n\\\\tItems in cache: %(items)s\\n\\\\tMisses: %(misses)s\\n\\\\tOldest item in seconds: %(oldest_item_age)s\\n\\\\tTotal bytes in cache: %(bytes)s\\n\\\\tTotal bytes retrieved via get: %(byte_hits)s\\\"\\\"\\\"\",\n \" def main(self):\\n # Custom jobs execute locally, but can talk to remote services like the\\n # datastore and memcache. Here we get the same memcache stats you can\\n # see in the Memcache Viewer part of App Engine's admin console.\\n print(self._STATS_TEMPLATE % memcache.get_stats())\",\n \" print(self._STATS_TEMPLATE % memcache.get_stats())\",\n \"class UploadFileToCourse(etl_lib.Job):\\n \\\"\\\"\\\"Example job that writes a single local file to a remote server.\\n\\n Usage:\\n\\n etl.py run tools.etl.examples.UploadFileToCourse /course myapp \\\\\\n server.appspot.com --job_args='/path/to/local/file path/to/remote/file'\",\n \" \\\"\\\"\\\"Example job that writes a single local file to a remote server.\\n\\n Usage:\\n\\n etl.py run tools.etl.examples.UploadFileToCourse /course myapp \\\\\\n server.appspot.com --job_args='/path/to/local/file path/to/remote/file'\\n\\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some\",\n \" def _configure_parser(self):\\n # Add custom arguments by manipulating self.parser:\\n self.parser.add_argument(\\n 'path', help='Absolute path of the file to upload', type=str)\\n self.parser.add_argument(\\n 'target',\\n help=('Internal Course Builder path to upload to (e.g. '\\n '\\\"assets/img/logo.png\\\")'), type=str)\",\n \" self.parser.add_argument(\\n 'path', help='Absolute path of the file to upload', type=str)\",\n \" self.parser.add_argument(\\n 'target',\\n help=('Internal Course Builder path to upload to (e.g. '\\n '\\\"assets/img/logo.png\\\")'), type=str)\",\n \" def main(self):\\n # By the time main() is invoked, arguments are parsed and available as\\n # self.args. If you need more complicated argument validation than\\n # argparse gives you, do it here:\\n if not os.path.exists(self.args.path):\\n sys.exit('%s does not exist' % self.args.path)\\n\\n # Arguments passed to etl.py are also parsed and available as\",\n \" if not os.path.exists(self.args.path):\\n sys.exit('%s does not exist' % self.args.path)\",\n \" sys.exit('%s does not exist' % self.args.path)\",\n \" context = etl_lib.get_context(self.etl_args.course_url_prefix)\",\n \" remote_path = os.path.join(\\n appengine_config.BUNDLE_ROOT, self.args.target)\",\n \" context.fs.impl.put(remote_path, f, is_draft=False)\",\n \"class WriteStudentEmailsToFile(etl_lib.Job):\\n \\\"\\\"\\\"Example job that reads student emails from remote server to local file.\\n\\n Usage:\\n\\n etl.py run tools.etl.examples.WriteStudentEmailsToFile /course myapp \\\\\\n server.appspot.com --job_args=/path/to/output_file\",\n \" \\\"\\\"\\\"Example job that reads student emails from remote server to local file.\\n\\n Usage:\\n\\n etl.py run tools.etl.examples.WriteStudentEmailsToFile /course myapp \\\\\\n server.appspot.com --job_args=/path/to/output_file\\n\\n Arguments to etl.py are documented in tools/etl/etl.py. You must do some\",\n \" def _configure_parser(self):\\n # Add custom arguments by manipulating self.parser.\\n self.parser.add_argument(\\n 'path', help='Absolute path to save output to', type=str)\\n self.parser.add_argument(\\n '--batch_size', default=20,\\n help='Number of students to download in each batch', type=int)\",\n \" self.parser.add_argument(\\n 'path', help='Absolute path to save output to', type=str)\",\n \" self.parser.add_argument(\\n '--batch_size', default=20,\\n help='Number of students to download in each batch', type=int)\",\n \" def main(self):\\n # By the time main() is invoked, arguments are parsed and available as\\n # self.args. If you need more complicated argument validation than\\n # argparse gives you, do it here:\\n if self.args.batch_size < 1:\\n sys.exit('--batch size must be positive')\\n if os.path.exists(self.args.path):\\n sys.exit('Cannot download to %s; file exists' % self.args.path)\",\n \" if self.args.batch_size < 1:\\n sys.exit('--batch size must be positive')\",\n \" sys.exit('--batch size must be positive')\",\n \" if os.path.exists(self.args.path):\\n sys.exit('Cannot download to %s; file exists' % self.args.path)\",\n \" sys.exit('Cannot download to %s; file exists' % self.args.path)\",\n \" namespace = etl_lib.get_context(\\n self.etl_args.course_url_prefix).get_namespace_name()\",\n \" old_namespace = namespace_manager.get_namespace()\",\n \" try:\\n namespace_manager.set_namespace(namespace)\\n # For this example, we'll only process the first 1000 results. Can\\n # do a keys_only query because the student's email is key.name().\\n keys = models.Student.all(keys_only=True).fetch(1000)\\n finally:\\n # The current namespace is global state. We must change it back to\\n # the old value no matter what to prevent corrupting datastore\",\n \" namespace_manager.set_namespace(namespace)\",\n \" keys = models.Student.all(keys_only=True).fetch(1000)\",\n \" namespace_manager.set_namespace(old_namespace)\",\n \" for key in keys:\\n f.write(str(key.name() + '\\\\n'))\",\n \" f.write(str(key.name() + '\\\\n'))\"\n]","isConversational":false}}},{"rowIdx":4796,"cells":{"code":{"kind":"string","value":"# Copyright 2012 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Allows export of Lessons and Units to other systems.\"\"\"\n\n__author__ = 'psimakov@google.com (Pavel Simakov)'\n\nfrom datetime import datetime\nimport os\n\nimport verify\n\nRELEASE_TAG = '1.0'\n\n\ndef echo(unused_x):\n pass\n\n\nJS_GCB_REGEX = \"\"\"\nfunction gcb_regex(base, modifiers) {\n // NB: base should already have backslashes escaped\n return new RegExp(base, modifiers);\n}\n\n\"\"\"\n\n\ndef export_to_javascript(filename, lines, date):\n \"\"\"Creates JavaScript export function from given lines and writes a file.\"\"\"\n code = []\n code.append(JS_GCB_REGEX)\n code.append('function gcb_import(){')\n for line in lines:\n if line:\n code.append(' %s' % line)\n else:\n code.append('')\n code.append('')\n code.append(' course = Array();')\n code.append(' course[\"units\"] = units;')\n code.append(' course[\"assessments\"] = assessments;')\n code.append(' return course;')\n code.append('}')\n\n afile = open('%s.js' % filename, 'w')\n afile.write('// Course Builder %s JavaScript Export on %s\\n' % (\n RELEASE_TAG, date))\n afile.write('// begin\\n')\n afile.write('\\n'.join(code))\n afile.write('\\n// end')\n afile.close()\n\n\nPYTHON_GCB_REGEX = \"\"\"\nimport re\ndef gcb_regex(base, modifiers):\n flags = 0\n if 'i' in modifiers:\n flags |= re.IGNORECASE\n if 'm' in modifiers:\n flags |= re.MULTILINE\n return re.compile(base, flags)\n\n\"\"\"\n\n\ndef export_to_python(filename, lines, date):\n \"\"\"Creates Python export function from given lines and writes a file.\"\"\"\n code = []\n code.append('class Array(dict):')\n code.append(' pass')\n code.append('')\n code.append('true = True')\n code.append('false = False')\n code.append(PYTHON_GCB_REGEX)\n code.append('def gcb_import():')\n for line in lines:\n code.append(' %s' % line)\n code.append('')\n code.append(' course = Array();')\n code.append(' course[\"units\"] = units;')\n code.append(' course[\"assessments\"] = assessments;')\n code.append(' return course;')\n\n afile = open('%s.py' % filename, 'w')\n afile.write('# Course Builder %s Python Export on %s\\n' % (\n RELEASE_TAG, date))\n afile.write('# begin\\n')\n afile.write('\\n'.join(code))\n afile.write('\\n# end')\n afile.close()\n\n\n# TODO(psimakov): implement PHP_GCB_REGEX, but it's unclear how to return a new\n# regexp object in PHP. maybe see http://www.regular-expressions.info/php.html\n\n\ndef export_to_php(filename, lines, date):\n \"\"\"Creates PHP export function from given lines and writes a file.\"\"\"\n code = []\n code.append('function gcb_import(){')\n for line in lines:\n if line:\n code.append(' $%s' % line)\n else:\n code.append('')\n code.append('')\n code.append(' $course = Array();')\n code.append(' $course[\"units\"] = $units;')\n code.append(' $course[\"assessments\"] = $assessments;')\n code.append(' return $course;')\n code.append('}')\n\n afile = open('%s.php' % filename, 'w')\n afile.write('<?php\\n')\n afile.write('// Course Builder %s PHP Export on %s\\n' %\n (RELEASE_TAG, date))\n afile.write('// begin\\n')\n afile.write('\\n'.join(code))\n afile.write('\\n// end')\n afile.write('?>')\n afile.close()\n\n\ndef export_to_file(filename, lines):\n date = datetime.utcnow()\n export_to_javascript(filename, lines, date)\n export_to_python(filename, lines, date)\n export_to_php(filename, lines, date)\n\n\nif __name__ == '__main__':\n print 'Export started using %s' % os.path.realpath(__file__)\n\n verifier = verify.Verifier()\n errors = verifier.load_and_verify_model(echo)\n if errors:\n raise Exception('Please fix all errors reported by tools/verify.py '\n 'before continuing!')\n\n fname = os.path.join(os.getcwd(), 'coursebuilder_course')\n export_to_file(fname, verifier.export)\n print 'Export complete to %s' % fname\n"},"vector":{"kind":"list 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'psimakov@google.com (Pavel Simakov)'","from datetime import datetime","import os","import verify","RELEASE_TAG = '1.0'","def echo(unused_x):\n pass","JS_GCB_REGEX = \"\"\"\nfunction gcb_regex(base, modifiers) {\n // NB: base should already have backslashes escaped\n return new RegExp(base, modifiers);\n}\n\n\"\"\"","def export_to_javascript(filename, lines, date):\n \"\"\"Creates JavaScript export function from given lines and writes a file.\"\"\"\n code = []\n code.append(JS_GCB_REGEX)\n code.append('function gcb_import(){')\n for line in lines:\n if line:\n code.append(' %s' % line)"," \"\"\"Creates JavaScript export function from given lines and writes a file.\"\"\""," code = []"," code.append(JS_GCB_REGEX)"," code.append('function gcb_import(){')"," for line in lines:\n if line:\n code.append(' %s' % line)\n else:\n code.append('')"," if line:\n code.append(' %s' % line)\n else:\n code.append('')"," code.append(' %s' % line)"," code.append('')"," code.append('')"," code.append(' course = Array();')"," code.append(' course[\"units\"] = units;')"," code.append(' course[\"assessments\"] = assessments;')"," code.append(' return course;')"," code.append('}')"," afile = open('%s.js' % filename, 'w')"," afile.write('// Course Builder %s JavaScript Export on %s\\n' % (\n RELEASE_TAG, date))"," afile.write('// begin\\n')"," afile.write('\\n'.join(code))"," afile.write('\\n// end')"," afile.close()","PYTHON_GCB_REGEX = \"\"\"\nimport re\ndef gcb_regex(base, modifiers):\n flags = 0\n if 'i' in modifiers:\n flags |= re.IGNORECASE\n if 'm' in modifiers:\n flags |= re.MULTILINE","def export_to_python(filename, lines, date):\n \"\"\"Creates Python export function from given lines and writes a file.\"\"\"\n code = []\n code.append('class Array(dict):')\n code.append(' pass')\n code.append('')\n code.append('true = True')\n code.append('false = False')"," \"\"\"Creates Python export function from given lines and writes a file.\"\"\""," code = []"," code.append('class Array(dict):')"," code.append(' pass')"," code.append('')"," code.append('true = True')"," code.append('false = False')"," code.append(PYTHON_GCB_REGEX)"," code.append('def gcb_import():')"," for line in lines:\n code.append(' %s' % line)"," code.append(' %s' % line)"," code.append('')"," code.append(' course = Array();')"," code.append(' course[\"units\"] = units;')"," code.append(' course[\"assessments\"] = assessments;')"," code.append(' return course;')"," afile = open('%s.py' % filename, 'w')"," afile.write('# Course Builder %s Python Export on %s\\n' % (\n RELEASE_TAG, date))"," afile.write('# begin\\n')"," afile.write('\\n'.join(code))"," afile.write('\\n# end')"," afile.close()","def export_to_php(filename, lines, date):\n \"\"\"Creates PHP export function from given lines and writes a file.\"\"\"\n code = []\n code.append('function gcb_import(){')\n for line in lines:\n if line:\n code.append(' $%s' % line)\n else:"," \"\"\"Creates PHP export function from given lines and writes a file.\"\"\""," code = []"," code.append('function gcb_import(){')"," for line in lines:\n if line:\n code.append(' $%s' % line)\n else:\n code.append('')"," if line:\n code.append(' $%s' % line)\n else:\n code.append('')"," code.append(' $%s' % line)"," code.append('')"," code.append('')"," code.append(' $course = Array();')"," code.append(' $course[\"units\"] = $units;')"," code.append(' $course[\"assessments\"] = $assessments;')"," code.append(' return $course;')"," code.append('}')"," afile = open('%s.php' % filename, 'w')"," afile.write('<?php\\n')"," afile.write('// Course Builder %s PHP Export on %s\\n' %\n (RELEASE_TAG, date))"," afile.write('// begin\\n')"," afile.write('\\n'.join(code))"," afile.write('\\n// end')"," afile.write('?>')"," afile.close()","def export_to_file(filename, lines):\n date = datetime.utcnow()\n export_to_javascript(filename, lines, date)\n export_to_python(filename, lines, date)\n export_to_php(filename, lines, date)"," date = datetime.utcnow()"," export_to_javascript(filename, lines, date)"," export_to_python(filename, lines, date)"," export_to_php(filename, lines, date)","if __name__ == '__main__':\n print('Export started using %s' % os.path.realpath(__file__))\n\n verifier = verify.Verifier()\n errors = verifier.load_and_verify_model(echo)\n if errors:\n raise Exception('Please fix all errors reported by tools/verify.py '\n 'before continuing!')"," print('Export started using %s' % os.path.realpath(__file__))"," verifier = verify.Verifier()"," errors = verifier.load_and_verify_model(echo)"," if errors:\n raise Exception('Please fix all errors reported by tools/verify.py '\n 'before continuing!')"," fname = os.path.join(os.getcwd(), 'coursebuilder_course')"," export_to_file(fname, verifier.export)"," print('Export complete to %s' % fname)"],"string":"[\n \"\\\"\\\"\\\"Allows export of Lessons and Units to other systems.\\\"\\\"\\\"\",\n \"__author__ = 'psimakov@google.com (Pavel Simakov)'\",\n \"from datetime import datetime\",\n \"import os\",\n \"import verify\",\n \"RELEASE_TAG = '1.0'\",\n \"def echo(unused_x):\\n pass\",\n \"JS_GCB_REGEX = \\\"\\\"\\\"\\nfunction gcb_regex(base, modifiers) {\\n // NB: base should already have backslashes escaped\\n return new RegExp(base, modifiers);\\n}\\n\\n\\\"\\\"\\\"\",\n \"def export_to_javascript(filename, lines, date):\\n \\\"\\\"\\\"Creates JavaScript export function from given lines and writes a file.\\\"\\\"\\\"\\n code = []\\n code.append(JS_GCB_REGEX)\\n code.append('function gcb_import(){')\\n for line in lines:\\n if line:\\n code.append(' %s' % line)\",\n \" \\\"\\\"\\\"Creates JavaScript export function from given lines and writes a file.\\\"\\\"\\\"\",\n \" code = []\",\n \" code.append(JS_GCB_REGEX)\",\n \" code.append('function gcb_import(){')\",\n \" for line in lines:\\n if line:\\n code.append(' %s' % line)\\n else:\\n code.append('')\",\n \" if line:\\n code.append(' %s' % line)\\n else:\\n code.append('')\",\n \" code.append(' %s' % line)\",\n \" code.append('')\",\n \" code.append('')\",\n \" code.append(' course = Array();')\",\n \" code.append(' course[\\\"units\\\"] = units;')\",\n \" code.append(' course[\\\"assessments\\\"] = assessments;')\",\n \" code.append(' return course;')\",\n \" code.append('}')\",\n \" afile = open('%s.js' % filename, 'w')\",\n \" afile.write('// Course Builder %s JavaScript Export on %s\\\\n' % (\\n RELEASE_TAG, date))\",\n \" afile.write('// begin\\\\n')\",\n \" afile.write('\\\\n'.join(code))\",\n \" afile.write('\\\\n// end')\",\n \" afile.close()\",\n \"PYTHON_GCB_REGEX = \\\"\\\"\\\"\\nimport re\\ndef gcb_regex(base, modifiers):\\n flags = 0\\n if 'i' in modifiers:\\n flags |= re.IGNORECASE\\n if 'm' in modifiers:\\n flags |= re.MULTILINE\",\n \"def export_to_python(filename, lines, date):\\n \\\"\\\"\\\"Creates Python export function from given lines and writes a file.\\\"\\\"\\\"\\n code = []\\n code.append('class Array(dict):')\\n code.append(' pass')\\n code.append('')\\n code.append('true = True')\\n code.append('false = False')\",\n \" \\\"\\\"\\\"Creates Python export function from given lines and writes a file.\\\"\\\"\\\"\",\n \" code = []\",\n \" code.append('class Array(dict):')\",\n \" code.append(' pass')\",\n \" code.append('')\",\n \" code.append('true = True')\",\n \" code.append('false = False')\",\n \" code.append(PYTHON_GCB_REGEX)\",\n \" code.append('def gcb_import():')\",\n \" for line in lines:\\n code.append(' %s' % line)\",\n \" code.append(' %s' % line)\",\n \" code.append('')\",\n \" code.append(' course = Array();')\",\n \" code.append(' course[\\\"units\\\"] = units;')\",\n \" code.append(' course[\\\"assessments\\\"] = assessments;')\",\n \" code.append(' return course;')\",\n \" afile = open('%s.py' % filename, 'w')\",\n \" afile.write('# Course Builder %s Python Export on %s\\\\n' % (\\n RELEASE_TAG, date))\",\n \" afile.write('# begin\\\\n')\",\n \" afile.write('\\\\n'.join(code))\",\n \" afile.write('\\\\n# end')\",\n \" afile.close()\",\n \"def export_to_php(filename, lines, date):\\n \\\"\\\"\\\"Creates PHP export function from given lines and writes a file.\\\"\\\"\\\"\\n code = []\\n code.append('function gcb_import(){')\\n for line in lines:\\n if line:\\n code.append(' $%s' % line)\\n else:\",\n \" \\\"\\\"\\\"Creates PHP export function from given lines and writes a file.\\\"\\\"\\\"\",\n \" code = []\",\n \" code.append('function gcb_import(){')\",\n \" for line in lines:\\n if line:\\n code.append(' $%s' % line)\\n else:\\n code.append('')\",\n \" if line:\\n code.append(' $%s' % line)\\n else:\\n code.append('')\",\n \" code.append(' $%s' % line)\",\n \" code.append('')\",\n \" code.append('')\",\n \" code.append(' $course = Array();')\",\n \" code.append(' $course[\\\"units\\\"] = $units;')\",\n \" code.append(' $course[\\\"assessments\\\"] = $assessments;')\",\n \" code.append(' return $course;')\",\n \" code.append('}')\",\n \" afile = open('%s.php' % filename, 'w')\",\n \" afile.write('<?php\\\\n')\",\n \" afile.write('// Course Builder %s PHP Export on %s\\\\n' %\\n (RELEASE_TAG, date))\",\n \" afile.write('// begin\\\\n')\",\n \" afile.write('\\\\n'.join(code))\",\n \" afile.write('\\\\n// end')\",\n \" afile.write('?>')\",\n \" afile.close()\",\n \"def export_to_file(filename, lines):\\n date = datetime.utcnow()\\n export_to_javascript(filename, lines, date)\\n export_to_python(filename, lines, date)\\n export_to_php(filename, lines, date)\",\n \" date = datetime.utcnow()\",\n \" export_to_javascript(filename, lines, date)\",\n \" export_to_python(filename, lines, date)\",\n \" export_to_php(filename, lines, date)\",\n \"if __name__ == '__main__':\\n print('Export started using %s' % os.path.realpath(__file__))\\n\\n verifier = verify.Verifier()\\n errors = verifier.load_and_verify_model(echo)\\n if errors:\\n raise Exception('Please fix all errors reported by tools/verify.py '\\n 'before continuing!')\",\n \" print('Export started using %s' % os.path.realpath(__file__))\",\n \" verifier = verify.Verifier()\",\n \" errors = verifier.load_and_verify_model(echo)\",\n \" if errors:\\n raise Exception('Please fix all errors reported by tools/verify.py '\\n 'before continuing!')\",\n \" fname = os.path.join(os.getcwd(), 'coursebuilder_course')\",\n \" export_to_file(fname, verifier.export)\",\n \" print('Export complete to %s' % fname)\"\n]","isConversational":false}}},{"rowIdx":4797,"cells":{"code":{"kind":"string","value":"# Copyright 2012 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Classes and methods to manage all aspects of student assessments.\"\"\"\n\n__author__ = 'pgbovine@google.com (Philip Guo)'\n\nimport datetime\nimport logging\n\nfrom utils import BaseHandler\nfrom utils import HUMAN_READABLE_DATETIME_FORMAT\n\nfrom controllers import lessons\nfrom models import courses\nfrom models import models\nfrom models import review\nfrom models import student_work\nfrom models import transforms\nfrom models import utils\nfrom models.models import Student\nfrom models.models import StudentAnswersEntity\nfrom tools import verify\n\nfrom google.appengine.ext import db\n\n\ndef store_score(course, student, assessment_type, score):\n \"\"\"Stores a student's score on a particular assessment.\n\n Args:\n course: the course containing the assessment.\n student: the student whose data is stored.\n assessment_type: the type of the assessment.\n score: the student's score on this assessment.\n\n Returns:\n the result of the assessment, if appropriate.\n \"\"\"\n # FIXME: Course creators can edit this code to implement custom\n # assessment scoring and storage behavior\n # TODO(pgbovine): Note that the latest version of answers are always saved,\n # but scores are only saved if they're higher than the previous attempt.\n # This can lead to unexpected analytics behavior. Resolve this.\n existing_score = course.get_score(student, assessment_type)\n # remember to cast to int for comparison\n if (existing_score is None) or (score > int(existing_score)):\n utils.set_score(student, assessment_type, score)\n\n\nclass AnswerHandler(BaseHandler):\n \"\"\"Handler for saving assessment answers.\"\"\"\n\n # Find student entity and save answers\n @db.transactional(xg=True)\n def update_assessment_transaction(\n self, email, assessment_type, new_answers, score):\n \"\"\"Stores answer and updates user scores.\n\n Args:\n email: the student's email address.\n assessment_type: the title of the assessment.\n new_answers: the latest set of answers supplied by the student.\n score: the numerical assessment score.\n\n Returns:\n the student instance.\n \"\"\"\n student = Student.get_enrolled_student_by_email(email)\n course = self.get_course()\n\n # It may be that old Student entities don't have user_id set; fix it.\n if not student.user_id:\n student.user_id = self.get_user().user_id()\n\n answers = StudentAnswersEntity.get_by_key_name(student.user_id)\n if not answers:\n answers = StudentAnswersEntity(key_name=student.user_id)\n answers.updated_on = datetime.datetime.now()\n\n utils.set_answer(answers, assessment_type, new_answers)\n\n store_score(course, student, assessment_type, score)\n\n student.put()\n answers.put()\n\n # Also record the event, which is useful for tracking multiple\n # submissions and history.\n models.EventEntity.record(\n 'submit-assessment', self.get_user(), transforms.dumps({\n 'type': 'assessment-%s' % assessment_type,\n 'values': new_answers, 'location': 'AnswerHandler'}))\n\n return student\n\n def get(self):\n \"\"\"Handles GET requests.\n\n This method is here because if a student logs out when on the\n reviewed_assessment_confirmation page, that student is redirected to\n the GET method of the corresponding handler. It might be a good idea to\n merge this class with lessons.AssessmentHandler, which currently only\n has a GET handler.\n \"\"\"\n self.redirect('/course')\n\n # pylint: disable=too-many-statements\n def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'assessment-post'):\n return\n\n course = self.get_course()\n assessment_type = self.request.get('assessment_type')\n if not assessment_type:\n self.error(404)\n logging.error('No assessment type supplied.')\n return\n\n unit = course.find_unit_by_id(assessment_type)\n if unit is None or unit.type != verify.UNIT_TYPE_ASSESSMENT:\n self.error(404)\n logging.error('No assessment named %s exists.', assessment_type)\n return\n\n self.template_value['navbar'] = {'course': True}\n self.template_value['assessment'] = assessment_type\n self.template_value['assessment_name'] = unit.title\n self.template_value['is_last_assessment'] = (\n course.is_last_assessment(unit))\n self.template_value['unit_id'] = unit.unit_id\n\n # Convert answers from JSON to dict.\n answers = self.request.get('answers')\n answers = transforms.loads(answers) if answers else []\n\n grader = unit.workflow.get_grader()\n\n # Scores are not recorded for human-reviewed assignments.\n score = 0\n if grader == courses.AUTO_GRADER:\n score = int(round(float(self.request.get('score'))))\n\n # Record assessment transaction.\n student = self.update_assessment_transaction(\n student.key().name(), assessment_type, answers, score)\n\n if grader == courses.HUMAN_GRADER:\n rp = course.get_reviews_processor()\n\n # Guard against duplicate submissions of a human-graded assessment.\n previously_submitted = rp.does_submission_exist(\n unit.unit_id, student.get_key())\n\n if not previously_submitted:\n # Check that the submission due date has not passed.\n time_now = datetime.datetime.now()\n submission_due_date = unit.workflow.get_submission_due_date()\n if time_now > submission_due_date:\n self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n self.template_value['submission_due_date'] = (\n submission_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT))\n self.template_value['error_code'] = (\n 'assignment_deadline_exceeded')\n self.render('error.html')\n return\n\n submission_key = student_work.Submission.write(\n unit.unit_id, student.get_key(), answers)\n rp.start_review_process_for(\n unit.unit_id, submission_key, student.get_key())\n # Record completion event in progress tracker.\n course.get_progress_tracker().put_assessment_completed(\n student, assessment_type)\n\n self.template_value['previously_submitted'] = previously_submitted\n\n matcher = unit.workflow.get_matcher()\n self.template_value['matcher'] = matcher\n if matcher == review.PEER_MATCHER:\n self.template_value['review_dashboard_url'] = (\n 'reviewdashboard?unit=%s' % unit.unit_id\n )\n\n self.render('reviewed_assessment_confirmation.html')\n return\n else:\n # Record completion event in progress tracker.\n course.get_progress_tracker().put_assessment_completed(\n student, assessment_type)\n\n # Save the submission in the datastore, overwriting the earlier\n # version if it exists.\n submission_key = student_work.Submission.write(\n unit.unit_id, student.get_key(), answers)\n course.update_final_grades(student)\n\n parent_unit = course.get_parent_unit(unit.unit_id)\n if parent_unit:\n unit_contents = lessons.UnitHandler.UnitLeftNavElements(\n course, parent_unit)\n next_url = unit_contents.get_url_by(\n 'assessment', unit.unit_id, 0) + '&confirmation'\n self.redirect('/' + next_url)\n else:\n self.template_value['result'] = course.get_overall_result(\n student)\n self.template_value['score'] = score\n self.template_value['overall_score'] = course.get_overall_score(\n student)\n self.render('test_confirmation.html')\n"},"vector":{"kind":"list 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= 'pgbovine@google.com (Philip Guo)'","import datetime","import logging","from utils import BaseHandler","from utils import HUMAN_READABLE_DATETIME_FORMAT","from controllers import lessons","from models import courses","from models import models","from models import review","from models import student_work","from models import transforms","from models import utils","from models.models import Student","from models.models import StudentAnswersEntity","from tools import verify","from google.appengine.ext import db","def store_score(course, student, assessment_type, score):\n \"\"\"Stores a student's score on a particular assessment.\n\n Args:\n course: the course containing the assessment.\n student: the student whose data is stored.\n assessment_type: the type of the assessment.\n score: the student's score on this assessment."," \"\"\"Stores a student's score on a particular assessment.\n\n Args:\n course: the course containing the assessment.\n student: the student whose data is stored.\n assessment_type: the type of the assessment.\n score: the student's score on this assessment."," existing_score = course.get_score(student, assessment_type)"," if (existing_score is None) or (score > int(existing_score)):\n utils.set_score(student, assessment_type, score)"," utils.set_score(student, assessment_type, score)","class AnswerHandler(BaseHandler):\n \"\"\"Handler for saving assessment answers.\"\"\"\n\n # Find student entity and save answers\n @db.transactional(xg=True)\n def update_assessment_transaction(\n self, email, assessment_type, new_answers, score):\n \"\"\"Stores answer and updates user scores."," \"\"\"Handler for saving assessment answers.\"\"\""," def update_assessment_transaction(\n self, email, assessment_type, new_answers, score):\n \"\"\"Stores answer and updates user scores.\n\n Args:\n email: the student's email address.\n assessment_type: the title of the assessment.\n new_answers: the latest set of answers supplied by the student."," \"\"\"Stores answer and updates user scores.\n\n Args:\n email: the student's email address.\n assessment_type: the title of the assessment.\n new_answers: the latest set of answers supplied by the student.\n score: the numerical assessment score."," student = Student.get_enrolled_student_by_email(email)"," course = self.get_course()"," if not student.user_id:\n student.user_id = self.get_user().user_id()"," student.user_id = self.get_user().user_id()"," answers = StudentAnswersEntity.get_by_key_name(student.user_id)"," if not answers:\n answers = StudentAnswersEntity(key_name=student.user_id)"," answers = StudentAnswersEntity(key_name=student.user_id)"," answers.updated_on = datetime.datetime.now()"," utils.set_answer(answers, assessment_type, new_answers)"," store_score(course, student, assessment_type, score)"," student.put()"," answers.put()"," models.EventEntity.record(\n 'submit-assessment', self.get_user(), transforms.dumps({\n 'type': 'assessment-%s' % assessment_type,\n 'values': new_answers, 'location': 'AnswerHandler'}))"," return student"," def get(self):\n \"\"\"Handles GET requests.\n\n This method is here because if a student logs out when on the\n reviewed_assessment_confirmation page, that student is redirected to\n the GET method of the corresponding handler. It might be a good idea to\n merge this class with lessons.AssessmentHandler, which currently only\n has a GET handler."," \"\"\"Handles GET requests.\n\n This method is here because if a student logs out when on the\n reviewed_assessment_confirmation page, that student is redirected to\n the GET method of the corresponding handler. It might be a good idea to\n merge this class with lessons.AssessmentHandler, which currently only\n has a GET handler.\n \"\"\""," self.redirect('/course')"," def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'assessment-post'):\n return"," \"\"\"Handles POST requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," if not self.assert_xsrf_token_or_fail(self.request, 'assessment-post'):\n return"," return"," course = self.get_course()"," assessment_type = self.request.get('assessment_type')"," if not assessment_type:\n self.error(404)\n logging.error('No assessment type supplied.')\n return"," self.error(404)"," logging.error('No assessment type supplied.')"," return"," unit = course.find_unit_by_id(assessment_type)"," if unit is None or unit.type != verify.UNIT_TYPE_ASSESSMENT:\n self.error(404)\n logging.error('No assessment named %s exists.', assessment_type)\n return"," self.error(404)"," logging.error('No assessment named %s exists.', assessment_type)"," return"," self.template_value['navbar'] = {'course': True}"," self.template_value['assessment'] = assessment_type"," self.template_value['assessment_name'] = unit.title"," self.template_value['is_last_assessment'] = (\n course.is_last_assessment(unit))"," self.template_value['unit_id'] = unit.unit_id"," answers = self.request.get('answers')"," answers = transforms.loads(answers) if answers else []"," grader = unit.workflow.get_grader()"," score = 0"," if grader == courses.AUTO_GRADER:\n score = int(round(float(self.request.get('score'))))"," score = int(round(float(self.request.get('score'))))"," student = self.update_assessment_transaction(\n student.key().name(), assessment_type, answers, score)"," if grader == courses.HUMAN_GRADER:\n rp = course.get_reviews_processor()\n\n # Guard against duplicate submissions of a human-graded assessment.\n previously_submitted = rp.does_submission_exist(\n unit.unit_id, student.get_key())\n\n if not previously_submitted:"," rp = course.get_reviews_processor()"," previously_submitted = rp.does_submission_exist(\n unit.unit_id, student.get_key())"," if not previously_submitted:\n # Check that the submission due date has not passed.\n time_now = datetime.datetime.now()\n submission_due_date = unit.workflow.get_submission_due_date()\n if time_now > submission_due_date:\n self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n self.template_value['submission_due_date'] = ("," time_now = datetime.datetime.now()"," submission_due_date = unit.workflow.get_submission_due_date()"," if time_now > submission_due_date:\n self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n self.template_value['submission_due_date'] = (\n submission_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT))\n self.template_value['error_code'] = (\n 'assignment_deadline_exceeded')"," self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)"," self.template_value['submission_due_date'] = (\n submission_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT))"," self.template_value['error_code'] = (\n 'assignment_deadline_exceeded')"," self.render('error.html')"," return"," submission_key = student_work.Submission.write(\n unit.unit_id, student.get_key(), answers)"," rp.start_review_process_for(\n unit.unit_id, submission_key, student.get_key())"," course.get_progress_tracker().put_assessment_completed(\n student, assessment_type)"," self.template_value['previously_submitted'] = previously_submitted"," matcher = unit.workflow.get_matcher()"," self.template_value['matcher'] = matcher"," if matcher == review.PEER_MATCHER:\n self.template_value['review_dashboard_url'] = (\n 'reviewdashboard?unit=%s' % unit.unit_id\n )"," self.template_value['review_dashboard_url'] = (\n 'reviewdashboard?unit=%s' % unit.unit_id\n )"," self.render('reviewed_assessment_confirmation.html')"," return"," course.get_progress_tracker().put_assessment_completed(\n student, assessment_type)"," submission_key = student_work.Submission.write(\n unit.unit_id, student.get_key(), answers)"," course.update_final_grades(student)"," parent_unit = course.get_parent_unit(unit.unit_id)"," if parent_unit:\n unit_contents = lessons.UnitHandler.UnitLeftNavElements(\n course, parent_unit)\n next_url = unit_contents.get_url_by(\n 'assessment', unit.unit_id, 0) + '&confirmation'\n self.redirect('/' + next_url)\n else:\n self.template_value['result'] = course.get_overall_result("," unit_contents = lessons.UnitHandler.UnitLeftNavElements(\n course, parent_unit)"," next_url = unit_contents.get_url_by(\n 'assessment', unit.unit_id, 0) + '&confirmation'"," self.redirect('/' + next_url)"," self.template_value['result'] = course.get_overall_result(\n student)"," self.template_value['score'] = score"," self.template_value['overall_score'] = course.get_overall_score(\n student)"," self.render('test_confirmation.html')"],"string":"[\n \"\\\"\\\"\\\"Classes and methods to manage all aspects of student assessments.\\\"\\\"\\\"\",\n \"__author__ = 'pgbovine@google.com (Philip Guo)'\",\n \"import datetime\",\n \"import logging\",\n \"from utils import BaseHandler\",\n \"from utils import HUMAN_READABLE_DATETIME_FORMAT\",\n \"from controllers import lessons\",\n \"from models import courses\",\n \"from models import models\",\n \"from models import review\",\n \"from models import student_work\",\n \"from models import transforms\",\n \"from models import utils\",\n \"from models.models import Student\",\n \"from models.models import StudentAnswersEntity\",\n \"from tools import verify\",\n \"from google.appengine.ext import db\",\n \"def store_score(course, student, assessment_type, score):\\n \\\"\\\"\\\"Stores a student's score on a particular assessment.\\n\\n Args:\\n course: the course containing the assessment.\\n student: the student whose data is stored.\\n assessment_type: the type of the assessment.\\n score: the student's score on this assessment.\",\n \" \\\"\\\"\\\"Stores a student's score on a particular assessment.\\n\\n Args:\\n course: the course containing the assessment.\\n student: the student whose data is stored.\\n assessment_type: the type of the assessment.\\n score: the student's score on this assessment.\",\n \" existing_score = course.get_score(student, assessment_type)\",\n \" if (existing_score is None) or (score > int(existing_score)):\\n utils.set_score(student, assessment_type, score)\",\n \" utils.set_score(student, assessment_type, score)\",\n \"class AnswerHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for saving assessment answers.\\\"\\\"\\\"\\n\\n # Find student entity and save answers\\n @db.transactional(xg=True)\\n def update_assessment_transaction(\\n self, email, assessment_type, new_answers, score):\\n \\\"\\\"\\\"Stores answer and updates user scores.\",\n \" \\\"\\\"\\\"Handler for saving assessment answers.\\\"\\\"\\\"\",\n \" def update_assessment_transaction(\\n self, email, assessment_type, new_answers, score):\\n \\\"\\\"\\\"Stores answer and updates user scores.\\n\\n Args:\\n email: the student's email address.\\n assessment_type: the title of the assessment.\\n new_answers: the latest set of answers supplied by the student.\",\n \" \\\"\\\"\\\"Stores answer and updates user scores.\\n\\n Args:\\n email: the student's email address.\\n assessment_type: the title of the assessment.\\n new_answers: the latest set of answers supplied by the student.\\n score: the numerical assessment score.\",\n \" student = Student.get_enrolled_student_by_email(email)\",\n \" course = self.get_course()\",\n \" if not student.user_id:\\n student.user_id = self.get_user().user_id()\",\n \" student.user_id = self.get_user().user_id()\",\n \" answers = StudentAnswersEntity.get_by_key_name(student.user_id)\",\n \" if not answers:\\n answers = StudentAnswersEntity(key_name=student.user_id)\",\n \" answers = StudentAnswersEntity(key_name=student.user_id)\",\n \" answers.updated_on = datetime.datetime.now()\",\n \" utils.set_answer(answers, assessment_type, new_answers)\",\n \" store_score(course, student, assessment_type, score)\",\n \" student.put()\",\n \" answers.put()\",\n \" models.EventEntity.record(\\n 'submit-assessment', self.get_user(), transforms.dumps({\\n 'type': 'assessment-%s' % assessment_type,\\n 'values': new_answers, 'location': 'AnswerHandler'}))\",\n \" return student\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\n\\n This method is here because if a student logs out when on the\\n reviewed_assessment_confirmation page, that student is redirected to\\n the GET method of the corresponding handler. It might be a good idea to\\n merge this class with lessons.AssessmentHandler, which currently only\\n has a GET handler.\",\n \" \\\"\\\"\\\"Handles GET requests.\\n\\n This method is here because if a student logs out when on the\\n reviewed_assessment_confirmation page, that student is redirected to\\n the GET method of the corresponding handler. It might be a good idea to\\n merge this class with lessons.AssessmentHandler, which currently only\\n has a GET handler.\\n \\\"\\\"\\\"\",\n \" self.redirect('/course')\",\n \" def post(self):\\n \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n if not self.assert_xsrf_token_or_fail(self.request, 'assessment-post'):\\n return\",\n \" \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(self.request, 'assessment-post'):\\n return\",\n \" return\",\n \" course = self.get_course()\",\n \" assessment_type = self.request.get('assessment_type')\",\n \" if not assessment_type:\\n self.error(404)\\n logging.error('No assessment type supplied.')\\n return\",\n \" self.error(404)\",\n \" logging.error('No assessment type supplied.')\",\n \" return\",\n \" unit = course.find_unit_by_id(assessment_type)\",\n \" if unit is None or unit.type != verify.UNIT_TYPE_ASSESSMENT:\\n self.error(404)\\n logging.error('No assessment named %s exists.', assessment_type)\\n return\",\n \" self.error(404)\",\n \" logging.error('No assessment named %s exists.', assessment_type)\",\n \" return\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" self.template_value['assessment'] = assessment_type\",\n \" self.template_value['assessment_name'] = unit.title\",\n \" self.template_value['is_last_assessment'] = (\\n course.is_last_assessment(unit))\",\n \" self.template_value['unit_id'] = unit.unit_id\",\n \" answers = self.request.get('answers')\",\n \" answers = transforms.loads(answers) if answers else []\",\n \" grader = unit.workflow.get_grader()\",\n \" score = 0\",\n \" if grader == courses.AUTO_GRADER:\\n score = int(round(float(self.request.get('score'))))\",\n \" score = int(round(float(self.request.get('score'))))\",\n \" student = self.update_assessment_transaction(\\n student.key().name(), assessment_type, answers, score)\",\n \" if grader == courses.HUMAN_GRADER:\\n rp = course.get_reviews_processor()\\n\\n # Guard against duplicate submissions of a human-graded assessment.\\n previously_submitted = rp.does_submission_exist(\\n unit.unit_id, student.get_key())\\n\\n if not previously_submitted:\",\n \" rp = course.get_reviews_processor()\",\n \" previously_submitted = rp.does_submission_exist(\\n unit.unit_id, student.get_key())\",\n \" if not previously_submitted:\\n # Check that the submission due date has not passed.\\n time_now = datetime.datetime.now()\\n submission_due_date = unit.workflow.get_submission_due_date()\\n if time_now > submission_due_date:\\n self.template_value['time_now'] = time_now.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\\n self.template_value['submission_due_date'] = (\",\n \" time_now = datetime.datetime.now()\",\n \" submission_due_date = unit.workflow.get_submission_due_date()\",\n \" if time_now > submission_due_date:\\n self.template_value['time_now'] = time_now.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\\n self.template_value['submission_due_date'] = (\\n submission_due_date.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT))\\n self.template_value['error_code'] = (\\n 'assignment_deadline_exceeded')\",\n \" self.template_value['time_now'] = time_now.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\",\n \" self.template_value['submission_due_date'] = (\\n submission_due_date.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT))\",\n \" self.template_value['error_code'] = (\\n 'assignment_deadline_exceeded')\",\n \" self.render('error.html')\",\n \" return\",\n \" submission_key = student_work.Submission.write(\\n unit.unit_id, student.get_key(), answers)\",\n \" rp.start_review_process_for(\\n unit.unit_id, submission_key, student.get_key())\",\n \" course.get_progress_tracker().put_assessment_completed(\\n student, assessment_type)\",\n \" self.template_value['previously_submitted'] = previously_submitted\",\n \" matcher = unit.workflow.get_matcher()\",\n \" self.template_value['matcher'] = matcher\",\n \" if matcher == review.PEER_MATCHER:\\n self.template_value['review_dashboard_url'] = (\\n 'reviewdashboard?unit=%s' % unit.unit_id\\n )\",\n \" self.template_value['review_dashboard_url'] = (\\n 'reviewdashboard?unit=%s' % unit.unit_id\\n )\",\n \" self.render('reviewed_assessment_confirmation.html')\",\n \" return\",\n \" course.get_progress_tracker().put_assessment_completed(\\n student, assessment_type)\",\n \" submission_key = student_work.Submission.write(\\n unit.unit_id, student.get_key(), answers)\",\n \" course.update_final_grades(student)\",\n \" parent_unit = course.get_parent_unit(unit.unit_id)\",\n \" if parent_unit:\\n unit_contents = lessons.UnitHandler.UnitLeftNavElements(\\n course, parent_unit)\\n next_url = unit_contents.get_url_by(\\n 'assessment', unit.unit_id, 0) + '&confirmation'\\n self.redirect('/' + next_url)\\n else:\\n self.template_value['result'] = course.get_overall_result(\",\n \" unit_contents = lessons.UnitHandler.UnitLeftNavElements(\\n course, parent_unit)\",\n \" next_url = unit_contents.get_url_by(\\n 'assessment', unit.unit_id, 0) + '&confirmation'\",\n \" self.redirect('/' + next_url)\",\n \" self.template_value['result'] = course.get_overall_result(\\n student)\",\n \" self.template_value['score'] = score\",\n \" self.template_value['overall_score'] = course.get_overall_score(\\n student)\",\n \" self.render('test_confirmation.html')\"\n]","isConversational":false}}},{"rowIdx":4798,"cells":{"code":{"kind":"string","value":"# Copyright 2013 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Handlers for generating various frontend pages.\"\"\"\n\n__author__ = 'Saifu Angto (saifu@google.com)'\n\nimport copy\nimport datetime\nimport urllib\nimport urlparse\n\nfrom utils import BaseHandler\nfrom utils import BaseRESTHandler\nfrom utils import CAN_PERSIST_ACTIVITY_EVENTS\nfrom utils import CAN_PERSIST_PAGE_EVENTS\nfrom utils import CAN_PERSIST_TAG_EVENTS\nfrom utils import HUMAN_READABLE_DATETIME_FORMAT\nfrom utils import TRANSIENT_STUDENT\nfrom utils import XsrfTokenManager\n\nfrom common import jinja_utils\nfrom common import safe_dom\nfrom models import courses\nfrom models import models\nfrom models import student_work\nfrom models import transforms\nfrom models.counters import PerfCounter\nfrom models.models import Student\nfrom models.models import StudentProfileDAO\nfrom models.review import ReviewUtils\nfrom models.student_work import StudentWorkUtils\nfrom modules import courses as courses_module\nfrom modules.review import domain\nfrom tools import verify\n\nfrom google.appengine.ext import db\n\nCOURSE_EVENTS_RECEIVED = PerfCounter(\n 'gcb-course-events-received',\n 'A number of activity/assessment events received by the server.')\n\nCOURSE_EVENTS_RECORDED = PerfCounter(\n 'gcb-course-events-recorded',\n 'A number of activity/assessment events recorded in a datastore.')\n\nUNIT_PAGE_TYPE = 'unit'\nACTIVITY_PAGE_TYPE = 'activity'\nASSESSMENT_PAGE_TYPE = 'assessment'\nASSESSMENT_CONFIRMATION_PAGE_TYPE = 'test_confirmation'\n\nTAGS_THAT_TRIGGER_BLOCK_COMPLETION = ['attempt-activity']\nTAGS_THAT_TRIGGER_COMPONENT_COMPLETION = ['tag-assessment']\nTAGS_THAT_TRIGGER_HTML_COMPLETION = ['attempt-lesson']\n\n\ndef get_first_lesson(handler, unit_id):\n \"\"\"Returns the first lesson in the unit.\"\"\"\n lessons = handler.get_course().get_lessons(unit_id)\n return lessons[0] if lessons else None\n\n\ndef _get_selected_unit_or_first_unit(handler):\n # Finds unit requested or a first unit in the course.\n u = handler.request.get('unit')\n unit = handler.get_course().find_unit_by_id(u)\n if not unit:\n units = handler.get_course().get_units()\n for current_unit in units:\n if verify.UNIT_TYPE_UNIT == current_unit.type:\n unit = current_unit\n break\n return unit\n\n\ndef _get_selected_or_first_lesson(handler, unit):\n # Find lesson requested or a first lesson in the unit.\n l = handler.request.get('lesson')\n lesson = None\n if not l:\n lesson = get_first_lesson(handler, unit.unit_id)\n else:\n lesson = handler.get_course().find_lesson_by_id(unit, l)\n return lesson\n\n\ndef extract_unit_and_lesson(handler):\n \"\"\"Loads unit and lesson specified in the request.\"\"\"\n\n unit = _get_selected_unit_or_first_unit(handler)\n if not unit:\n return None, None\n return unit, _get_selected_or_first_lesson(handler, unit)\n\n\ndef extract_unit_and_lesson_or_assessment(handler):\n unit = _get_selected_unit_or_first_unit(handler)\n if not unit:\n return None, None, None\n\n lesson = None\n lesson_id = handler.request.get('lesson')\n if lesson_id:\n lesson = handler.get_course().find_lesson_by_id(unit, lesson_id)\n\n assessment = None\n assessment_id = handler.request.get('assessment')\n if assessment_id:\n assessment = handler.get_course().find_unit_by_id(assessment_id)\n\n if lesson or assessment:\n return unit, lesson, assessment\n\n if unit.pre_assessment:\n return unit, None, handler.get_course().find_unit_by_id(\n unit.pre_assessment)\n\n first_lesson = get_first_lesson(handler, unit.unit_id)\n if first_lesson:\n return unit, first_lesson, None\n\n if unit.post_assessment:\n return unit, None, handler.get_course().find_unit_by_id(\n unit.post_assessment)\n\n return unit, None, None\n\n\ndef get_unit_and_lesson_id_from_url(handler, url):\n \"\"\"Extracts unit and lesson ids from a URL.\"\"\"\n url_components = urlparse.urlparse(url)\n query_dict = urlparse.parse_qs(url_components.query)\n\n if 'unit' not in query_dict:\n return None, None\n\n unit_id = query_dict['unit'][0]\n\n lesson_id = None\n if 'lesson' in query_dict:\n lesson_id = query_dict['lesson'][0]\n else:\n lesson_id = get_first_lesson(handler, unit_id).lesson_id\n\n return unit_id, lesson_id\n\n\ndef create_readonly_assessment_params(content, answers):\n \"\"\"Creates parameters for a readonly assessment in the view templates.\"\"\"\n assessment_params = {\n 'preamble': content['assessment']['preamble'],\n 'questionsList': content['assessment']['questionsList'],\n 'answers': answers,\n }\n return assessment_params\n\n\ndef filter_assessments_used_within_units(units):\n # Remove assessments that are to be treated as if they were in a unit.\n referenced_assessments = set()\n for unit in units:\n if unit.type == verify.UNIT_TYPE_UNIT:\n if unit.pre_assessment:\n referenced_assessments.add(unit.pre_assessment)\n if unit.post_assessment:\n referenced_assessments.add(unit.post_assessment)\n ret = []\n for unit in list(units):\n if unit.unit_id not in referenced_assessments:\n ret.append(unit)\n return ret\n\n\ndef augment_assessment_units(course, student):\n \"\"\"Adds additional fields to assessment units.\"\"\"\n rp = course.get_reviews_processor()\n\n for unit in course.get_units():\n if unit.type == 'A':\n if unit.needs_human_grader():\n review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n review_min_count = unit.workflow.get_review_min_count()\n\n unit.matcher = unit.workflow.get_matcher()\n unit.review_progress = ReviewUtils.get_review_progress(\n review_steps, review_min_count,\n course.get_progress_tracker()\n )\n\n unit.is_submitted = rp.does_submission_exist(\n unit.unit_id, student.get_key())\n\n\ndef is_progress_recorded(handler, student):\n if student.is_transient:\n return False\n if CAN_PERSIST_ACTIVITY_EVENTS:\n return True\n course = handler.get_course()\n units = handler.get_track_matching_student(student)\n for unit in units:\n if unit.manual_progress:\n return True\n for lesson in course.get_lessons(unit.unit_id):\n if lesson.manual_progress:\n return True\n return False\n\n\ndef add_course_outline_to_template(handler, student):\n \"\"\"Adds course outline with all units, lessons, progress to the template.\"\"\"\n _tracker = handler.get_progress_tracker()\n if student and not student.is_transient:\n augment_assessment_units(handler.get_course(), student)\n handler.template_value['course_progress'] = (\n _tracker.get_course_progress(student))\n\n _tuples = []\n units = handler.get_track_matching_student(student)\n units = filter_assessments_used_within_units(units)\n progress = _tracker.get_or_create_progress(\n student) if is_progress_recorded(handler, student) else None\n for _unit in units:\n _lessons = handler.get_lessons(_unit.unit_id)\n _lesson_progress = None\n if progress:\n _lesson_progress = _tracker.get_lesson_progress(\n student, _unit.unit_id, progress=progress)\n pre_assessment = None\n if _unit.pre_assessment:\n pre_assessment = handler.find_unit_by_id(_unit.pre_assessment)\n post_assessment = None\n if _unit.post_assessment:\n post_assessment = handler.find_unit_by_id(_unit.post_assessment)\n\n _tuple = (_unit, _lessons, _lesson_progress,\n pre_assessment, post_assessment)\n _tuples.append(_tuple)\n\n handler.template_value['course_outline'] = _tuples\n handler.template_value['unit_progress'] = _tracker.get_unit_progress(\n student, progress=progress)\n\n\nclass CourseHandler(BaseHandler):\n \"\"\"Handler for generating course page.\"\"\"\n\n @classmethod\n def get_child_routes(cls):\n \"\"\"Add child handlers for REST.\"\"\"\n return [('/rest/events', EventsRESTHandler)]\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n models.MemcacheManager.begin_readonly()\n try:\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())\n self.template_value['has_global_profile'] = profile is not None\n if not student:\n student = TRANSIENT_STUDENT\n\n if (student.is_transient and\n not self.app_context.get_environ()['course']['browsable']):\n self.redirect('/preview')\n return\n\n # If we are on this page due to visiting the course base URL\n # (and not base url plus \"/course\"), redirect registered students\n # to the last page they were looking at.\n last_location = self.get_redirect_location(student)\n if last_location:\n self.redirect(last_location)\n return\n\n tracker = self.get_progress_tracker()\n units = self.get_track_matching_student(student)\n units = filter_assessments_used_within_units(units)\n self.template_value['units'] = units\n self.template_value['show_registration_page'] = True\n\n if student and not student.is_transient:\n augment_assessment_units(self.get_course(), student)\n self.template_value['course_progress'] = (\n tracker.get_course_progress(student))\n elif user:\n profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())\n additional_registration_fields = self.app_context.get_environ(\n )['reg_form']['additional_registration_fields']\n if profile is not None and not additional_registration_fields:\n self.template_value['show_registration_page'] = False\n self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))\n\n self.template_value['transient_student'] = student.is_transient\n self.template_value['progress'] = tracker.get_unit_progress(student)\n course = self.app_context.get_environ()['course']\n self.template_value['video_exists'] = bool(\n 'main_video' in course and\n 'url' in course['main_video'] and\n course['main_video']['url'])\n self.template_value['image_exists'] = bool(\n 'main_image' in course and\n 'url' in course['main_image'] and\n course['main_image']['url'])\n\n self.template_value['is_progress_recorded'] = is_progress_recorded(\n self, student)\n self.template_value['navbar'] = {'course': True}\n finally:\n models.MemcacheManager.end_readonly()\n self.render('course.html')\n\n\nclass UnitHandler(BaseHandler):\n \"\"\"Handler for generating unit page.\"\"\"\n\n # A list of callback functions which modules can use to add extra content\n # panels at the bottom of the page. Each function receives the app_context\n # as its single arg, and should return a string or None.\n EXTRA_CONTENT = []\n\n # The lesson title provider should be a function which receives the\n # app_context, the unit, and the lesson, and returns a jinja2.Markup or a\n # safe_dom object. If it returns None, the default title is used instead.\n _LESSON_TITLE_PROVIDER = None\n\n class UnitLeftNavElements(object):\n\n def __init__(self, course, unit):\n self._urls = []\n self._index_by_label = {}\n\n if unit.pre_assessment:\n self._index_by_label['assessment.%d' % unit.pre_assessment] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&assessment=%d' % (\n unit.unit_id, unit.pre_assessment))\n\n for lesson in course.get_lessons(unit.unit_id):\n self._index_by_label['lesson.%s' % lesson.lesson_id] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&lesson=%s' % (\n unit.unit_id, lesson.lesson_id))\n\n if lesson.activity and lesson.activity_listed:\n self._index_by_label['activity.%s' % lesson.lesson_id] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&lesson=%s&activity=true' % (\n unit.unit_id, lesson.lesson_id))\n\n if unit.post_assessment:\n self._index_by_label['assessment.%d' % unit.post_assessment] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&assessment=%d' % (\n unit.unit_id, unit.post_assessment))\n\n def get_url_by(self, item_type, item_id, offset):\n index = self._index_by_label['%s.%s' % (item_type, item_id)]\n index += offset\n if index >= 0 and index < len(self._urls):\n return self._urls[index]\n else:\n return None\n\n @classmethod\n def set_lesson_title_provider(cls, lesson_title_provider):\n if cls._LESSON_TITLE_PROVIDER:\n raise Exception('Lesson title provider already set by a module')\n cls._LESSON_TITLE_PROVIDER = lesson_title_provider\n\n def _default_lesson_title_provider(\n self, app_context, unit, lesson, unused_student):\n title_h1 = safe_dom.Element(\n 'h1', className='gcb-lesson-title').add_text(lesson.title)\n can_see_drafts = courses_module.courses.can_see_drafts(self.app_context)\n if not lesson.now_available and can_see_drafts:\n title_h1.add_text(' ').add_child(\n safe_dom.Element('span', id='lesson-title-private').add_text(\n '(Private)'))\n return safe_dom.Element('div', className='lesson-title').add_child(\n title_h1)\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n models.MemcacheManager.begin_readonly()\n try:\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return\n\n # Extract incoming args\n unit, lesson, assessment = extract_unit_and_lesson_or_assessment(\n self)\n unit_id = unit.unit_id\n\n # If the unit is not currently available, and the user does not have\n # the permission to see drafts, redirect to the main page.\n available_units = self.get_track_matching_student(student)\n if ((not unit.now_available or unit not in available_units) and\n not courses_module.courses.can_see_drafts(self.app_context)):\n self.redirect('/')\n return\n\n # Set template values for nav bar and page type.\n self.template_value['navbar'] = {'course': True}\n\n # Set template values for a unit and its lesson entities\n self.template_value['unit'] = unit\n self.template_value['unit_id'] = unit.unit_id\n\n # These attributes are needed in order to render questions (with\n # progress indicators) in the lesson body. They are used by the\n # custom component renderers in the assessment_tags module.\n self.student = student\n self.unit_id = unit_id\n\n add_course_outline_to_template(self, student)\n self.template_value['is_progress_recorded'] = is_progress_recorded(\n self, student)\n\n if (unit.show_contents_on_one_page and\n 'confirmation' not in self.request.params):\n self._show_all_contents(student, unit)\n else:\n self._show_single_element(student, unit, lesson, assessment)\n\n for extra_content_hook in self.EXTRA_CONTENT:\n extra_content = extra_content_hook(self.app_context)\n if extra_content is not None:\n self.template_value['display_content'].append(extra_content)\n\n self._set_gcb_html_element_class()\n finally:\n models.MemcacheManager.end_readonly()\n self.render('unit.html')\n\n def _set_gcb_html_element_class(self):\n \"\"\"Select conditional CSS to hide parts of the unit page.\"\"\"\n\n # TODO(jorr): Add an integration test for this once, LTI producer and\n # consumer code is completely checked in.\n\n gcb_html_element_class = []\n\n if self.request.get('hide-controls') == 'true':\n gcb_html_element_class.append('hide-controls')\n\n if self.request.get('hide-lesson-title') == 'true':\n gcb_html_element_class.append('hide-lesson-title')\n\n self.template_value['gcb_html_element_class'] = (\n ' '.join(gcb_html_element_class))\n\n def _apply_gcb_tags(self, text):\n return jinja_utils.get_gcb_tags_filter(self)(text)\n\n def _show_all_contents(self, student, unit):\n course = self.get_course()\n display_content = []\n left_nav_elements = UnitHandler.UnitLeftNavElements(\n self.get_course(), unit)\n\n if unit.unit_header:\n display_content.append(self._apply_gcb_tags(unit.unit_header))\n\n if unit.pre_assessment:\n display_content.append(self.get_assessment_display_content(\n student, unit, course.find_unit_by_id(unit.pre_assessment),\n left_nav_elements, {}))\n\n for lesson in course.get_lessons(unit.unit_id):\n self.lesson_id = lesson.lesson_id\n self.lesson_is_scored = lesson.scored\n template_values = copy.copy(self.template_value)\n self.set_lesson_content(student, unit, lesson, left_nav_elements,\n template_values)\n display_content.append(self.render_template_to_html(\n template_values, 'lesson_common.html'))\n del self.lesson_id\n del self.lesson_is_scored\n\n if unit.post_assessment:\n display_content.append(self.get_assessment_display_content(\n student, unit, course.find_unit_by_id(unit.post_assessment),\n left_nav_elements, {}))\n\n if unit.unit_footer:\n display_content.append(self._apply_gcb_tags(unit.unit_footer))\n\n self.template_value['display_content'] = display_content\n\n def _showing_first_element(self, unit, lesson, assessment, is_activity):\n \"\"\"Whether the unit page is showing the first element of a Unit.\"\"\"\n\n # If the unit has a pre-assessment, then that's the first element;\n # we are showing the first element iff we are showing that assessment.\n if unit.pre_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))\n\n # If there is no pre-assessment, there may be lessons. If there\n # are any lessons, then the first element is the first unit component.\n # Iff we are showing that lesson, we're on the first component.\n unit_lessons = self.get_course().get_lessons(unit.unit_id)\n if unit_lessons:\n if lesson and lesson.lesson_id == unit_lessons[0].lesson_id:\n # If the first lesson has an activity, then we are showing\n # the first element if we are showing the lesson, and not\n # the activity.\n return not is_activity\n return False\n\n # If there is no pre-assessment and no lessons, then the post-assessment\n # is the first element. We are on the first element if we're showing\n # that assessment.\n if unit.post_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))\n\n # If unit has no pre-assessment, no lessons, and no post-assessment,\n # then we're both at the first and last item.\n if (not unit.pre_assessment and\n not unit.post_assessment and\n not unit_lessons):\n\n return True\n\n return False\n\n def _showing_last_element(self, unit, lesson, assessment, is_activity):\n \"\"\"Whether the unit page is showing the last element of a Unit.\"\"\"\n\n # If the unit has a post-assessment, then that's the last element;\n # we are showing the last element iff we are showing that assessment.\n if unit.post_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))\n\n # If there is no post-assessment, there may be lessons. If there\n # are any lessons, then the last element is the last unit component.\n # Iff we are showing that lesson, we're on the last component.\n unit_lessons = self.get_course().get_lessons(unit.unit_id)\n if unit_lessons:\n if lesson and lesson.lesson_id == unit_lessons[-1].lesson_id:\n # If the lesson has an activity, and we're showing the\n # activity, that's last.\n return is_activity == lesson.has_activity\n return False\n\n # If there is no post-assessment and there are no lessons, then\n # the pre-assessment is the last item in the unit. We are on the\n # last element if we're showing that assessment.\n if unit.pre_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))\n\n # If unit has no pre-assessment, no lessons, and no post-assessment,\n # then we're both at the first and last item.\n if (not unit.pre_assessment and\n not unit.post_assessment and\n not unit_lessons):\n\n return True\n\n return False\n\n def _show_single_element(self, student, unit, lesson, assessment):\n # Add markup to page which depends on the kind of content.\n left_nav_elements = UnitHandler.UnitLeftNavElements(\n self.get_course(), unit)\n\n # need 'activity' to be True or False, and not the string 'true' or None\n is_activity = (self.request.get('activity') != '' or\n '/activity' in self.request.path)\n display_content = []\n if (unit.unit_header and\n self._showing_first_element(unit, lesson, assessment, is_activity)):\n\n display_content.append(self._apply_gcb_tags(unit.unit_header))\n if assessment:\n if 'confirmation' in self.request.params:\n self.set_confirmation_content(student, unit, assessment,\n left_nav_elements)\n self.template_value['assessment_name'] = (\n self.template_value.get('assessment_name').lower())\n display_content.append(self.render_template_to_html(\n self.template_value, 'test_confirmation_content.html'))\n else:\n display_content.append(self.get_assessment_display_content(\n student, unit, assessment, left_nav_elements,\n self.template_value))\n elif lesson:\n self.lesson_id = lesson.lesson_id\n self.lesson_is_scored = lesson.scored\n if is_activity:\n self.set_activity_content(student, unit, lesson,\n left_nav_elements)\n else:\n self.set_lesson_content(student, unit, lesson,\n left_nav_elements, self.template_value)\n display_content.append(self.render_template_to_html(\n self.template_value, 'lesson_common.html'))\n if (unit.unit_footer and\n self._showing_last_element(unit, lesson, assessment, is_activity)):\n\n display_content.append(self._apply_gcb_tags(unit.unit_footer))\n self.template_value['display_content'] = display_content\n\n def get_assessment_display_content(self, student, unit, assessment,\n left_nav_elements, template_values):\n template_values['page_type'] = ASSESSMENT_PAGE_TYPE\n template_values['assessment'] = assessment\n template_values['back_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, -1)\n template_values['next_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 1)\n\n assessment_handler = AssessmentHandler()\n assessment_handler.app_context = self.app_context\n assessment_handler.request = self.request\n return assessment_handler.get_assessment_content(\n student, self.get_course(), assessment, as_lesson=True)\n\n def set_confirmation_content(self, student, unit, assessment,\n left_nav_elements):\n course = self.get_course()\n self.template_value['page_type'] = ASSESSMENT_CONFIRMATION_PAGE_TYPE\n self.template_value['unit'] = unit\n self.template_value['assessment'] = assessment\n self.template_value['is_confirmation'] = True\n self.template_value['assessment_name'] = assessment.title\n self.template_value['score'] = (\n course.get_score(student, str(assessment.unit_id)))\n self.template_value['is_last_assessment'] = (\n course.is_last_assessment(assessment))\n self.template_value['overall_score'] = (\n course.get_overall_score(student))\n self.template_value['result'] = course.get_overall_result(student)\n self.template_value['back_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 0)\n self.template_value['next_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 1)\n\n def set_activity_content(self, student, unit, lesson, left_nav_elements):\n self.template_value['page_type'] = ACTIVITY_PAGE_TYPE\n self.template_value['lesson'] = lesson\n self.template_value['lesson_id'] = lesson.lesson_id\n self.template_value['back_button_url'] = left_nav_elements.get_url_by(\n 'activity', lesson.lesson_id, -1)\n self.template_value['next_button_url'] = left_nav_elements.get_url_by(\n 'activity', lesson.lesson_id, 1)\n self.template_value['activity'] = {\n 'title': lesson.activity_title,\n 'activity_script_src': (\n self.get_course().get_activity_filename(unit.unit_id,\n lesson.lesson_id))}\n self.template_value['page_type'] = 'activity'\n self.template_value['title'] = lesson.activity_title\n\n if is_progress_recorded(self, student):\n # Mark this page as accessed. This is done after setting the\n # student progress template value, so that the mark only shows up\n # after the student visits the page for the first time.\n self.get_course().get_progress_tracker().put_activity_accessed(\n student, unit.unit_id, lesson.lesson_id)\n\n def _get_lesson_title(self, unit, lesson, student):\n title = None\n if self._LESSON_TITLE_PROVIDER:\n title = self._LESSON_TITLE_PROVIDER(\n self.app_context, unit, lesson, student)\n if title is None:\n title = self._default_lesson_title_provider(\n self.app_context, unit, lesson, student)\n return title\n\n def set_lesson_content(self, student, unit, lesson, left_nav_elements,\n template_values):\n template_values['page_type'] = UNIT_PAGE_TYPE\n template_values['lesson'] = lesson\n template_values['lesson_id'] = lesson.lesson_id\n template_values['back_button_url'] = left_nav_elements.get_url_by(\n 'lesson', lesson.lesson_id, -1)\n template_values['next_button_url'] = left_nav_elements.get_url_by(\n 'lesson', lesson.lesson_id, 1)\n template_values['page_type'] = 'unit'\n template_values['title'] = self._get_lesson_title(unit, lesson, student)\n\n if not lesson.manual_progress and is_progress_recorded(self, student):\n # Mark this page as accessed. This is done after setting the\n # student progress template value, so that the mark only shows up\n # after the student visits the page for the first time.\n self.get_course().get_progress_tracker().put_html_accessed(\n student, unit.unit_id, lesson.lesson_id)\n\n\nclass AssessmentHandler(BaseHandler):\n \"\"\"Handler for generating assessment page.\"\"\"\n\n # pylint: disable=too-many-statements\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return\n\n # Extract incoming args, binding to self if needed.\n assessment_name = self.request.get('name')\n self.unit_id = assessment_name\n course = self.get_course()\n unit = course.find_unit_by_id(self.unit_id)\n if not unit:\n self.error(404)\n return\n\n # If assessment is used as a pre/post within a unit, go see that view.\n parent_unit = course.get_parent_unit(self.unit_id)\n if parent_unit:\n self.redirect('/unit?unit=%s&assessment=%s' %\n (parent_unit.unit_id, self.unit_id))\n return\n\n # If the assessment is not currently available, and the user does not\n # have the permission to see drafts redirect to the main page.\n if (not unit.now_available and\n not courses_module.courses.can_see_drafts(self.app_context)):\n self.redirect('/')\n return\n\n self.template_value['main_content'] = (\n self.get_assessment_content(student, course, unit, as_lesson=False))\n self.template_value['assessment_name'] = assessment_name\n self.template_value['unit_id'] = self.unit_id\n self.template_value['navbar'] = {'course': True}\n self.render('assessment_page.html')\n\n def get_assessment_content(self, student, course, unit, as_lesson):\n model_version = course.get_assessment_model_version(unit)\n assert model_version in courses.SUPPORTED_ASSESSMENT_MODEL_VERSIONS\n self.template_value['model_version'] = model_version\n\n if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\n configure_readonly_view = self.configure_readonly_view_1_4\n configure_active_view = self.configure_active_view_1_4\n get_review_received = self.get_review_received_1_4\n elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\n configure_readonly_view = self.configure_readonly_view_1_5\n configure_active_view = self.configure_active_view_1_5\n get_review_received = self.get_review_received_1_5\n else:\n raise ValueError('Bad assessment model version: %s' % model_version)\n\n self.template_value['unit_id'] = unit.unit_id\n self.template_value['as_lesson'] = as_lesson\n self.template_value['assessment_title'] = unit.title\n self.template_value['assessment_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('assessment-post'))\n self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))\n\n self.template_value['grader'] = unit.workflow.get_grader()\n\n readonly_view = False\n due_date_exceeded = False\n submission_contents = None\n review_steps_for = []\n\n submission_due_date = unit.workflow.get_submission_due_date()\n if submission_due_date:\n self.template_value['submission_due_date'] = (\n submission_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\n\n time_now = datetime.datetime.now()\n if time_now > submission_due_date:\n readonly_view = True\n due_date_exceeded = True\n self.template_value['due_date_exceeded'] = True\n\n if course.needs_human_grader(unit) and not student.is_transient:\n self.template_value['matcher'] = unit.workflow.get_matcher()\n\n rp = course.get_reviews_processor()\n review_steps_by = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n\n # Determine if the student can see others' reviews of his/her work.\n if (ReviewUtils.has_completed_enough_reviews(\n review_steps_by, unit.workflow.get_review_min_count())):\n submission_and_review_steps = (\n rp.get_submission_and_review_steps(\n unit.unit_id, student.get_key()))\n\n if submission_and_review_steps:\n submission_contents = submission_and_review_steps[0]\n review_steps_for = submission_and_review_steps[1]\n\n review_keys_for_student = []\n for review_step in review_steps_for:\n can_show_review = (\n review_step.state == domain.REVIEW_STATE_COMPLETED\n and not review_step.removed\n and review_step.review_key\n )\n\n if can_show_review:\n review_keys_for_student.append(review_step.review_key)\n\n reviews_for_student = rp.get_reviews_by_keys(\n unit.unit_id, review_keys_for_student)\n\n self.template_value['reviews_received'] = [get_review_received(\n unit, review) for review in reviews_for_student]\n else:\n submission_contents = student_work.Submission.get_contents(\n unit.unit_id, student.get_key())\n\n # Determine whether to show the assessment in readonly mode.\n if submission_contents or due_date_exceeded:\n readonly_view = True\n configure_readonly_view(unit, submission_contents)\n\n if not readonly_view:\n if not student.is_transient:\n submission_contents = student_work.Submission.get_contents(\n unit.unit_id, student.get_key())\n configure_active_view(unit, submission_contents)\n\n return self.render_template_to_html(\n self.template_value, 'assessment.html')\n\n def configure_readonly_view_1_4(self, unit, submission_contents):\n self.template_value['readonly_student_assessment'] = (\n create_readonly_assessment_params(\n self.get_course().get_assessment_content(unit),\n StudentWorkUtils.get_answer_list(submission_contents)))\n\n def configure_readonly_view_1_5(self, unit, submission_contents):\n self.template_value['readonly_student_assessment'] = True\n self.template_value['html_content'] = unit.html_content\n self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)\n\n def configure_active_view_1_4(self, unit, submission_contents):\n self.template_value['assessment_script_src'] = (\n self.get_course().get_assessment_filename(unit.unit_id))\n if submission_contents:\n # If a previous submission exists, reinstate it.\n self.template_value['saved_answers'] = transforms.dumps(\n StudentWorkUtils.get_answer_list(submission_contents))\n\n def configure_active_view_1_5(self, unit, submission_contents):\n self.template_value['html_content'] = unit.html_content\n self.template_value['html_check_answers'] = unit.html_check_answers\n if submission_contents:\n # If a previous submission exists, reinstate it.\n self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)\n\n def get_review_received_1_4(self, unit, review):\n return create_readonly_assessment_params(\n self.get_course().get_review_content(unit),\n StudentWorkUtils.get_answer_list(review))\n\n def get_review_received_1_5(self, unit, review):\n return {\n 'content': unit.html_review_form,\n 'saved_answers': transforms.dumps(review)\n }\n\n\nclass ReviewDashboardHandler(BaseHandler):\n \"\"\"Handler for generating the index of reviews that a student has to do.\"\"\"\n\n def _populate_template(self, course, unit, review_steps):\n \"\"\"Adds variables to the template for the review dashboard.\"\"\"\n self.template_value['assessment_name'] = unit.title\n self.template_value['unit_id'] = unit.unit_id\n\n parent_unit = course.get_parent_unit(unit.unit_id)\n\n if parent_unit is not None:\n self.template_value['back_link'] = 'unit?unit=%s&assessment=%s' % (\n parent_unit.unit_id, unit.unit_id)\n else:\n self.template_value['back_link'] = (\n 'assessment?name=%s' % unit.unit_id)\n\n self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))\n self.template_value['review_dashboard_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('review-dashboard-post'))\n\n self.template_value['REVIEW_STATE_COMPLETED'] = (\n domain.REVIEW_STATE_COMPLETED)\n\n self.template_value['review_steps'] = review_steps\n self.template_value['review_min_count'] = (\n unit.workflow.get_review_min_count())\n\n review_due_date = unit.workflow.get_review_due_date()\n if review_due_date:\n self.template_value['review_due_date'] = review_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n\n time_now = datetime.datetime.now()\n self.template_value['due_date_exceeded'] = (time_now > review_due_date)\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n course = self.get_course()\n rp = course.get_reviews_processor()\n unit, _ = extract_unit_and_lesson(self)\n if not unit:\n self.error(404)\n return\n\n self.template_value['navbar'] = {'course': True}\n\n if not course.needs_human_grader(unit):\n self.error(404)\n return\n\n # Check that the student has submitted the corresponding assignment.\n if not rp.does_submission_exist(unit.unit_id, student.get_key()):\n self.template_value['error_code'] = (\n 'cannot_review_before_submitting_assignment')\n self.render('error.html')\n return\n\n review_steps = rp.get_review_steps_by(unit.unit_id, student.get_key())\n\n self._populate_template(course, unit, review_steps)\n required_review_count = unit.workflow.get_review_min_count()\n\n # The student can request a new submission if:\n # - all his/her current reviews are in Draft/Completed state, and\n # - he/she is not in the state where the required number of reviews\n # has already been requested, but not all of these are completed.\n self.template_value['can_request_new_review'] = (\n len(review_steps) < required_review_count or\n ReviewUtils.has_completed_all_assigned_reviews(review_steps)\n )\n self.render('review_dashboard.html')\n\n def post(self):\n \"\"\"Allows a reviewer to request a new review.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(\n self.request, 'review-dashboard-post'):\n return\n\n course = self.get_course()\n unit, unused_lesson = extract_unit_and_lesson(self)\n if not unit:\n self.error(404)\n return\n\n rp = course.get_reviews_processor()\n review_steps = rp.get_review_steps_by(unit.unit_id, student.get_key())\n self.template_value['navbar'] = {'course': True}\n\n if not course.needs_human_grader(unit):\n self.error(404)\n return\n\n # Check that the student has submitted the corresponding assignment.\n if not rp.does_submission_exist(unit.unit_id, student.get_key()):\n self.template_value['error_code'] = (\n 'cannot_review_before_submitting_assignment')\n self.render('error.html')\n return\n\n # Check that the review due date has not passed.\n time_now = datetime.datetime.now()\n review_due_date = unit.workflow.get_review_due_date()\n if time_now > review_due_date:\n self.template_value['error_code'] = (\n 'cannot_request_review_after_deadline')\n self.render('error.html')\n return\n\n # Check that the student can request a new review.\n review_min_count = unit.workflow.get_review_min_count()\n can_request_new_review = (\n len(review_steps) < review_min_count or\n ReviewUtils.has_completed_all_assigned_reviews(review_steps))\n if not can_request_new_review:\n self.template_value['review_min_count'] = review_min_count\n self.template_value['error_code'] = 'must_complete_more_reviews'\n self.render('error.html')\n return\n\n self.template_value['no_submissions_available'] = True\n\n try:\n review_step_key = rp.get_new_review(unit.unit_id, student.get_key())\n redirect_params = {\n 'key': review_step_key,\n 'unit': unit.unit_id,\n }\n self.redirect('/review?%s' % urllib.urlencode(redirect_params))\n except Exception: # pylint: disable=broad-except\n review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n self._populate_template(course, unit, review_steps)\n self.render('review_dashboard.html')\n\n\nclass ReviewHandler(BaseHandler):\n \"\"\"Handler for generating the submission page for individual reviews.\"\"\"\n\n # pylint: disable=too-many-statements\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n course = self.get_course()\n rp = course.get_reviews_processor()\n unit, unused_lesson = extract_unit_and_lesson(self)\n\n if not course.needs_human_grader(unit):\n self.error(404)\n return\n\n review_step_key = self.request.get('key')\n if not unit or not review_step_key:\n self.error(404)\n return\n\n try:\n review_step_key = db.Key(encoded=review_step_key)\n review_step = rp.get_review_steps_by_keys(\n unit.unit_id, [review_step_key])[0]\n except Exception: # pylint: disable=broad-except\n self.error(404)\n return\n\n if not review_step:\n self.error(404)\n return\n\n # Check that the student is allowed to review this submission.\n if not student.has_same_key_as(review_step.reviewer_key):\n self.error(404)\n return\n\n model_version = course.get_assessment_model_version(unit)\n assert model_version in courses.SUPPORTED_ASSESSMENT_MODEL_VERSIONS\n self.template_value['model_version'] = model_version\n\n if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\n configure_assessment_view = self.configure_assessment_view_1_4\n configure_readonly_review = self.configure_readonly_review_1_4\n configure_active_review = self.configure_active_review_1_4\n elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\n configure_assessment_view = self.configure_assessment_view_1_5\n configure_readonly_review = self.configure_readonly_review_1_5\n configure_active_review = self.configure_active_review_1_5\n else:\n raise ValueError('Bad assessment model version: %s' % model_version)\n\n self.template_value['navbar'] = {'course': True}\n self.template_value['unit_id'] = unit.unit_id\n self.template_value['key'] = review_step_key\n\n submission_key = review_step.submission_key\n submission_contents = student_work.Submission.get_contents_by_key(\n submission_key)\n\n configure_assessment_view(unit, submission_contents)\n\n review_due_date = unit.workflow.get_review_due_date()\n if review_due_date:\n self.template_value['review_due_date'] = review_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n\n review_key = review_step.review_key\n rev = rp.get_reviews_by_keys(\n unit.unit_id, [review_key])[0] if review_key else None\n\n time_now = datetime.datetime.now()\n show_readonly_review = (\n review_step.state == domain.REVIEW_STATE_COMPLETED or\n time_now > review_due_date)\n\n self.template_value['due_date_exceeded'] = (time_now > review_due_date)\n\n if show_readonly_review:\n configure_readonly_review(unit, rev)\n else:\n # Populate the review form,\n configure_active_review(unit, rev)\n\n self.template_value['assessment_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('review-post'))\n self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))\n\n self.render('review.html')\n\n def configure_assessment_view_1_4(self, unit, submission_contents):\n readonly_student_assessment = create_readonly_assessment_params(\n self.get_course().get_assessment_content(unit),\n StudentWorkUtils.get_answer_list(submission_contents))\n self.template_value[\n 'readonly_student_assessment'] = readonly_student_assessment\n\n def configure_assessment_view_1_5(self, unit, submission_contents):\n self.template_value['html_review_content'] = unit.html_content\n self.template_value['html_reviewee_answers'] = transforms.dumps(\n submission_contents)\n\n def configure_readonly_review_1_4(self, unit, review_contents):\n readonly_review_form = create_readonly_assessment_params(\n self.get_course().get_review_content(unit),\n StudentWorkUtils.get_answer_list(review_contents))\n self.template_value['readonly_review_form'] = readonly_review_form\n\n def configure_readonly_review_1_5(self, unit, review_contents):\n self.template_value['readonly_review_form'] = True\n self.template_value['html_review_form'] = unit.html_review_form\n self.template_value['html_review_answers'] = transforms.dumps(\n review_contents)\n\n def configure_active_review_1_4(self, unit, review_contents):\n self.template_value['assessment_script_src'] = (\n self.get_course().get_review_filename(unit.unit_id))\n saved_answers = (\n StudentWorkUtils.get_answer_list(review_contents)\n if review_contents else [])\n self.template_value['saved_answers'] = transforms.dumps(saved_answers)\n\n def configure_active_review_1_5(self, unit, review_contents):\n self.template_value['html_review_form'] = unit.html_review_form\n self.template_value['html_review_answers'] = transforms.dumps(\n review_contents)\n\n def post(self):\n \"\"\"Handles POST requests, when a reviewer submits a review.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'review-post'):\n return\n\n course = self.get_course()\n rp = course.get_reviews_processor()\n\n unit_id = self.request.get('unit_id')\n unit = self.find_unit_by_id(unit_id)\n if not unit or not course.needs_human_grader(unit):\n self.error(404)\n return\n\n review_step_key = self.request.get('key')\n if not review_step_key:\n self.error(404)\n return\n\n try:\n review_step_key = db.Key(encoded=review_step_key)\n review_step = rp.get_review_steps_by_keys(\n unit.unit_id, [review_step_key])[0]\n except Exception: # pylint: disable=broad-except\n self.error(404)\n return\n\n # Check that the student is allowed to review this submission.\n if not student.has_same_key_as(review_step.reviewer_key):\n self.error(404)\n return\n\n self.template_value['navbar'] = {'course': True}\n self.template_value['unit_id'] = unit.unit_id\n\n # Check that the review due date has not passed.\n time_now = datetime.datetime.now()\n review_due_date = unit.workflow.get_review_due_date()\n if time_now > review_due_date:\n self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n self.template_value['review_due_date'] = (\n review_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\n self.template_value['error_code'] = 'review_deadline_exceeded'\n self.render('error.html')\n return\n\n mark_completed = (self.request.get('is_draft') == 'false')\n self.template_value['is_draft'] = (not mark_completed)\n\n review_payload = self.request.get('answers')\n review_payload = transforms.loads(\n review_payload) if review_payload else []\n try:\n rp.write_review(\n unit.unit_id, review_step_key, review_payload, mark_completed)\n course.update_final_grades(student)\n except domain.TransitionError:\n self.template_value['error_code'] = 'review_already_submitted'\n self.render('error.html')\n return\n\n self.render('review_confirmation.html')\n\n\nclass EventsRESTHandler(BaseRESTHandler):\n \"\"\"Provides REST API for an Event.\"\"\"\n\n def get(self):\n \"\"\"Returns a 404 error; this handler should not be GET-accessible.\"\"\"\n self.error(404)\n return\n\n def _add_request_facts(self, payload_json):\n payload_dict = transforms.loads(payload_json)\n if 'loc' not in payload_dict:\n payload_dict['loc'] = {}\n loc = payload_dict['loc']\n loc['locale'] = self.get_locale_for(self.request, self.app_context)\n loc['language'] = self.request.headers.get('Accept-Language')\n loc['country'] = self.request.headers.get('X-AppEngine-Country')\n loc['region'] = self.request.headers.get('X-AppEngine-Region')\n loc['city'] = self.request.headers.get('X-AppEngine-City')\n lat_long = self.request.headers.get('X-AppEngine-CityLatLong')\n if lat_long:\n latitude, longitude = lat_long.split(',')\n loc['lat'] = float(latitude)\n loc['long'] = float(longitude)\n user_agent = self.request.headers.get('User-Agent')\n if user_agent:\n payload_dict['user_agent'] = user_agent\n payload_json = transforms.dumps(payload_dict).lstrip(\n models.transforms.JSON_XSSI_PREFIX)\n return payload_json\n\n def post(self):\n \"\"\"Receives event and puts it into datastore.\"\"\"\n\n COURSE_EVENTS_RECEIVED.inc()\n can = (\n CAN_PERSIST_ACTIVITY_EVENTS.value or\n CAN_PERSIST_PAGE_EVENTS.value or\n CAN_PERSIST_TAG_EVENTS.value)\n if not can:\n return\n\n request = transforms.loads(self.request.get('request'))\n if not self.assert_xsrf_token_or_fail(request, 'event-post', {}):\n return\n\n user = self.get_user()\n if not user:\n return\n\n source = request.get('source')\n payload_json = request.get('payload')\n payload_json = self._add_request_facts(payload_json)\n models.EventEntity.record(source, user, payload_json)\n COURSE_EVENTS_RECORDED.inc()\n\n self.process_event(user, source, payload_json)\n\n def process_event(self, user, source, payload_json):\n \"\"\"Processes an event after it has been recorded in the event stream.\"\"\"\n\n student = models.Student.get_enrolled_student_by_email(user.email())\n if not student:\n return\n\n payload = transforms.loads(payload_json)\n\n if 'location' not in payload:\n return\n\n source_url = payload['location']\n\n if source in TAGS_THAT_TRIGGER_BLOCK_COMPLETION:\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)\n if unit_id is not None and lesson_id is not None:\n self.get_course().get_progress_tracker().put_block_completed(\n student, unit_id, lesson_id, payload['index'])\n elif source in TAGS_THAT_TRIGGER_COMPONENT_COMPLETION:\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)\n cpt_id = payload['instanceid']\n if (unit_id is not None and lesson_id is not None and\n cpt_id is not None):\n self.get_course().get_progress_tracker(\n ).put_component_completed(\n student, unit_id, lesson_id, cpt_id)\n elif source in TAGS_THAT_TRIGGER_HTML_COMPLETION:\n # Records progress for scored lessons.\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)\n course = self.get_course()\n unit = course.find_unit_by_id(unit_id)\n lesson = course.find_lesson_by_id(unit, lesson_id)\n if (unit_id is not None and\n lesson_id is not None and\n not lesson.manual_progress):\n self.get_course().get_progress_tracker().put_html_completed(\n student, unit_id, lesson_id)\n"},"vector":{"kind":"list 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0,\n 0,\n 3\n ]\n]","isConversational":false},"snippet":{"kind":"list like","value":["\"\"\"Handlers for generating various frontend pages.\"\"\"","__author__ = 'Saifu Angto (saifu@google.com)'","import copy","import datetime","import urllib","import urlparse","from utils import BaseHandler","from utils import BaseRESTHandler","from utils import CAN_PERSIST_ACTIVITY_EVENTS","from utils import CAN_PERSIST_PAGE_EVENTS","from utils import CAN_PERSIST_TAG_EVENTS","from utils import HUMAN_READABLE_DATETIME_FORMAT","from utils import TRANSIENT_STUDENT","from utils import XsrfTokenManager","from common import jinja_utils","from common import safe_dom","from models import courses","from models import models","from models import student_work","from models import transforms","from models.counters import PerfCounter","from models.models import Student","from models.models import StudentProfileDAO","from models.review import ReviewUtils","from models.student_work import StudentWorkUtils","from modules import courses as courses_module","from modules.review import domain","from tools import verify","from google.appengine.ext import db","COURSE_EVENTS_RECEIVED = PerfCounter(\n 'gcb-course-events-received',\n 'A number of activity/assessment events received by the server.')","COURSE_EVENTS_RECORDED = PerfCounter(\n 'gcb-course-events-recorded',\n 'A number of activity/assessment events recorded in a datastore.')","UNIT_PAGE_TYPE = 'unit'","ACTIVITY_PAGE_TYPE = 'activity'","ASSESSMENT_PAGE_TYPE = 'assessment'","ASSESSMENT_CONFIRMATION_PAGE_TYPE = 'test_confirmation'","TAGS_THAT_TRIGGER_BLOCK_COMPLETION = ['attempt-activity']","TAGS_THAT_TRIGGER_COMPONENT_COMPLETION = ['tag-assessment']","TAGS_THAT_TRIGGER_HTML_COMPLETION = ['attempt-lesson']","def get_first_lesson(handler, unit_id):\n \"\"\"Returns the first lesson in the unit.\"\"\"\n lessons = handler.get_course().get_lessons(unit_id)\n return lessons[0] if lessons else None"," \"\"\"Returns the first lesson in the unit.\"\"\""," lessons = handler.get_course().get_lessons(unit_id)"," return lessons[0] if lessons else None","def _get_selected_unit_or_first_unit(handler):\n # Finds unit requested or a first unit in the course.\n u = handler.request.get('unit')\n unit = handler.get_course().find_unit_by_id(u)\n if not unit:\n units = handler.get_course().get_units()\n for current_unit in units:\n if verify.UNIT_TYPE_UNIT == current_unit.type:"," u = handler.request.get('unit')"," unit = handler.get_course().find_unit_by_id(u)"," if not unit:\n units = handler.get_course().get_units()\n for current_unit in units:\n if verify.UNIT_TYPE_UNIT == current_unit.type:\n unit = current_unit\n break"," units = handler.get_course().get_units()"," for current_unit in units:\n if verify.UNIT_TYPE_UNIT == current_unit.type:\n unit = current_unit\n break"," if verify.UNIT_TYPE_UNIT == current_unit.type:\n unit = current_unit\n break"," unit = current_unit"," return unit","def _get_selected_or_first_lesson(handler, unit):\n # Find lesson requested or a first lesson in the unit.\n l = handler.request.get('lesson')\n lesson = None\n if not l:\n lesson = get_first_lesson(handler, unit.unit_id)\n else:\n lesson = handler.get_course().find_lesson_by_id(unit, l)"," l = handler.request.get('lesson')"," lesson = None"," if not l:\n lesson = get_first_lesson(handler, unit.unit_id)\n else:\n lesson = handler.get_course().find_lesson_by_id(unit, l)"," lesson = get_first_lesson(handler, unit.unit_id)"," lesson = handler.get_course().find_lesson_by_id(unit, l)"," return lesson","def extract_unit_and_lesson(handler):\n \"\"\"Loads unit and lesson specified in the request.\"\"\"\n\n unit = _get_selected_unit_or_first_unit(handler)\n if not unit:\n return None, None\n return unit, _get_selected_or_first_lesson(handler, unit)"," \"\"\"Loads unit and lesson specified in the request.\"\"\""," unit = _get_selected_unit_or_first_unit(handler)"," if not unit:\n return None, None"," return None, None"," return unit, _get_selected_or_first_lesson(handler, unit)","def extract_unit_and_lesson_or_assessment(handler):\n unit = _get_selected_unit_or_first_unit(handler)\n if not unit:\n return None, None, None\n\n lesson = None\n lesson_id = handler.request.get('lesson')\n if lesson_id:"," unit = _get_selected_unit_or_first_unit(handler)"," if not unit:\n return None, None, None"," return None, None, None"," lesson = None"," lesson_id = handler.request.get('lesson')"," if lesson_id:\n lesson = handler.get_course().find_lesson_by_id(unit, lesson_id)"," lesson = handler.get_course().find_lesson_by_id(unit, lesson_id)"," assessment = None"," assessment_id = handler.request.get('assessment')"," if assessment_id:\n assessment = handler.get_course().find_unit_by_id(assessment_id)"," assessment = handler.get_course().find_unit_by_id(assessment_id)"," if lesson or assessment:\n return unit, lesson, assessment"," return unit, lesson, assessment"," if unit.pre_assessment:\n return unit, None, handler.get_course().find_unit_by_id(\n unit.pre_assessment)"," return unit, None, handler.get_course().find_unit_by_id(\n unit.pre_assessment)"," first_lesson = get_first_lesson(handler, unit.unit_id)"," if first_lesson:\n return unit, first_lesson, None"," return unit, first_lesson, None"," if unit.post_assessment:\n return unit, None, handler.get_course().find_unit_by_id(\n unit.post_assessment)"," return unit, None, handler.get_course().find_unit_by_id(\n unit.post_assessment)"," return unit, None, None","def get_unit_and_lesson_id_from_url(handler, url):\n \"\"\"Extracts unit and lesson ids from a URL.\"\"\"\n url_components = urlparse.urlparse(url)\n query_dict = urlparse.parse_qs(url_components.query)\n\n if 'unit' not in query_dict:\n return None, None"," \"\"\"Extracts unit and lesson ids from a URL.\"\"\""," url_components = urlparse.urlparse(url)"," query_dict = urlparse.parse_qs(url_components.query)"," if 'unit' not in query_dict:\n return None, None"," return None, None"," unit_id = query_dict['unit'][0]"," lesson_id = None"," if 'lesson' in query_dict:\n lesson_id = query_dict['lesson'][0]\n else:\n lesson_id = get_first_lesson(handler, unit_id).lesson_id"," lesson_id = query_dict['lesson'][0]"," lesson_id = get_first_lesson(handler, unit_id).lesson_id"," return unit_id, lesson_id","def create_readonly_assessment_params(content, answers):\n \"\"\"Creates parameters for a readonly assessment in the view templates.\"\"\"\n assessment_params = {\n 'preamble': content['assessment']['preamble'],\n 'questionsList': content['assessment']['questionsList'],\n 'answers': answers,\n }\n return assessment_params"," \"\"\"Creates parameters for a readonly assessment in the view templates.\"\"\""," assessment_params = {\n 'preamble': content['assessment']['preamble'],\n 'questionsList': content['assessment']['questionsList'],\n 'answers': answers,\n }"," return assessment_params","def filter_assessments_used_within_units(units):\n # Remove assessments that are to be treated as if they were in a unit.\n referenced_assessments = set()\n for unit in units:\n if unit.type == verify.UNIT_TYPE_UNIT:\n if unit.pre_assessment:\n referenced_assessments.add(unit.pre_assessment)\n if unit.post_assessment:"," referenced_assessments = set()"," for unit in units:\n if unit.type == verify.UNIT_TYPE_UNIT:\n if unit.pre_assessment:\n referenced_assessments.add(unit.pre_assessment)\n if unit.post_assessment:\n referenced_assessments.add(unit.post_assessment)"," if unit.type == verify.UNIT_TYPE_UNIT:\n if unit.pre_assessment:\n referenced_assessments.add(unit.pre_assessment)\n if unit.post_assessment:\n referenced_assessments.add(unit.post_assessment)"," if unit.pre_assessment:\n referenced_assessments.add(unit.pre_assessment)"," referenced_assessments.add(unit.pre_assessment)"," if unit.post_assessment:\n referenced_assessments.add(unit.post_assessment)"," referenced_assessments.add(unit.post_assessment)"," ret = []"," for unit in list(units):\n if unit.unit_id not in referenced_assessments:\n ret.append(unit)"," if unit.unit_id not in referenced_assessments:\n ret.append(unit)"," ret.append(unit)"," return ret","def augment_assessment_units(course, student):\n \"\"\"Adds additional fields to assessment units.\"\"\"\n rp = course.get_reviews_processor()\n\n for unit in course.get_units():\n if unit.type == 'A':\n if unit.needs_human_grader():\n review_steps = rp.get_review_steps_by("," \"\"\"Adds additional fields to assessment units.\"\"\""," rp = course.get_reviews_processor()"," for unit in course.get_units():\n if unit.type == 'A':\n if unit.needs_human_grader():\n review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n review_min_count = unit.workflow.get_review_min_count()\n\n unit.matcher = unit.workflow.get_matcher()"," if unit.type == 'A':\n if unit.needs_human_grader():\n review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n review_min_count = unit.workflow.get_review_min_count()\n\n unit.matcher = unit.workflow.get_matcher()\n unit.review_progress = ReviewUtils.get_review_progress("," if unit.needs_human_grader():\n review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n review_min_count = unit.workflow.get_review_min_count()\n\n unit.matcher = unit.workflow.get_matcher()\n unit.review_progress = ReviewUtils.get_review_progress(\n review_steps, review_min_count,"," review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())"," review_min_count = unit.workflow.get_review_min_count()"," unit.matcher = unit.workflow.get_matcher()"," unit.review_progress = ReviewUtils.get_review_progress(\n review_steps, review_min_count,\n course.get_progress_tracker()\n )"," unit.is_submitted = rp.does_submission_exist(\n unit.unit_id, student.get_key())","def is_progress_recorded(handler, student):\n if student.is_transient:\n return False\n if CAN_PERSIST_ACTIVITY_EVENTS:\n return True\n course = handler.get_course()\n units = handler.get_track_matching_student(student)\n for unit in units:"," if student.is_transient:\n return False"," return False"," if CAN_PERSIST_ACTIVITY_EVENTS:\n return True"," return True"," course = handler.get_course()"," units = handler.get_track_matching_student(student)"," for unit in units:\n if unit.manual_progress:\n return True\n for lesson in course.get_lessons(unit.unit_id):\n if lesson.manual_progress:\n return True"," if unit.manual_progress:\n return True"," return True"," for lesson in course.get_lessons(unit.unit_id):\n if lesson.manual_progress:\n return True"," if lesson.manual_progress:\n return True"," return True"," return False","def add_course_outline_to_template(handler, student):\n \"\"\"Adds course outline with all units, lessons, progress to the template.\"\"\"\n _tracker = handler.get_progress_tracker()\n if student and not student.is_transient:\n augment_assessment_units(handler.get_course(), student)\n handler.template_value['course_progress'] = (\n _tracker.get_course_progress(student))"," \"\"\"Adds course outline with all units, lessons, progress to the template.\"\"\""," _tracker = handler.get_progress_tracker()"," if student and not student.is_transient:\n augment_assessment_units(handler.get_course(), student)\n handler.template_value['course_progress'] = (\n _tracker.get_course_progress(student))"," augment_assessment_units(handler.get_course(), student)"," handler.template_value['course_progress'] = (\n _tracker.get_course_progress(student))"," _tuples = []"," units = handler.get_track_matching_student(student)"," units = filter_assessments_used_within_units(units)"," progress = _tracker.get_or_create_progress(\n student) if is_progress_recorded(handler, student) else None"," for _unit in units:\n _lessons = handler.get_lessons(_unit.unit_id)\n _lesson_progress = None\n if progress:\n _lesson_progress = _tracker.get_lesson_progress(\n student, _unit.unit_id, progress=progress)\n pre_assessment = None\n if _unit.pre_assessment:"," _lessons = handler.get_lessons(_unit.unit_id)"," _lesson_progress = None"," if progress:\n _lesson_progress = _tracker.get_lesson_progress(\n student, _unit.unit_id, progress=progress)"," _lesson_progress = _tracker.get_lesson_progress(\n student, _unit.unit_id, progress=progress)"," pre_assessment = None"," if _unit.pre_assessment:\n pre_assessment = handler.find_unit_by_id(_unit.pre_assessment)"," pre_assessment = handler.find_unit_by_id(_unit.pre_assessment)"," post_assessment = None"," if _unit.post_assessment:\n post_assessment = handler.find_unit_by_id(_unit.post_assessment)"," post_assessment = handler.find_unit_by_id(_unit.post_assessment)"," _tuple = (_unit, _lessons, _lesson_progress,\n pre_assessment, post_assessment)"," _tuples.append(_tuple)"," handler.template_value['course_outline'] = _tuples"," handler.template_value['unit_progress'] = _tracker.get_unit_progress(\n student, progress=progress)","class CourseHandler(BaseHandler):\n \"\"\"Handler for generating course page.\"\"\"\n\n @classmethod\n def get_child_routes(cls):\n \"\"\"Add child handlers for REST.\"\"\"\n return [('/rest/events', EventsRESTHandler)]"," \"\"\"Handler for generating course page.\"\"\""," def get_child_routes(cls):\n \"\"\"Add child handlers for REST.\"\"\"\n return [('/rest/events', EventsRESTHandler)]"," \"\"\"Add child handlers for REST.\"\"\""," return [('/rest/events', EventsRESTHandler)]"," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n models.MemcacheManager.begin_readonly()\n try:\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:"," \"\"\"Handles GET requests.\"\"\""," models.MemcacheManager.begin_readonly()"," try:\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())"," user = self.personalize_page_and_get_user()"," if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())\n self.template_value['has_global_profile'] = profile is not None\n if not student:"," student = TRANSIENT_STUDENT"," student = Student.get_enrolled_student_by_email(user.email())"," profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())"," self.template_value['has_global_profile'] = profile is not None"," if not student:\n student = TRANSIENT_STUDENT"," student = TRANSIENT_STUDENT"," if (student.is_transient and\n not self.app_context.get_environ()['course']['browsable']):\n self.redirect('/preview')\n return"," self.redirect('/preview')"," return"," last_location = self.get_redirect_location(student)"," if last_location:\n self.redirect(last_location)\n return"," self.redirect(last_location)"," return"," tracker = self.get_progress_tracker()"," units = self.get_track_matching_student(student)"," units = filter_assessments_used_within_units(units)"," self.template_value['units'] = units"," self.template_value['show_registration_page'] = True"," if student and not student.is_transient:\n augment_assessment_units(self.get_course(), student)\n self.template_value['course_progress'] = (\n tracker.get_course_progress(student))\n elif user:\n profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())\n additional_registration_fields = self.app_context.get_environ("," augment_assessment_units(self.get_course(), student)"," self.template_value['course_progress'] = (\n tracker.get_course_progress(student))"," elif user:\n profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())\n additional_registration_fields = self.app_context.get_environ(\n )['reg_form']['additional_registration_fields']\n if profile is not None and not additional_registration_fields:\n self.template_value['show_registration_page'] = False\n self.template_value['register_xsrf_token'] = ("," profile = StudentProfileDAO.get_profile_by_user_id(\n user.user_id())"," additional_registration_fields = self.app_context.get_environ(\n )['reg_form']['additional_registration_fields']"," if profile is not None and not additional_registration_fields:\n self.template_value['show_registration_page'] = False\n self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))"," self.template_value['show_registration_page'] = False"," self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))"," self.template_value['transient_student'] = student.is_transient"," self.template_value['progress'] = tracker.get_unit_progress(student)"," course = self.app_context.get_environ()['course']"," self.template_value['video_exists'] = bool(\n 'main_video' in course and\n 'url' in course['main_video'] and\n course['main_video']['url'])"," self.template_value['image_exists'] = bool(\n 'main_image' in course and\n 'url' in course['main_image'] and\n course['main_image']['url'])"," self.template_value['is_progress_recorded'] = is_progress_recorded(\n self, student)"," self.template_value['navbar'] = {'course': True}"," models.MemcacheManager.end_readonly()"," self.render('course.html')","class UnitHandler(BaseHandler):\n \"\"\"Handler for generating unit page.\"\"\"\n\n # A list of callback functions which modules can use to add extra content\n # panels at the bottom of the page. Each function receives the app_context\n # as its single arg, and should return a string or None.\n EXTRA_CONTENT = []"," \"\"\"Handler for generating unit page.\"\"\""," EXTRA_CONTENT = []"," _LESSON_TITLE_PROVIDER = None"," class UnitLeftNavElements(object):\n\n def __init__(self, course, unit):\n self._urls = []\n self._index_by_label = {}\n\n if unit.pre_assessment:\n self._index_by_label['assessment.%d' % unit.pre_assessment] = ("," def __init__(self, course, unit):\n self._urls = []\n self._index_by_label = {}\n\n if unit.pre_assessment:\n self._index_by_label['assessment.%d' % unit.pre_assessment] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&assessment=%d' % ("," self._urls = []"," self._index_by_label = {}"," if unit.pre_assessment:\n self._index_by_label['assessment.%d' % unit.pre_assessment] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&assessment=%d' % (\n unit.unit_id, unit.pre_assessment))"," self._index_by_label['assessment.%d' % unit.pre_assessment] = (\n len(self._urls))"," self._urls.append('unit?unit=%s&assessment=%d' % (\n unit.unit_id, unit.pre_assessment))"," for lesson in course.get_lessons(unit.unit_id):\n self._index_by_label['lesson.%s' % lesson.lesson_id] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&lesson=%s' % (\n unit.unit_id, lesson.lesson_id))\n\n if lesson.activity and lesson.activity_listed:\n self._index_by_label['activity.%s' % lesson.lesson_id] = ("," self._index_by_label['lesson.%s' % lesson.lesson_id] = (\n len(self._urls))"," self._urls.append('unit?unit=%s&lesson=%s' % (\n unit.unit_id, lesson.lesson_id))"," if lesson.activity and lesson.activity_listed:\n self._index_by_label['activity.%s' % lesson.lesson_id] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&lesson=%s&activity=true' % (\n unit.unit_id, lesson.lesson_id))"," self._index_by_label['activity.%s' % lesson.lesson_id] = (\n len(self._urls))"," self._urls.append('unit?unit=%s&lesson=%s&activity=true' % (\n unit.unit_id, lesson.lesson_id))"," if unit.post_assessment:\n self._index_by_label['assessment.%d' % unit.post_assessment] = (\n len(self._urls))\n self._urls.append('unit?unit=%s&assessment=%d' % (\n unit.unit_id, unit.post_assessment))"," self._index_by_label['assessment.%d' % unit.post_assessment] = (\n len(self._urls))"," self._urls.append('unit?unit=%s&assessment=%d' % (\n unit.unit_id, unit.post_assessment))"," def get_url_by(self, item_type, item_id, offset):\n index = self._index_by_label['%s.%s' % (item_type, item_id)]\n index += offset\n if index >= 0 and index < len(self._urls):\n return self._urls[index]\n else:\n return None"," index = self._index_by_label['%s.%s' % (item_type, item_id)]"," if index >= 0 and index < len(self._urls):\n return self._urls[index]\n else:\n return None"," return self._urls[index]"," return None"," def set_lesson_title_provider(cls, lesson_title_provider):\n if cls._LESSON_TITLE_PROVIDER:\n raise Exception('Lesson title provider already set by a module')\n cls._LESSON_TITLE_PROVIDER = lesson_title_provider"," if cls._LESSON_TITLE_PROVIDER:\n raise Exception('Lesson title provider already set by a module')"," cls._LESSON_TITLE_PROVIDER = lesson_title_provider"," def _default_lesson_title_provider(\n self, app_context, unit, lesson, unused_student):\n title_h1 = safe_dom.Element(\n 'h1', className='gcb-lesson-title').add_text(lesson.title)\n can_see_drafts = courses_module.courses.can_see_drafts(self.app_context)\n if not lesson.now_available and can_see_drafts:\n title_h1.add_text(' ').add_child(\n safe_dom.Element('span', id='lesson-title-private').add_text("," title_h1 = safe_dom.Element(\n 'h1', className='gcb-lesson-title').add_text(lesson.title)"," can_see_drafts = courses_module.courses.can_see_drafts(self.app_context)"," if not lesson.now_available and can_see_drafts:\n title_h1.add_text(' ').add_child(\n safe_dom.Element('span', id='lesson-title-private').add_text(\n '(Private)'))"," title_h1.add_text(' ').add_child(\n safe_dom.Element('span', id='lesson-title-private').add_text(\n '(Private)'))"," return safe_dom.Element('div', className='lesson-title').add_child(\n title_h1)"," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n models.MemcacheManager.begin_readonly()\n try:\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return"," \"\"\"Handles GET requests.\"\"\""," models.MemcacheManager.begin_readonly()"," try:\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return\n\n # Extract incoming args\n unit, lesson, assessment = extract_unit_and_lesson_or_assessment("," student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)"," if not student:\n return"," return"," unit, lesson, assessment = extract_unit_and_lesson_or_assessment(\n self)"," unit_id = unit.unit_id"," available_units = self.get_track_matching_student(student)"," if ((not unit.now_available or unit not in available_units) and\n not courses_module.courses.can_see_drafts(self.app_context)):\n self.redirect('/')\n return"," self.redirect('/')"," return"," self.template_value['navbar'] = {'course': True}"," self.template_value['unit'] = unit"," self.template_value['unit_id'] = unit.unit_id"," self.student = student"," self.unit_id = unit_id"," add_course_outline_to_template(self, student)"," self.template_value['is_progress_recorded'] = is_progress_recorded(\n self, student)"," if (unit.show_contents_on_one_page and\n 'confirmation' not in self.request.params):\n self._show_all_contents(student, unit)\n else:\n self._show_single_element(student, unit, lesson, assessment)"," self._show_all_contents(student, unit)"," self._show_single_element(student, unit, lesson, assessment)"," for extra_content_hook in self.EXTRA_CONTENT:\n extra_content = extra_content_hook(self.app_context)\n if extra_content is not None:\n self.template_value['display_content'].append(extra_content)"," extra_content = extra_content_hook(self.app_context)"," if extra_content is not None:\n self.template_value['display_content'].append(extra_content)"," self.template_value['display_content'].append(extra_content)"," self._set_gcb_html_element_class()"," models.MemcacheManager.end_readonly()"," self.render('unit.html')"," def _set_gcb_html_element_class(self):\n \"\"\"Select conditional CSS to hide parts of the unit page.\"\"\"\n\n # TODO(jorr): Add an integration test for this once, LTI producer and\n # consumer code is completely checked in.\n\n gcb_html_element_class = []"," \"\"\"Select conditional CSS to hide parts of the unit page.\"\"\""," gcb_html_element_class = []"," if self.request.get('hide-controls') == 'true':\n gcb_html_element_class.append('hide-controls')"," gcb_html_element_class.append('hide-controls')"," if self.request.get('hide-lesson-title') == 'true':\n gcb_html_element_class.append('hide-lesson-title')"," gcb_html_element_class.append('hide-lesson-title')"," self.template_value['gcb_html_element_class'] = (\n ' '.join(gcb_html_element_class))"," def _apply_gcb_tags(self, text):\n return jinja_utils.get_gcb_tags_filter(self)(text)"," return jinja_utils.get_gcb_tags_filter(self)(text)"," def _show_all_contents(self, student, unit):\n course = self.get_course()\n display_content = []\n left_nav_elements = UnitHandler.UnitLeftNavElements(\n self.get_course(), unit)\n\n if unit.unit_header:\n display_content.append(self._apply_gcb_tags(unit.unit_header))"," course = self.get_course()"," display_content = []"," left_nav_elements = UnitHandler.UnitLeftNavElements(\n self.get_course(), unit)"," if unit.unit_header:\n display_content.append(self._apply_gcb_tags(unit.unit_header))"," display_content.append(self._apply_gcb_tags(unit.unit_header))"," if unit.pre_assessment:\n display_content.append(self.get_assessment_display_content(\n student, unit, course.find_unit_by_id(unit.pre_assessment),\n left_nav_elements, {}))"," display_content.append(self.get_assessment_display_content(\n student, unit, course.find_unit_by_id(unit.pre_assessment),\n left_nav_elements, {}))"," for lesson in course.get_lessons(unit.unit_id):\n self.lesson_id = lesson.lesson_id\n self.lesson_is_scored = lesson.scored\n template_values = copy.copy(self.template_value)\n self.set_lesson_content(student, unit, lesson, left_nav_elements,\n template_values)\n display_content.append(self.render_template_to_html(\n template_values, 'lesson_common.html'))"," self.lesson_id = lesson.lesson_id"," self.lesson_is_scored = lesson.scored"," template_values = copy.copy(self.template_value)"," self.set_lesson_content(student, unit, lesson, left_nav_elements,\n template_values)"," display_content.append(self.render_template_to_html(\n template_values, 'lesson_common.html'))"," if unit.post_assessment:\n display_content.append(self.get_assessment_display_content(\n student, unit, course.find_unit_by_id(unit.post_assessment),\n left_nav_elements, {}))"," display_content.append(self.get_assessment_display_content(\n student, unit, course.find_unit_by_id(unit.post_assessment),\n left_nav_elements, {}))"," if unit.unit_footer:\n display_content.append(self._apply_gcb_tags(unit.unit_footer))"," display_content.append(self._apply_gcb_tags(unit.unit_footer))"," self.template_value['display_content'] = display_content"," def _showing_first_element(self, unit, lesson, assessment, is_activity):\n \"\"\"Whether the unit page is showing the first element of a Unit.\"\"\"\n\n # If the unit has a pre-assessment, then that's the first element;\n # we are showing the first element iff we are showing that assessment.\n if unit.pre_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))"," \"\"\"Whether the unit page is showing the first element of a Unit.\"\"\""," if unit.pre_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))"," return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))"," unit_lessons = self.get_course().get_lessons(unit.unit_id)"," if unit_lessons:\n if lesson and lesson.lesson_id == unit_lessons[0].lesson_id:\n # If the first lesson has an activity, then we are showing\n # the first element if we are showing the lesson, and not\n # the activity.\n return not is_activity\n return False"," if lesson and lesson.lesson_id == unit_lessons[0].lesson_id:\n # If the first lesson has an activity, then we are showing\n # the first element if we are showing the lesson, and not\n # the activity.\n return not is_activity"," return not is_activity"," return False"," if unit.post_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))"," return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))"," if (not unit.pre_assessment and\n not unit.post_assessment and\n not unit_lessons):\n\n return True"," return True"," return False"," def _showing_last_element(self, unit, lesson, assessment, is_activity):\n \"\"\"Whether the unit page is showing the last element of a Unit.\"\"\"\n\n # If the unit has a post-assessment, then that's the last element;\n # we are showing the last element iff we are showing that assessment.\n if unit.post_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))"," \"\"\"Whether the unit page is showing the last element of a Unit.\"\"\""," if unit.post_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))"," return (assessment and\n str(assessment.unit_id) == str(unit.post_assessment))"," unit_lessons = self.get_course().get_lessons(unit.unit_id)"," if unit_lessons:\n if lesson and lesson.lesson_id == unit_lessons[-1].lesson_id:\n # If the lesson has an activity, and we're showing the\n # activity, that's last.\n return is_activity == lesson.has_activity\n return False"," if lesson and lesson.lesson_id == unit_lessons[-1].lesson_id:\n # If the lesson has an activity, and we're showing the\n # activity, that's last.\n return is_activity == lesson.has_activity"," return is_activity == lesson.has_activity"," return False"," if unit.pre_assessment:\n return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))"," return (assessment and\n str(assessment.unit_id) == str(unit.pre_assessment))"," if (not unit.pre_assessment and\n not unit.post_assessment and\n not unit_lessons):\n\n return True"," return True"," return False"," def _show_single_element(self, student, unit, lesson, assessment):\n # Add markup to page which depends on the kind of content.\n left_nav_elements = UnitHandler.UnitLeftNavElements(\n self.get_course(), unit)\n\n # need 'activity' to be True or False, and not the string 'true' or None\n is_activity = (self.request.get('activity') != '' or\n '/activity' in self.request.path)"," left_nav_elements = UnitHandler.UnitLeftNavElements(\n self.get_course(), unit)"," is_activity = (self.request.get('activity') != '' or\n '/activity' in self.request.path)"," display_content = []"," if (unit.unit_header and\n self._showing_first_element(unit, lesson, assessment, is_activity)):\n\n display_content.append(self._apply_gcb_tags(unit.unit_header))"," display_content.append(self._apply_gcb_tags(unit.unit_header))"," if assessment:\n if 'confirmation' in self.request.params:\n self.set_confirmation_content(student, unit, assessment,\n left_nav_elements)\n self.template_value['assessment_name'] = (\n self.template_value.get('assessment_name').lower())\n display_content.append(self.render_template_to_html(\n self.template_value, 'test_confirmation_content.html'))"," if 'confirmation' in self.request.params:\n self.set_confirmation_content(student, unit, assessment,\n left_nav_elements)\n self.template_value['assessment_name'] = (\n self.template_value.get('assessment_name').lower())\n display_content.append(self.render_template_to_html(\n self.template_value, 'test_confirmation_content.html'))\n else:"," self.set_confirmation_content(student, unit, assessment,\n left_nav_elements)"," self.template_value['assessment_name'] = (\n self.template_value.get('assessment_name').lower())"," display_content.append(self.render_template_to_html(\n self.template_value, 'test_confirmation_content.html'))"," display_content.append(self.get_assessment_display_content(\n student, unit, assessment, left_nav_elements,\n self.template_value))"," elif lesson:\n self.lesson_id = lesson.lesson_id\n self.lesson_is_scored = lesson.scored\n if is_activity:\n self.set_activity_content(student, unit, lesson,\n left_nav_elements)\n else:\n self.set_lesson_content(student, unit, lesson,"," self.lesson_id = lesson.lesson_id"," self.lesson_is_scored = lesson.scored"," if is_activity:\n self.set_activity_content(student, unit, lesson,\n left_nav_elements)\n else:\n self.set_lesson_content(student, unit, lesson,\n left_nav_elements, self.template_value)"," self.set_activity_content(student, unit, lesson,\n left_nav_elements)"," self.set_lesson_content(student, unit, lesson,\n left_nav_elements, self.template_value)"," display_content.append(self.render_template_to_html(\n self.template_value, 'lesson_common.html'))"," if (unit.unit_footer and\n self._showing_last_element(unit, lesson, assessment, is_activity)):\n\n display_content.append(self._apply_gcb_tags(unit.unit_footer))"," display_content.append(self._apply_gcb_tags(unit.unit_footer))"," self.template_value['display_content'] = display_content"," def get_assessment_display_content(self, student, unit, assessment,\n left_nav_elements, template_values):\n template_values['page_type'] = ASSESSMENT_PAGE_TYPE\n template_values['assessment'] = assessment\n template_values['back_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, -1)\n template_values['next_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 1)"," template_values['page_type'] = ASSESSMENT_PAGE_TYPE"," template_values['assessment'] = assessment"," template_values['back_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, -1)"," template_values['next_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 1)"," assessment_handler = AssessmentHandler()"," assessment_handler.app_context = self.app_context"," assessment_handler.request = self.request"," return assessment_handler.get_assessment_content(\n student, self.get_course(), assessment, as_lesson=True)"," def set_confirmation_content(self, student, unit, assessment,\n left_nav_elements):\n course = self.get_course()\n self.template_value['page_type'] = ASSESSMENT_CONFIRMATION_PAGE_TYPE\n self.template_value['unit'] = unit\n self.template_value['assessment'] = assessment\n self.template_value['is_confirmation'] = True\n self.template_value['assessment_name'] = assessment.title"," course = self.get_course()"," self.template_value['page_type'] = ASSESSMENT_CONFIRMATION_PAGE_TYPE"," self.template_value['unit'] = unit"," self.template_value['assessment'] = assessment"," self.template_value['is_confirmation'] = True"," self.template_value['assessment_name'] = assessment.title"," self.template_value['score'] = (\n course.get_score(student, str(assessment.unit_id)))"," self.template_value['is_last_assessment'] = (\n course.is_last_assessment(assessment))"," self.template_value['overall_score'] = (\n course.get_overall_score(student))"," self.template_value['result'] = course.get_overall_result(student)"," self.template_value['back_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 0)"," self.template_value['next_button_url'] = left_nav_elements.get_url_by(\n 'assessment', assessment.unit_id, 1)"," def set_activity_content(self, student, unit, lesson, left_nav_elements):\n self.template_value['page_type'] = ACTIVITY_PAGE_TYPE\n self.template_value['lesson'] = lesson\n self.template_value['lesson_id'] = lesson.lesson_id\n self.template_value['back_button_url'] = left_nav_elements.get_url_by(\n 'activity', lesson.lesson_id, -1)\n self.template_value['next_button_url'] = left_nav_elements.get_url_by(\n 'activity', lesson.lesson_id, 1)"," self.template_value['page_type'] = ACTIVITY_PAGE_TYPE"," self.template_value['lesson'] = lesson"," self.template_value['lesson_id'] = lesson.lesson_id"," self.template_value['back_button_url'] = left_nav_elements.get_url_by(\n 'activity', lesson.lesson_id, -1)"," self.template_value['next_button_url'] = left_nav_elements.get_url_by(\n 'activity', lesson.lesson_id, 1)"," self.template_value['activity'] = {\n 'title': lesson.activity_title,\n 'activity_script_src': (\n self.get_course().get_activity_filename(unit.unit_id,\n lesson.lesson_id))}"," self.template_value['page_type'] = 'activity'"," self.template_value['title'] = lesson.activity_title"," if is_progress_recorded(self, student):\n # Mark this page as accessed. This is done after setting the\n # student progress template value, so that the mark only shows up\n # after the student visits the page for the first time.\n self.get_course().get_progress_tracker().put_activity_accessed(\n student, unit.unit_id, lesson.lesson_id)"," self.get_course().get_progress_tracker().put_activity_accessed(\n student, unit.unit_id, lesson.lesson_id)"," def _get_lesson_title(self, unit, lesson, student):\n title = None\n if self._LESSON_TITLE_PROVIDER:\n title = self._LESSON_TITLE_PROVIDER(\n self.app_context, unit, lesson, student)\n if title is None:\n title = self._default_lesson_title_provider(\n self.app_context, unit, lesson, student)"," title = None"," if self._LESSON_TITLE_PROVIDER:\n title = self._LESSON_TITLE_PROVIDER(\n self.app_context, unit, lesson, student)"," title = self._LESSON_TITLE_PROVIDER(\n self.app_context, unit, lesson, student)"," if title is None:\n title = self._default_lesson_title_provider(\n self.app_context, unit, lesson, student)"," title = self._default_lesson_title_provider(\n self.app_context, unit, lesson, student)"," return title"," def set_lesson_content(self, student, unit, lesson, left_nav_elements,\n template_values):\n template_values['page_type'] = UNIT_PAGE_TYPE\n template_values['lesson'] = lesson\n template_values['lesson_id'] = lesson.lesson_id\n template_values['back_button_url'] = left_nav_elements.get_url_by(\n 'lesson', lesson.lesson_id, -1)\n template_values['next_button_url'] = left_nav_elements.get_url_by("," template_values['page_type'] = UNIT_PAGE_TYPE"," template_values['lesson'] = lesson"," template_values['lesson_id'] = lesson.lesson_id"," template_values['back_button_url'] = left_nav_elements.get_url_by(\n 'lesson', lesson.lesson_id, -1)"," template_values['next_button_url'] = left_nav_elements.get_url_by(\n 'lesson', lesson.lesson_id, 1)"," template_values['page_type'] = 'unit'"," template_values['title'] = self._get_lesson_title(unit, lesson, student)"," if not lesson.manual_progress and is_progress_recorded(self, student):\n # Mark this page as accessed. This is done after setting the\n # student progress template value, so that the mark only shows up\n # after the student visits the page for the first time.\n self.get_course().get_progress_tracker().put_html_accessed(\n student, unit.unit_id, lesson.lesson_id)"," self.get_course().get_progress_tracker().put_html_accessed(\n student, unit.unit_id, lesson.lesson_id)","class AssessmentHandler(BaseHandler):\n \"\"\"Handler for generating assessment page.\"\"\"\n\n # pylint: disable=too-many-statements\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)"," \"\"\"Handler for generating assessment page.\"\"\""," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return\n\n # Extract incoming args, binding to self if needed."," \"\"\"Handles GET requests.\"\"\""," student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)"," if not student:\n return"," return"," assessment_name = self.request.get('name')"," self.unit_id = assessment_name"," course = self.get_course()"," unit = course.find_unit_by_id(self.unit_id)"," if not unit:\n self.error(404)\n return"," self.error(404)"," return"," parent_unit = course.get_parent_unit(self.unit_id)"," if parent_unit:\n self.redirect('/unit?unit=%s&assessment=%s' %\n (parent_unit.unit_id, self.unit_id))\n return"," self.redirect('/unit?unit=%s&assessment=%s' %\n (parent_unit.unit_id, self.unit_id))"," return"," if (not unit.now_available and\n not courses_module.courses.can_see_drafts(self.app_context)):\n self.redirect('/')\n return"," self.redirect('/')"," return"," self.template_value['main_content'] = (\n self.get_assessment_content(student, course, unit, as_lesson=False))"," self.template_value['assessment_name'] = assessment_name"," self.template_value['unit_id'] = self.unit_id"," self.template_value['navbar'] = {'course': True}"," self.render('assessment_page.html')"," def get_assessment_content(self, student, course, unit, as_lesson):\n model_version = course.get_assessment_model_version(unit)\n assert model_version in courses.SUPPORTED_ASSESSMENT_MODEL_VERSIONS\n self.template_value['model_version'] = model_version\n\n if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\n configure_readonly_view = self.configure_readonly_view_1_4\n configure_active_view = self.configure_active_view_1_4"," model_version = course.get_assessment_model_version(unit)"," self.template_value['model_version'] = model_version"," if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\n configure_readonly_view = self.configure_readonly_view_1_4\n configure_active_view = self.configure_active_view_1_4\n get_review_received = self.get_review_received_1_4\n elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\n configure_readonly_view = self.configure_readonly_view_1_5\n configure_active_view = self.configure_active_view_1_5\n get_review_received = self.get_review_received_1_5"," configure_readonly_view = self.configure_readonly_view_1_4"," configure_active_view = self.configure_active_view_1_4"," get_review_received = self.get_review_received_1_4"," elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\n configure_readonly_view = self.configure_readonly_view_1_5\n configure_active_view = self.configure_active_view_1_5\n get_review_received = self.get_review_received_1_5\n else:\n raise ValueError('Bad assessment model version: %s' % model_version)"," configure_readonly_view = self.configure_readonly_view_1_5"," configure_active_view = self.configure_active_view_1_5"," get_review_received = self.get_review_received_1_5"," self.template_value['unit_id'] = unit.unit_id"," self.template_value['as_lesson'] = as_lesson"," self.template_value['assessment_title'] = unit.title"," self.template_value['assessment_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('assessment-post'))"," self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))"," self.template_value['grader'] = unit.workflow.get_grader()"," readonly_view = False"," due_date_exceeded = False"," submission_contents = None"," review_steps_for = []"," submission_due_date = unit.workflow.get_submission_due_date()"," if submission_due_date:\n self.template_value['submission_due_date'] = (\n submission_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\n\n time_now = datetime.datetime.now()\n if time_now > submission_due_date:\n readonly_view = True\n due_date_exceeded = True"," self.template_value['submission_due_date'] = (\n submission_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))"," time_now = datetime.datetime.now()"," if time_now > submission_due_date:\n readonly_view = True\n due_date_exceeded = True\n self.template_value['due_date_exceeded'] = True"," readonly_view = True"," due_date_exceeded = True"," self.template_value['due_date_exceeded'] = True"," if course.needs_human_grader(unit) and not student.is_transient:\n self.template_value['matcher'] = unit.workflow.get_matcher()\n\n rp = course.get_reviews_processor()\n review_steps_by = rp.get_review_steps_by(\n unit.unit_id, student.get_key())\n\n # Determine if the student can see others' reviews of his/her work."," self.template_value['matcher'] = unit.workflow.get_matcher()"," rp = course.get_reviews_processor()"," review_steps_by = rp.get_review_steps_by(\n unit.unit_id, student.get_key())"," if (ReviewUtils.has_completed_enough_reviews(\n review_steps_by, unit.workflow.get_review_min_count())):\n submission_and_review_steps = (\n rp.get_submission_and_review_steps(\n unit.unit_id, student.get_key()))\n\n if submission_and_review_steps:\n submission_contents = submission_and_review_steps[0]"," submission_and_review_steps = (\n rp.get_submission_and_review_steps(\n unit.unit_id, student.get_key()))"," if submission_and_review_steps:\n submission_contents = submission_and_review_steps[0]\n review_steps_for = submission_and_review_steps[1]"," submission_contents = submission_and_review_steps[0]"," review_steps_for = submission_and_review_steps[1]"," review_keys_for_student = []"," for review_step in review_steps_for:\n can_show_review = (\n review_step.state == domain.REVIEW_STATE_COMPLETED\n and not review_step.removed\n and review_step.review_key\n )\n\n if can_show_review:"," can_show_review = (\n review_step.state == domain.REVIEW_STATE_COMPLETED\n and not review_step.removed\n and review_step.review_key\n )"," if can_show_review:\n review_keys_for_student.append(review_step.review_key)"," review_keys_for_student.append(review_step.review_key)"," reviews_for_student = rp.get_reviews_by_keys(\n unit.unit_id, review_keys_for_student)"," self.template_value['reviews_received'] = [get_review_received(\n unit, review) for review in reviews_for_student]"," submission_contents = student_work.Submission.get_contents(\n unit.unit_id, student.get_key())"," if submission_contents or due_date_exceeded:\n readonly_view = True\n configure_readonly_view(unit, submission_contents)"," readonly_view = True"," configure_readonly_view(unit, submission_contents)"," if not readonly_view:\n if not student.is_transient:\n submission_contents = student_work.Submission.get_contents(\n unit.unit_id, student.get_key())\n configure_active_view(unit, submission_contents)"," if not student.is_transient:\n submission_contents = student_work.Submission.get_contents(\n unit.unit_id, student.get_key())"," submission_contents = student_work.Submission.get_contents(\n unit.unit_id, student.get_key())"," configure_active_view(unit, submission_contents)"," return self.render_template_to_html(\n self.template_value, 'assessment.html')"," def configure_readonly_view_1_4(self, unit, submission_contents):\n self.template_value['readonly_student_assessment'] = (\n create_readonly_assessment_params(\n self.get_course().get_assessment_content(unit),\n StudentWorkUtils.get_answer_list(submission_contents)))"," self.template_value['readonly_student_assessment'] = (\n create_readonly_assessment_params(\n self.get_course().get_assessment_content(unit),\n StudentWorkUtils.get_answer_list(submission_contents)))"," def configure_readonly_view_1_5(self, unit, submission_contents):\n self.template_value['readonly_student_assessment'] = True\n self.template_value['html_content'] = unit.html_content\n self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)"," self.template_value['readonly_student_assessment'] = True"," self.template_value['html_content'] = unit.html_content"," self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)"," def configure_active_view_1_4(self, unit, submission_contents):\n self.template_value['assessment_script_src'] = (\n self.get_course().get_assessment_filename(unit.unit_id))\n if submission_contents:\n # If a previous submission exists, reinstate it.\n self.template_value['saved_answers'] = transforms.dumps(\n StudentWorkUtils.get_answer_list(submission_contents))"," self.template_value['assessment_script_src'] = (\n self.get_course().get_assessment_filename(unit.unit_id))"," if submission_contents:\n # If a previous submission exists, reinstate it.\n self.template_value['saved_answers'] = transforms.dumps(\n StudentWorkUtils.get_answer_list(submission_contents))"," self.template_value['saved_answers'] = transforms.dumps(\n StudentWorkUtils.get_answer_list(submission_contents))"," def configure_active_view_1_5(self, unit, submission_contents):\n self.template_value['html_content'] = unit.html_content\n self.template_value['html_check_answers'] = unit.html_check_answers\n if submission_contents:\n # If a previous submission exists, reinstate it.\n self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)"," self.template_value['html_content'] = unit.html_content"," self.template_value['html_check_answers'] = unit.html_check_answers"," if submission_contents:\n # If a previous submission exists, reinstate it.\n self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)"," self.template_value['html_saved_answers'] = transforms.dumps(\n submission_contents)"," def get_review_received_1_4(self, unit, review):\n return create_readonly_assessment_params(\n self.get_course().get_review_content(unit),\n StudentWorkUtils.get_answer_list(review))"," return create_readonly_assessment_params(\n self.get_course().get_review_content(unit),\n StudentWorkUtils.get_answer_list(review))"," def get_review_received_1_5(self, unit, review):\n return {\n 'content': unit.html_review_form,\n 'saved_answers': transforms.dumps(review)\n }"," return {\n 'content': unit.html_review_form,\n 'saved_answers': transforms.dumps(review)\n }","class ReviewDashboardHandler(BaseHandler):\n \"\"\"Handler for generating the index of reviews that a student has to do.\"\"\"\n\n def _populate_template(self, course, unit, review_steps):\n \"\"\"Adds variables to the template for the review dashboard.\"\"\"\n self.template_value['assessment_name'] = unit.title\n self.template_value['unit_id'] = unit.unit_id"," \"\"\"Handler for generating the index of reviews that a student has to do.\"\"\""," def _populate_template(self, course, unit, review_steps):\n \"\"\"Adds variables to the template for the review dashboard.\"\"\"\n self.template_value['assessment_name'] = unit.title\n self.template_value['unit_id'] = unit.unit_id\n\n parent_unit = course.get_parent_unit(unit.unit_id)\n\n if parent_unit is not None:"," \"\"\"Adds variables to the template for the review dashboard.\"\"\""," self.template_value['assessment_name'] = unit.title"," self.template_value['unit_id'] = unit.unit_id"," parent_unit = course.get_parent_unit(unit.unit_id)"," if parent_unit is not None:\n self.template_value['back_link'] = 'unit?unit=%s&assessment=%s' % (\n parent_unit.unit_id, unit.unit_id)\n else:\n self.template_value['back_link'] = (\n 'assessment?name=%s' % unit.unit_id)"," self.template_value['back_link'] = 'unit?unit=%s&assessment=%s' % (\n parent_unit.unit_id, unit.unit_id)"," self.template_value['back_link'] = (\n 'assessment?name=%s' % unit.unit_id)"," self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))"," self.template_value['review_dashboard_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('review-dashboard-post'))"," self.template_value['REVIEW_STATE_COMPLETED'] = (\n domain.REVIEW_STATE_COMPLETED)"," self.template_value['review_steps'] = review_steps"," self.template_value['review_min_count'] = (\n unit.workflow.get_review_min_count())"," review_due_date = unit.workflow.get_review_due_date()"," if review_due_date:\n self.template_value['review_due_date'] = review_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)"," self.template_value['review_due_date'] = review_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)"," time_now = datetime.datetime.now()"," self.template_value['due_date_exceeded'] = (time_now > review_due_date)"," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n course = self.get_course()\n rp = course.get_reviews_processor()"," \"\"\"Handles GET requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," course = self.get_course()"," rp = course.get_reviews_processor()"," unit, _ = extract_unit_and_lesson(self)"," if not unit:\n self.error(404)\n return"," self.error(404)"," return"," self.template_value['navbar'] = {'course': True}"," if not course.needs_human_grader(unit):\n self.error(404)\n return"," self.error(404)"," return"," if not rp.does_submission_exist(unit.unit_id, student.get_key()):\n self.template_value['error_code'] = (\n 'cannot_review_before_submitting_assignment')\n self.render('error.html')\n return"," self.template_value['error_code'] = (\n 'cannot_review_before_submitting_assignment')"," self.render('error.html')"," return"," review_steps = rp.get_review_steps_by(unit.unit_id, student.get_key())"," self._populate_template(course, unit, review_steps)"," required_review_count = unit.workflow.get_review_min_count()"," self.template_value['can_request_new_review'] = (\n len(review_steps) < required_review_count or\n ReviewUtils.has_completed_all_assigned_reviews(review_steps)\n )"," self.render('review_dashboard.html')"," def post(self):\n \"\"\"Allows a reviewer to request a new review.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(\n self.request, 'review-dashboard-post'):"," \"\"\"Allows a reviewer to request a new review.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," if not self.assert_xsrf_token_or_fail(\n self.request, 'review-dashboard-post'):\n return"," return"," course = self.get_course()"," unit, unused_lesson = extract_unit_and_lesson(self)"," if not unit:\n self.error(404)\n return"," self.error(404)"," return"," rp = course.get_reviews_processor()"," review_steps = rp.get_review_steps_by(unit.unit_id, student.get_key())"," self.template_value['navbar'] = {'course': True}"," if not course.needs_human_grader(unit):\n self.error(404)\n return"," self.error(404)"," return"," if not rp.does_submission_exist(unit.unit_id, student.get_key()):\n self.template_value['error_code'] = (\n 'cannot_review_before_submitting_assignment')\n self.render('error.html')\n return"," self.template_value['error_code'] = (\n 'cannot_review_before_submitting_assignment')"," self.render('error.html')"," return"," time_now = datetime.datetime.now()"," review_due_date = unit.workflow.get_review_due_date()"," if time_now > review_due_date:\n self.template_value['error_code'] = (\n 'cannot_request_review_after_deadline')\n self.render('error.html')\n return"," self.template_value['error_code'] = (\n 'cannot_request_review_after_deadline')"," self.render('error.html')"," return"," review_min_count = unit.workflow.get_review_min_count()"," can_request_new_review = (\n len(review_steps) < review_min_count or\n ReviewUtils.has_completed_all_assigned_reviews(review_steps))"," if not can_request_new_review:\n self.template_value['review_min_count'] = review_min_count\n self.template_value['error_code'] = 'must_complete_more_reviews'\n self.render('error.html')\n return"," self.template_value['review_min_count'] = review_min_count"," self.template_value['error_code'] = 'must_complete_more_reviews'"," self.render('error.html')"," return"," self.template_value['no_submissions_available'] = True"," try:\n review_step_key = rp.get_new_review(unit.unit_id, student.get_key())\n redirect_params = {\n 'key': review_step_key,\n 'unit': unit.unit_id,\n }\n self.redirect('/review?%s' % urllib.urlencode(redirect_params))\n except Exception: # pylint: disable=broad-except"," review_step_key = rp.get_new_review(unit.unit_id, student.get_key())"," redirect_params = {\n 'key': review_step_key,\n 'unit': unit.unit_id,\n }"," self.redirect('/review?%s' % urllib.urlencode(redirect_params))"," review_steps = rp.get_review_steps_by(\n unit.unit_id, student.get_key())"," self._populate_template(course, unit, review_steps)"," self.render('review_dashboard.html')","class ReviewHandler(BaseHandler):\n \"\"\"Handler for generating the submission page for individual reviews.\"\"\"\n\n # pylint: disable=too-many-statements\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:"," \"\"\"Handler for generating the submission page for individual reviews.\"\"\""," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n course = self.get_course()\n rp = course.get_reviews_processor()"," \"\"\"Handles GET requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," course = self.get_course()"," rp = course.get_reviews_processor()"," unit, unused_lesson = extract_unit_and_lesson(self)"," if not course.needs_human_grader(unit):\n self.error(404)\n return"," self.error(404)"," return"," review_step_key = self.request.get('key')"," if not unit or not review_step_key:\n self.error(404)\n return"," self.error(404)"," return"," try:\n review_step_key = db.Key(encoded=review_step_key)\n review_step = rp.get_review_steps_by_keys(\n unit.unit_id, [review_step_key])[0]\n except Exception: # pylint: disable=broad-except\n self.error(404)\n return"," review_step_key = db.Key(encoded=review_step_key)"," review_step = rp.get_review_steps_by_keys(\n unit.unit_id, [review_step_key])[0]"," self.error(404)"," return"," if not review_step:\n self.error(404)\n return"," self.error(404)"," return"," if not student.has_same_key_as(review_step.reviewer_key):\n self.error(404)\n return"," self.error(404)"," return"," model_version = course.get_assessment_model_version(unit)"," self.template_value['model_version'] = model_version"," if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\n configure_assessment_view = self.configure_assessment_view_1_4\n configure_readonly_review = self.configure_readonly_review_1_4\n configure_active_review = self.configure_active_review_1_4\n elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\n configure_assessment_view = self.configure_assessment_view_1_5\n configure_readonly_review = self.configure_readonly_review_1_5\n configure_active_review = self.configure_active_review_1_5"," configure_assessment_view = self.configure_assessment_view_1_4"," configure_readonly_review = self.configure_readonly_review_1_4"," configure_active_review = self.configure_active_review_1_4"," elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\n configure_assessment_view = self.configure_assessment_view_1_5\n configure_readonly_review = self.configure_readonly_review_1_5\n configure_active_review = self.configure_active_review_1_5\n else:\n raise ValueError('Bad assessment model version: %s' % model_version)"," configure_assessment_view = self.configure_assessment_view_1_5"," configure_readonly_review = self.configure_readonly_review_1_5"," configure_active_review = self.configure_active_review_1_5"," self.template_value['navbar'] = {'course': True}"," self.template_value['unit_id'] = unit.unit_id"," self.template_value['key'] = review_step_key"," submission_key = review_step.submission_key"," submission_contents = student_work.Submission.get_contents_by_key(\n submission_key)"," configure_assessment_view(unit, submission_contents)"," review_due_date = unit.workflow.get_review_due_date()"," if review_due_date:\n self.template_value['review_due_date'] = review_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)"," self.template_value['review_due_date'] = review_due_date.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)"," review_key = review_step.review_key"," rev = rp.get_reviews_by_keys(\n unit.unit_id, [review_key])[0] if review_key else None"," time_now = datetime.datetime.now()"," show_readonly_review = (\n review_step.state == domain.REVIEW_STATE_COMPLETED or\n time_now > review_due_date)"," self.template_value['due_date_exceeded'] = (time_now > review_due_date)"," if show_readonly_review:\n configure_readonly_review(unit, rev)\n else:\n # Populate the review form,\n configure_active_review(unit, rev)"," configure_readonly_review(unit, rev)"," configure_active_review(unit, rev)"," self.template_value['assessment_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('review-post'))"," self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))"," self.render('review.html')"," def configure_assessment_view_1_4(self, unit, submission_contents):\n readonly_student_assessment = create_readonly_assessment_params(\n self.get_course().get_assessment_content(unit),\n StudentWorkUtils.get_answer_list(submission_contents))\n self.template_value[\n 'readonly_student_assessment'] = readonly_student_assessment"," readonly_student_assessment = create_readonly_assessment_params(\n self.get_course().get_assessment_content(unit),\n StudentWorkUtils.get_answer_list(submission_contents))"," self.template_value[\n 'readonly_student_assessment'] = readonly_student_assessment"," def configure_assessment_view_1_5(self, unit, submission_contents):\n self.template_value['html_review_content'] = unit.html_content\n self.template_value['html_reviewee_answers'] = transforms.dumps(\n submission_contents)"," self.template_value['html_review_content'] = unit.html_content"," self.template_value['html_reviewee_answers'] = transforms.dumps(\n submission_contents)"," def configure_readonly_review_1_4(self, unit, review_contents):\n readonly_review_form = create_readonly_assessment_params(\n self.get_course().get_review_content(unit),\n StudentWorkUtils.get_answer_list(review_contents))\n self.template_value['readonly_review_form'] = readonly_review_form"," readonly_review_form = create_readonly_assessment_params(\n self.get_course().get_review_content(unit),\n StudentWorkUtils.get_answer_list(review_contents))"," self.template_value['readonly_review_form'] = readonly_review_form"," def configure_readonly_review_1_5(self, unit, review_contents):\n self.template_value['readonly_review_form'] = True\n self.template_value['html_review_form'] = unit.html_review_form\n self.template_value['html_review_answers'] = transforms.dumps(\n review_contents)"," self.template_value['readonly_review_form'] = True"," self.template_value['html_review_form'] = unit.html_review_form"," self.template_value['html_review_answers'] = transforms.dumps(\n review_contents)"," def configure_active_review_1_4(self, unit, review_contents):\n self.template_value['assessment_script_src'] = (\n self.get_course().get_review_filename(unit.unit_id))\n saved_answers = (\n StudentWorkUtils.get_answer_list(review_contents)\n if review_contents else [])\n self.template_value['saved_answers'] = transforms.dumps(saved_answers)"," self.template_value['assessment_script_src'] = (\n self.get_course().get_review_filename(unit.unit_id))"," saved_answers = (\n StudentWorkUtils.get_answer_list(review_contents)\n if review_contents else [])"," self.template_value['saved_answers'] = transforms.dumps(saved_answers)"," def configure_active_review_1_5(self, unit, review_contents):\n self.template_value['html_review_form'] = unit.html_review_form\n self.template_value['html_review_answers'] = transforms.dumps(\n review_contents)"," self.template_value['html_review_form'] = unit.html_review_form"," self.template_value['html_review_answers'] = transforms.dumps(\n review_contents)"," def post(self):\n \"\"\"Handles POST requests, when a reviewer submits a review.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'review-post'):\n return"," \"\"\"Handles POST requests, when a reviewer submits a review.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," if not self.assert_xsrf_token_or_fail(self.request, 'review-post'):\n return"," return"," course = self.get_course()"," rp = course.get_reviews_processor()"," unit_id = self.request.get('unit_id')"," unit = self.find_unit_by_id(unit_id)"," if not unit or not course.needs_human_grader(unit):\n self.error(404)\n return"," self.error(404)"," return"," review_step_key = self.request.get('key')"," if not review_step_key:\n self.error(404)\n return"," self.error(404)"," return"," try:\n review_step_key = db.Key(encoded=review_step_key)\n review_step = rp.get_review_steps_by_keys(\n unit.unit_id, [review_step_key])[0]\n except Exception: # pylint: disable=broad-except\n self.error(404)\n return"," review_step_key = db.Key(encoded=review_step_key)"," review_step = rp.get_review_steps_by_keys(\n unit.unit_id, [review_step_key])[0]"," self.error(404)"," return"," if not student.has_same_key_as(review_step.reviewer_key):\n self.error(404)\n return"," self.error(404)"," return"," self.template_value['navbar'] = {'course': True}"," self.template_value['unit_id'] = unit.unit_id"," time_now = datetime.datetime.now()"," review_due_date = unit.workflow.get_review_due_date()"," if time_now > review_due_date:\n self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)\n self.template_value['review_due_date'] = (\n review_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\n self.template_value['error_code'] = 'review_deadline_exceeded'\n self.render('error.html')\n return"," self.template_value['time_now'] = time_now.strftime(\n HUMAN_READABLE_DATETIME_FORMAT)"," self.template_value['review_due_date'] = (\n review_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))"," self.template_value['error_code'] = 'review_deadline_exceeded'"," self.render('error.html')"," return"," mark_completed = (self.request.get('is_draft') == 'false')"," self.template_value['is_draft'] = (not mark_completed)"," review_payload = self.request.get('answers')"," review_payload = transforms.loads(\n review_payload) if review_payload else []"," try:\n rp.write_review(\n unit.unit_id, review_step_key, review_payload, mark_completed)\n course.update_final_grades(student)\n except domain.TransitionError:\n self.template_value['error_code'] = 'review_already_submitted'\n self.render('error.html')\n return"," rp.write_review(\n unit.unit_id, review_step_key, review_payload, mark_completed)"," course.update_final_grades(student)"," self.template_value['error_code'] = 'review_already_submitted'"," self.render('error.html')"," return"," self.render('review_confirmation.html')","class EventsRESTHandler(BaseRESTHandler):\n \"\"\"Provides REST API for an Event.\"\"\"\n\n def get(self):\n \"\"\"Returns a 404 error; this handler should not be GET-accessible.\"\"\"\n self.error(404)\n return"," \"\"\"Provides REST API for an Event.\"\"\""," def get(self):\n \"\"\"Returns a 404 error; this handler should not be GET-accessible.\"\"\"\n self.error(404)\n return"," \"\"\"Returns a 404 error; this handler should not be GET-accessible.\"\"\""," self.error(404)"," return"," def _add_request_facts(self, payload_json):\n payload_dict = transforms.loads(payload_json)\n if 'loc' not in payload_dict:\n payload_dict['loc'] = {}\n loc = payload_dict['loc']\n loc['locale'] = self.get_locale_for(self.request, self.app_context)\n loc['language'] = self.request.headers.get('Accept-Language')\n loc['country'] = self.request.headers.get('X-AppEngine-Country')"," payload_dict = transforms.loads(payload_json)"," if 'loc' not in payload_dict:\n payload_dict['loc'] = {}"," payload_dict['loc'] = {}"," loc = payload_dict['loc']"," loc['locale'] = self.get_locale_for(self.request, self.app_context)"," loc['language'] = self.request.headers.get('Accept-Language')"," loc['country'] = self.request.headers.get('X-AppEngine-Country')"," loc['region'] = self.request.headers.get('X-AppEngine-Region')"," loc['city'] = self.request.headers.get('X-AppEngine-City')"," lat_long = self.request.headers.get('X-AppEngine-CityLatLong')"," if lat_long:\n latitude, longitude = lat_long.split(',')\n loc['lat'] = float(latitude)\n loc['long'] = float(longitude)"," latitude, longitude = lat_long.split(',')"," loc['lat'] = float(latitude)"," loc['long'] = float(longitude)"," user_agent = self.request.headers.get('User-Agent')"," if user_agent:\n payload_dict['user_agent'] = user_agent"," payload_dict['user_agent'] = user_agent"," payload_json = transforms.dumps(payload_dict).lstrip(\n models.transforms.JSON_XSSI_PREFIX)"," return payload_json"," def post(self):\n \"\"\"Receives event and puts it into datastore.\"\"\"\n\n COURSE_EVENTS_RECEIVED.inc()\n can = (\n CAN_PERSIST_ACTIVITY_EVENTS.value or\n CAN_PERSIST_PAGE_EVENTS.value or\n CAN_PERSIST_TAG_EVENTS.value)"," \"\"\"Receives event and puts it into datastore.\"\"\""," COURSE_EVENTS_RECEIVED.inc()"," can = (\n CAN_PERSIST_ACTIVITY_EVENTS.value or\n CAN_PERSIST_PAGE_EVENTS.value or\n CAN_PERSIST_TAG_EVENTS.value)"," if not can:\n return"," return"," request = transforms.loads(self.request.get('request'))"," if not self.assert_xsrf_token_or_fail(request, 'event-post', {}):\n return"," return"," user = self.get_user()"," if not user:\n return"," return"," source = request.get('source')"," payload_json = request.get('payload')"," payload_json = self._add_request_facts(payload_json)"," models.EventEntity.record(source, user, payload_json)"," COURSE_EVENTS_RECORDED.inc()"," self.process_event(user, source, payload_json)"," def process_event(self, user, source, payload_json):\n \"\"\"Processes an event after it has been recorded in the event stream.\"\"\"\n\n student = models.Student.get_enrolled_student_by_email(user.email())\n if not student:\n return\n\n payload = transforms.loads(payload_json)"," \"\"\"Processes an event after it has been recorded in the event stream.\"\"\""," student = models.Student.get_enrolled_student_by_email(user.email())"," if not student:\n return"," return"," payload = transforms.loads(payload_json)"," if 'location' not in payload:\n return"," return"," source_url = payload['location']"," if source in TAGS_THAT_TRIGGER_BLOCK_COMPLETION:\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)\n if unit_id is not None and lesson_id is not None:\n self.get_course().get_progress_tracker().put_block_completed(\n student, unit_id, lesson_id, payload['index'])\n elif source in TAGS_THAT_TRIGGER_COMPONENT_COMPLETION:\n unit_id, lesson_id = get_unit_and_lesson_id_from_url("," unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)"," if unit_id is not None and lesson_id is not None:\n self.get_course().get_progress_tracker().put_block_completed(\n student, unit_id, lesson_id, payload['index'])"," self.get_course().get_progress_tracker().put_block_completed(\n student, unit_id, lesson_id, payload['index'])"," elif source in TAGS_THAT_TRIGGER_COMPONENT_COMPLETION:\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)\n cpt_id = payload['instanceid']\n if (unit_id is not None and lesson_id is not None and\n cpt_id is not None):\n self.get_course().get_progress_tracker(\n ).put_component_completed("," unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)"," cpt_id = payload['instanceid']"," if (unit_id is not None and lesson_id is not None and\n cpt_id is not None):\n self.get_course().get_progress_tracker(\n ).put_component_completed(\n student, unit_id, lesson_id, cpt_id)"," self.get_course().get_progress_tracker(\n ).put_component_completed(\n student, unit_id, lesson_id, cpt_id)"," elif source in TAGS_THAT_TRIGGER_HTML_COMPLETION:\n # Records progress for scored lessons.\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)\n course = self.get_course()\n unit = course.find_unit_by_id(unit_id)\n lesson = course.find_lesson_by_id(unit, lesson_id)\n if (unit_id is not None and"," unit_id, lesson_id = get_unit_and_lesson_id_from_url(\n self, source_url)"," course = self.get_course()"," unit = course.find_unit_by_id(unit_id)"," lesson = course.find_lesson_by_id(unit, lesson_id)"," if (unit_id is not None and\n lesson_id is not None and\n not lesson.manual_progress):\n self.get_course().get_progress_tracker().put_html_completed(\n student, unit_id, lesson_id)"," self.get_course().get_progress_tracker().put_html_completed(\n student, unit_id, lesson_id)"],"string":"[\n \"\\\"\\\"\\\"Handlers for generating various frontend pages.\\\"\\\"\\\"\",\n \"__author__ = 'Saifu Angto (saifu@google.com)'\",\n \"import copy\",\n \"import datetime\",\n \"import urllib\",\n \"import urlparse\",\n \"from utils import BaseHandler\",\n \"from utils import BaseRESTHandler\",\n \"from utils import CAN_PERSIST_ACTIVITY_EVENTS\",\n \"from utils import CAN_PERSIST_PAGE_EVENTS\",\n \"from utils import CAN_PERSIST_TAG_EVENTS\",\n \"from utils import HUMAN_READABLE_DATETIME_FORMAT\",\n \"from utils import TRANSIENT_STUDENT\",\n \"from utils import XsrfTokenManager\",\n \"from common import jinja_utils\",\n \"from common import safe_dom\",\n \"from models import courses\",\n \"from models import models\",\n \"from models import student_work\",\n \"from models import transforms\",\n \"from models.counters import PerfCounter\",\n \"from models.models import Student\",\n \"from models.models import StudentProfileDAO\",\n \"from models.review import ReviewUtils\",\n \"from models.student_work import StudentWorkUtils\",\n \"from modules import courses as courses_module\",\n \"from modules.review import domain\",\n \"from tools import verify\",\n \"from google.appengine.ext import db\",\n \"COURSE_EVENTS_RECEIVED = PerfCounter(\\n 'gcb-course-events-received',\\n 'A number of activity/assessment events received by the server.')\",\n \"COURSE_EVENTS_RECORDED = PerfCounter(\\n 'gcb-course-events-recorded',\\n 'A number of activity/assessment events recorded in a datastore.')\",\n \"UNIT_PAGE_TYPE = 'unit'\",\n \"ACTIVITY_PAGE_TYPE = 'activity'\",\n \"ASSESSMENT_PAGE_TYPE = 'assessment'\",\n \"ASSESSMENT_CONFIRMATION_PAGE_TYPE = 'test_confirmation'\",\n \"TAGS_THAT_TRIGGER_BLOCK_COMPLETION = ['attempt-activity']\",\n \"TAGS_THAT_TRIGGER_COMPONENT_COMPLETION = ['tag-assessment']\",\n \"TAGS_THAT_TRIGGER_HTML_COMPLETION = ['attempt-lesson']\",\n \"def get_first_lesson(handler, unit_id):\\n \\\"\\\"\\\"Returns the first lesson in the unit.\\\"\\\"\\\"\\n lessons = handler.get_course().get_lessons(unit_id)\\n return lessons[0] if lessons else None\",\n \" \\\"\\\"\\\"Returns the first lesson in the unit.\\\"\\\"\\\"\",\n \" lessons = handler.get_course().get_lessons(unit_id)\",\n \" return lessons[0] if lessons else None\",\n \"def _get_selected_unit_or_first_unit(handler):\\n # Finds unit requested or a first unit in the course.\\n u = handler.request.get('unit')\\n unit = handler.get_course().find_unit_by_id(u)\\n if not unit:\\n units = handler.get_course().get_units()\\n for current_unit in units:\\n if verify.UNIT_TYPE_UNIT == current_unit.type:\",\n \" u = handler.request.get('unit')\",\n \" unit = handler.get_course().find_unit_by_id(u)\",\n \" if not unit:\\n units = handler.get_course().get_units()\\n for current_unit in units:\\n if verify.UNIT_TYPE_UNIT == current_unit.type:\\n unit = current_unit\\n break\",\n \" units = handler.get_course().get_units()\",\n \" for current_unit in units:\\n if verify.UNIT_TYPE_UNIT == current_unit.type:\\n unit = current_unit\\n break\",\n \" if verify.UNIT_TYPE_UNIT == current_unit.type:\\n unit = current_unit\\n break\",\n \" unit = current_unit\",\n \" return unit\",\n \"def _get_selected_or_first_lesson(handler, unit):\\n # Find lesson requested or a first lesson in the unit.\\n l = handler.request.get('lesson')\\n lesson = None\\n if not l:\\n lesson = get_first_lesson(handler, unit.unit_id)\\n else:\\n lesson = handler.get_course().find_lesson_by_id(unit, l)\",\n \" l = handler.request.get('lesson')\",\n \" lesson = None\",\n \" if not l:\\n lesson = get_first_lesson(handler, unit.unit_id)\\n else:\\n lesson = handler.get_course().find_lesson_by_id(unit, l)\",\n \" lesson = get_first_lesson(handler, unit.unit_id)\",\n \" lesson = handler.get_course().find_lesson_by_id(unit, l)\",\n \" return lesson\",\n \"def extract_unit_and_lesson(handler):\\n \\\"\\\"\\\"Loads unit and lesson specified in the request.\\\"\\\"\\\"\\n\\n unit = _get_selected_unit_or_first_unit(handler)\\n if not unit:\\n return None, None\\n return unit, _get_selected_or_first_lesson(handler, unit)\",\n \" \\\"\\\"\\\"Loads unit and lesson specified in the request.\\\"\\\"\\\"\",\n \" unit = _get_selected_unit_or_first_unit(handler)\",\n \" if not unit:\\n return None, None\",\n \" return None, None\",\n \" return unit, _get_selected_or_first_lesson(handler, unit)\",\n \"def extract_unit_and_lesson_or_assessment(handler):\\n unit = _get_selected_unit_or_first_unit(handler)\\n if not unit:\\n return None, None, None\\n\\n lesson = None\\n lesson_id = handler.request.get('lesson')\\n if lesson_id:\",\n \" unit = _get_selected_unit_or_first_unit(handler)\",\n \" if not unit:\\n return None, None, None\",\n \" return None, None, None\",\n \" lesson = None\",\n \" lesson_id = handler.request.get('lesson')\",\n \" if lesson_id:\\n lesson = handler.get_course().find_lesson_by_id(unit, lesson_id)\",\n \" lesson = handler.get_course().find_lesson_by_id(unit, lesson_id)\",\n \" assessment = None\",\n \" assessment_id = handler.request.get('assessment')\",\n \" if assessment_id:\\n assessment = handler.get_course().find_unit_by_id(assessment_id)\",\n \" assessment = handler.get_course().find_unit_by_id(assessment_id)\",\n \" if lesson or assessment:\\n return unit, lesson, assessment\",\n \" return unit, lesson, assessment\",\n \" if unit.pre_assessment:\\n return unit, None, handler.get_course().find_unit_by_id(\\n unit.pre_assessment)\",\n \" return unit, None, handler.get_course().find_unit_by_id(\\n unit.pre_assessment)\",\n \" first_lesson = get_first_lesson(handler, unit.unit_id)\",\n \" if first_lesson:\\n return unit, first_lesson, None\",\n \" return unit, first_lesson, None\",\n \" if unit.post_assessment:\\n return unit, None, handler.get_course().find_unit_by_id(\\n unit.post_assessment)\",\n \" return unit, None, handler.get_course().find_unit_by_id(\\n unit.post_assessment)\",\n \" return unit, None, None\",\n \"def get_unit_and_lesson_id_from_url(handler, url):\\n \\\"\\\"\\\"Extracts unit and lesson ids from a URL.\\\"\\\"\\\"\\n url_components = urlparse.urlparse(url)\\n query_dict = urlparse.parse_qs(url_components.query)\\n\\n if 'unit' not in query_dict:\\n return None, None\",\n \" \\\"\\\"\\\"Extracts unit and lesson ids from a URL.\\\"\\\"\\\"\",\n \" url_components = urlparse.urlparse(url)\",\n \" query_dict = urlparse.parse_qs(url_components.query)\",\n \" if 'unit' not in query_dict:\\n return None, None\",\n \" return None, None\",\n \" unit_id = query_dict['unit'][0]\",\n \" lesson_id = None\",\n \" if 'lesson' in query_dict:\\n lesson_id = query_dict['lesson'][0]\\n else:\\n lesson_id = get_first_lesson(handler, unit_id).lesson_id\",\n \" lesson_id = query_dict['lesson'][0]\",\n \" lesson_id = get_first_lesson(handler, unit_id).lesson_id\",\n \" return unit_id, lesson_id\",\n \"def create_readonly_assessment_params(content, answers):\\n \\\"\\\"\\\"Creates parameters for a readonly assessment in the view templates.\\\"\\\"\\\"\\n assessment_params = {\\n 'preamble': content['assessment']['preamble'],\\n 'questionsList': content['assessment']['questionsList'],\\n 'answers': answers,\\n }\\n return assessment_params\",\n \" \\\"\\\"\\\"Creates parameters for a readonly assessment in the view templates.\\\"\\\"\\\"\",\n \" assessment_params = {\\n 'preamble': content['assessment']['preamble'],\\n 'questionsList': content['assessment']['questionsList'],\\n 'answers': answers,\\n }\",\n \" return assessment_params\",\n \"def filter_assessments_used_within_units(units):\\n # Remove assessments that are to be treated as if they were in a unit.\\n referenced_assessments = set()\\n for unit in units:\\n if unit.type == verify.UNIT_TYPE_UNIT:\\n if unit.pre_assessment:\\n referenced_assessments.add(unit.pre_assessment)\\n if unit.post_assessment:\",\n \" referenced_assessments = set()\",\n \" for unit in units:\\n if unit.type == verify.UNIT_TYPE_UNIT:\\n if unit.pre_assessment:\\n referenced_assessments.add(unit.pre_assessment)\\n if unit.post_assessment:\\n referenced_assessments.add(unit.post_assessment)\",\n \" if unit.type == verify.UNIT_TYPE_UNIT:\\n if unit.pre_assessment:\\n referenced_assessments.add(unit.pre_assessment)\\n if unit.post_assessment:\\n referenced_assessments.add(unit.post_assessment)\",\n \" if unit.pre_assessment:\\n referenced_assessments.add(unit.pre_assessment)\",\n \" referenced_assessments.add(unit.pre_assessment)\",\n \" if unit.post_assessment:\\n referenced_assessments.add(unit.post_assessment)\",\n \" referenced_assessments.add(unit.post_assessment)\",\n \" ret = []\",\n \" for unit in list(units):\\n if unit.unit_id not in referenced_assessments:\\n ret.append(unit)\",\n \" if unit.unit_id not in referenced_assessments:\\n ret.append(unit)\",\n \" ret.append(unit)\",\n \" return ret\",\n \"def augment_assessment_units(course, student):\\n \\\"\\\"\\\"Adds additional fields to assessment units.\\\"\\\"\\\"\\n rp = course.get_reviews_processor()\\n\\n for unit in course.get_units():\\n if unit.type == 'A':\\n if unit.needs_human_grader():\\n review_steps = rp.get_review_steps_by(\",\n \" \\\"\\\"\\\"Adds additional fields to assessment units.\\\"\\\"\\\"\",\n \" rp = course.get_reviews_processor()\",\n \" for unit in course.get_units():\\n if unit.type == 'A':\\n if unit.needs_human_grader():\\n review_steps = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\\n review_min_count = unit.workflow.get_review_min_count()\\n\\n unit.matcher = unit.workflow.get_matcher()\",\n \" if unit.type == 'A':\\n if unit.needs_human_grader():\\n review_steps = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\\n review_min_count = unit.workflow.get_review_min_count()\\n\\n unit.matcher = unit.workflow.get_matcher()\\n unit.review_progress = ReviewUtils.get_review_progress(\",\n \" if unit.needs_human_grader():\\n review_steps = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\\n review_min_count = unit.workflow.get_review_min_count()\\n\\n unit.matcher = unit.workflow.get_matcher()\\n unit.review_progress = ReviewUtils.get_review_progress(\\n review_steps, review_min_count,\",\n \" review_steps = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\",\n \" review_min_count = unit.workflow.get_review_min_count()\",\n \" unit.matcher = unit.workflow.get_matcher()\",\n \" unit.review_progress = ReviewUtils.get_review_progress(\\n review_steps, review_min_count,\\n course.get_progress_tracker()\\n )\",\n \" unit.is_submitted = rp.does_submission_exist(\\n unit.unit_id, student.get_key())\",\n \"def is_progress_recorded(handler, student):\\n if student.is_transient:\\n return False\\n if CAN_PERSIST_ACTIVITY_EVENTS:\\n return True\\n course = handler.get_course()\\n units = handler.get_track_matching_student(student)\\n for unit in units:\",\n \" if student.is_transient:\\n return False\",\n \" return False\",\n \" if CAN_PERSIST_ACTIVITY_EVENTS:\\n return True\",\n \" return True\",\n \" course = handler.get_course()\",\n \" units = handler.get_track_matching_student(student)\",\n \" for unit in units:\\n if unit.manual_progress:\\n return True\\n for lesson in course.get_lessons(unit.unit_id):\\n if lesson.manual_progress:\\n return True\",\n \" if unit.manual_progress:\\n return True\",\n \" return True\",\n \" for lesson in course.get_lessons(unit.unit_id):\\n if lesson.manual_progress:\\n return True\",\n \" if lesson.manual_progress:\\n return True\",\n \" return True\",\n \" return False\",\n \"def add_course_outline_to_template(handler, student):\\n \\\"\\\"\\\"Adds course outline with all units, lessons, progress to the template.\\\"\\\"\\\"\\n _tracker = handler.get_progress_tracker()\\n if student and not student.is_transient:\\n augment_assessment_units(handler.get_course(), student)\\n handler.template_value['course_progress'] = (\\n _tracker.get_course_progress(student))\",\n \" \\\"\\\"\\\"Adds course outline with all units, lessons, progress to the template.\\\"\\\"\\\"\",\n \" _tracker = handler.get_progress_tracker()\",\n \" if student and not student.is_transient:\\n augment_assessment_units(handler.get_course(), student)\\n handler.template_value['course_progress'] = (\\n _tracker.get_course_progress(student))\",\n \" augment_assessment_units(handler.get_course(), student)\",\n \" handler.template_value['course_progress'] = (\\n _tracker.get_course_progress(student))\",\n \" _tuples = []\",\n \" units = handler.get_track_matching_student(student)\",\n \" units = filter_assessments_used_within_units(units)\",\n \" progress = _tracker.get_or_create_progress(\\n student) if is_progress_recorded(handler, student) else None\",\n \" for _unit in units:\\n _lessons = handler.get_lessons(_unit.unit_id)\\n _lesson_progress = None\\n if progress:\\n _lesson_progress = _tracker.get_lesson_progress(\\n student, _unit.unit_id, progress=progress)\\n pre_assessment = None\\n if _unit.pre_assessment:\",\n \" _lessons = handler.get_lessons(_unit.unit_id)\",\n \" _lesson_progress = None\",\n \" if progress:\\n _lesson_progress = _tracker.get_lesson_progress(\\n student, _unit.unit_id, progress=progress)\",\n \" _lesson_progress = _tracker.get_lesson_progress(\\n student, _unit.unit_id, progress=progress)\",\n \" pre_assessment = None\",\n \" if _unit.pre_assessment:\\n pre_assessment = handler.find_unit_by_id(_unit.pre_assessment)\",\n \" pre_assessment = handler.find_unit_by_id(_unit.pre_assessment)\",\n \" post_assessment = None\",\n \" if _unit.post_assessment:\\n post_assessment = handler.find_unit_by_id(_unit.post_assessment)\",\n \" post_assessment = handler.find_unit_by_id(_unit.post_assessment)\",\n \" _tuple = (_unit, _lessons, _lesson_progress,\\n pre_assessment, post_assessment)\",\n \" _tuples.append(_tuple)\",\n \" handler.template_value['course_outline'] = _tuples\",\n \" handler.template_value['unit_progress'] = _tracker.get_unit_progress(\\n student, progress=progress)\",\n \"class CourseHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for generating course page.\\\"\\\"\\\"\\n\\n @classmethod\\n def get_child_routes(cls):\\n \\\"\\\"\\\"Add child handlers for REST.\\\"\\\"\\\"\\n return [('/rest/events', EventsRESTHandler)]\",\n \" \\\"\\\"\\\"Handler for generating course page.\\\"\\\"\\\"\",\n \" def get_child_routes(cls):\\n \\\"\\\"\\\"Add child handlers for REST.\\\"\\\"\\\"\\n return [('/rest/events', EventsRESTHandler)]\",\n \" \\\"\\\"\\\"Add child handlers for REST.\\\"\\\"\\\"\",\n \" return [('/rest/events', EventsRESTHandler)]\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n models.MemcacheManager.begin_readonly()\\n try:\\n user = self.personalize_page_and_get_user()\\n if user is None:\\n student = TRANSIENT_STUDENT\\n else:\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" models.MemcacheManager.begin_readonly()\",\n \" try:\\n user = self.personalize_page_and_get_user()\\n if user is None:\\n student = TRANSIENT_STUDENT\\n else:\\n student = Student.get_enrolled_student_by_email(user.email())\\n profile = StudentProfileDAO.get_profile_by_user_id(\\n user.user_id())\",\n \" user = self.personalize_page_and_get_user()\",\n \" if user is None:\\n student = TRANSIENT_STUDENT\\n else:\\n student = Student.get_enrolled_student_by_email(user.email())\\n profile = StudentProfileDAO.get_profile_by_user_id(\\n user.user_id())\\n self.template_value['has_global_profile'] = profile is not None\\n if not student:\",\n \" student = TRANSIENT_STUDENT\",\n \" student = Student.get_enrolled_student_by_email(user.email())\",\n \" profile = StudentProfileDAO.get_profile_by_user_id(\\n user.user_id())\",\n \" self.template_value['has_global_profile'] = profile is not None\",\n \" if not student:\\n student = TRANSIENT_STUDENT\",\n \" student = TRANSIENT_STUDENT\",\n \" if (student.is_transient and\\n not self.app_context.get_environ()['course']['browsable']):\\n self.redirect('/preview')\\n return\",\n \" self.redirect('/preview')\",\n \" return\",\n \" last_location = self.get_redirect_location(student)\",\n \" if last_location:\\n self.redirect(last_location)\\n return\",\n \" self.redirect(last_location)\",\n \" return\",\n \" tracker = self.get_progress_tracker()\",\n \" units = self.get_track_matching_student(student)\",\n \" units = filter_assessments_used_within_units(units)\",\n \" self.template_value['units'] = units\",\n \" self.template_value['show_registration_page'] = True\",\n \" if student and not student.is_transient:\\n augment_assessment_units(self.get_course(), student)\\n self.template_value['course_progress'] = (\\n tracker.get_course_progress(student))\\n elif user:\\n profile = StudentProfileDAO.get_profile_by_user_id(\\n user.user_id())\\n additional_registration_fields = self.app_context.get_environ(\",\n \" augment_assessment_units(self.get_course(), student)\",\n \" self.template_value['course_progress'] = (\\n tracker.get_course_progress(student))\",\n \" elif user:\\n profile = StudentProfileDAO.get_profile_by_user_id(\\n user.user_id())\\n additional_registration_fields = self.app_context.get_environ(\\n )['reg_form']['additional_registration_fields']\\n if profile is not None and not additional_registration_fields:\\n self.template_value['show_registration_page'] = False\\n self.template_value['register_xsrf_token'] = (\",\n \" profile = StudentProfileDAO.get_profile_by_user_id(\\n user.user_id())\",\n \" additional_registration_fields = self.app_context.get_environ(\\n )['reg_form']['additional_registration_fields']\",\n \" if profile is not None and not additional_registration_fields:\\n self.template_value['show_registration_page'] = False\\n self.template_value['register_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('register-post'))\",\n \" self.template_value['show_registration_page'] = False\",\n \" self.template_value['register_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('register-post'))\",\n \" self.template_value['transient_student'] = student.is_transient\",\n \" self.template_value['progress'] = tracker.get_unit_progress(student)\",\n \" course = self.app_context.get_environ()['course']\",\n \" self.template_value['video_exists'] = bool(\\n 'main_video' in course and\\n 'url' in course['main_video'] and\\n course['main_video']['url'])\",\n \" self.template_value['image_exists'] = bool(\\n 'main_image' in course and\\n 'url' in course['main_image'] and\\n course['main_image']['url'])\",\n \" self.template_value['is_progress_recorded'] = is_progress_recorded(\\n self, student)\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" models.MemcacheManager.end_readonly()\",\n \" self.render('course.html')\",\n \"class UnitHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for generating unit page.\\\"\\\"\\\"\\n\\n # A list of callback functions which modules can use to add extra content\\n # panels at the bottom of the page. Each function receives the app_context\\n # as its single arg, and should return a string or None.\\n EXTRA_CONTENT = []\",\n \" \\\"\\\"\\\"Handler for generating unit page.\\\"\\\"\\\"\",\n \" EXTRA_CONTENT = []\",\n \" _LESSON_TITLE_PROVIDER = None\",\n \" class UnitLeftNavElements(object):\\n\\n def __init__(self, course, unit):\\n self._urls = []\\n self._index_by_label = {}\\n\\n if unit.pre_assessment:\\n self._index_by_label['assessment.%d' % unit.pre_assessment] = (\",\n \" def __init__(self, course, unit):\\n self._urls = []\\n self._index_by_label = {}\\n\\n if unit.pre_assessment:\\n self._index_by_label['assessment.%d' % unit.pre_assessment] = (\\n len(self._urls))\\n self._urls.append('unit?unit=%s&assessment=%d' % (\",\n \" self._urls = []\",\n \" self._index_by_label = {}\",\n \" if unit.pre_assessment:\\n self._index_by_label['assessment.%d' % unit.pre_assessment] = (\\n len(self._urls))\\n self._urls.append('unit?unit=%s&assessment=%d' % (\\n unit.unit_id, unit.pre_assessment))\",\n \" self._index_by_label['assessment.%d' % unit.pre_assessment] = (\\n len(self._urls))\",\n \" self._urls.append('unit?unit=%s&assessment=%d' % (\\n unit.unit_id, unit.pre_assessment))\",\n \" for lesson in course.get_lessons(unit.unit_id):\\n self._index_by_label['lesson.%s' % lesson.lesson_id] = (\\n len(self._urls))\\n self._urls.append('unit?unit=%s&lesson=%s' % (\\n unit.unit_id, lesson.lesson_id))\\n\\n if lesson.activity and lesson.activity_listed:\\n self._index_by_label['activity.%s' % lesson.lesson_id] = (\",\n \" self._index_by_label['lesson.%s' % lesson.lesson_id] = (\\n len(self._urls))\",\n \" self._urls.append('unit?unit=%s&lesson=%s' % (\\n unit.unit_id, lesson.lesson_id))\",\n \" if lesson.activity and lesson.activity_listed:\\n self._index_by_label['activity.%s' % lesson.lesson_id] = (\\n len(self._urls))\\n self._urls.append('unit?unit=%s&lesson=%s&activity=true' % (\\n unit.unit_id, lesson.lesson_id))\",\n \" self._index_by_label['activity.%s' % lesson.lesson_id] = (\\n len(self._urls))\",\n \" self._urls.append('unit?unit=%s&lesson=%s&activity=true' % (\\n unit.unit_id, lesson.lesson_id))\",\n \" if unit.post_assessment:\\n self._index_by_label['assessment.%d' % unit.post_assessment] = (\\n len(self._urls))\\n self._urls.append('unit?unit=%s&assessment=%d' % (\\n unit.unit_id, unit.post_assessment))\",\n \" self._index_by_label['assessment.%d' % unit.post_assessment] = (\\n len(self._urls))\",\n \" self._urls.append('unit?unit=%s&assessment=%d' % (\\n unit.unit_id, unit.post_assessment))\",\n \" def get_url_by(self, item_type, item_id, offset):\\n index = self._index_by_label['%s.%s' % (item_type, item_id)]\\n index += offset\\n if index >= 0 and index < len(self._urls):\\n return self._urls[index]\\n else:\\n return None\",\n \" index = self._index_by_label['%s.%s' % (item_type, item_id)]\",\n \" if index >= 0 and index < len(self._urls):\\n return self._urls[index]\\n else:\\n return None\",\n \" return self._urls[index]\",\n \" return None\",\n \" def set_lesson_title_provider(cls, lesson_title_provider):\\n if cls._LESSON_TITLE_PROVIDER:\\n raise Exception('Lesson title provider already set by a module')\\n cls._LESSON_TITLE_PROVIDER = lesson_title_provider\",\n \" if cls._LESSON_TITLE_PROVIDER:\\n raise Exception('Lesson title provider already set by a module')\",\n \" cls._LESSON_TITLE_PROVIDER = lesson_title_provider\",\n \" def _default_lesson_title_provider(\\n self, app_context, unit, lesson, unused_student):\\n title_h1 = safe_dom.Element(\\n 'h1', className='gcb-lesson-title').add_text(lesson.title)\\n can_see_drafts = courses_module.courses.can_see_drafts(self.app_context)\\n if not lesson.now_available and can_see_drafts:\\n title_h1.add_text(' ').add_child(\\n safe_dom.Element('span', id='lesson-title-private').add_text(\",\n \" title_h1 = safe_dom.Element(\\n 'h1', className='gcb-lesson-title').add_text(lesson.title)\",\n \" can_see_drafts = courses_module.courses.can_see_drafts(self.app_context)\",\n \" if not lesson.now_available and can_see_drafts:\\n title_h1.add_text(' ').add_child(\\n safe_dom.Element('span', id='lesson-title-private').add_text(\\n '(Private)'))\",\n \" title_h1.add_text(' ').add_child(\\n safe_dom.Element('span', id='lesson-title-private').add_text(\\n '(Private)'))\",\n \" return safe_dom.Element('div', className='lesson-title').add_child(\\n title_h1)\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n models.MemcacheManager.begin_readonly()\\n try:\\n student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\\n if not student:\\n return\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" models.MemcacheManager.begin_readonly()\",\n \" try:\\n student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\\n if not student:\\n return\\n\\n # Extract incoming args\\n unit, lesson, assessment = extract_unit_and_lesson_or_assessment(\",\n \" student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\",\n \" if not student:\\n return\",\n \" return\",\n \" unit, lesson, assessment = extract_unit_and_lesson_or_assessment(\\n self)\",\n \" unit_id = unit.unit_id\",\n \" available_units = self.get_track_matching_student(student)\",\n \" if ((not unit.now_available or unit not in available_units) and\\n not courses_module.courses.can_see_drafts(self.app_context)):\\n self.redirect('/')\\n return\",\n \" self.redirect('/')\",\n \" return\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" self.template_value['unit'] = unit\",\n \" self.template_value['unit_id'] = unit.unit_id\",\n \" self.student = student\",\n \" self.unit_id = unit_id\",\n \" add_course_outline_to_template(self, student)\",\n \" self.template_value['is_progress_recorded'] = is_progress_recorded(\\n self, student)\",\n \" if (unit.show_contents_on_one_page and\\n 'confirmation' not in self.request.params):\\n self._show_all_contents(student, unit)\\n else:\\n self._show_single_element(student, unit, lesson, assessment)\",\n \" self._show_all_contents(student, unit)\",\n \" self._show_single_element(student, unit, lesson, assessment)\",\n \" for extra_content_hook in self.EXTRA_CONTENT:\\n extra_content = extra_content_hook(self.app_context)\\n if extra_content is not None:\\n self.template_value['display_content'].append(extra_content)\",\n \" extra_content = extra_content_hook(self.app_context)\",\n \" if extra_content is not None:\\n self.template_value['display_content'].append(extra_content)\",\n \" self.template_value['display_content'].append(extra_content)\",\n \" self._set_gcb_html_element_class()\",\n \" models.MemcacheManager.end_readonly()\",\n \" self.render('unit.html')\",\n \" def _set_gcb_html_element_class(self):\\n \\\"\\\"\\\"Select conditional CSS to hide parts of the unit page.\\\"\\\"\\\"\\n\\n # TODO(jorr): Add an integration test for this once, LTI producer and\\n # consumer code is completely checked in.\\n\\n gcb_html_element_class = []\",\n \" \\\"\\\"\\\"Select conditional CSS to hide parts of the unit page.\\\"\\\"\\\"\",\n \" gcb_html_element_class = []\",\n \" if self.request.get('hide-controls') == 'true':\\n gcb_html_element_class.append('hide-controls')\",\n \" gcb_html_element_class.append('hide-controls')\",\n \" if self.request.get('hide-lesson-title') == 'true':\\n gcb_html_element_class.append('hide-lesson-title')\",\n \" gcb_html_element_class.append('hide-lesson-title')\",\n \" self.template_value['gcb_html_element_class'] = (\\n ' '.join(gcb_html_element_class))\",\n \" def _apply_gcb_tags(self, text):\\n return jinja_utils.get_gcb_tags_filter(self)(text)\",\n \" return jinja_utils.get_gcb_tags_filter(self)(text)\",\n \" def _show_all_contents(self, student, unit):\\n course = self.get_course()\\n display_content = []\\n left_nav_elements = UnitHandler.UnitLeftNavElements(\\n self.get_course(), unit)\\n\\n if unit.unit_header:\\n display_content.append(self._apply_gcb_tags(unit.unit_header))\",\n \" course = self.get_course()\",\n \" display_content = []\",\n \" left_nav_elements = UnitHandler.UnitLeftNavElements(\\n self.get_course(), unit)\",\n \" if unit.unit_header:\\n display_content.append(self._apply_gcb_tags(unit.unit_header))\",\n \" display_content.append(self._apply_gcb_tags(unit.unit_header))\",\n \" if unit.pre_assessment:\\n display_content.append(self.get_assessment_display_content(\\n student, unit, course.find_unit_by_id(unit.pre_assessment),\\n left_nav_elements, {}))\",\n \" display_content.append(self.get_assessment_display_content(\\n student, unit, course.find_unit_by_id(unit.pre_assessment),\\n left_nav_elements, {}))\",\n \" for lesson in course.get_lessons(unit.unit_id):\\n self.lesson_id = lesson.lesson_id\\n self.lesson_is_scored = lesson.scored\\n template_values = copy.copy(self.template_value)\\n self.set_lesson_content(student, unit, lesson, left_nav_elements,\\n template_values)\\n display_content.append(self.render_template_to_html(\\n template_values, 'lesson_common.html'))\",\n \" self.lesson_id = lesson.lesson_id\",\n \" self.lesson_is_scored = lesson.scored\",\n \" template_values = copy.copy(self.template_value)\",\n \" self.set_lesson_content(student, unit, lesson, left_nav_elements,\\n template_values)\",\n \" display_content.append(self.render_template_to_html(\\n template_values, 'lesson_common.html'))\",\n \" if unit.post_assessment:\\n display_content.append(self.get_assessment_display_content(\\n student, unit, course.find_unit_by_id(unit.post_assessment),\\n left_nav_elements, {}))\",\n \" display_content.append(self.get_assessment_display_content(\\n student, unit, course.find_unit_by_id(unit.post_assessment),\\n left_nav_elements, {}))\",\n \" if unit.unit_footer:\\n display_content.append(self._apply_gcb_tags(unit.unit_footer))\",\n \" display_content.append(self._apply_gcb_tags(unit.unit_footer))\",\n \" self.template_value['display_content'] = display_content\",\n \" def _showing_first_element(self, unit, lesson, assessment, is_activity):\\n \\\"\\\"\\\"Whether the unit page is showing the first element of a Unit.\\\"\\\"\\\"\\n\\n # If the unit has a pre-assessment, then that's the first element;\\n # we are showing the first element iff we are showing that assessment.\\n if unit.pre_assessment:\\n return (assessment and\\n str(assessment.unit_id) == str(unit.pre_assessment))\",\n \" \\\"\\\"\\\"Whether the unit page is showing the first element of a Unit.\\\"\\\"\\\"\",\n \" if unit.pre_assessment:\\n return (assessment and\\n str(assessment.unit_id) == str(unit.pre_assessment))\",\n \" return (assessment and\\n str(assessment.unit_id) == str(unit.pre_assessment))\",\n \" unit_lessons = self.get_course().get_lessons(unit.unit_id)\",\n \" if unit_lessons:\\n if lesson and lesson.lesson_id == unit_lessons[0].lesson_id:\\n # If the first lesson has an activity, then we are showing\\n # the first element if we are showing the lesson, and not\\n # the activity.\\n return not is_activity\\n return False\",\n \" if lesson and lesson.lesson_id == unit_lessons[0].lesson_id:\\n # If the first lesson has an activity, then we are showing\\n # the first element if we are showing the lesson, and not\\n # the activity.\\n return not is_activity\",\n \" return not is_activity\",\n \" return False\",\n \" if unit.post_assessment:\\n return (assessment and\\n str(assessment.unit_id) == str(unit.post_assessment))\",\n \" return (assessment and\\n str(assessment.unit_id) == str(unit.post_assessment))\",\n \" if (not unit.pre_assessment and\\n not unit.post_assessment and\\n not unit_lessons):\\n\\n return True\",\n \" return True\",\n \" return False\",\n \" def _showing_last_element(self, unit, lesson, assessment, is_activity):\\n \\\"\\\"\\\"Whether the unit page is showing the last element of a Unit.\\\"\\\"\\\"\\n\\n # If the unit has a post-assessment, then that's the last element;\\n # we are showing the last element iff we are showing that assessment.\\n if unit.post_assessment:\\n return (assessment and\\n str(assessment.unit_id) == str(unit.post_assessment))\",\n \" \\\"\\\"\\\"Whether the unit page is showing the last element of a Unit.\\\"\\\"\\\"\",\n \" if unit.post_assessment:\\n return (assessment and\\n str(assessment.unit_id) == str(unit.post_assessment))\",\n \" return (assessment and\\n str(assessment.unit_id) == str(unit.post_assessment))\",\n \" unit_lessons = self.get_course().get_lessons(unit.unit_id)\",\n \" if unit_lessons:\\n if lesson and lesson.lesson_id == unit_lessons[-1].lesson_id:\\n # If the lesson has an activity, and we're showing the\\n # activity, that's last.\\n return is_activity == lesson.has_activity\\n return False\",\n \" if lesson and lesson.lesson_id == unit_lessons[-1].lesson_id:\\n # If the lesson has an activity, and we're showing the\\n # activity, that's last.\\n return is_activity == lesson.has_activity\",\n \" return is_activity == lesson.has_activity\",\n \" return False\",\n \" if unit.pre_assessment:\\n return (assessment and\\n str(assessment.unit_id) == str(unit.pre_assessment))\",\n \" return (assessment and\\n str(assessment.unit_id) == str(unit.pre_assessment))\",\n \" if (not unit.pre_assessment and\\n not unit.post_assessment and\\n not unit_lessons):\\n\\n return True\",\n \" return True\",\n \" return False\",\n \" def _show_single_element(self, student, unit, lesson, assessment):\\n # Add markup to page which depends on the kind of content.\\n left_nav_elements = UnitHandler.UnitLeftNavElements(\\n self.get_course(), unit)\\n\\n # need 'activity' to be True or False, and not the string 'true' or None\\n is_activity = (self.request.get('activity') != '' or\\n '/activity' in self.request.path)\",\n \" left_nav_elements = UnitHandler.UnitLeftNavElements(\\n self.get_course(), unit)\",\n \" is_activity = (self.request.get('activity') != '' or\\n '/activity' in self.request.path)\",\n \" display_content = []\",\n \" if (unit.unit_header and\\n self._showing_first_element(unit, lesson, assessment, is_activity)):\\n\\n display_content.append(self._apply_gcb_tags(unit.unit_header))\",\n \" display_content.append(self._apply_gcb_tags(unit.unit_header))\",\n \" if assessment:\\n if 'confirmation' in self.request.params:\\n self.set_confirmation_content(student, unit, assessment,\\n left_nav_elements)\\n self.template_value['assessment_name'] = (\\n self.template_value.get('assessment_name').lower())\\n display_content.append(self.render_template_to_html(\\n self.template_value, 'test_confirmation_content.html'))\",\n \" if 'confirmation' in self.request.params:\\n self.set_confirmation_content(student, unit, assessment,\\n left_nav_elements)\\n self.template_value['assessment_name'] = (\\n self.template_value.get('assessment_name').lower())\\n display_content.append(self.render_template_to_html(\\n self.template_value, 'test_confirmation_content.html'))\\n else:\",\n \" self.set_confirmation_content(student, unit, assessment,\\n left_nav_elements)\",\n \" self.template_value['assessment_name'] = (\\n self.template_value.get('assessment_name').lower())\",\n \" display_content.append(self.render_template_to_html(\\n self.template_value, 'test_confirmation_content.html'))\",\n \" display_content.append(self.get_assessment_display_content(\\n student, unit, assessment, left_nav_elements,\\n self.template_value))\",\n \" elif lesson:\\n self.lesson_id = lesson.lesson_id\\n self.lesson_is_scored = lesson.scored\\n if is_activity:\\n self.set_activity_content(student, unit, lesson,\\n left_nav_elements)\\n else:\\n self.set_lesson_content(student, unit, lesson,\",\n \" self.lesson_id = lesson.lesson_id\",\n \" self.lesson_is_scored = lesson.scored\",\n \" if is_activity:\\n self.set_activity_content(student, unit, lesson,\\n left_nav_elements)\\n else:\\n self.set_lesson_content(student, unit, lesson,\\n left_nav_elements, self.template_value)\",\n \" self.set_activity_content(student, unit, lesson,\\n left_nav_elements)\",\n \" self.set_lesson_content(student, unit, lesson,\\n left_nav_elements, self.template_value)\",\n \" display_content.append(self.render_template_to_html(\\n self.template_value, 'lesson_common.html'))\",\n \" if (unit.unit_footer and\\n self._showing_last_element(unit, lesson, assessment, is_activity)):\\n\\n display_content.append(self._apply_gcb_tags(unit.unit_footer))\",\n \" display_content.append(self._apply_gcb_tags(unit.unit_footer))\",\n \" self.template_value['display_content'] = display_content\",\n \" def get_assessment_display_content(self, student, unit, assessment,\\n left_nav_elements, template_values):\\n template_values['page_type'] = ASSESSMENT_PAGE_TYPE\\n template_values['assessment'] = assessment\\n template_values['back_button_url'] = left_nav_elements.get_url_by(\\n 'assessment', assessment.unit_id, -1)\\n template_values['next_button_url'] = left_nav_elements.get_url_by(\\n 'assessment', assessment.unit_id, 1)\",\n \" template_values['page_type'] = ASSESSMENT_PAGE_TYPE\",\n \" template_values['assessment'] = assessment\",\n \" template_values['back_button_url'] = left_nav_elements.get_url_by(\\n 'assessment', assessment.unit_id, -1)\",\n \" template_values['next_button_url'] = left_nav_elements.get_url_by(\\n 'assessment', assessment.unit_id, 1)\",\n \" assessment_handler = AssessmentHandler()\",\n \" assessment_handler.app_context = self.app_context\",\n \" assessment_handler.request = self.request\",\n \" return assessment_handler.get_assessment_content(\\n student, self.get_course(), assessment, as_lesson=True)\",\n \" def set_confirmation_content(self, student, unit, assessment,\\n left_nav_elements):\\n course = self.get_course()\\n self.template_value['page_type'] = ASSESSMENT_CONFIRMATION_PAGE_TYPE\\n self.template_value['unit'] = unit\\n self.template_value['assessment'] = assessment\\n self.template_value['is_confirmation'] = True\\n self.template_value['assessment_name'] = assessment.title\",\n \" course = self.get_course()\",\n \" self.template_value['page_type'] = ASSESSMENT_CONFIRMATION_PAGE_TYPE\",\n \" self.template_value['unit'] = unit\",\n \" self.template_value['assessment'] = assessment\",\n \" self.template_value['is_confirmation'] = True\",\n \" self.template_value['assessment_name'] = assessment.title\",\n \" self.template_value['score'] = (\\n course.get_score(student, str(assessment.unit_id)))\",\n \" self.template_value['is_last_assessment'] = (\\n course.is_last_assessment(assessment))\",\n \" self.template_value['overall_score'] = (\\n course.get_overall_score(student))\",\n \" self.template_value['result'] = course.get_overall_result(student)\",\n \" self.template_value['back_button_url'] = left_nav_elements.get_url_by(\\n 'assessment', assessment.unit_id, 0)\",\n \" self.template_value['next_button_url'] = left_nav_elements.get_url_by(\\n 'assessment', assessment.unit_id, 1)\",\n \" def set_activity_content(self, student, unit, lesson, left_nav_elements):\\n self.template_value['page_type'] = ACTIVITY_PAGE_TYPE\\n self.template_value['lesson'] = lesson\\n self.template_value['lesson_id'] = lesson.lesson_id\\n self.template_value['back_button_url'] = left_nav_elements.get_url_by(\\n 'activity', lesson.lesson_id, -1)\\n self.template_value['next_button_url'] = left_nav_elements.get_url_by(\\n 'activity', lesson.lesson_id, 1)\",\n \" self.template_value['page_type'] = ACTIVITY_PAGE_TYPE\",\n \" self.template_value['lesson'] = lesson\",\n \" self.template_value['lesson_id'] = lesson.lesson_id\",\n \" self.template_value['back_button_url'] = left_nav_elements.get_url_by(\\n 'activity', lesson.lesson_id, -1)\",\n \" self.template_value['next_button_url'] = left_nav_elements.get_url_by(\\n 'activity', lesson.lesson_id, 1)\",\n \" self.template_value['activity'] = {\\n 'title': lesson.activity_title,\\n 'activity_script_src': (\\n self.get_course().get_activity_filename(unit.unit_id,\\n lesson.lesson_id))}\",\n \" self.template_value['page_type'] = 'activity'\",\n \" self.template_value['title'] = lesson.activity_title\",\n \" if is_progress_recorded(self, student):\\n # Mark this page as accessed. This is done after setting the\\n # student progress template value, so that the mark only shows up\\n # after the student visits the page for the first time.\\n self.get_course().get_progress_tracker().put_activity_accessed(\\n student, unit.unit_id, lesson.lesson_id)\",\n \" self.get_course().get_progress_tracker().put_activity_accessed(\\n student, unit.unit_id, lesson.lesson_id)\",\n \" def _get_lesson_title(self, unit, lesson, student):\\n title = None\\n if self._LESSON_TITLE_PROVIDER:\\n title = self._LESSON_TITLE_PROVIDER(\\n self.app_context, unit, lesson, student)\\n if title is None:\\n title = self._default_lesson_title_provider(\\n self.app_context, unit, lesson, student)\",\n \" title = None\",\n \" if self._LESSON_TITLE_PROVIDER:\\n title = self._LESSON_TITLE_PROVIDER(\\n self.app_context, unit, lesson, student)\",\n \" title = self._LESSON_TITLE_PROVIDER(\\n self.app_context, unit, lesson, student)\",\n \" if title is None:\\n title = self._default_lesson_title_provider(\\n self.app_context, unit, lesson, student)\",\n \" title = self._default_lesson_title_provider(\\n self.app_context, unit, lesson, student)\",\n \" return title\",\n \" def set_lesson_content(self, student, unit, lesson, left_nav_elements,\\n template_values):\\n template_values['page_type'] = UNIT_PAGE_TYPE\\n template_values['lesson'] = lesson\\n template_values['lesson_id'] = lesson.lesson_id\\n template_values['back_button_url'] = left_nav_elements.get_url_by(\\n 'lesson', lesson.lesson_id, -1)\\n template_values['next_button_url'] = left_nav_elements.get_url_by(\",\n \" template_values['page_type'] = UNIT_PAGE_TYPE\",\n \" template_values['lesson'] = lesson\",\n \" template_values['lesson_id'] = lesson.lesson_id\",\n \" template_values['back_button_url'] = left_nav_elements.get_url_by(\\n 'lesson', lesson.lesson_id, -1)\",\n \" template_values['next_button_url'] = left_nav_elements.get_url_by(\\n 'lesson', lesson.lesson_id, 1)\",\n \" template_values['page_type'] = 'unit'\",\n \" template_values['title'] = self._get_lesson_title(unit, lesson, student)\",\n \" if not lesson.manual_progress and is_progress_recorded(self, student):\\n # Mark this page as accessed. This is done after setting the\\n # student progress template value, so that the mark only shows up\\n # after the student visits the page for the first time.\\n self.get_course().get_progress_tracker().put_html_accessed(\\n student, unit.unit_id, lesson.lesson_id)\",\n \" self.get_course().get_progress_tracker().put_html_accessed(\\n student, unit.unit_id, lesson.lesson_id)\",\n \"class AssessmentHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for generating assessment page.\\\"\\\"\\\"\\n\\n # pylint: disable=too-many-statements\\n def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\",\n \" \\\"\\\"\\\"Handler for generating assessment page.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\\n if not student:\\n return\\n\\n # Extract incoming args, binding to self if needed.\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\",\n \" if not student:\\n return\",\n \" return\",\n \" assessment_name = self.request.get('name')\",\n \" self.unit_id = assessment_name\",\n \" course = self.get_course()\",\n \" unit = course.find_unit_by_id(self.unit_id)\",\n \" if not unit:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" parent_unit = course.get_parent_unit(self.unit_id)\",\n \" if parent_unit:\\n self.redirect('/unit?unit=%s&assessment=%s' %\\n (parent_unit.unit_id, self.unit_id))\\n return\",\n \" self.redirect('/unit?unit=%s&assessment=%s' %\\n (parent_unit.unit_id, self.unit_id))\",\n \" return\",\n \" if (not unit.now_available and\\n not courses_module.courses.can_see_drafts(self.app_context)):\\n self.redirect('/')\\n return\",\n \" self.redirect('/')\",\n \" return\",\n \" self.template_value['main_content'] = (\\n self.get_assessment_content(student, course, unit, as_lesson=False))\",\n \" self.template_value['assessment_name'] = assessment_name\",\n \" self.template_value['unit_id'] = self.unit_id\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" self.render('assessment_page.html')\",\n \" def get_assessment_content(self, student, course, unit, as_lesson):\\n model_version = course.get_assessment_model_version(unit)\\n assert model_version in courses.SUPPORTED_ASSESSMENT_MODEL_VERSIONS\\n self.template_value['model_version'] = model_version\\n\\n if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\\n configure_readonly_view = self.configure_readonly_view_1_4\\n configure_active_view = self.configure_active_view_1_4\",\n \" model_version = course.get_assessment_model_version(unit)\",\n \" self.template_value['model_version'] = model_version\",\n \" if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\\n configure_readonly_view = self.configure_readonly_view_1_4\\n configure_active_view = self.configure_active_view_1_4\\n get_review_received = self.get_review_received_1_4\\n elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\\n configure_readonly_view = self.configure_readonly_view_1_5\\n configure_active_view = self.configure_active_view_1_5\\n get_review_received = self.get_review_received_1_5\",\n \" configure_readonly_view = self.configure_readonly_view_1_4\",\n \" configure_active_view = self.configure_active_view_1_4\",\n \" get_review_received = self.get_review_received_1_4\",\n \" elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\\n configure_readonly_view = self.configure_readonly_view_1_5\\n configure_active_view = self.configure_active_view_1_5\\n get_review_received = self.get_review_received_1_5\\n else:\\n raise ValueError('Bad assessment model version: %s' % model_version)\",\n \" configure_readonly_view = self.configure_readonly_view_1_5\",\n \" configure_active_view = self.configure_active_view_1_5\",\n \" get_review_received = self.get_review_received_1_5\",\n \" self.template_value['unit_id'] = unit.unit_id\",\n \" self.template_value['as_lesson'] = as_lesson\",\n \" self.template_value['assessment_title'] = unit.title\",\n \" self.template_value['assessment_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('assessment-post'))\",\n \" self.template_value['event_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('event-post'))\",\n \" self.template_value['grader'] = unit.workflow.get_grader()\",\n \" readonly_view = False\",\n \" due_date_exceeded = False\",\n \" submission_contents = None\",\n \" review_steps_for = []\",\n \" submission_due_date = unit.workflow.get_submission_due_date()\",\n \" if submission_due_date:\\n self.template_value['submission_due_date'] = (\\n submission_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\\n\\n time_now = datetime.datetime.now()\\n if time_now > submission_due_date:\\n readonly_view = True\\n due_date_exceeded = True\",\n \" self.template_value['submission_due_date'] = (\\n submission_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\",\n \" time_now = datetime.datetime.now()\",\n \" if time_now > submission_due_date:\\n readonly_view = True\\n due_date_exceeded = True\\n self.template_value['due_date_exceeded'] = True\",\n \" readonly_view = True\",\n \" due_date_exceeded = True\",\n \" self.template_value['due_date_exceeded'] = True\",\n \" if course.needs_human_grader(unit) and not student.is_transient:\\n self.template_value['matcher'] = unit.workflow.get_matcher()\\n\\n rp = course.get_reviews_processor()\\n review_steps_by = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\\n\\n # Determine if the student can see others' reviews of his/her work.\",\n \" self.template_value['matcher'] = unit.workflow.get_matcher()\",\n \" rp = course.get_reviews_processor()\",\n \" review_steps_by = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\",\n \" if (ReviewUtils.has_completed_enough_reviews(\\n review_steps_by, unit.workflow.get_review_min_count())):\\n submission_and_review_steps = (\\n rp.get_submission_and_review_steps(\\n unit.unit_id, student.get_key()))\\n\\n if submission_and_review_steps:\\n submission_contents = submission_and_review_steps[0]\",\n \" submission_and_review_steps = (\\n rp.get_submission_and_review_steps(\\n unit.unit_id, student.get_key()))\",\n \" if submission_and_review_steps:\\n submission_contents = submission_and_review_steps[0]\\n review_steps_for = submission_and_review_steps[1]\",\n \" submission_contents = submission_and_review_steps[0]\",\n \" review_steps_for = submission_and_review_steps[1]\",\n \" review_keys_for_student = []\",\n \" for review_step in review_steps_for:\\n can_show_review = (\\n review_step.state == domain.REVIEW_STATE_COMPLETED\\n and not review_step.removed\\n and review_step.review_key\\n )\\n\\n if can_show_review:\",\n \" can_show_review = (\\n review_step.state == domain.REVIEW_STATE_COMPLETED\\n and not review_step.removed\\n and review_step.review_key\\n )\",\n \" if can_show_review:\\n review_keys_for_student.append(review_step.review_key)\",\n \" review_keys_for_student.append(review_step.review_key)\",\n \" reviews_for_student = rp.get_reviews_by_keys(\\n unit.unit_id, review_keys_for_student)\",\n \" self.template_value['reviews_received'] = [get_review_received(\\n unit, review) for review in reviews_for_student]\",\n \" submission_contents = student_work.Submission.get_contents(\\n unit.unit_id, student.get_key())\",\n \" if submission_contents or due_date_exceeded:\\n readonly_view = True\\n configure_readonly_view(unit, submission_contents)\",\n \" readonly_view = True\",\n \" configure_readonly_view(unit, submission_contents)\",\n \" if not readonly_view:\\n if not student.is_transient:\\n submission_contents = student_work.Submission.get_contents(\\n unit.unit_id, student.get_key())\\n configure_active_view(unit, submission_contents)\",\n \" if not student.is_transient:\\n submission_contents = student_work.Submission.get_contents(\\n unit.unit_id, student.get_key())\",\n \" submission_contents = student_work.Submission.get_contents(\\n unit.unit_id, student.get_key())\",\n \" configure_active_view(unit, submission_contents)\",\n \" return self.render_template_to_html(\\n self.template_value, 'assessment.html')\",\n \" def configure_readonly_view_1_4(self, unit, submission_contents):\\n self.template_value['readonly_student_assessment'] = (\\n create_readonly_assessment_params(\\n self.get_course().get_assessment_content(unit),\\n StudentWorkUtils.get_answer_list(submission_contents)))\",\n \" self.template_value['readonly_student_assessment'] = (\\n create_readonly_assessment_params(\\n self.get_course().get_assessment_content(unit),\\n StudentWorkUtils.get_answer_list(submission_contents)))\",\n \" def configure_readonly_view_1_5(self, unit, submission_contents):\\n self.template_value['readonly_student_assessment'] = True\\n self.template_value['html_content'] = unit.html_content\\n self.template_value['html_saved_answers'] = transforms.dumps(\\n submission_contents)\",\n \" self.template_value['readonly_student_assessment'] = True\",\n \" self.template_value['html_content'] = unit.html_content\",\n \" self.template_value['html_saved_answers'] = transforms.dumps(\\n submission_contents)\",\n \" def configure_active_view_1_4(self, unit, submission_contents):\\n self.template_value['assessment_script_src'] = (\\n self.get_course().get_assessment_filename(unit.unit_id))\\n if submission_contents:\\n # If a previous submission exists, reinstate it.\\n self.template_value['saved_answers'] = transforms.dumps(\\n StudentWorkUtils.get_answer_list(submission_contents))\",\n \" self.template_value['assessment_script_src'] = (\\n self.get_course().get_assessment_filename(unit.unit_id))\",\n \" if submission_contents:\\n # If a previous submission exists, reinstate it.\\n self.template_value['saved_answers'] = transforms.dumps(\\n StudentWorkUtils.get_answer_list(submission_contents))\",\n \" self.template_value['saved_answers'] = transforms.dumps(\\n StudentWorkUtils.get_answer_list(submission_contents))\",\n \" def configure_active_view_1_5(self, unit, submission_contents):\\n self.template_value['html_content'] = unit.html_content\\n self.template_value['html_check_answers'] = unit.html_check_answers\\n if submission_contents:\\n # If a previous submission exists, reinstate it.\\n self.template_value['html_saved_answers'] = transforms.dumps(\\n submission_contents)\",\n \" self.template_value['html_content'] = unit.html_content\",\n \" self.template_value['html_check_answers'] = unit.html_check_answers\",\n \" if submission_contents:\\n # If a previous submission exists, reinstate it.\\n self.template_value['html_saved_answers'] = transforms.dumps(\\n submission_contents)\",\n \" self.template_value['html_saved_answers'] = transforms.dumps(\\n submission_contents)\",\n \" def get_review_received_1_4(self, unit, review):\\n return create_readonly_assessment_params(\\n self.get_course().get_review_content(unit),\\n StudentWorkUtils.get_answer_list(review))\",\n \" return create_readonly_assessment_params(\\n self.get_course().get_review_content(unit),\\n StudentWorkUtils.get_answer_list(review))\",\n \" def get_review_received_1_5(self, unit, review):\\n return {\\n 'content': unit.html_review_form,\\n 'saved_answers': transforms.dumps(review)\\n }\",\n \" return {\\n 'content': unit.html_review_form,\\n 'saved_answers': transforms.dumps(review)\\n }\",\n \"class ReviewDashboardHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for generating the index of reviews that a student has to do.\\\"\\\"\\\"\\n\\n def _populate_template(self, course, unit, review_steps):\\n \\\"\\\"\\\"Adds variables to the template for the review dashboard.\\\"\\\"\\\"\\n self.template_value['assessment_name'] = unit.title\\n self.template_value['unit_id'] = unit.unit_id\",\n \" \\\"\\\"\\\"Handler for generating the index of reviews that a student has to do.\\\"\\\"\\\"\",\n \" def _populate_template(self, course, unit, review_steps):\\n \\\"\\\"\\\"Adds variables to the template for the review dashboard.\\\"\\\"\\\"\\n self.template_value['assessment_name'] = unit.title\\n self.template_value['unit_id'] = unit.unit_id\\n\\n parent_unit = course.get_parent_unit(unit.unit_id)\\n\\n if parent_unit is not None:\",\n \" \\\"\\\"\\\"Adds variables to the template for the review dashboard.\\\"\\\"\\\"\",\n \" self.template_value['assessment_name'] = unit.title\",\n \" self.template_value['unit_id'] = unit.unit_id\",\n \" parent_unit = course.get_parent_unit(unit.unit_id)\",\n \" if parent_unit is not None:\\n self.template_value['back_link'] = 'unit?unit=%s&assessment=%s' % (\\n parent_unit.unit_id, unit.unit_id)\\n else:\\n self.template_value['back_link'] = (\\n 'assessment?name=%s' % unit.unit_id)\",\n \" self.template_value['back_link'] = 'unit?unit=%s&assessment=%s' % (\\n parent_unit.unit_id, unit.unit_id)\",\n \" self.template_value['back_link'] = (\\n 'assessment?name=%s' % unit.unit_id)\",\n \" self.template_value['event_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('event-post'))\",\n \" self.template_value['review_dashboard_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('review-dashboard-post'))\",\n \" self.template_value['REVIEW_STATE_COMPLETED'] = (\\n domain.REVIEW_STATE_COMPLETED)\",\n \" self.template_value['review_steps'] = review_steps\",\n \" self.template_value['review_min_count'] = (\\n unit.workflow.get_review_min_count())\",\n \" review_due_date = unit.workflow.get_review_due_date()\",\n \" if review_due_date:\\n self.template_value['review_due_date'] = review_due_date.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\",\n \" self.template_value['review_due_date'] = review_due_date.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\",\n \" time_now = datetime.datetime.now()\",\n \" self.template_value['due_date_exceeded'] = (time_now > review_due_date)\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n course = self.get_course()\\n rp = course.get_reviews_processor()\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" course = self.get_course()\",\n \" rp = course.get_reviews_processor()\",\n \" unit, _ = extract_unit_and_lesson(self)\",\n \" if not unit:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" if not course.needs_human_grader(unit):\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" if not rp.does_submission_exist(unit.unit_id, student.get_key()):\\n self.template_value['error_code'] = (\\n 'cannot_review_before_submitting_assignment')\\n self.render('error.html')\\n return\",\n \" self.template_value['error_code'] = (\\n 'cannot_review_before_submitting_assignment')\",\n \" self.render('error.html')\",\n \" return\",\n \" review_steps = rp.get_review_steps_by(unit.unit_id, student.get_key())\",\n \" self._populate_template(course, unit, review_steps)\",\n \" required_review_count = unit.workflow.get_review_min_count()\",\n \" self.template_value['can_request_new_review'] = (\\n len(review_steps) < required_review_count or\\n ReviewUtils.has_completed_all_assigned_reviews(review_steps)\\n )\",\n \" self.render('review_dashboard.html')\",\n \" def post(self):\\n \\\"\\\"\\\"Allows a reviewer to request a new review.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n if not self.assert_xsrf_token_or_fail(\\n self.request, 'review-dashboard-post'):\",\n \" \\\"\\\"\\\"Allows a reviewer to request a new review.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(\\n self.request, 'review-dashboard-post'):\\n return\",\n \" return\",\n \" course = self.get_course()\",\n \" unit, unused_lesson = extract_unit_and_lesson(self)\",\n \" if not unit:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" rp = course.get_reviews_processor()\",\n \" review_steps = rp.get_review_steps_by(unit.unit_id, student.get_key())\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" if not course.needs_human_grader(unit):\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" if not rp.does_submission_exist(unit.unit_id, student.get_key()):\\n self.template_value['error_code'] = (\\n 'cannot_review_before_submitting_assignment')\\n self.render('error.html')\\n return\",\n \" self.template_value['error_code'] = (\\n 'cannot_review_before_submitting_assignment')\",\n \" self.render('error.html')\",\n \" return\",\n \" time_now = datetime.datetime.now()\",\n \" review_due_date = unit.workflow.get_review_due_date()\",\n \" if time_now > review_due_date:\\n self.template_value['error_code'] = (\\n 'cannot_request_review_after_deadline')\\n self.render('error.html')\\n return\",\n \" self.template_value['error_code'] = (\\n 'cannot_request_review_after_deadline')\",\n \" self.render('error.html')\",\n \" return\",\n \" review_min_count = unit.workflow.get_review_min_count()\",\n \" can_request_new_review = (\\n len(review_steps) < review_min_count or\\n ReviewUtils.has_completed_all_assigned_reviews(review_steps))\",\n \" if not can_request_new_review:\\n self.template_value['review_min_count'] = review_min_count\\n self.template_value['error_code'] = 'must_complete_more_reviews'\\n self.render('error.html')\\n return\",\n \" self.template_value['review_min_count'] = review_min_count\",\n \" self.template_value['error_code'] = 'must_complete_more_reviews'\",\n \" self.render('error.html')\",\n \" return\",\n \" self.template_value['no_submissions_available'] = True\",\n \" try:\\n review_step_key = rp.get_new_review(unit.unit_id, student.get_key())\\n redirect_params = {\\n 'key': review_step_key,\\n 'unit': unit.unit_id,\\n }\\n self.redirect('/review?%s' % urllib.urlencode(redirect_params))\\n except Exception: # pylint: disable=broad-except\",\n \" review_step_key = rp.get_new_review(unit.unit_id, student.get_key())\",\n \" redirect_params = {\\n 'key': review_step_key,\\n 'unit': unit.unit_id,\\n }\",\n \" self.redirect('/review?%s' % urllib.urlencode(redirect_params))\",\n \" review_steps = rp.get_review_steps_by(\\n unit.unit_id, student.get_key())\",\n \" self._populate_template(course, unit, review_steps)\",\n \" self.render('review_dashboard.html')\",\n \"class ReviewHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for generating the submission page for individual reviews.\\\"\\\"\\\"\\n\\n # pylint: disable=too-many-statements\\n def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\",\n \" \\\"\\\"\\\"Handler for generating the submission page for individual reviews.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n course = self.get_course()\\n rp = course.get_reviews_processor()\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" course = self.get_course()\",\n \" rp = course.get_reviews_processor()\",\n \" unit, unused_lesson = extract_unit_and_lesson(self)\",\n \" if not course.needs_human_grader(unit):\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" review_step_key = self.request.get('key')\",\n \" if not unit or not review_step_key:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" try:\\n review_step_key = db.Key(encoded=review_step_key)\\n review_step = rp.get_review_steps_by_keys(\\n unit.unit_id, [review_step_key])[0]\\n except Exception: # pylint: disable=broad-except\\n self.error(404)\\n return\",\n \" review_step_key = db.Key(encoded=review_step_key)\",\n \" review_step = rp.get_review_steps_by_keys(\\n unit.unit_id, [review_step_key])[0]\",\n \" self.error(404)\",\n \" return\",\n \" if not review_step:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" if not student.has_same_key_as(review_step.reviewer_key):\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" model_version = course.get_assessment_model_version(unit)\",\n \" self.template_value['model_version'] = model_version\",\n \" if model_version == courses.ASSESSMENT_MODEL_VERSION_1_4:\\n configure_assessment_view = self.configure_assessment_view_1_4\\n configure_readonly_review = self.configure_readonly_review_1_4\\n configure_active_review = self.configure_active_review_1_4\\n elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\\n configure_assessment_view = self.configure_assessment_view_1_5\\n configure_readonly_review = self.configure_readonly_review_1_5\\n configure_active_review = self.configure_active_review_1_5\",\n \" configure_assessment_view = self.configure_assessment_view_1_4\",\n \" configure_readonly_review = self.configure_readonly_review_1_4\",\n \" configure_active_review = self.configure_active_review_1_4\",\n \" elif model_version == courses.ASSESSMENT_MODEL_VERSION_1_5:\\n configure_assessment_view = self.configure_assessment_view_1_5\\n configure_readonly_review = self.configure_readonly_review_1_5\\n configure_active_review = self.configure_active_review_1_5\\n else:\\n raise ValueError('Bad assessment model version: %s' % model_version)\",\n \" configure_assessment_view = self.configure_assessment_view_1_5\",\n \" configure_readonly_review = self.configure_readonly_review_1_5\",\n \" configure_active_review = self.configure_active_review_1_5\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" self.template_value['unit_id'] = unit.unit_id\",\n \" self.template_value['key'] = review_step_key\",\n \" submission_key = review_step.submission_key\",\n \" submission_contents = student_work.Submission.get_contents_by_key(\\n submission_key)\",\n \" configure_assessment_view(unit, submission_contents)\",\n \" review_due_date = unit.workflow.get_review_due_date()\",\n \" if review_due_date:\\n self.template_value['review_due_date'] = review_due_date.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\",\n \" self.template_value['review_due_date'] = review_due_date.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\",\n \" review_key = review_step.review_key\",\n \" rev = rp.get_reviews_by_keys(\\n unit.unit_id, [review_key])[0] if review_key else None\",\n \" time_now = datetime.datetime.now()\",\n \" show_readonly_review = (\\n review_step.state == domain.REVIEW_STATE_COMPLETED or\\n time_now > review_due_date)\",\n \" self.template_value['due_date_exceeded'] = (time_now > review_due_date)\",\n \" if show_readonly_review:\\n configure_readonly_review(unit, rev)\\n else:\\n # Populate the review form,\\n configure_active_review(unit, rev)\",\n \" configure_readonly_review(unit, rev)\",\n \" configure_active_review(unit, rev)\",\n \" self.template_value['assessment_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('review-post'))\",\n \" self.template_value['event_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('event-post'))\",\n \" self.render('review.html')\",\n \" def configure_assessment_view_1_4(self, unit, submission_contents):\\n readonly_student_assessment = create_readonly_assessment_params(\\n self.get_course().get_assessment_content(unit),\\n StudentWorkUtils.get_answer_list(submission_contents))\\n self.template_value[\\n 'readonly_student_assessment'] = readonly_student_assessment\",\n \" readonly_student_assessment = create_readonly_assessment_params(\\n self.get_course().get_assessment_content(unit),\\n StudentWorkUtils.get_answer_list(submission_contents))\",\n \" self.template_value[\\n 'readonly_student_assessment'] = readonly_student_assessment\",\n \" def configure_assessment_view_1_5(self, unit, submission_contents):\\n self.template_value['html_review_content'] = unit.html_content\\n self.template_value['html_reviewee_answers'] = transforms.dumps(\\n submission_contents)\",\n \" self.template_value['html_review_content'] = unit.html_content\",\n \" self.template_value['html_reviewee_answers'] = transforms.dumps(\\n submission_contents)\",\n \" def configure_readonly_review_1_4(self, unit, review_contents):\\n readonly_review_form = create_readonly_assessment_params(\\n self.get_course().get_review_content(unit),\\n StudentWorkUtils.get_answer_list(review_contents))\\n self.template_value['readonly_review_form'] = readonly_review_form\",\n \" readonly_review_form = create_readonly_assessment_params(\\n self.get_course().get_review_content(unit),\\n StudentWorkUtils.get_answer_list(review_contents))\",\n \" self.template_value['readonly_review_form'] = readonly_review_form\",\n \" def configure_readonly_review_1_5(self, unit, review_contents):\\n self.template_value['readonly_review_form'] = True\\n self.template_value['html_review_form'] = unit.html_review_form\\n self.template_value['html_review_answers'] = transforms.dumps(\\n review_contents)\",\n \" self.template_value['readonly_review_form'] = True\",\n \" self.template_value['html_review_form'] = unit.html_review_form\",\n \" self.template_value['html_review_answers'] = transforms.dumps(\\n review_contents)\",\n \" def configure_active_review_1_4(self, unit, review_contents):\\n self.template_value['assessment_script_src'] = (\\n self.get_course().get_review_filename(unit.unit_id))\\n saved_answers = (\\n StudentWorkUtils.get_answer_list(review_contents)\\n if review_contents else [])\\n self.template_value['saved_answers'] = transforms.dumps(saved_answers)\",\n \" self.template_value['assessment_script_src'] = (\\n self.get_course().get_review_filename(unit.unit_id))\",\n \" saved_answers = (\\n StudentWorkUtils.get_answer_list(review_contents)\\n if review_contents else [])\",\n \" self.template_value['saved_answers'] = transforms.dumps(saved_answers)\",\n \" def configure_active_review_1_5(self, unit, review_contents):\\n self.template_value['html_review_form'] = unit.html_review_form\\n self.template_value['html_review_answers'] = transforms.dumps(\\n review_contents)\",\n \" self.template_value['html_review_form'] = unit.html_review_form\",\n \" self.template_value['html_review_answers'] = transforms.dumps(\\n review_contents)\",\n \" def post(self):\\n \\\"\\\"\\\"Handles POST requests, when a reviewer submits a review.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n if not self.assert_xsrf_token_or_fail(self.request, 'review-post'):\\n return\",\n \" \\\"\\\"\\\"Handles POST requests, when a reviewer submits a review.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(self.request, 'review-post'):\\n return\",\n \" return\",\n \" course = self.get_course()\",\n \" rp = course.get_reviews_processor()\",\n \" unit_id = self.request.get('unit_id')\",\n \" unit = self.find_unit_by_id(unit_id)\",\n \" if not unit or not course.needs_human_grader(unit):\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" review_step_key = self.request.get('key')\",\n \" if not review_step_key:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" try:\\n review_step_key = db.Key(encoded=review_step_key)\\n review_step = rp.get_review_steps_by_keys(\\n unit.unit_id, [review_step_key])[0]\\n except Exception: # pylint: disable=broad-except\\n self.error(404)\\n return\",\n \" review_step_key = db.Key(encoded=review_step_key)\",\n \" review_step = rp.get_review_steps_by_keys(\\n unit.unit_id, [review_step_key])[0]\",\n \" self.error(404)\",\n \" return\",\n \" if not student.has_same_key_as(review_step.reviewer_key):\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" self.template_value['unit_id'] = unit.unit_id\",\n \" time_now = datetime.datetime.now()\",\n \" review_due_date = unit.workflow.get_review_due_date()\",\n \" if time_now > review_due_date:\\n self.template_value['time_now'] = time_now.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\\n self.template_value['review_due_date'] = (\\n review_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\\n self.template_value['error_code'] = 'review_deadline_exceeded'\\n self.render('error.html')\\n return\",\n \" self.template_value['time_now'] = time_now.strftime(\\n HUMAN_READABLE_DATETIME_FORMAT)\",\n \" self.template_value['review_due_date'] = (\\n review_due_date.strftime(HUMAN_READABLE_DATETIME_FORMAT))\",\n \" self.template_value['error_code'] = 'review_deadline_exceeded'\",\n \" self.render('error.html')\",\n \" return\",\n \" mark_completed = (self.request.get('is_draft') == 'false')\",\n \" self.template_value['is_draft'] = (not mark_completed)\",\n \" review_payload = self.request.get('answers')\",\n \" review_payload = transforms.loads(\\n review_payload) if review_payload else []\",\n \" try:\\n rp.write_review(\\n unit.unit_id, review_step_key, review_payload, mark_completed)\\n course.update_final_grades(student)\\n except domain.TransitionError:\\n self.template_value['error_code'] = 'review_already_submitted'\\n self.render('error.html')\\n return\",\n \" rp.write_review(\\n unit.unit_id, review_step_key, review_payload, mark_completed)\",\n \" course.update_final_grades(student)\",\n \" self.template_value['error_code'] = 'review_already_submitted'\",\n \" self.render('error.html')\",\n \" return\",\n \" self.render('review_confirmation.html')\",\n \"class EventsRESTHandler(BaseRESTHandler):\\n \\\"\\\"\\\"Provides REST API for an Event.\\\"\\\"\\\"\\n\\n def get(self):\\n \\\"\\\"\\\"Returns a 404 error; this handler should not be GET-accessible.\\\"\\\"\\\"\\n self.error(404)\\n return\",\n \" \\\"\\\"\\\"Provides REST API for an Event.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Returns a 404 error; this handler should not be GET-accessible.\\\"\\\"\\\"\\n self.error(404)\\n return\",\n \" \\\"\\\"\\\"Returns a 404 error; this handler should not be GET-accessible.\\\"\\\"\\\"\",\n \" self.error(404)\",\n \" return\",\n \" def _add_request_facts(self, payload_json):\\n payload_dict = transforms.loads(payload_json)\\n if 'loc' not in payload_dict:\\n payload_dict['loc'] = {}\\n loc = payload_dict['loc']\\n loc['locale'] = self.get_locale_for(self.request, self.app_context)\\n loc['language'] = self.request.headers.get('Accept-Language')\\n loc['country'] = self.request.headers.get('X-AppEngine-Country')\",\n \" payload_dict = transforms.loads(payload_json)\",\n \" if 'loc' not in payload_dict:\\n payload_dict['loc'] = {}\",\n \" payload_dict['loc'] = {}\",\n \" loc = payload_dict['loc']\",\n \" loc['locale'] = self.get_locale_for(self.request, self.app_context)\",\n \" loc['language'] = self.request.headers.get('Accept-Language')\",\n \" loc['country'] = self.request.headers.get('X-AppEngine-Country')\",\n \" loc['region'] = self.request.headers.get('X-AppEngine-Region')\",\n \" loc['city'] = self.request.headers.get('X-AppEngine-City')\",\n \" lat_long = self.request.headers.get('X-AppEngine-CityLatLong')\",\n \" if lat_long:\\n latitude, longitude = lat_long.split(',')\\n loc['lat'] = float(latitude)\\n loc['long'] = float(longitude)\",\n \" latitude, longitude = lat_long.split(',')\",\n \" loc['lat'] = float(latitude)\",\n \" loc['long'] = float(longitude)\",\n \" user_agent = self.request.headers.get('User-Agent')\",\n \" if user_agent:\\n payload_dict['user_agent'] = user_agent\",\n \" payload_dict['user_agent'] = user_agent\",\n \" payload_json = transforms.dumps(payload_dict).lstrip(\\n models.transforms.JSON_XSSI_PREFIX)\",\n \" return payload_json\",\n \" def post(self):\\n \\\"\\\"\\\"Receives event and puts it into datastore.\\\"\\\"\\\"\\n\\n COURSE_EVENTS_RECEIVED.inc()\\n can = (\\n CAN_PERSIST_ACTIVITY_EVENTS.value or\\n CAN_PERSIST_PAGE_EVENTS.value or\\n CAN_PERSIST_TAG_EVENTS.value)\",\n \" \\\"\\\"\\\"Receives event and puts it into datastore.\\\"\\\"\\\"\",\n \" COURSE_EVENTS_RECEIVED.inc()\",\n \" can = (\\n CAN_PERSIST_ACTIVITY_EVENTS.value or\\n CAN_PERSIST_PAGE_EVENTS.value or\\n CAN_PERSIST_TAG_EVENTS.value)\",\n \" if not can:\\n return\",\n \" return\",\n \" request = transforms.loads(self.request.get('request'))\",\n \" if not self.assert_xsrf_token_or_fail(request, 'event-post', {}):\\n return\",\n \" return\",\n \" user = self.get_user()\",\n \" if not user:\\n return\",\n \" return\",\n \" source = request.get('source')\",\n \" payload_json = request.get('payload')\",\n \" payload_json = self._add_request_facts(payload_json)\",\n \" models.EventEntity.record(source, user, payload_json)\",\n \" COURSE_EVENTS_RECORDED.inc()\",\n \" self.process_event(user, source, payload_json)\",\n \" def process_event(self, user, source, payload_json):\\n \\\"\\\"\\\"Processes an event after it has been recorded in the event stream.\\\"\\\"\\\"\\n\\n student = models.Student.get_enrolled_student_by_email(user.email())\\n if not student:\\n return\\n\\n payload = transforms.loads(payload_json)\",\n \" \\\"\\\"\\\"Processes an event after it has been recorded in the event stream.\\\"\\\"\\\"\",\n \" student = models.Student.get_enrolled_student_by_email(user.email())\",\n \" if not student:\\n return\",\n \" return\",\n \" payload = transforms.loads(payload_json)\",\n \" if 'location' not in payload:\\n return\",\n \" return\",\n \" source_url = payload['location']\",\n \" if source in TAGS_THAT_TRIGGER_BLOCK_COMPLETION:\\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\\n self, source_url)\\n if unit_id is not None and lesson_id is not None:\\n self.get_course().get_progress_tracker().put_block_completed(\\n student, unit_id, lesson_id, payload['index'])\\n elif source in TAGS_THAT_TRIGGER_COMPONENT_COMPLETION:\\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\",\n \" unit_id, lesson_id = get_unit_and_lesson_id_from_url(\\n self, source_url)\",\n \" if unit_id is not None and lesson_id is not None:\\n self.get_course().get_progress_tracker().put_block_completed(\\n student, unit_id, lesson_id, payload['index'])\",\n \" self.get_course().get_progress_tracker().put_block_completed(\\n student, unit_id, lesson_id, payload['index'])\",\n \" elif source in TAGS_THAT_TRIGGER_COMPONENT_COMPLETION:\\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\\n self, source_url)\\n cpt_id = payload['instanceid']\\n if (unit_id is not None and lesson_id is not None and\\n cpt_id is not None):\\n self.get_course().get_progress_tracker(\\n ).put_component_completed(\",\n \" unit_id, lesson_id = get_unit_and_lesson_id_from_url(\\n self, source_url)\",\n \" cpt_id = payload['instanceid']\",\n \" if (unit_id is not None and lesson_id is not None and\\n cpt_id is not None):\\n self.get_course().get_progress_tracker(\\n ).put_component_completed(\\n student, unit_id, lesson_id, cpt_id)\",\n \" self.get_course().get_progress_tracker(\\n ).put_component_completed(\\n student, unit_id, lesson_id, cpt_id)\",\n \" elif source in TAGS_THAT_TRIGGER_HTML_COMPLETION:\\n # Records progress for scored lessons.\\n unit_id, lesson_id = get_unit_and_lesson_id_from_url(\\n self, source_url)\\n course = self.get_course()\\n unit = course.find_unit_by_id(unit_id)\\n lesson = course.find_lesson_by_id(unit, lesson_id)\\n if (unit_id is not None and\",\n \" unit_id, lesson_id = get_unit_and_lesson_id_from_url(\\n self, source_url)\",\n \" course = self.get_course()\",\n \" unit = course.find_unit_by_id(unit_id)\",\n \" lesson = course.find_lesson_by_id(unit, lesson_id)\",\n \" if (unit_id is not None and\\n lesson_id is not None and\\n not lesson.manual_progress):\\n self.get_course().get_progress_tracker().put_html_completed(\\n student, unit_id, lesson_id)\",\n \" self.get_course().get_progress_tracker().put_html_completed(\\n student, unit_id, lesson_id)\"\n]","isConversational":false}}},{"rowIdx":4799,"cells":{"code":{"kind":"string","value":"# Copyright 2012 Google Inc. All Rights Reserved.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS-IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\"\"\"Handlers that are not directly related to course content.\"\"\"\n\n__author__ = 'Saifu Angto (saifu@google.com)'\n\nimport datetime\nimport HTMLParser\nimport os\nimport re\nimport urllib\nimport urlparse\n\nimport jinja2\nimport sites\nimport webapp2\n\nimport appengine_config\nfrom common import jinja_utils\nfrom common import locales\nfrom common import resource\nfrom common import safe_dom\nfrom common import schema_fields\nfrom common import tags\nfrom common import utils as common_utils\nfrom common.crypto import XsrfTokenManager\nfrom models import courses\nfrom models import resources_display\nfrom models import models\nfrom models import transforms\nfrom models.config import ConfigProperty\nfrom models.courses import Course\nfrom models.models import Student\nfrom models.models import StudentProfileDAO\nfrom models.models import TransientStudent\nfrom models.roles import Roles\nfrom modules import courses as courses_module\n\nfrom google.appengine.api import users\n\n# The name of the template dict key that stores a course's base location.\nCOURSE_BASE_KEY = 'gcb_course_base'\n\n# The name of the template dict key that stores data from course.yaml.\nCOURSE_INFO_KEY = 'course_info'\n\n# The name of the cookie used to store the locale prefs for users out of session\nGUEST_LOCALE_COOKIE = 'cb-user-locale'\nGUEST_LOCALE_COOKIE_MAX_AGE_SEC = 48 * 60 * 60 # 48 hours\n\nTRANSIENT_STUDENT = TransientStudent()\n\n# Whether to output debug info into the page.\nCAN_PUT_DEBUG_INFO_INTO_PAGES = ConfigProperty(\n 'gcb_can_put_debug_info_into_pages', bool, (\n 'Whether or not to put debugging information into the web pages. '\n 'This may be useful for debugging purposes if you develop custom '\n 'Course Builder features or extensions.'), False)\n\n# Whether to record page load/unload events in a database.\nCAN_PERSIST_PAGE_EVENTS = ConfigProperty(\n 'gcb_can_persist_page_events', bool, (\n 'Whether or not to record student page interactions in a '\n 'datastore. Without event recording, you cannot analyze student '\n 'page interactions. On the other hand, no event recording reduces '\n 'the number of datastore operations and minimizes the use of Google '\n 'App Engine quota. Turn event recording on if you want to analyze '\n 'this data.'),\n False)\n\n\n# Whether to record tag events in a database.\nCAN_PERSIST_TAG_EVENTS = ConfigProperty(\n 'gcb_can_persist_tag_events', bool, (\n 'Whether or not to record student tag interactions in a '\n 'datastore. Without event recording, you cannot analyze student '\n 'tag interactions. On the other hand, no event recording reduces '\n 'the number of datastore operations and minimizes the use of Google '\n 'App Engine quota. Turn event recording on if you want to analyze '\n 'this data.'),\n False)\n\n\n# Whether to record events in a database.\nCAN_PERSIST_ACTIVITY_EVENTS = ConfigProperty(\n 'gcb_can_persist_activity_events', bool, (\n 'Whether or not to record student activity interactions in a '\n 'datastore. Without event recording, you cannot analyze student '\n 'activity interactions. On the other hand, no event recording reduces '\n 'the number of datastore operations and minimizes the use of Google '\n 'App Engine quota. Turn event recording on if you want to analyze '\n 'this data.'),\n False)\n\n\n# Date format string for displaying datetimes in UTC.\n# Example: 2013-03-21 13:00 UTC\nHUMAN_READABLE_DATETIME_FORMAT = '%Y-%m-%d, %H:%M UTC'\n\n# Date format string for displaying dates. Example: 2013-03-21\nHUMAN_READABLE_DATE_FORMAT = '%Y-%m-%d'\n\n# Time format string for displaying times. Example: 01:16:40 UTC.\nHUMAN_READABLE_TIME_FORMAT = '%H:%M:%S UTC'\n\n\nclass PageInitializer(object):\n \"\"\"Abstract class that defines an interface to initialize page headers.\"\"\"\n\n @classmethod\n def initialize(cls, template_value):\n raise NotImplementedError\n\n\nclass DefaultPageInitializer(PageInitializer):\n \"\"\"Implements default page initializer.\"\"\"\n\n @classmethod\n def initialize(cls, template_value):\n pass\n\n\nclass PageInitializerService(object):\n \"\"\"Installs the appropriate PageInitializer.\"\"\"\n _page_initializer = DefaultPageInitializer\n\n @classmethod\n def get(cls):\n return cls._page_initializer\n\n @classmethod\n def set(cls, page_initializer):\n cls._page_initializer = page_initializer\n\n\nclass ReflectiveRequestHandler(object):\n \"\"\"Uses reflection to handle custom get() and post() requests.\n\n Use this class as a mix-in with any webapp2.RequestHandler to allow request\n dispatching to multiple get() and post() methods based on the 'action'\n parameter.\n\n Open your existing webapp2.RequestHandler, add this class as a mix-in.\n Define the following class variables:\n\n default_action = 'list'\n get_actions = ['default_action', 'edit']\n post_actions = ['save']\n\n Add instance methods named get_list(self), get_edit(self), post_save(self).\n These methods will now be called automatically based on the 'action'\n GET/POST parameter.\n \"\"\"\n\n def create_xsrf_token(self, action):\n return XsrfTokenManager.create_xsrf_token(action)\n\n def get(self):\n \"\"\"Handles GET.\"\"\"\n action = self.request.get('action')\n if not action:\n action = self.default_action\n\n if action not in self.get_actions:\n self.error(404)\n return\n\n handler = getattr(self, 'get_%s' % action)\n if not handler:\n self.error(404)\n return\n\n return handler()\n\n def post(self):\n \"\"\"Handles POST.\"\"\"\n action = self.request.get('action')\n if not action or action not in self.post_actions:\n self.error(404)\n return\n\n handler = getattr(self, 'post_%s' % action)\n if not handler:\n self.error(404)\n return\n\n # Each POST request must have valid XSRF token.\n xsrf_token = self.request.get('xsrf_token')\n if not XsrfTokenManager.is_xsrf_token_valid(xsrf_token, action):\n self.error(403)\n return\n\n return handler()\n\n\nclass HtmlHooks(object):\n\n # As of Q1, 2015, hook points moved from \"where-ever in the course\n # settings is convenient\" to \"Anywhere under the top-level 'html_hooks'\n # item\". Older courses may have these items still referenced from the\n # root of the settings hierarchy, rather than under \"html_hooks\". Rather\n # than modifying the course settings, we simply also look for these legacy\n # items in the old locations.\n BACKWARD_COMPATIBILITY_ITEMS = [\n 'base.before_head_tag_ends',\n 'base.after_body_tag_begins',\n 'base.after_navbar_begins',\n 'base.before_navbar_ends',\n 'base.after_top_content_ends',\n 'base.after_main_content_ends',\n 'base.before_body_tag_ends',\n 'unit.after_leftnav_begins',\n 'unit.before_leftnav_ends',\n 'unit.after_content_begins',\n 'unit.before_content_ends',\n 'preview.after_top_content_ends',\n 'preview.after_main_content_ends',\n ]\n\n # We used to use colons to separate path components in hook names. Now\n # that I18N is using colons to delimit key components, we need to pick\n # a different separator. There may be old Jinja templates using the old\n # naming style, so continue to permit it.\n BACKWARD_COMPATIBILITY_SEPARATOR = ':'\n\n # Name for the top-level course settings section now holding the hooks,\n # all of the hooks, and nothing but the hooks.\n HTML_HOOKS = 'html_hooks'\n\n # Extension modules may be called back from HtmlHooks.__init__. In\n # particular, I18N's mode of operation is to hook load functionality to\n # replace strings with translated versions.\n POST_LOAD_CALLBACKS = []\n\n # Path component separator. Allows sub-structure within the html_hooks\n # top-level dict.\n SEPARATOR = '.'\n\n def __init__(self, course, prefs=None):\n if prefs is None:\n prefs = models.StudentPreferencesDAO.load_or_create()\n\n # Fetch all the hooks. Since these are coming from the course\n # settings, getting them all is not too inefficient.\n self.content = self.get_all(course)\n\n # Call callbacks to let extension modules know we have text loaded,\n # in case they need to modify, replace, or extend anything.\n for callback in self.POST_LOAD_CALLBACKS:\n callback(self.content)\n\n # When the course admin sees hooks, we may need to add nonblank\n # text so the admin can have a place to click to edit them.\n self.show_admin_content = False\n if (prefs and prefs.show_hooks and\n Roles.is_course_admin(course.app_context)):\n self.show_admin_content = True\n if course.version == courses.CourseModel12.VERSION:\n self.show_admin_content = False\n if self.show_admin_content:\n self.update_for_admin()\n\n def update_for_admin(self):\n \"\"\"Show HTML hooks with non-blank text if admin has edit pref set.\n\n If we are displaying to a course admin, and the admin has enabled\n a preference, we want to ensure that each HTML hook point has some\n non-blank text in it. (Hooks often carry only scripts, or other\n non-displaying tags). Having some actual text in the tag forces\n browsers to give it a visible component on the page. Clicking on\n this component permits the admin to edit the item.\n \"\"\"\n\n class VisibleHtmlParser(HTMLParser.HTMLParser):\n\n def __init__(self, *args, **kwargs):\n HTMLParser.HTMLParser.__init__(self, *args, **kwargs)\n self._has_visible_content = False\n\n def handle_starttag(self, unused_tag, unused_attrs):\n # Not 100% guaranteed; e.g., <p> does not guarantee content,\n # but <button> does -- even if the <button> does not contain\n # data/entity/char. I don't want to spend a lot of logic\n # looking for specific cases, and this behavior is enough.\n self._has_visible_content = True\n\n def handle_data(self, data):\n if data.strip():\n self._has_visible_content = True\n\n def handle_entityref(self, unused_data):\n self._has_visible_content = True\n\n def handle_charref(self, unused_data):\n self._has_visible_content = True\n\n def has_visible_content(self):\n return self._has_visible_content\n\n def reset(self):\n HTMLParser.HTMLParser.reset(self)\n self._has_visible_content = False\n\n parser = VisibleHtmlParser()\n\n for key, value in self.content.iteritems():\n parser.reset()\n parser.feed(value)\n parser.close()\n if not parser.has_visible_content():\n self.content[key] += key\n\n @classmethod\n def _get_content_from(cls, name, environ):\n # Look up desired content chunk in course.yaml dict/sub-dict.\n content = None\n for part in name.split(cls.SEPARATOR):\n if part in environ:\n item = environ[part]\n if isinstance(item, basestring):\n content = item\n else:\n environ = item\n return content\n\n @classmethod\n def get_content(cls, course, name):\n environ = course.app_context.get_environ()\n\n # Prefer getting hook content from html_hooks sub-dict within\n # course settings.\n content = cls._get_content_from(name, environ.get(cls.HTML_HOOKS, {}))\n\n # For backward compatibility, fall back to looking in top level.\n if content is None:\n content = cls._get_content_from(name, environ)\n return content\n\n @classmethod\n def get_all(cls, course):\n \"\"\"Get all hook names and associated content.\"\"\"\n ret = {}\n # Look through the backward-compatibility items. These may not all\n # exist, but pick up whatever does already exist.\n environ = course.app_context.get_environ()\n for backward_compatibility_item in cls.BACKWARD_COMPATIBILITY_ITEMS:\n value = cls._get_content_from(backward_compatibility_item, environ)\n if value:\n ret[backward_compatibility_item] = value\n\n # Pick up hook values from the official location under 'html_hooks'\n # within course settings. These can override backward-compatible\n # versions when both are present.\n def find_leaves(environ, parent_names, ret):\n for name, value in environ.iteritems():\n if isinstance(value, basestring):\n full_name = cls.SEPARATOR.join(parent_names + [name])\n ret[full_name] = value\n elif isinstance(value, dict):\n find_leaves(value, parent_names + [name], ret)\n\n find_leaves(environ[cls.HTML_HOOKS], [], ret)\n return ret\n\n\n def insert(self, name):\n name = name.replace(self.BACKWARD_COMPATIBILITY_SEPARATOR,\n self.SEPARATOR)\n content = self.content.get(name, '')\n\n # Add the content to the page in response to the hook call.\n hook_div = safe_dom.Element('div', className='gcb-html-hook',\n id=re.sub('[^a-zA-Z-]', '-', name))\n hook_div.add_child(tags.html_to_safe_dom(content, self))\n\n # Mark up content to enable edit controls\n if self.show_admin_content:\n hook_div.add_attribute(onclick='gcb_edit_hook_point(\"%s\")' % name)\n hook_div.add_attribute(className='gcb-html-hook-edit')\n return jinja2.Markup(hook_div.sanitized)\n\n\nclass ResourceHtmlHook(resource.AbstractResourceHandler):\n \"\"\"Provide a class to allow treating this resource type polymorphically.\"\"\"\n\n TYPE = 'html_hook'\n NAME = 'name'\n CONTENT = 'content'\n\n @classmethod\n def get_resource(cls, course, key):\n return cls.get_data_dict(course, key)\n\n @classmethod\n def get_resource_title(cls, rsrc):\n return rsrc[cls.NAME]\n\n @classmethod\n def get_schema(cls, unused_course, unused_key):\n ret = schema_fields.FieldRegistry(\n 'HTML Hooks',\n description='HTML fragments that can be inserted at arbitrary '\n 'points in student-visible pages using the syntax: '\n ' {{ html_hooks.insert(\\'name_of_hook_section\\') }} ')\n ret.add_property(schema_fields.SchemaField(\n cls.NAME, 'Name', 'string', i18n=False))\n ret.add_property(schema_fields.SchemaField(\n cls.CONTENT, 'Content', 'html', editable=True,\n description='HTML content injected into page where hook '\n 'is referenced.'))\n return ret\n\n @classmethod\n def to_data_dict(cls, key, content):\n return {\n cls.NAME: key,\n cls.CONTENT: content,\n }\n\n @classmethod\n def get_data_dict(cls, course, key):\n return cls.to_data_dict(key, HtmlHooks.get_content(course, key))\n\n @classmethod\n def get_view_url(cls, rsrc):\n return None\n\n @classmethod\n def get_edit_url(cls, key):\n return 'dashboard?%s' % urllib.urlencode({\n 'action': 'edit_html_hook',\n 'key': key\n })\n\n @classmethod\n def get_all(cls, course):\n \"\"\"Returns key/value pairs of resource.Key -> <html-hook resource>\"\"\"\n\n ret = {}\n for name, content in HtmlHooks.get_all(course).iteritems():\n key = resource.Key(cls.TYPE, name, course)\n value = {\n cls.NAME: name,\n cls.CONTENT: content\n }\n ret[key] = value\n return ret\n\n\nclass ApplicationHandler(webapp2.RequestHandler):\n \"\"\"A handler that is aware of the application context.\"\"\"\n\n LEFT_LINKS = []\n RIGHT_LINKS = []\n EXTRA_GLOBAL_CSS_URLS = []\n EXTRA_GLOBAL_JS_URLS = []\n\n @classmethod\n def is_absolute(cls, url):\n return sites.ApplicationContext.is_absolute_url(url)\n\n @classmethod\n def get_base_href(cls, handler):\n \"\"\"Computes current course <base> href.\"\"\"\n base = handler.app_context.get_slug()\n if not base.endswith('/'):\n base = '%s/' % base\n\n # For IE to work with the <base> tag, its href must be an absolute URL.\n if not sites.ApplicationContext.is_absolute_url(base):\n parts = urlparse.urlparse(handler.request.url)\n base = urlparse.urlunparse(\n (parts.scheme, parts.netloc, base, None, None, None))\n return base\n\n def render_template_to_html(self, template_values, template_file,\n additional_dirs=None):\n courses.Course.set_current(self.get_course())\n models.MemcacheManager.begin_readonly()\n try:\n template = self.get_template(template_file, additional_dirs)\n return jinja2.utils.Markup(\n template.render(template_values, autoescape=True))\n finally:\n models.MemcacheManager.end_readonly()\n courses.Course.clear_current()\n\n def get_template(self, template_file, additional_dirs=None, prefs=None):\n raise NotImplementedError()\n\n @classmethod\n def canonicalize_url_for(cls, app_context, location):\n \"\"\"Adds the current namespace URL prefix to the relative 'location'.\"\"\"\n return app_context.canonicalize_url(location)\n\n def canonicalize_url(self, location):\n if hasattr(self, 'app_context'):\n return self.app_context.canonicalize_url(location)\n else:\n return location\n\n def redirect(self, location, normalize=True):\n if normalize:\n location = self.canonicalize_url(location)\n super(ApplicationHandler, self).redirect(location)\n\n\nclass CourseHandler(ApplicationHandler):\n \"\"\"Base handler that is aware of the current course.\"\"\"\n\n def __init__(self, *args, **kwargs):\n super(CourseHandler, self).__init__(*args, **kwargs)\n self.course = None\n self.template_value = {}\n\n def get_user(self):\n \"\"\"Get the current user.\"\"\"\n return users.get_current_user()\n\n def get_student(self):\n \"\"\"Get the current student.\"\"\"\n user = self.get_user()\n if user is None:\n return None\n return Student.get_by_email(user.email())\n\n def _pick_first_valid_locale_from_list(self, desired_locales):\n available_locales = self.app_context.get_allowed_locales()\n for lang in desired_locales:\n for available_locale in available_locales:\n if lang.lower() == available_locale.lower():\n return lang\n return None\n\n def get_locale_for(self, request, app_context, student=None, prefs=None):\n \"\"\"Returns a locale that should be used by this request.\"\"\"\n hl = request.get('hl')\n if hl and hl in self.app_context.get_allowed_locales():\n return hl\n\n if self.get_user():\n # check if student has any locale labels assigned\n if student is None:\n student = self.get_student()\n if student and student.is_enrolled and not student.is_transient:\n student_label_ids = student.get_labels_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)\n if student_label_ids:\n all_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)\n student_locales = []\n for label in all_labels:\n if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\n continue\n if label.id in student_label_ids:\n student_locales.append(label.title)\n locale = self._pick_first_valid_locale_from_list(\n student_locales)\n if locale:\n return locale\n\n # check if user preferences have been set\n if prefs is None:\n prefs = models.StudentPreferencesDAO.load_or_create()\n if prefs is not None and prefs.locale is not None:\n return prefs.locale\n\n locale_cookie = self.request.cookies.get(GUEST_LOCALE_COOKIE)\n if locale_cookie and (\n locale_cookie in self.app_context.get_allowed_locales()):\n return locale_cookie\n\n # check if accept language has been set\n accept_langs = request.headers.get('Accept-Language')\n locale = self._pick_first_valid_locale_from_list(\n [lang for lang, _ in locales.parse_accept_language(accept_langs)])\n if locale:\n return locale\n\n return app_context.default_locale\n\n def gettext(self, text):\n old_locale = self.app_context.get_current_locale()\n try:\n new_locale = self.get_locale_for(self.request, self.app_context)\n self.app_context.set_current_locale(new_locale)\n return self.app_context.gettext(text)\n finally:\n self.app_context.set_current_locale(old_locale)\n\n def get_course(self):\n \"\"\"Get current course.\"\"\"\n if not self.course:\n self.course = Course(self)\n return self.course\n\n def get_track_matching_student(self, student):\n \"\"\"Gets units whose labels match those on the student.\"\"\"\n return self.get_course().get_track_matching_student(student)\n\n def get_progress_tracker(self):\n \"\"\"Gets the progress tracker for the course.\"\"\"\n return self.get_course().get_progress_tracker()\n\n def find_unit_by_id(self, unit_id):\n \"\"\"Gets a unit with a specific id or fails with an exception.\"\"\"\n return self.get_course().find_unit_by_id(unit_id)\n\n def get_units(self):\n \"\"\"Gets all units in the course.\"\"\"\n return self.get_course().get_units()\n\n def get_lessons(self, unit_id):\n \"\"\"Gets all lessons (in order) in the specific course unit.\"\"\"\n return self.get_course().get_lessons(unit_id)\n\n @classmethod\n def _cache_debug_info(cls, cache):\n items = []\n for key, entry in cache.items.iteritems():\n updated_on = None\n if entry:\n updated_on = entry.updated_on()\n items.append('entry: %s, %s' % (key, updated_on))\n return items\n\n @classmethod\n def debug_info(cls):\n \"\"\"Generates a debug info for this request.\"\"\"\n\n # we only want to run import if this method is called; most of the\n # it is not; we also have circular import dependencies if we were to\n # put them at the top...\n from models import vfs\n from modules.i18n_dashboard import i18n_dashboard\n vfs_items = cls._cache_debug_info(\n vfs.ProcessScopedVfsCache.instance().cache)\n rb_items = cls._cache_debug_info(\n i18n_dashboard.ProcessScopedResourceBundleCache.instance().cache)\n return ''.join([\n '\\nDebug Info: %s' % datetime.datetime.utcnow(),\n '\\n\\nServer Environment Variables: %s' % '\\n'.join([\n 'item: %s, %s' % (key, value)\n for key, value in os.environ.iteritems()]),\n '\\n\\nVfsCacheKeys:\\n%s' % '\\n'.join(vfs_items),\n '\\n\\nResourceBundlesCache:\\n%s' % '\\n'.join(rb_items),\n ])\n\n def init_template_values(self, environ, prefs=None):\n \"\"\"Initializes template variables with common values.\"\"\"\n self.template_value[COURSE_INFO_KEY] = environ\n self.template_value[\n 'page_locale'] = self.app_context.get_current_locale()\n self.template_value['html_hooks'] = HtmlHooks(\n self.get_course(), prefs=prefs)\n self.template_value['is_course_admin'] = Roles.is_course_admin(\n self.app_context)\n self.template_value['can_see_drafts'] = (\n courses_module.courses.can_see_drafts(self.app_context))\n self.template_value[\n 'is_read_write_course'] = self.app_context.fs.is_read_write()\n self.template_value['is_super_admin'] = Roles.is_super_admin()\n self.template_value[COURSE_BASE_KEY] = self.get_base_href(self)\n self.template_value['left_links'] = []\n for func in self.LEFT_LINKS:\n self.template_value['left_links'].extend(func(self.app_context))\n self.template_value['right_links'] = []\n for func in self.RIGHT_LINKS:\n self.template_value['right_links'].extend(func(self.app_context))\n\n if not prefs:\n prefs = models.StudentPreferencesDAO.load_or_create()\n self.template_value['student_preferences'] = prefs\n\n if (Roles.is_course_admin(self.app_context) and\n not appengine_config.PRODUCTION_MODE and\n prefs and prefs.show_jinja_context):\n\n @jinja2.contextfunction\n def get_context(context):\n return context\n self.template_value['context'] = get_context\n\n if CAN_PUT_DEBUG_INFO_INTO_PAGES.value:\n self.template_value['debug_info'] = self.debug_info()\n\n self.template_value[\n 'extra_global_css_urls'] = self.EXTRA_GLOBAL_CSS_URLS\n self.template_value[\n 'extra_global_js_urls'] = self.EXTRA_GLOBAL_JS_URLS\n\n # Common template information for the locale picker (only shown for\n # user in session)\n can_student_change_locale = (\n self.get_course().get_course_setting('can_student_change_locale')\n or self.get_course().app_context.can_pick_all_locales())\n if can_student_change_locale:\n self.template_value['available_locales'] = [\n {\n 'name': locales.get_locale_display_name(loc),\n 'value': loc\n } for loc in self.app_context.get_allowed_locales()]\n self.template_value['locale_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token(\n StudentLocaleRESTHandler.XSRF_TOKEN_NAME))\n self.template_value['selected_locale'] = self.get_locale_for(\n self.request, self.app_context, prefs=prefs)\n\n def get_template(self, template_file, additional_dirs=None, prefs=None):\n \"\"\"Computes location of template files for the current namespace.\"\"\"\n\n _p = self.app_context.get_environ()\n self.init_template_values(_p, prefs=prefs)\n template_environ = self.app_context.get_template_environ(\n self.app_context.get_current_locale(), additional_dirs)\n template_environ.filters[\n 'gcb_tags'] = jinja_utils.get_gcb_tags_filter(self)\n template_environ.globals.update({\n 'display_unit_title': (\n lambda unit: resources_display.display_unit_title(\n unit, self.app_context)),\n 'display_short_unit_title': (\n lambda unit: resources_display.display_short_unit_title(\n unit, self.app_context)),\n 'display_lesson_title': (\n lambda unit, lesson: resources_display.display_lesson_title(\n unit, lesson, self.app_context))})\n\n return template_environ.get_template(template_file)\n\n\nclass BaseHandler(CourseHandler):\n \"\"\"Base handler.\"\"\"\n\n def __init__(self, *args, **kwargs):\n super(BaseHandler, self).__init__(*args, **kwargs)\n self._old_locale = None\n\n def before_method(self, verb, path):\n \"\"\"Modify global locale value for the duration of this handler.\"\"\"\n self._old_locale = self.app_context.get_current_locale()\n new_locale = self.get_locale_for(self.request, self.app_context)\n self.app_context.set_current_locale(new_locale)\n\n def after_method(self, verb, path):\n \"\"\"Restore original global locale value.\"\"\"\n self.app_context.set_current_locale(self._old_locale)\n\n def personalize_page_and_get_user(self):\n \"\"\"If the user exists, add personalized fields to the navbar.\"\"\"\n user = self.get_user()\n PageInitializerService.get().initialize(self.template_value)\n\n if hasattr(self, 'app_context'):\n self.template_value['can_register'] = self.app_context.get_environ(\n )['reg_form']['can_register']\n\n if user:\n email = user.email()\n self.template_value['email_no_domain_name'] = (\n email[:email.find('@')] if '@' in email else email)\n self.template_value['email'] = email\n self.template_value['logoutUrl'] = (\n users.create_logout_url(self.request.uri))\n self.template_value['transient_student'] = False\n\n # configure page events\n self.template_value['record_tag_events'] = (\n CAN_PERSIST_TAG_EVENTS.value)\n self.template_value['record_page_events'] = (\n CAN_PERSIST_PAGE_EVENTS.value)\n self.template_value['record_events'] = (\n CAN_PERSIST_ACTIVITY_EVENTS.value)\n self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))\n else:\n self.template_value['loginUrl'] = users.create_login_url(\n self.request.uri)\n self.template_value['transient_student'] = True\n return None\n\n return user\n\n def personalize_page_and_get_enrolled(\n self, supports_transient_student=False):\n \"\"\"If the user is enrolled, add personalized fields to the navbar.\"\"\"\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n if not student:\n self.template_value['transient_student'] = True\n student = TRANSIENT_STUDENT\n\n if student.is_transient:\n if supports_transient_student and (\n self.app_context.get_environ()['course']['browsable']):\n return TRANSIENT_STUDENT\n elif user is None:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False\n )\n return None\n else:\n self.redirect('/preview')\n return None\n\n # Patch Student models which (for legacy reasons) do not have a user_id\n # attribute set.\n if not student.user_id:\n student.user_id = user.user_id()\n student.put()\n\n return student\n\n def assert_xsrf_token_or_fail(self, request, action):\n \"\"\"Asserts the current request has proper XSRF token or fails.\"\"\"\n token = request.get('xsrf_token')\n if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\n self.error(403)\n return False\n return True\n\n @appengine_config.timeandlog('BaseHandler.render')\n def render(self, template_file, additional_dirs=None):\n \"\"\"Renders a template.\"\"\"\n prefs = models.StudentPreferencesDAO.load_or_create()\n\n courses.Course.set_current(self.get_course())\n models.MemcacheManager.begin_readonly()\n try:\n template = self.get_template(\n template_file, additional_dirs=additional_dirs, prefs=prefs)\n self.response.out.write(template.render(self.template_value))\n finally:\n models.MemcacheManager.end_readonly()\n courses.Course.clear_current()\n\n # If the page displayed successfully, save the location for registered\n # students so future visits to the course's base URL sends the student\n # to the most-recently-visited page.\n # TODO(psimakov): method called render() must not have mutations\n user = self.get_user()\n if user:\n student = models.Student.get_enrolled_student_by_email(\n user.email())\n if student:\n prefs.last_location = self.request.path_qs\n models.StudentPreferencesDAO.save(prefs)\n\n def get_redirect_location(self, student):\n if (not student.is_transient and\n (self.request.path == self.app_context.get_slug() or\n self.request.path == self.app_context.get_slug() + '/' or\n self.request.get('use_last_location'))): # happens on '/' page\n prefs = models.StudentPreferencesDAO.load_or_create()\n # Belt-and-suspenders: prevent infinite self-redirects\n if (prefs.last_location and\n prefs.last_location != self.request.path_qs):\n return prefs.last_location\n return None\n\n\nclass BaseRESTHandler(CourseHandler):\n \"\"\"Base REST handler.\"\"\"\n\n def __init__(self, *args, **kwargs):\n super(BaseRESTHandler, self).__init__(*args, **kwargs)\n\n def assert_xsrf_token_or_fail(self, token_dict, action, args_dict):\n \"\"\"Asserts that current request has proper XSRF token or fails.\"\"\"\n token = token_dict.get('xsrf_token')\n if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\n transforms.send_json_response(\n self, 403,\n 'Bad XSRF token. Please reload the page and try again',\n args_dict)\n return False\n return True\n\n def validation_error(self, message, key=None):\n \"\"\"Deliver a validation message.\"\"\"\n if key:\n transforms.send_json_response(\n self, 412, message, payload_dict={'key': key})\n else:\n transforms.send_json_response(self, 412, message)\n\n\nclass PreviewHandler(BaseHandler):\n \"\"\"Handler for viewing course preview.\"\"\"\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n if not student:\n student = TRANSIENT_STUDENT\n\n # If the course is browsable, or the student is logged in and\n # registered, redirect to the main course page.\n if ((student and not student.is_transient) or\n self.app_context.get_environ()['course']['browsable']):\n self.redirect('/course')\n return\n\n self.template_value['transient_student'] = True\n self.template_value['can_register'] = self.app_context.get_environ(\n )['reg_form']['can_register']\n self.template_value['navbar'] = {'course': True}\n self.template_value['units'] = self.get_units()\n self.template_value['show_registration_page'] = True\n\n course = self.app_context.get_environ()['course']\n self.template_value['video_exists'] = bool(\n 'main_video' in course and\n 'url' in course['main_video'] and\n course['main_video']['url'])\n self.template_value['image_exists'] = bool(\n 'main_image' in course and\n 'url' in course['main_image'] and\n course['main_image']['url'])\n\n if user:\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\n additional_registration_fields = self.app_context.get_environ(\n )['reg_form']['additional_registration_fields']\n if profile is not None and not additional_registration_fields:\n self.template_value['show_registration_page'] = False\n self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))\n self.render('preview.html')\n\n\nclass RegisterHandler(BaseHandler):\n \"\"\"Handler for course registration.\"\"\"\n\n def get(self):\n \"\"\"Handles GET request.\"\"\"\n user = self.personalize_page_and_get_user()\n if not user:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False)\n return\n\n student = Student.get_enrolled_student_by_email(user.email())\n if student:\n self.redirect('/course')\n return\n\n can_register = self.app_context.get_environ(\n )['reg_form']['can_register']\n if not can_register:\n self.redirect('/course#registration_closed')\n return\n\n # pre-fill nick name from the profile if available\n self.template_value['current_name'] = ''\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\n if profile and profile.nick_name:\n self.template_value['current_name'] = profile.nick_name\n\n self.template_value['navbar'] = {}\n self.template_value['transient_student'] = True\n self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))\n\n self.render('register.html')\n\n def post(self):\n \"\"\"Handles POST requests.\"\"\"\n user = self.personalize_page_and_get_user()\n if not user:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False)\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'register-post'):\n return\n\n can_register = self.app_context.get_environ(\n )['reg_form']['can_register']\n if not can_register:\n self.redirect('/course#registration_closed')\n return\n\n if 'name_from_profile' in self.request.POST.keys():\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\n name = profile.nick_name\n else:\n name = self.request.get('form01')\n\n Student.add_new_student_for_current_user(\n name, transforms.dumps(self.request.POST.items()), self,\n labels=self.request.get('labels'))\n\n # Render registration confirmation page\n self.redirect('/course#registration_confirmation')\n\n\nclass ForumHandler(BaseHandler):\n \"\"\"Handler for forum page.\"\"\"\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return\n\n self.template_value['navbar'] = {'forum': True}\n self.render('forum.html')\n\n\nclass StudentProfileHandler(BaseHandler):\n \"\"\"Handles the click to 'Progress' link in the nav bar.\"\"\"\n\n # A list of functions which will provide extra rows in the Student Progress\n # table. Each function will be passed the current handler, student, and\n # course object and should return a pair of strings; the first being the\n # title of the data and the second the value to display.\n EXTRA_STUDENT_DATA_PROVIDERS = []\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n track_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\n\n course = self.get_course()\n units = []\n for unit in course.get_units():\n # Don't show assessments that are part of units.\n if course.get_parent_unit(unit.unit_id):\n continue\n units.append({\n 'unit_id': unit.unit_id,\n 'title': unit.title,\n 'labels': list(course.get_unit_track_labels(unit)),\n })\n\n name = student.name\n profile = student.profile\n if profile:\n name = profile.nick_name\n student_labels = student.get_labels_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\n self.template_value['navbar'] = {'progress': True}\n self.template_value['student'] = student\n self.template_value['student_name'] = name\n self.template_value['date_enrolled'] = student.enrolled_on.strftime(\n HUMAN_READABLE_DATE_FORMAT)\n self.template_value['score_list'] = course.get_all_scores(student)\n self.template_value['overall_score'] = course.get_overall_score(student)\n self.template_value['student_edit_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('student-edit'))\n self.template_value['can_edit_name'] = (\n not models.CAN_SHARE_STUDENT_PROFILE.value)\n self.template_value['track_labels'] = track_labels\n self.template_value['student_labels'] = student_labels\n self.template_value['units'] = units\n self.template_value['track_env'] = transforms.dumps({\n 'label_ids': [label.id for label in track_labels],\n 'units': units\n })\n\n # Append any extra data which is provided by modules\n extra_student_data = []\n for data_provider in self.EXTRA_STUDENT_DATA_PROVIDERS:\n extra_student_data.append(data_provider(self, student, course))\n self.template_value['extra_student_data'] = extra_student_data\n\n self.render('student_profile.html')\n\n\nclass StudentEditStudentHandler(BaseHandler):\n \"\"\"Handles edits to student records by students.\"\"\"\n\n def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\n return\n\n Student.rename_current(self.request.get('name'))\n\n self.redirect('/student/home')\n\n\nclass StudentSetTracksHandler(BaseHandler):\n \"\"\"Handles submission of student tracks selections.\"\"\"\n\n def post(self):\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\n return\n\n all_track_label_ids = models.LabelDAO.get_set_of_ids_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\n new_track_label_ids = set(\n [int(label_id)\n for label_id in self.request.get_all('labels')\n if label_id and int(label_id) in all_track_label_ids])\n student_label_ids = set(\n [int(label_id)\n for label_id in common_utils.text_to_list(student.labels)\n if label_id])\n\n # Remove all existing track (and only track) labels from student,\n # then merge in selected set from form.\n student_label_ids = student_label_ids.difference(all_track_label_ids)\n student_label_ids = student_label_ids.union(new_track_label_ids)\n models.Student.set_labels_for_current(\n common_utils.list_to_text(list(student_label_ids)))\n\n self.redirect('/student/home')\n\n\nclass StudentUnenrollHandler(BaseHandler):\n \"\"\"Handler for students to unenroll themselves.\"\"\"\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n self.template_value['student'] = student\n self.template_value['navbar'] = {}\n self.template_value['student_unenroll_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('student-unenroll'))\n self.render('unenroll_confirmation_check.html')\n\n def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'student-unenroll'):\n return\n\n Student.set_enrollment_status_for_current(False)\n\n self.template_value['navbar'] = {}\n self.template_value['transient_student'] = True\n self.render('unenroll_confirmation.html')\n\n\nclass StudentLocaleRESTHandler(BaseRESTHandler):\n \"\"\"REST handler to manage student setting their preferred locale.\"\"\"\n\n XSRF_TOKEN_NAME = 'locales'\n\n def post(self):\n request = transforms.loads(self.request.get('request'))\n if not self.assert_xsrf_token_or_fail(\n request, self.XSRF_TOKEN_NAME, {}):\n return\n\n selected = request['payload']['selected']\n if selected not in self.app_context.get_allowed_locales():\n transforms.send_json_response(self, 401, 'Bad locale')\n return\n\n prefs = models.StudentPreferencesDAO.load_or_create()\n if prefs:\n # Store locale in StudentPreferences for logged-in users\n prefs.locale = selected\n models.StudentPreferencesDAO.save(prefs)\n else:\n # Store locale in cookie for out-of-session users\n self.response.set_cookie(\n GUEST_LOCALE_COOKIE, selected,\n max_age=GUEST_LOCALE_COOKIE_MAX_AGE_SEC)\n\n transforms.send_json_response(self, 200, 'OK')\n"},"vector":{"kind":"list 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related to course content.\"\"\"","__author__ = 'Saifu Angto (saifu@google.com)'","import datetime","import HTMLParser","import os","import re","import urllib","import urlparse","import jinja2","import sites","import webapp2","import appengine_config","from common import jinja_utils","from common import locales","from common import resource","from common import safe_dom","from common import schema_fields","from common import tags","from common import utils as common_utils","from common.crypto import XsrfTokenManager","from models import courses","from models import resources_display","from models import models","from models import transforms","from models.config import ConfigProperty","from models.courses import Course","from models.models import Student","from models.models import StudentProfileDAO","from models.models import TransientStudent","from models.roles import Roles","from modules import courses as courses_module","from google.appengine.api import users","COURSE_BASE_KEY = 'gcb_course_base'","COURSE_INFO_KEY = 'course_info'","GUEST_LOCALE_COOKIE = 'cb-user-locale'","GUEST_LOCALE_COOKIE_MAX_AGE_SEC = 48 * 60 * 60 # 48 hours","TRANSIENT_STUDENT = TransientStudent()","CAN_PUT_DEBUG_INFO_INTO_PAGES = ConfigProperty(\n 'gcb_can_put_debug_info_into_pages', bool, (\n 'Whether or not to put debugging information into the web pages. '\n 'This may be useful for debugging purposes if you develop custom '\n 'Course Builder features or extensions.'), False)","CAN_PERSIST_PAGE_EVENTS = ConfigProperty(\n 'gcb_can_persist_page_events', bool, (\n 'Whether or not to record student page interactions in a '\n 'datastore. Without event recording, you cannot analyze student '\n 'page interactions. On the other hand, no event recording reduces '\n 'the number of datastore operations and minimizes the use of Google '\n 'App Engine quota. Turn event recording on if you want to analyze '\n 'this data.'),","CAN_PERSIST_TAG_EVENTS = ConfigProperty(\n 'gcb_can_persist_tag_events', bool, (\n 'Whether or not to record student tag interactions in a '\n 'datastore. Without event recording, you cannot analyze student '\n 'tag interactions. On the other hand, no event recording reduces '\n 'the number of datastore operations and minimizes the use of Google '\n 'App Engine quota. Turn event recording on if you want to analyze '\n 'this data.'),","CAN_PERSIST_ACTIVITY_EVENTS = ConfigProperty(\n 'gcb_can_persist_activity_events', bool, (\n 'Whether or not to record student activity interactions in a '\n 'datastore. Without event recording, you cannot analyze student '\n 'activity interactions. On the other hand, no event recording reduces '\n 'the number of datastore operations and minimizes the use of Google '\n 'App Engine quota. Turn event recording on if you want to analyze '\n 'this data.'),","HUMAN_READABLE_DATETIME_FORMAT = '%Y-%m-%d, %H:%M UTC'","HUMAN_READABLE_DATE_FORMAT = '%Y-%m-%d'","HUMAN_READABLE_TIME_FORMAT = '%H:%M:%S UTC'","class PageInitializer(object):\n \"\"\"Abstract class that defines an interface to initialize page headers.\"\"\"\n\n @classmethod\n def initialize(cls, template_value):\n raise NotImplementedError"," \"\"\"Abstract class that defines an interface to initialize page headers.\"\"\""," def initialize(cls, template_value):\n raise NotImplementedError","class DefaultPageInitializer(PageInitializer):\n \"\"\"Implements default page initializer.\"\"\"\n\n @classmethod\n def initialize(cls, template_value):\n pass"," \"\"\"Implements default page initializer.\"\"\""," def initialize(cls, template_value):\n pass","class PageInitializerService(object):\n \"\"\"Installs the appropriate PageInitializer.\"\"\"\n _page_initializer = DefaultPageInitializer\n\n @classmethod\n def get(cls):\n return cls._page_initializer"," \"\"\"Installs the appropriate PageInitializer.\"\"\""," _page_initializer = DefaultPageInitializer"," def get(cls):\n return cls._page_initializer"," return cls._page_initializer"," def set(cls, page_initializer):\n cls._page_initializer = page_initializer"," cls._page_initializer = page_initializer","class ReflectiveRequestHandler(object):\n \"\"\"Uses reflection to handle custom get() and post() requests.\n\n Use this class as a mix-in with any webapp2.RequestHandler to allow request\n dispatching to multiple get() and post() methods based on the 'action'\n parameter.\n\n Open your existing webapp2.RequestHandler, add this class as a mix-in."," \"\"\"Uses reflection to handle custom get() and post() requests.\n\n Use this class as a mix-in with any webapp2.RequestHandler to allow request\n dispatching to multiple get() and post() methods based on the 'action'\n parameter.\n\n Open your existing webapp2.RequestHandler, add this class as a mix-in.\n Define the following class variables:"," def create_xsrf_token(self, action):\n return XsrfTokenManager.create_xsrf_token(action)"," return XsrfTokenManager.create_xsrf_token(action)"," def get(self):\n \"\"\"Handles GET.\"\"\"\n action = self.request.get('action')\n if not action:\n action = self.default_action\n\n if action not in self.get_actions:\n self.error(404)"," \"\"\"Handles GET.\"\"\""," action = self.request.get('action')"," if not action:\n action = self.default_action"," action = self.default_action"," if action not in self.get_actions:\n self.error(404)\n return"," self.error(404)"," return"," handler = getattr(self, 'get_%s' % action)"," if not handler:\n self.error(404)\n return"," self.error(404)"," return"," return handler()"," def post(self):\n \"\"\"Handles POST.\"\"\"\n action = self.request.get('action')\n if not action or action not in self.post_actions:\n self.error(404)\n return\n\n handler = getattr(self, 'post_%s' % action)"," \"\"\"Handles POST.\"\"\""," action = self.request.get('action')"," if not action or action not in self.post_actions:\n self.error(404)\n return"," self.error(404)"," return"," handler = getattr(self, 'post_%s' % action)"," if not handler:\n self.error(404)\n return"," self.error(404)"," return"," xsrf_token = self.request.get('xsrf_token')"," if not XsrfTokenManager.is_xsrf_token_valid(xsrf_token, action):\n self.error(403)\n return"," self.error(403)"," return"," return handler()","class HtmlHooks(object):\n\n # As of Q1, 2015, hook points moved from \"where-ever in the course\n # settings is convenient\" to \"Anywhere under the top-level 'html_hooks'\n # item\". Older courses may have these items still referenced from the\n # root of the settings hierarchy, rather than under \"html_hooks\". Rather\n # than modifying the course settings, we simply also look for these legacy\n # items in the old locations."," BACKWARD_COMPATIBILITY_ITEMS = [\n 'base.before_head_tag_ends',\n 'base.after_body_tag_begins',\n 'base.after_navbar_begins',\n 'base.before_navbar_ends',\n 'base.after_top_content_ends',\n 'base.after_main_content_ends',\n 'base.before_body_tag_ends',"," BACKWARD_COMPATIBILITY_SEPARATOR = ':'"," HTML_HOOKS = 'html_hooks'"," POST_LOAD_CALLBACKS = []"," SEPARATOR = '.'"," def __init__(self, course, prefs=None):\n if prefs is None:\n prefs = models.StudentPreferencesDAO.load_or_create()\n\n # Fetch all the hooks. Since these are coming from the course\n # settings, getting them all is not too inefficient.\n self.content = self.get_all(course)"," if prefs is None:\n prefs = models.StudentPreferencesDAO.load_or_create()"," prefs = models.StudentPreferencesDAO.load_or_create()"," self.content = self.get_all(course)"," for callback in self.POST_LOAD_CALLBACKS:\n callback(self.content)"," callback(self.content)"," self.show_admin_content = False"," if (prefs and prefs.show_hooks and\n Roles.is_course_admin(course.app_context)):\n self.show_admin_content = True"," self.show_admin_content = True"," if course.version == courses.CourseModel12.VERSION:\n self.show_admin_content = False"," self.show_admin_content = False"," if self.show_admin_content:\n self.update_for_admin()"," self.update_for_admin()"," def update_for_admin(self):\n \"\"\"Show HTML hooks with non-blank text if admin has edit pref set.\n\n If we are displaying to a course admin, and the admin has enabled\n a preference, we want to ensure that each HTML hook point has some\n non-blank text in it. (Hooks often carry only scripts, or other\n non-displaying tags). Having some actual text in the tag forces\n browsers to give it a visible component on the page. Clicking on"," \"\"\"Show HTML hooks with non-blank text if admin has edit pref set.\n\n If we are displaying to a course admin, and the admin has enabled\n a preference, we want to ensure that each HTML hook point has some\n non-blank text in it. (Hooks often carry only scripts, or other\n non-displaying tags). Having some actual text in the tag forces\n browsers to give it a visible component on the page. Clicking on\n this component permits the admin to edit the item."," class VisibleHtmlParser(HTMLParser.HTMLParser):\n\n def __init__(self, *args, **kwargs):\n HTMLParser.HTMLParser.__init__(self, *args, **kwargs)\n self._has_visible_content = False\n\n def handle_starttag(self, unused_tag, unused_attrs):\n # Not 100% guaranteed; e.g., <p> does not guarantee content,"," def __init__(self, *args, **kwargs):\n HTMLParser.HTMLParser.__init__(self, *args, **kwargs)\n self._has_visible_content = False"," HTMLParser.HTMLParser.__init__(self, *args, **kwargs)"," self._has_visible_content = False"," def handle_starttag(self, unused_tag, unused_attrs):\n # Not 100% guaranteed; e.g., <p> does not guarantee content,\n # but <button> does -- even if the <button> does not contain\n # data/entity/char. I don't want to spend a lot of logic\n # looking for specific cases, and this behavior is enough.\n self._has_visible_content = True"," self._has_visible_content = True"," def handle_data(self, data):\n if data.strip():\n self._has_visible_content = True"," if data.strip():\n self._has_visible_content = True"," self._has_visible_content = True"," def handle_entityref(self, unused_data):\n self._has_visible_content = True"," self._has_visible_content = True"," def handle_charref(self, unused_data):\n self._has_visible_content = True"," self._has_visible_content = True"," def has_visible_content(self):\n return self._has_visible_content"," return self._has_visible_content"," def reset(self):\n HTMLParser.HTMLParser.reset(self)\n self._has_visible_content = False"," HTMLParser.HTMLParser.reset(self)"," self._has_visible_content = False"," parser = VisibleHtmlParser()"," for key, value in self.content.iteritems():\n parser.reset()\n parser.feed(value)\n parser.close()\n if not parser.has_visible_content():\n self.content[key] += key"," parser.reset()"," parser.feed(value)"," parser.close()"," if not parser.has_visible_content():\n self.content[key] += key"," def _get_content_from(cls, name, environ):\n # Look up desired content chunk in course.yaml dict/sub-dict.\n content = None\n for part in name.split(cls.SEPARATOR):\n if part in environ:\n item = environ[part]\n if isinstance(item, basestring):\n content = item"," content = None"," for part in name.split(cls.SEPARATOR):\n if part in environ:\n item = environ[part]\n if isinstance(item, basestring):\n content = item\n else:\n environ = item"," if part in environ:\n item = environ[part]\n if isinstance(item, basestring):\n content = item\n else:\n environ = item"," item = environ[part]"," if isinstance(item, basestring):\n content = item\n else:\n environ = item"," content = item"," environ = item"," return content"," def get_content(cls, course, name):\n environ = course.app_context.get_environ()\n\n # Prefer getting hook content from html_hooks sub-dict within\n # course settings.\n content = cls._get_content_from(name, environ.get(cls.HTML_HOOKS, {}))\n\n # For backward compatibility, fall back to looking in top level."," environ = course.app_context.get_environ()"," content = cls._get_content_from(name, environ.get(cls.HTML_HOOKS, {}))"," if content is None:\n content = cls._get_content_from(name, environ)"," content = cls._get_content_from(name, environ)"," return content"," def get_all(cls, course):\n \"\"\"Get all hook names and associated content.\"\"\"\n ret = {}\n # Look through the backward-compatibility items. These may not all\n # exist, but pick up whatever does already exist.\n environ = course.app_context.get_environ()\n for backward_compatibility_item in cls.BACKWARD_COMPATIBILITY_ITEMS:\n value = cls._get_content_from(backward_compatibility_item, environ)"," \"\"\"Get all hook names and associated content.\"\"\""," ret = {}"," environ = course.app_context.get_environ()"," for backward_compatibility_item in cls.BACKWARD_COMPATIBILITY_ITEMS:\n value = cls._get_content_from(backward_compatibility_item, environ)\n if value:\n ret[backward_compatibility_item] = value"," value = cls._get_content_from(backward_compatibility_item, environ)"," if value:\n ret[backward_compatibility_item] = value"," ret[backward_compatibility_item] = value"," def find_leaves(environ, parent_names, ret):\n for name, value in environ.iteritems():\n if isinstance(value, basestring):\n full_name = cls.SEPARATOR.join(parent_names + [name])\n ret[full_name] = value\n elif isinstance(value, dict):\n find_leaves(value, parent_names + [name], ret)"," for name, value in environ.iteritems():\n if isinstance(value, basestring):\n full_name = cls.SEPARATOR.join(parent_names + [name])\n ret[full_name] = value\n elif isinstance(value, dict):\n find_leaves(value, parent_names + [name], ret)"," if isinstance(value, basestring):\n full_name = cls.SEPARATOR.join(parent_names + [name])\n ret[full_name] = value\n elif isinstance(value, dict):\n find_leaves(value, parent_names + [name], ret)"," full_name = cls.SEPARATOR.join(parent_names + [name])"," ret[full_name] = value"," elif isinstance(value, dict):\n find_leaves(value, parent_names + [name], ret)"," find_leaves(value, parent_names + [name], ret)"," find_leaves(environ[cls.HTML_HOOKS], [], ret)"," return ret"," def insert(self, name):\n name = name.replace(self.BACKWARD_COMPATIBILITY_SEPARATOR,\n self.SEPARATOR)\n content = self.content.get(name, '')\n\n # Add the content to the page in response to the hook call.\n hook_div = safe_dom.Element('div', className='gcb-html-hook',\n id=re.sub('[^a-zA-Z-]', '-', name))"," name = name.replace(self.BACKWARD_COMPATIBILITY_SEPARATOR,\n self.SEPARATOR)"," content = self.content.get(name, '')"," hook_div = safe_dom.Element('div', className='gcb-html-hook',\n id=re.sub('[^a-zA-Z-]', '-', name))"," hook_div.add_child(tags.html_to_safe_dom(content, self))"," if self.show_admin_content:\n hook_div.add_attribute(onclick='gcb_edit_hook_point(\"%s\")' % name)\n hook_div.add_attribute(className='gcb-html-hook-edit')"," hook_div.add_attribute(onclick='gcb_edit_hook_point(\"%s\")' % name)"," hook_div.add_attribute(className='gcb-html-hook-edit')"," return jinja2.Markup(hook_div.sanitized)","class ResourceHtmlHook(resource.AbstractResourceHandler):\n \"\"\"Provide a class to allow treating this resource type polymorphically.\"\"\"\n\n TYPE = 'html_hook'\n NAME = 'name'\n CONTENT = 'content'\n\n @classmethod"," \"\"\"Provide a class to allow treating this resource type polymorphically.\"\"\""," TYPE = 'html_hook'"," NAME = 'name'"," CONTENT = 'content'"," def get_resource(cls, course, key):\n return cls.get_data_dict(course, key)"," return cls.get_data_dict(course, key)"," def get_resource_title(cls, rsrc):\n return rsrc[cls.NAME]"," return rsrc[cls.NAME]"," def get_schema(cls, unused_course, unused_key):\n ret = schema_fields.FieldRegistry(\n 'HTML Hooks',\n description='HTML fragments that can be inserted at arbitrary '\n 'points in student-visible pages using the syntax: '\n ' {{ html_hooks.insert(\\'name_of_hook_section\\') }} ')\n ret.add_property(schema_fields.SchemaField(\n cls.NAME, 'Name', 'string', i18n=False))"," ret = schema_fields.FieldRegistry(\n 'HTML Hooks',\n description='HTML fragments that can be inserted at arbitrary '\n 'points in student-visible pages using the syntax: '\n ' {{ html_hooks.insert(\\'name_of_hook_section\\') }} ')"," ret.add_property(schema_fields.SchemaField(\n cls.NAME, 'Name', 'string', i18n=False))"," ret.add_property(schema_fields.SchemaField(\n cls.CONTENT, 'Content', 'html', editable=True,\n description='HTML content injected into page where hook '\n 'is referenced.'))"," return ret"," def to_data_dict(cls, key, content):\n return {\n cls.NAME: key,\n cls.CONTENT: content,\n }"," return {\n cls.NAME: key,\n cls.CONTENT: content,\n }"," def get_data_dict(cls, course, key):\n return cls.to_data_dict(key, HtmlHooks.get_content(course, key))"," return cls.to_data_dict(key, HtmlHooks.get_content(course, key))"," def get_view_url(cls, rsrc):\n return None"," return None"," def get_edit_url(cls, key):\n return 'dashboard?%s' % urllib.urlencode({\n 'action': 'edit_html_hook',\n 'key': key\n })"," return 'dashboard?%s' % urllib.urlencode({\n 'action': 'edit_html_hook',\n 'key': key\n })"," def get_all(cls, course):\n \"\"\"Returns key/value pairs of resource.Key -> <html-hook resource>\"\"\"\n\n ret = {}\n for name, content in HtmlHooks.get_all(course).iteritems():\n key = resource.Key(cls.TYPE, name, course)\n value = {\n cls.NAME: name,"," \"\"\"Returns key/value pairs of resource.Key -> <html-hook resource>\"\"\""," ret = {}"," for name, content in HtmlHooks.get_all(course).iteritems():\n key = resource.Key(cls.TYPE, name, course)\n value = {\n cls.NAME: name,\n cls.CONTENT: content\n }\n ret[key] = value"," key = resource.Key(cls.TYPE, name, course)"," value = {\n cls.NAME: name,\n cls.CONTENT: content\n }"," ret[key] = value"," return ret","class ApplicationHandler(webapp2.RequestHandler):\n \"\"\"A handler that is aware of the application context.\"\"\"\n\n LEFT_LINKS = []\n RIGHT_LINKS = []\n EXTRA_GLOBAL_CSS_URLS = []\n EXTRA_GLOBAL_JS_URLS = []"," \"\"\"A handler that is aware of the application context.\"\"\""," LEFT_LINKS = []"," RIGHT_LINKS = []"," EXTRA_GLOBAL_CSS_URLS = []"," EXTRA_GLOBAL_JS_URLS = []"," def is_absolute(cls, url):\n return sites.ApplicationContext.is_absolute_url(url)"," return sites.ApplicationContext.is_absolute_url(url)"," def get_base_href(cls, handler):\n \"\"\"Computes current course <base> href.\"\"\"\n base = handler.app_context.get_slug()\n if not base.endswith('/'):\n base = '%s/' % base\n\n # For IE to work with the <base> tag, its href must be an absolute URL.\n if not sites.ApplicationContext.is_absolute_url(base):"," \"\"\"Computes current course <base> href.\"\"\""," base = handler.app_context.get_slug()"," if not base.endswith('/'):\n base = '%s/' % base"," base = '%s/' % base"," if not sites.ApplicationContext.is_absolute_url(base):\n parts = urlparse.urlparse(handler.request.url)\n base = urlparse.urlunparse(\n (parts.scheme, parts.netloc, base, None, None, None))"," parts = urlparse.urlparse(handler.request.url)"," base = urlparse.urlunparse(\n (parts.scheme, parts.netloc, base, None, None, None))"," return base"," def render_template_to_html(self, template_values, template_file,\n additional_dirs=None):\n courses.Course.set_current(self.get_course())\n models.MemcacheManager.begin_readonly()\n try:\n template = self.get_template(template_file, additional_dirs)\n return jinja2.utils.Markup(\n template.render(template_values, autoescape=True))"," courses.Course.set_current(self.get_course())"," models.MemcacheManager.begin_readonly()"," try:\n template = self.get_template(template_file, additional_dirs)\n return jinja2.utils.Markup(\n template.render(template_values, autoescape=True))\n finally:\n models.MemcacheManager.end_readonly()\n courses.Course.clear_current()"," template = self.get_template(template_file, additional_dirs)"," return jinja2.utils.Markup(\n template.render(template_values, autoescape=True))"," models.MemcacheManager.end_readonly()"," courses.Course.clear_current()"," def get_template(self, template_file, additional_dirs=None, prefs=None):\n raise NotImplementedError()"," def canonicalize_url_for(cls, app_context, location):\n \"\"\"Adds the current namespace URL prefix to the relative 'location'.\"\"\"\n return app_context.canonicalize_url(location)"," \"\"\"Adds the current namespace URL prefix to the relative 'location'.\"\"\""," return app_context.canonicalize_url(location)"," def canonicalize_url(self, location):\n if hasattr(self, 'app_context'):\n return self.app_context.canonicalize_url(location)\n else:\n return location"," if hasattr(self, 'app_context'):\n return self.app_context.canonicalize_url(location)\n else:\n return location"," return self.app_context.canonicalize_url(location)"," return location"," def redirect(self, location, normalize=True):\n if normalize:\n location = self.canonicalize_url(location)\n super(ApplicationHandler, self).redirect(location)"," if normalize:\n location = self.canonicalize_url(location)"," location = self.canonicalize_url(location)"," super(ApplicationHandler, self).redirect(location)","class CourseHandler(ApplicationHandler):\n \"\"\"Base handler that is aware of the current course.\"\"\"\n\n def __init__(self, *args, **kwargs):\n super(CourseHandler, self).__init__(*args, **kwargs)\n self.course = None\n self.template_value = {}"," \"\"\"Base handler that is aware of the current course.\"\"\""," def __init__(self, *args, **kwargs):\n super(CourseHandler, self).__init__(*args, **kwargs)\n self.course = None\n self.template_value = {}"," super(CourseHandler, self).__init__(*args, **kwargs)"," self.course = None"," self.template_value = {}"," def get_user(self):\n \"\"\"Get the current user.\"\"\"\n return users.get_current_user()"," \"\"\"Get the current user.\"\"\""," return users.get_current_user()"," def get_student(self):\n \"\"\"Get the current student.\"\"\"\n user = self.get_user()\n if user is None:\n return None\n return Student.get_by_email(user.email())"," \"\"\"Get the current student.\"\"\""," user = self.get_user()"," if user is None:\n return None"," return None"," return Student.get_by_email(user.email())"," def _pick_first_valid_locale_from_list(self, desired_locales):\n available_locales = self.app_context.get_allowed_locales()\n for lang in desired_locales:\n for available_locale in available_locales:\n if lang.lower() == available_locale.lower():\n return lang\n return None"," available_locales = self.app_context.get_allowed_locales()"," for lang in desired_locales:\n for available_locale in available_locales:\n if lang.lower() == available_locale.lower():\n return lang"," for available_locale in available_locales:\n if lang.lower() == available_locale.lower():\n return lang"," if lang.lower() == available_locale.lower():\n return lang"," return lang"," return None"," def get_locale_for(self, request, app_context, student=None, prefs=None):\n \"\"\"Returns a locale that should be used by this request.\"\"\"\n hl = request.get('hl')\n if hl and hl in self.app_context.get_allowed_locales():\n return hl\n\n if self.get_user():\n # check if student has any locale labels assigned"," \"\"\"Returns a locale that should be used by this request.\"\"\""," hl = request.get('hl')"," if hl and hl in self.app_context.get_allowed_locales():\n return hl"," return hl"," if self.get_user():\n # check if student has any locale labels assigned\n if student is None:\n student = self.get_student()\n if student and student.is_enrolled and not student.is_transient:\n student_label_ids = student.get_labels_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)\n if student_label_ids:"," if student is None:\n student = self.get_student()"," student = self.get_student()"," if student and student.is_enrolled and not student.is_transient:\n student_label_ids = student.get_labels_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)\n if student_label_ids:\n all_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)\n student_locales = []\n for label in all_labels:"," student_label_ids = student.get_labels_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)"," if student_label_ids:\n all_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)\n student_locales = []\n for label in all_labels:\n if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\n continue\n if label.id in student_label_ids:"," all_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_LOCALE)"," student_locales = []"," for label in all_labels:\n if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\n continue\n if label.id in student_label_ids:\n student_locales.append(label.title)"," if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\n continue"," if label.id in student_label_ids:\n student_locales.append(label.title)"," student_locales.append(label.title)"," locale = self._pick_first_valid_locale_from_list(\n student_locales)"," if locale:\n return locale"," return locale"," if prefs is None:\n prefs = models.StudentPreferencesDAO.load_or_create()"," prefs = models.StudentPreferencesDAO.load_or_create()"," if prefs is not None and prefs.locale is not None:\n return prefs.locale"," return prefs.locale"," locale_cookie = self.request.cookies.get(GUEST_LOCALE_COOKIE)"," if locale_cookie and (\n locale_cookie in self.app_context.get_allowed_locales()):\n return locale_cookie"," return locale_cookie"," accept_langs = request.headers.get('Accept-Language')"," locale = self._pick_first_valid_locale_from_list(\n [lang for lang, _ in locales.parse_accept_language(accept_langs)])"," if locale:\n return locale"," return locale"," return app_context.default_locale"," def gettext(self, text):\n old_locale = self.app_context.get_current_locale()\n try:\n new_locale = self.get_locale_for(self.request, self.app_context)\n self.app_context.set_current_locale(new_locale)\n return self.app_context.gettext(text)\n finally:\n self.app_context.set_current_locale(old_locale)"," old_locale = self.app_context.get_current_locale()"," try:\n new_locale = self.get_locale_for(self.request, self.app_context)\n self.app_context.set_current_locale(new_locale)\n return self.app_context.gettext(text)\n finally:\n self.app_context.set_current_locale(old_locale)"," new_locale = self.get_locale_for(self.request, self.app_context)"," self.app_context.set_current_locale(new_locale)"," return self.app_context.gettext(text)"," self.app_context.set_current_locale(old_locale)"," def get_course(self):\n \"\"\"Get current course.\"\"\"\n if not self.course:\n self.course = Course(self)\n return self.course"," \"\"\"Get current course.\"\"\""," if not self.course:\n self.course = Course(self)"," self.course = Course(self)"," return self.course"," def get_track_matching_student(self, student):\n \"\"\"Gets units whose labels match those on the student.\"\"\"\n return self.get_course().get_track_matching_student(student)"," \"\"\"Gets units whose labels match those on the student.\"\"\""," return self.get_course().get_track_matching_student(student)"," def get_progress_tracker(self):\n \"\"\"Gets the progress tracker for the course.\"\"\"\n return self.get_course().get_progress_tracker()"," \"\"\"Gets the progress tracker for the course.\"\"\""," return self.get_course().get_progress_tracker()"," def find_unit_by_id(self, unit_id):\n \"\"\"Gets a unit with a specific id or fails with an exception.\"\"\"\n return self.get_course().find_unit_by_id(unit_id)"," \"\"\"Gets a unit with a specific id or fails with an exception.\"\"\""," return self.get_course().find_unit_by_id(unit_id)"," def get_units(self):\n \"\"\"Gets all units in the course.\"\"\"\n return self.get_course().get_units()"," \"\"\"Gets all units in the course.\"\"\""," return self.get_course().get_units()"," def get_lessons(self, unit_id):\n \"\"\"Gets all lessons (in order) in the specific course unit.\"\"\"\n return self.get_course().get_lessons(unit_id)"," \"\"\"Gets all lessons (in order) in the specific course unit.\"\"\""," return self.get_course().get_lessons(unit_id)"," def _cache_debug_info(cls, cache):\n items = []\n for key, entry in cache.items.iteritems():\n updated_on = None\n if entry:\n updated_on = entry.updated_on()\n items.append('entry: %s, %s' % (key, updated_on))\n return items"," items = []"," for key, entry in cache.items.iteritems():\n updated_on = None\n if entry:\n updated_on = entry.updated_on()\n items.append('entry: %s, %s' % (key, updated_on))"," updated_on = None"," if entry:\n updated_on = entry.updated_on()"," updated_on = entry.updated_on()"," items.append('entry: %s, %s' % (key, updated_on))"," return items"," def debug_info(cls):\n \"\"\"Generates a debug info for this request.\"\"\"\n\n # we only want to run import if this method is called; most of the\n # it is not; we also have circular import dependencies if we were to\n # put them at the top...\n from models import vfs\n from modules.i18n_dashboard import i18n_dashboard"," \"\"\"Generates a debug info for this request.\"\"\""," from models import vfs"," from modules.i18n_dashboard import i18n_dashboard"," vfs_items = cls._cache_debug_info(\n vfs.ProcessScopedVfsCache.instance().cache)"," rb_items = cls._cache_debug_info(\n i18n_dashboard.ProcessScopedResourceBundleCache.instance().cache)"," return ''.join([\n '\\nDebug Info: %s' % datetime.datetime.utcnow(),\n '\\n\\nServer Environment Variables: %s' % '\\n'.join([\n 'item: %s, %s' % (key, value)\n for key, value in os.environ.iteritems()]),\n '\\n\\nVfsCacheKeys:\\n%s' % '\\n'.join(vfs_items),\n '\\n\\nResourceBundlesCache:\\n%s' % '\\n'.join(rb_items),\n ])"," def init_template_values(self, environ, prefs=None):\n \"\"\"Initializes template variables with common values.\"\"\"\n self.template_value[COURSE_INFO_KEY] = environ\n self.template_value[\n 'page_locale'] = self.app_context.get_current_locale()\n self.template_value['html_hooks'] = HtmlHooks(\n self.get_course(), prefs=prefs)\n self.template_value['is_course_admin'] = Roles.is_course_admin("," \"\"\"Initializes template variables with common values.\"\"\""," self.template_value[COURSE_INFO_KEY] = environ"," self.template_value[\n 'page_locale'] = self.app_context.get_current_locale()"," self.template_value['html_hooks'] = HtmlHooks(\n self.get_course(), prefs=prefs)"," self.template_value['is_course_admin'] = Roles.is_course_admin(\n self.app_context)"," self.template_value['can_see_drafts'] = (\n courses_module.courses.can_see_drafts(self.app_context))"," self.template_value[\n 'is_read_write_course'] = self.app_context.fs.is_read_write()"," self.template_value['is_super_admin'] = Roles.is_super_admin()"," self.template_value[COURSE_BASE_KEY] = self.get_base_href(self)"," self.template_value['left_links'] = []"," for func in self.LEFT_LINKS:\n self.template_value['left_links'].extend(func(self.app_context))"," self.template_value['left_links'].extend(func(self.app_context))"," self.template_value['right_links'] = []"," for func in self.RIGHT_LINKS:\n self.template_value['right_links'].extend(func(self.app_context))"," self.template_value['right_links'].extend(func(self.app_context))"," if not prefs:\n prefs = models.StudentPreferencesDAO.load_or_create()"," prefs = models.StudentPreferencesDAO.load_or_create()"," self.template_value['student_preferences'] = prefs"," if (Roles.is_course_admin(self.app_context) and\n not appengine_config.PRODUCTION_MODE and\n prefs and prefs.show_jinja_context):\n\n @jinja2.contextfunction\n def get_context(context):\n return context\n self.template_value['context'] = get_context"," def get_context(context):\n return context"," return context"," self.template_value['context'] = get_context"," if CAN_PUT_DEBUG_INFO_INTO_PAGES.value:\n self.template_value['debug_info'] = self.debug_info()"," self.template_value['debug_info'] = self.debug_info()"," self.template_value[\n 'extra_global_css_urls'] = self.EXTRA_GLOBAL_CSS_URLS"," self.template_value[\n 'extra_global_js_urls'] = self.EXTRA_GLOBAL_JS_URLS"," can_student_change_locale = (\n self.get_course().get_course_setting('can_student_change_locale')\n or self.get_course().app_context.can_pick_all_locales())"," if can_student_change_locale:\n self.template_value['available_locales'] = [\n {\n 'name': locales.get_locale_display_name(loc),\n 'value': loc\n } for loc in self.app_context.get_allowed_locales()]\n self.template_value['locale_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token("," self.template_value['available_locales'] = [\n {\n 'name': locales.get_locale_display_name(loc),\n 'value': loc\n } for loc in self.app_context.get_allowed_locales()]"," self.template_value['locale_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token(\n StudentLocaleRESTHandler.XSRF_TOKEN_NAME))"," self.template_value['selected_locale'] = self.get_locale_for(\n self.request, self.app_context, prefs=prefs)"," def get_template(self, template_file, additional_dirs=None, prefs=None):\n \"\"\"Computes location of template files for the current namespace.\"\"\"\n\n _p = self.app_context.get_environ()\n self.init_template_values(_p, prefs=prefs)\n template_environ = self.app_context.get_template_environ(\n self.app_context.get_current_locale(), additional_dirs)\n template_environ.filters["," \"\"\"Computes location of template files for the current namespace.\"\"\""," _p = self.app_context.get_environ()"," self.init_template_values(_p, prefs=prefs)"," template_environ = self.app_context.get_template_environ(\n self.app_context.get_current_locale(), additional_dirs)"," template_environ.filters[\n 'gcb_tags'] = jinja_utils.get_gcb_tags_filter(self)"," template_environ.globals.update({\n 'display_unit_title': (\n lambda unit: resources_display.display_unit_title(\n unit, self.app_context)),\n 'display_short_unit_title': (\n lambda unit: resources_display.display_short_unit_title(\n unit, self.app_context)),\n 'display_lesson_title': ("," return template_environ.get_template(template_file)","class BaseHandler(CourseHandler):\n \"\"\"Base handler.\"\"\"\n\n def __init__(self, *args, **kwargs):\n super(BaseHandler, self).__init__(*args, **kwargs)\n self._old_locale = None\n\n def before_method(self, verb, path):"," \"\"\"Base handler.\"\"\""," def __init__(self, *args, **kwargs):\n super(BaseHandler, self).__init__(*args, **kwargs)\n self._old_locale = None"," super(BaseHandler, self).__init__(*args, **kwargs)"," self._old_locale = None"," def before_method(self, verb, path):\n \"\"\"Modify global locale value for the duration of this handler.\"\"\"\n self._old_locale = self.app_context.get_current_locale()\n new_locale = self.get_locale_for(self.request, self.app_context)\n self.app_context.set_current_locale(new_locale)"," \"\"\"Modify global locale value for the duration of this handler.\"\"\""," self._old_locale = self.app_context.get_current_locale()"," new_locale = self.get_locale_for(self.request, self.app_context)"," self.app_context.set_current_locale(new_locale)"," def after_method(self, verb, path):\n \"\"\"Restore original global locale value.\"\"\"\n self.app_context.set_current_locale(self._old_locale)"," \"\"\"Restore original global locale value.\"\"\""," self.app_context.set_current_locale(self._old_locale)"," def personalize_page_and_get_user(self):\n \"\"\"If the user exists, add personalized fields to the navbar.\"\"\"\n user = self.get_user()\n PageInitializerService.get().initialize(self.template_value)\n\n if hasattr(self, 'app_context'):\n self.template_value['can_register'] = self.app_context.get_environ(\n )['reg_form']['can_register']"," \"\"\"If the user exists, add personalized fields to the navbar.\"\"\""," user = self.get_user()"," PageInitializerService.get().initialize(self.template_value)"," if hasattr(self, 'app_context'):\n self.template_value['can_register'] = self.app_context.get_environ(\n )['reg_form']['can_register']"," self.template_value['can_register'] = self.app_context.get_environ(\n )['reg_form']['can_register']"," if user:\n email = user.email()\n self.template_value['email_no_domain_name'] = (\n email[:email.find('@')] if '@' in email else email)\n self.template_value['email'] = email\n self.template_value['logoutUrl'] = (\n users.create_logout_url(self.request.uri))\n self.template_value['transient_student'] = False"," email = user.email()"," self.template_value['email_no_domain_name'] = (\n email[:email.find('@')] if '@' in email else email)"," self.template_value['email'] = email"," self.template_value['logoutUrl'] = (\n users.create_logout_url(self.request.uri))"," self.template_value['transient_student'] = False"," self.template_value['record_tag_events'] = (\n CAN_PERSIST_TAG_EVENTS.value)"," self.template_value['record_page_events'] = (\n CAN_PERSIST_PAGE_EVENTS.value)"," self.template_value['record_events'] = (\n CAN_PERSIST_ACTIVITY_EVENTS.value)"," self.template_value['event_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('event-post'))"," self.template_value['loginUrl'] = users.create_login_url(\n self.request.uri)"," self.template_value['transient_student'] = True"," return None"," return user"," def personalize_page_and_get_enrolled(\n self, supports_transient_student=False):\n \"\"\"If the user is enrolled, add personalized fields to the navbar.\"\"\"\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())"," \"\"\"If the user is enrolled, add personalized fields to the navbar.\"\"\""," user = self.personalize_page_and_get_user()"," if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n if not student:\n self.template_value['transient_student'] = True\n student = TRANSIENT_STUDENT"," student = TRANSIENT_STUDENT"," student = Student.get_enrolled_student_by_email(user.email())"," if not student:\n self.template_value['transient_student'] = True\n student = TRANSIENT_STUDENT"," self.template_value['transient_student'] = True"," student = TRANSIENT_STUDENT"," if student.is_transient:\n if supports_transient_student and (\n self.app_context.get_environ()['course']['browsable']):\n return TRANSIENT_STUDENT\n elif user is None:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False\n )"," if supports_transient_student and (\n self.app_context.get_environ()['course']['browsable']):\n return TRANSIENT_STUDENT\n elif user is None:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False\n )\n return None"," return TRANSIENT_STUDENT"," elif user is None:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False\n )\n return None\n else:\n self.redirect('/preview')\n return None"," self.redirect(\n users.create_login_url(self.request.uri), normalize=False\n )"," return None"," self.redirect('/preview')"," return None"," if not student.user_id:\n student.user_id = user.user_id()\n student.put()"," student.user_id = user.user_id()"," student.put()"," return student"," def assert_xsrf_token_or_fail(self, request, action):\n \"\"\"Asserts the current request has proper XSRF token or fails.\"\"\"\n token = request.get('xsrf_token')\n if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\n self.error(403)\n return False\n return True"," \"\"\"Asserts the current request has proper XSRF token or fails.\"\"\""," token = request.get('xsrf_token')"," if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\n self.error(403)\n return False"," self.error(403)"," return False"," return True"," def render(self, template_file, additional_dirs=None):\n \"\"\"Renders a template.\"\"\"\n prefs = models.StudentPreferencesDAO.load_or_create()\n\n courses.Course.set_current(self.get_course())\n models.MemcacheManager.begin_readonly()\n try:\n template = self.get_template("," \"\"\"Renders a template.\"\"\""," prefs = models.StudentPreferencesDAO.load_or_create()"," courses.Course.set_current(self.get_course())"," models.MemcacheManager.begin_readonly()"," try:\n template = self.get_template(\n template_file, additional_dirs=additional_dirs, prefs=prefs)\n self.response.out.write(template.render(self.template_value))\n finally:\n models.MemcacheManager.end_readonly()\n courses.Course.clear_current()"," template = self.get_template(\n template_file, additional_dirs=additional_dirs, prefs=prefs)"," self.response.out.write(template.render(self.template_value))"," models.MemcacheManager.end_readonly()"," courses.Course.clear_current()"," user = self.get_user()"," if user:\n student = models.Student.get_enrolled_student_by_email(\n user.email())\n if student:\n prefs.last_location = self.request.path_qs\n models.StudentPreferencesDAO.save(prefs)"," student = models.Student.get_enrolled_student_by_email(\n user.email())"," if student:\n prefs.last_location = self.request.path_qs\n models.StudentPreferencesDAO.save(prefs)"," prefs.last_location = self.request.path_qs"," models.StudentPreferencesDAO.save(prefs)"," def get_redirect_location(self, student):\n if (not student.is_transient and\n (self.request.path == self.app_context.get_slug() or\n self.request.path == self.app_context.get_slug() + '/' or\n self.request.get('use_last_location'))): # happens on '/' page\n prefs = models.StudentPreferencesDAO.load_or_create()\n # Belt-and-suspenders: prevent infinite self-redirects\n if (prefs.last_location and"," if (not student.is_transient and\n (self.request.path == self.app_context.get_slug() or\n self.request.path == self.app_context.get_slug() + '/' or\n self.request.get('use_last_location'))): # happens on '/' page\n prefs = models.StudentPreferencesDAO.load_or_create()\n # Belt-and-suspenders: prevent infinite self-redirects\n if (prefs.last_location and\n prefs.last_location != self.request.path_qs):"," prefs = models.StudentPreferencesDAO.load_or_create()"," if (prefs.last_location and\n prefs.last_location != self.request.path_qs):\n return prefs.last_location"," return prefs.last_location"," return None","class BaseRESTHandler(CourseHandler):\n \"\"\"Base REST handler.\"\"\"\n\n def __init__(self, *args, **kwargs):\n super(BaseRESTHandler, self).__init__(*args, **kwargs)\n\n def assert_xsrf_token_or_fail(self, token_dict, action, args_dict):\n \"\"\"Asserts that current request has proper XSRF token or fails.\"\"\""," \"\"\"Base REST handler.\"\"\""," def __init__(self, *args, **kwargs):\n super(BaseRESTHandler, self).__init__(*args, **kwargs)"," super(BaseRESTHandler, self).__init__(*args, **kwargs)"," def assert_xsrf_token_or_fail(self, token_dict, action, args_dict):\n \"\"\"Asserts that current request has proper XSRF token or fails.\"\"\"\n token = token_dict.get('xsrf_token')\n if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\n transforms.send_json_response(\n self, 403,\n 'Bad XSRF token. Please reload the page and try again',\n args_dict)"," \"\"\"Asserts that current request has proper XSRF token or fails.\"\"\""," token = token_dict.get('xsrf_token')"," if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\n transforms.send_json_response(\n self, 403,\n 'Bad XSRF token. Please reload the page and try again',\n args_dict)\n return False"," transforms.send_json_response(\n self, 403,\n 'Bad XSRF token. Please reload the page and try again',\n args_dict)"," return False"," return True"," def validation_error(self, message, key=None):\n \"\"\"Deliver a validation message.\"\"\"\n if key:\n transforms.send_json_response(\n self, 412, message, payload_dict={'key': key})\n else:\n transforms.send_json_response(self, 412, message)"," \"\"\"Deliver a validation message.\"\"\""," if key:\n transforms.send_json_response(\n self, 412, message, payload_dict={'key': key})\n else:\n transforms.send_json_response(self, 412, message)"," transforms.send_json_response(\n self, 412, message, payload_dict={'key': key})"," transforms.send_json_response(self, 412, message)","class PreviewHandler(BaseHandler):\n \"\"\"Handler for viewing course preview.\"\"\"\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT"," \"\"\"Handler for viewing course preview.\"\"\""," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n user = self.personalize_page_and_get_user()\n if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n if not student:"," \"\"\"Handles GET requests.\"\"\""," user = self.personalize_page_and_get_user()"," if user is None:\n student = TRANSIENT_STUDENT\n else:\n student = Student.get_enrolled_student_by_email(user.email())\n if not student:\n student = TRANSIENT_STUDENT"," student = TRANSIENT_STUDENT"," student = Student.get_enrolled_student_by_email(user.email())"," if not student:\n student = TRANSIENT_STUDENT"," student = TRANSIENT_STUDENT"," if ((student and not student.is_transient) or\n self.app_context.get_environ()['course']['browsable']):\n self.redirect('/course')\n return"," self.redirect('/course')"," return"," self.template_value['transient_student'] = True"," self.template_value['can_register'] = self.app_context.get_environ(\n )['reg_form']['can_register']"," self.template_value['navbar'] = {'course': True}"," self.template_value['units'] = self.get_units()"," self.template_value['show_registration_page'] = True"," course = self.app_context.get_environ()['course']"," self.template_value['video_exists'] = bool(\n 'main_video' in course and\n 'url' in course['main_video'] and\n course['main_video']['url'])"," self.template_value['image_exists'] = bool(\n 'main_image' in course and\n 'url' in course['main_image'] and\n course['main_image']['url'])"," if user:\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\n additional_registration_fields = self.app_context.get_environ(\n )['reg_form']['additional_registration_fields']\n if profile is not None and not additional_registration_fields:\n self.template_value['show_registration_page'] = False\n self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))"," profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())"," additional_registration_fields = self.app_context.get_environ(\n )['reg_form']['additional_registration_fields']"," if profile is not None and not additional_registration_fields:\n self.template_value['show_registration_page'] = False\n self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))"," self.template_value['show_registration_page'] = False"," self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))"," self.render('preview.html')","class RegisterHandler(BaseHandler):\n \"\"\"Handler for course registration.\"\"\"\n\n def get(self):\n \"\"\"Handles GET request.\"\"\"\n user = self.personalize_page_and_get_user()\n if not user:\n self.redirect("," \"\"\"Handler for course registration.\"\"\""," def get(self):\n \"\"\"Handles GET request.\"\"\"\n user = self.personalize_page_and_get_user()\n if not user:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False)\n return"," \"\"\"Handles GET request.\"\"\""," user = self.personalize_page_and_get_user()"," if not user:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False)\n return"," self.redirect(\n users.create_login_url(self.request.uri), normalize=False)"," return"," student = Student.get_enrolled_student_by_email(user.email())"," if student:\n self.redirect('/course')\n return"," self.redirect('/course')"," return"," can_register = self.app_context.get_environ(\n )['reg_form']['can_register']"," if not can_register:\n self.redirect('/course#registration_closed')\n return"," self.redirect('/course#registration_closed')"," return"," self.template_value['current_name'] = ''"," profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())"," if profile and profile.nick_name:\n self.template_value['current_name'] = profile.nick_name"," self.template_value['current_name'] = profile.nick_name"," self.template_value['navbar'] = {}"," self.template_value['transient_student'] = True"," self.template_value['register_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('register-post'))"," self.render('register.html')"," def post(self):\n \"\"\"Handles POST requests.\"\"\"\n user = self.personalize_page_and_get_user()\n if not user:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False)\n return"," \"\"\"Handles POST requests.\"\"\""," user = self.personalize_page_and_get_user()"," if not user:\n self.redirect(\n users.create_login_url(self.request.uri), normalize=False)\n return"," self.redirect(\n users.create_login_url(self.request.uri), normalize=False)"," return"," if not self.assert_xsrf_token_or_fail(self.request, 'register-post'):\n return"," return"," can_register = self.app_context.get_environ(\n )['reg_form']['can_register']"," if not can_register:\n self.redirect('/course#registration_closed')\n return"," self.redirect('/course#registration_closed')"," return"," if 'name_from_profile' in self.request.POST.keys():\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\n name = profile.nick_name\n else:\n name = self.request.get('form01')"," profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())"," name = profile.nick_name"," name = self.request.get('form01')"," Student.add_new_student_for_current_user(\n name, transforms.dumps(self.request.POST.items()), self,\n labels=self.request.get('labels'))"," self.redirect('/course#registration_confirmation')","class ForumHandler(BaseHandler):\n \"\"\"Handler for forum page.\"\"\"\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:"," \"\"\"Handler for forum page.\"\"\""," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)\n if not student:\n return\n\n self.template_value['navbar'] = {'forum': True}"," \"\"\"Handles GET requests.\"\"\""," student = self.personalize_page_and_get_enrolled(\n supports_transient_student=True)"," if not student:\n return"," return"," self.template_value['navbar'] = {'forum': True}"," self.render('forum.html')","class StudentProfileHandler(BaseHandler):\n \"\"\"Handles the click to 'Progress' link in the nav bar.\"\"\"\n\n # A list of functions which will provide extra rows in the Student Progress\n # table. Each function will be passed the current handler, student, and\n # course object and should return a pair of strings; the first being the\n # title of the data and the second the value to display.\n EXTRA_STUDENT_DATA_PROVIDERS = []"," \"\"\"Handles the click to 'Progress' link in the nav bar.\"\"\""," EXTRA_STUDENT_DATA_PROVIDERS = []"," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n track_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)"," \"\"\"Handles GET requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," track_labels = models.LabelDAO.get_all_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)"," course = self.get_course()"," units = []"," for unit in course.get_units():\n # Don't show assessments that are part of units.\n if course.get_parent_unit(unit.unit_id):\n continue\n units.append({\n 'unit_id': unit.unit_id,\n 'title': unit.title,\n 'labels': list(course.get_unit_track_labels(unit)),"," if course.get_parent_unit(unit.unit_id):\n continue"," units.append({\n 'unit_id': unit.unit_id,\n 'title': unit.title,\n 'labels': list(course.get_unit_track_labels(unit)),\n })"," name = student.name"," profile = student.profile"," if profile:\n name = profile.nick_name"," name = profile.nick_name"," student_labels = student.get_labels_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)"," self.template_value['navbar'] = {'progress': True}"," self.template_value['student'] = student"," self.template_value['student_name'] = name"," self.template_value['date_enrolled'] = student.enrolled_on.strftime(\n HUMAN_READABLE_DATE_FORMAT)"," self.template_value['score_list'] = course.get_all_scores(student)"," self.template_value['overall_score'] = course.get_overall_score(student)"," self.template_value['student_edit_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('student-edit'))"," self.template_value['can_edit_name'] = (\n not models.CAN_SHARE_STUDENT_PROFILE.value)"," self.template_value['track_labels'] = track_labels"," self.template_value['student_labels'] = student_labels"," self.template_value['units'] = units"," self.template_value['track_env'] = transforms.dumps({\n 'label_ids': [label.id for label in track_labels],\n 'units': units\n })"," extra_student_data = []"," for data_provider in self.EXTRA_STUDENT_DATA_PROVIDERS:\n extra_student_data.append(data_provider(self, student, course))"," extra_student_data.append(data_provider(self, student, course))"," self.template_value['extra_student_data'] = extra_student_data"," self.render('student_profile.html')","class StudentEditStudentHandler(BaseHandler):\n \"\"\"Handles edits to student records by students.\"\"\"\n\n def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return"," \"\"\"Handles edits to student records by students.\"\"\""," def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\n return"," \"\"\"Handles POST requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\n return"," return"," Student.rename_current(self.request.get('name'))"," self.redirect('/student/home')","class StudentSetTracksHandler(BaseHandler):\n \"\"\"Handles submission of student tracks selections.\"\"\"\n\n def post(self):\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):"," \"\"\"Handles submission of student tracks selections.\"\"\""," def post(self):\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\n return\n\n all_track_label_ids = models.LabelDAO.get_set_of_ids_of_type("," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\n return"," return"," all_track_label_ids = models.LabelDAO.get_set_of_ids_of_type(\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)"," new_track_label_ids = set(\n [int(label_id)\n for label_id in self.request.get_all('labels')\n if label_id and int(label_id) in all_track_label_ids])"," student_label_ids = set(\n [int(label_id)\n for label_id in common_utils.text_to_list(student.labels)\n if label_id])"," student_label_ids = student_label_ids.difference(all_track_label_ids)"," student_label_ids = student_label_ids.union(new_track_label_ids)"," models.Student.set_labels_for_current(\n common_utils.list_to_text(list(student_label_ids)))"," self.redirect('/student/home')","class StudentUnenrollHandler(BaseHandler):\n \"\"\"Handler for students to unenroll themselves.\"\"\"\n\n def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return"," \"\"\"Handler for students to unenroll themselves.\"\"\""," def get(self):\n \"\"\"Handles GET requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n self.template_value['student'] = student\n self.template_value['navbar'] = {}"," \"\"\"Handles GET requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," self.template_value['student'] = student"," self.template_value['navbar'] = {}"," self.template_value['student_unenroll_xsrf_token'] = (\n XsrfTokenManager.create_xsrf_token('student-unenroll'))"," self.render('unenroll_confirmation_check.html')"," def post(self):\n \"\"\"Handles POST requests.\"\"\"\n student = self.personalize_page_and_get_enrolled()\n if not student:\n return\n\n if not self.assert_xsrf_token_or_fail(self.request, 'student-unenroll'):\n return"," \"\"\"Handles POST requests.\"\"\""," student = self.personalize_page_and_get_enrolled()"," if not student:\n return"," return"," if not self.assert_xsrf_token_or_fail(self.request, 'student-unenroll'):\n return"," return"," Student.set_enrollment_status_for_current(False)"," self.template_value['navbar'] = {}"," self.template_value['transient_student'] = True"," self.render('unenroll_confirmation.html')","class StudentLocaleRESTHandler(BaseRESTHandler):\n \"\"\"REST handler to manage student setting their preferred locale.\"\"\"\n\n XSRF_TOKEN_NAME = 'locales'\n\n def post(self):\n request = transforms.loads(self.request.get('request'))\n if not self.assert_xsrf_token_or_fail("," \"\"\"REST handler to manage student setting their preferred locale.\"\"\""," XSRF_TOKEN_NAME = 'locales'"," def post(self):\n request = transforms.loads(self.request.get('request'))\n if not self.assert_xsrf_token_or_fail(\n request, self.XSRF_TOKEN_NAME, {}):\n return\n\n selected = request['payload']['selected']\n if selected not in self.app_context.get_allowed_locales():"," request = transforms.loads(self.request.get('request'))"," if not self.assert_xsrf_token_or_fail(\n request, self.XSRF_TOKEN_NAME, {}):\n return"," return"," selected = request['payload']['selected']"," if selected not in self.app_context.get_allowed_locales():\n transforms.send_json_response(self, 401, 'Bad locale')\n return"," transforms.send_json_response(self, 401, 'Bad locale')"," return"," prefs = models.StudentPreferencesDAO.load_or_create()"," if prefs:\n # Store locale in StudentPreferences for logged-in users\n prefs.locale = selected\n models.StudentPreferencesDAO.save(prefs)\n else:\n # Store locale in cookie for out-of-session users\n self.response.set_cookie(\n GUEST_LOCALE_COOKIE, selected,"," prefs.locale = selected"," models.StudentPreferencesDAO.save(prefs)"," self.response.set_cookie(\n GUEST_LOCALE_COOKIE, selected,\n max_age=GUEST_LOCALE_COOKIE_MAX_AGE_SEC)"," transforms.send_json_response(self, 200, 'OK')"],"string":"[\n \"\\\"\\\"\\\"Handlers that are not directly related to course content.\\\"\\\"\\\"\",\n \"__author__ = 'Saifu Angto (saifu@google.com)'\",\n \"import datetime\",\n \"import HTMLParser\",\n \"import os\",\n \"import re\",\n \"import urllib\",\n \"import urlparse\",\n \"import jinja2\",\n \"import sites\",\n \"import webapp2\",\n \"import appengine_config\",\n \"from common import jinja_utils\",\n \"from common import locales\",\n \"from common import resource\",\n \"from common import safe_dom\",\n \"from common import schema_fields\",\n \"from common import tags\",\n \"from common import utils as common_utils\",\n \"from common.crypto import XsrfTokenManager\",\n \"from models import courses\",\n \"from models import resources_display\",\n \"from models import models\",\n \"from models import transforms\",\n \"from models.config import ConfigProperty\",\n \"from models.courses import Course\",\n \"from models.models import Student\",\n \"from models.models import StudentProfileDAO\",\n \"from models.models import TransientStudent\",\n \"from models.roles import Roles\",\n \"from modules import courses as courses_module\",\n \"from google.appengine.api import users\",\n \"COURSE_BASE_KEY = 'gcb_course_base'\",\n \"COURSE_INFO_KEY = 'course_info'\",\n \"GUEST_LOCALE_COOKIE = 'cb-user-locale'\",\n \"GUEST_LOCALE_COOKIE_MAX_AGE_SEC = 48 * 60 * 60 # 48 hours\",\n \"TRANSIENT_STUDENT = TransientStudent()\",\n \"CAN_PUT_DEBUG_INFO_INTO_PAGES = ConfigProperty(\\n 'gcb_can_put_debug_info_into_pages', bool, (\\n 'Whether or not to put debugging information into the web pages. '\\n 'This may be useful for debugging purposes if you develop custom '\\n 'Course Builder features or extensions.'), False)\",\n \"CAN_PERSIST_PAGE_EVENTS = ConfigProperty(\\n 'gcb_can_persist_page_events', bool, (\\n 'Whether or not to record student page interactions in a '\\n 'datastore. Without event recording, you cannot analyze student '\\n 'page interactions. On the other hand, no event recording reduces '\\n 'the number of datastore operations and minimizes the use of Google '\\n 'App Engine quota. Turn event recording on if you want to analyze '\\n 'this data.'),\",\n \"CAN_PERSIST_TAG_EVENTS = ConfigProperty(\\n 'gcb_can_persist_tag_events', bool, (\\n 'Whether or not to record student tag interactions in a '\\n 'datastore. Without event recording, you cannot analyze student '\\n 'tag interactions. On the other hand, no event recording reduces '\\n 'the number of datastore operations and minimizes the use of Google '\\n 'App Engine quota. Turn event recording on if you want to analyze '\\n 'this data.'),\",\n \"CAN_PERSIST_ACTIVITY_EVENTS = ConfigProperty(\\n 'gcb_can_persist_activity_events', bool, (\\n 'Whether or not to record student activity interactions in a '\\n 'datastore. Without event recording, you cannot analyze student '\\n 'activity interactions. On the other hand, no event recording reduces '\\n 'the number of datastore operations and minimizes the use of Google '\\n 'App Engine quota. Turn event recording on if you want to analyze '\\n 'this data.'),\",\n \"HUMAN_READABLE_DATETIME_FORMAT = '%Y-%m-%d, %H:%M UTC'\",\n \"HUMAN_READABLE_DATE_FORMAT = '%Y-%m-%d'\",\n \"HUMAN_READABLE_TIME_FORMAT = '%H:%M:%S UTC'\",\n \"class PageInitializer(object):\\n \\\"\\\"\\\"Abstract class that defines an interface to initialize page headers.\\\"\\\"\\\"\\n\\n @classmethod\\n def initialize(cls, template_value):\\n raise NotImplementedError\",\n \" \\\"\\\"\\\"Abstract class that defines an interface to initialize page headers.\\\"\\\"\\\"\",\n \" def initialize(cls, template_value):\\n raise NotImplementedError\",\n \"class DefaultPageInitializer(PageInitializer):\\n \\\"\\\"\\\"Implements default page initializer.\\\"\\\"\\\"\\n\\n @classmethod\\n def initialize(cls, template_value):\\n pass\",\n \" \\\"\\\"\\\"Implements default page initializer.\\\"\\\"\\\"\",\n \" def initialize(cls, template_value):\\n pass\",\n \"class PageInitializerService(object):\\n \\\"\\\"\\\"Installs the appropriate PageInitializer.\\\"\\\"\\\"\\n _page_initializer = DefaultPageInitializer\\n\\n @classmethod\\n def get(cls):\\n return cls._page_initializer\",\n \" \\\"\\\"\\\"Installs the appropriate PageInitializer.\\\"\\\"\\\"\",\n \" _page_initializer = DefaultPageInitializer\",\n \" def get(cls):\\n return cls._page_initializer\",\n \" return cls._page_initializer\",\n \" def set(cls, page_initializer):\\n cls._page_initializer = page_initializer\",\n \" cls._page_initializer = page_initializer\",\n \"class ReflectiveRequestHandler(object):\\n \\\"\\\"\\\"Uses reflection to handle custom get() and post() requests.\\n\\n Use this class as a mix-in with any webapp2.RequestHandler to allow request\\n dispatching to multiple get() and post() methods based on the 'action'\\n parameter.\\n\\n Open your existing webapp2.RequestHandler, add this class as a mix-in.\",\n \" \\\"\\\"\\\"Uses reflection to handle custom get() and post() requests.\\n\\n Use this class as a mix-in with any webapp2.RequestHandler to allow request\\n dispatching to multiple get() and post() methods based on the 'action'\\n parameter.\\n\\n Open your existing webapp2.RequestHandler, add this class as a mix-in.\\n Define the following class variables:\",\n \" def create_xsrf_token(self, action):\\n return XsrfTokenManager.create_xsrf_token(action)\",\n \" return XsrfTokenManager.create_xsrf_token(action)\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET.\\\"\\\"\\\"\\n action = self.request.get('action')\\n if not action:\\n action = self.default_action\\n\\n if action not in self.get_actions:\\n self.error(404)\",\n \" \\\"\\\"\\\"Handles GET.\\\"\\\"\\\"\",\n \" action = self.request.get('action')\",\n \" if not action:\\n action = self.default_action\",\n \" action = self.default_action\",\n \" if action not in self.get_actions:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" handler = getattr(self, 'get_%s' % action)\",\n \" if not handler:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" return handler()\",\n \" def post(self):\\n \\\"\\\"\\\"Handles POST.\\\"\\\"\\\"\\n action = self.request.get('action')\\n if not action or action not in self.post_actions:\\n self.error(404)\\n return\\n\\n handler = getattr(self, 'post_%s' % action)\",\n \" \\\"\\\"\\\"Handles POST.\\\"\\\"\\\"\",\n \" action = self.request.get('action')\",\n \" if not action or action not in self.post_actions:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" handler = getattr(self, 'post_%s' % action)\",\n \" if not handler:\\n self.error(404)\\n return\",\n \" self.error(404)\",\n \" return\",\n \" xsrf_token = self.request.get('xsrf_token')\",\n \" if not XsrfTokenManager.is_xsrf_token_valid(xsrf_token, action):\\n self.error(403)\\n return\",\n \" self.error(403)\",\n \" return\",\n \" return handler()\",\n \"class HtmlHooks(object):\\n\\n # As of Q1, 2015, hook points moved from \\\"where-ever in the course\\n # settings is convenient\\\" to \\\"Anywhere under the top-level 'html_hooks'\\n # item\\\". Older courses may have these items still referenced from the\\n # root of the settings hierarchy, rather than under \\\"html_hooks\\\". Rather\\n # than modifying the course settings, we simply also look for these legacy\\n # items in the old locations.\",\n \" BACKWARD_COMPATIBILITY_ITEMS = [\\n 'base.before_head_tag_ends',\\n 'base.after_body_tag_begins',\\n 'base.after_navbar_begins',\\n 'base.before_navbar_ends',\\n 'base.after_top_content_ends',\\n 'base.after_main_content_ends',\\n 'base.before_body_tag_ends',\",\n \" BACKWARD_COMPATIBILITY_SEPARATOR = ':'\",\n \" HTML_HOOKS = 'html_hooks'\",\n \" POST_LOAD_CALLBACKS = []\",\n \" SEPARATOR = '.'\",\n \" def __init__(self, course, prefs=None):\\n if prefs is None:\\n prefs = models.StudentPreferencesDAO.load_or_create()\\n\\n # Fetch all the hooks. Since these are coming from the course\\n # settings, getting them all is not too inefficient.\\n self.content = self.get_all(course)\",\n \" if prefs is None:\\n prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" self.content = self.get_all(course)\",\n \" for callback in self.POST_LOAD_CALLBACKS:\\n callback(self.content)\",\n \" callback(self.content)\",\n \" self.show_admin_content = False\",\n \" if (prefs and prefs.show_hooks and\\n Roles.is_course_admin(course.app_context)):\\n self.show_admin_content = True\",\n \" self.show_admin_content = True\",\n \" if course.version == courses.CourseModel12.VERSION:\\n self.show_admin_content = False\",\n \" self.show_admin_content = False\",\n \" if self.show_admin_content:\\n self.update_for_admin()\",\n \" self.update_for_admin()\",\n \" def update_for_admin(self):\\n \\\"\\\"\\\"Show HTML hooks with non-blank text if admin has edit pref set.\\n\\n If we are displaying to a course admin, and the admin has enabled\\n a preference, we want to ensure that each HTML hook point has some\\n non-blank text in it. (Hooks often carry only scripts, or other\\n non-displaying tags). Having some actual text in the tag forces\\n browsers to give it a visible component on the page. Clicking on\",\n \" \\\"\\\"\\\"Show HTML hooks with non-blank text if admin has edit pref set.\\n\\n If we are displaying to a course admin, and the admin has enabled\\n a preference, we want to ensure that each HTML hook point has some\\n non-blank text in it. (Hooks often carry only scripts, or other\\n non-displaying tags). Having some actual text in the tag forces\\n browsers to give it a visible component on the page. Clicking on\\n this component permits the admin to edit the item.\",\n \" class VisibleHtmlParser(HTMLParser.HTMLParser):\\n\\n def __init__(self, *args, **kwargs):\\n HTMLParser.HTMLParser.__init__(self, *args, **kwargs)\\n self._has_visible_content = False\\n\\n def handle_starttag(self, unused_tag, unused_attrs):\\n # Not 100% guaranteed; e.g., <p> does not guarantee content,\",\n \" def __init__(self, *args, **kwargs):\\n HTMLParser.HTMLParser.__init__(self, *args, **kwargs)\\n self._has_visible_content = False\",\n \" HTMLParser.HTMLParser.__init__(self, *args, **kwargs)\",\n \" self._has_visible_content = False\",\n \" def handle_starttag(self, unused_tag, unused_attrs):\\n # Not 100% guaranteed; e.g., <p> does not guarantee content,\\n # but <button> does -- even if the <button> does not contain\\n # data/entity/char. I don't want to spend a lot of logic\\n # looking for specific cases, and this behavior is enough.\\n self._has_visible_content = True\",\n \" self._has_visible_content = True\",\n \" def handle_data(self, data):\\n if data.strip():\\n self._has_visible_content = True\",\n \" if data.strip():\\n self._has_visible_content = True\",\n \" self._has_visible_content = True\",\n \" def handle_entityref(self, unused_data):\\n self._has_visible_content = True\",\n \" self._has_visible_content = True\",\n \" def handle_charref(self, unused_data):\\n self._has_visible_content = True\",\n \" self._has_visible_content = True\",\n \" def has_visible_content(self):\\n return self._has_visible_content\",\n \" return self._has_visible_content\",\n \" def reset(self):\\n HTMLParser.HTMLParser.reset(self)\\n self._has_visible_content = False\",\n \" HTMLParser.HTMLParser.reset(self)\",\n \" self._has_visible_content = False\",\n \" parser = VisibleHtmlParser()\",\n \" for key, value in self.content.iteritems():\\n parser.reset()\\n parser.feed(value)\\n parser.close()\\n if not parser.has_visible_content():\\n self.content[key] += key\",\n \" parser.reset()\",\n \" parser.feed(value)\",\n \" parser.close()\",\n \" if not parser.has_visible_content():\\n self.content[key] += key\",\n \" def _get_content_from(cls, name, environ):\\n # Look up desired content chunk in course.yaml dict/sub-dict.\\n content = None\\n for part in name.split(cls.SEPARATOR):\\n if part in environ:\\n item = environ[part]\\n if isinstance(item, basestring):\\n content = item\",\n \" content = None\",\n \" for part in name.split(cls.SEPARATOR):\\n if part in environ:\\n item = environ[part]\\n if isinstance(item, basestring):\\n content = item\\n else:\\n environ = item\",\n \" if part in environ:\\n item = environ[part]\\n if isinstance(item, basestring):\\n content = item\\n else:\\n environ = item\",\n \" item = environ[part]\",\n \" if isinstance(item, basestring):\\n content = item\\n else:\\n environ = item\",\n \" content = item\",\n \" environ = item\",\n \" return content\",\n \" def get_content(cls, course, name):\\n environ = course.app_context.get_environ()\\n\\n # Prefer getting hook content from html_hooks sub-dict within\\n # course settings.\\n content = cls._get_content_from(name, environ.get(cls.HTML_HOOKS, {}))\\n\\n # For backward compatibility, fall back to looking in top level.\",\n \" environ = course.app_context.get_environ()\",\n \" content = cls._get_content_from(name, environ.get(cls.HTML_HOOKS, {}))\",\n \" if content is None:\\n content = cls._get_content_from(name, environ)\",\n \" content = cls._get_content_from(name, environ)\",\n \" return content\",\n \" def get_all(cls, course):\\n \\\"\\\"\\\"Get all hook names and associated content.\\\"\\\"\\\"\\n ret = {}\\n # Look through the backward-compatibility items. These may not all\\n # exist, but pick up whatever does already exist.\\n environ = course.app_context.get_environ()\\n for backward_compatibility_item in cls.BACKWARD_COMPATIBILITY_ITEMS:\\n value = cls._get_content_from(backward_compatibility_item, environ)\",\n \" \\\"\\\"\\\"Get all hook names and associated content.\\\"\\\"\\\"\",\n \" ret = {}\",\n \" environ = course.app_context.get_environ()\",\n \" for backward_compatibility_item in cls.BACKWARD_COMPATIBILITY_ITEMS:\\n value = cls._get_content_from(backward_compatibility_item, environ)\\n if value:\\n ret[backward_compatibility_item] = value\",\n \" value = cls._get_content_from(backward_compatibility_item, environ)\",\n \" if value:\\n ret[backward_compatibility_item] = value\",\n \" ret[backward_compatibility_item] = value\",\n \" def find_leaves(environ, parent_names, ret):\\n for name, value in environ.iteritems():\\n if isinstance(value, basestring):\\n full_name = cls.SEPARATOR.join(parent_names + [name])\\n ret[full_name] = value\\n elif isinstance(value, dict):\\n find_leaves(value, parent_names + [name], ret)\",\n \" for name, value in environ.iteritems():\\n if isinstance(value, basestring):\\n full_name = cls.SEPARATOR.join(parent_names + [name])\\n ret[full_name] = value\\n elif isinstance(value, dict):\\n find_leaves(value, parent_names + [name], ret)\",\n \" if isinstance(value, basestring):\\n full_name = cls.SEPARATOR.join(parent_names + [name])\\n ret[full_name] = value\\n elif isinstance(value, dict):\\n find_leaves(value, parent_names + [name], ret)\",\n \" full_name = cls.SEPARATOR.join(parent_names + [name])\",\n \" ret[full_name] = value\",\n \" elif isinstance(value, dict):\\n find_leaves(value, parent_names + [name], ret)\",\n \" find_leaves(value, parent_names + [name], ret)\",\n \" find_leaves(environ[cls.HTML_HOOKS], [], ret)\",\n \" return ret\",\n \" def insert(self, name):\\n name = name.replace(self.BACKWARD_COMPATIBILITY_SEPARATOR,\\n self.SEPARATOR)\\n content = self.content.get(name, '')\\n\\n # Add the content to the page in response to the hook call.\\n hook_div = safe_dom.Element('div', className='gcb-html-hook',\\n id=re.sub('[^a-zA-Z-]', '-', name))\",\n \" name = name.replace(self.BACKWARD_COMPATIBILITY_SEPARATOR,\\n self.SEPARATOR)\",\n \" content = self.content.get(name, '')\",\n \" hook_div = safe_dom.Element('div', className='gcb-html-hook',\\n id=re.sub('[^a-zA-Z-]', '-', name))\",\n \" hook_div.add_child(tags.html_to_safe_dom(content, self))\",\n \" if self.show_admin_content:\\n hook_div.add_attribute(onclick='gcb_edit_hook_point(\\\"%s\\\")' % name)\\n hook_div.add_attribute(className='gcb-html-hook-edit')\",\n \" hook_div.add_attribute(onclick='gcb_edit_hook_point(\\\"%s\\\")' % name)\",\n \" hook_div.add_attribute(className='gcb-html-hook-edit')\",\n \" return jinja2.Markup(hook_div.sanitized)\",\n \"class ResourceHtmlHook(resource.AbstractResourceHandler):\\n \\\"\\\"\\\"Provide a class to allow treating this resource type polymorphically.\\\"\\\"\\\"\\n\\n TYPE = 'html_hook'\\n NAME = 'name'\\n CONTENT = 'content'\\n\\n @classmethod\",\n \" \\\"\\\"\\\"Provide a class to allow treating this resource type polymorphically.\\\"\\\"\\\"\",\n \" TYPE = 'html_hook'\",\n \" NAME = 'name'\",\n \" CONTENT = 'content'\",\n \" def get_resource(cls, course, key):\\n return cls.get_data_dict(course, key)\",\n \" return cls.get_data_dict(course, key)\",\n \" def get_resource_title(cls, rsrc):\\n return rsrc[cls.NAME]\",\n \" return rsrc[cls.NAME]\",\n \" def get_schema(cls, unused_course, unused_key):\\n ret = schema_fields.FieldRegistry(\\n 'HTML Hooks',\\n description='HTML fragments that can be inserted at arbitrary '\\n 'points in student-visible pages using the syntax: '\\n ' {{ html_hooks.insert(\\\\'name_of_hook_section\\\\') }} ')\\n ret.add_property(schema_fields.SchemaField(\\n cls.NAME, 'Name', 'string', i18n=False))\",\n \" ret = schema_fields.FieldRegistry(\\n 'HTML Hooks',\\n description='HTML fragments that can be inserted at arbitrary '\\n 'points in student-visible pages using the syntax: '\\n ' {{ html_hooks.insert(\\\\'name_of_hook_section\\\\') }} ')\",\n \" ret.add_property(schema_fields.SchemaField(\\n cls.NAME, 'Name', 'string', i18n=False))\",\n \" ret.add_property(schema_fields.SchemaField(\\n cls.CONTENT, 'Content', 'html', editable=True,\\n description='HTML content injected into page where hook '\\n 'is referenced.'))\",\n \" return ret\",\n \" def to_data_dict(cls, key, content):\\n return {\\n cls.NAME: key,\\n cls.CONTENT: content,\\n }\",\n \" return {\\n cls.NAME: key,\\n cls.CONTENT: content,\\n }\",\n \" def get_data_dict(cls, course, key):\\n return cls.to_data_dict(key, HtmlHooks.get_content(course, key))\",\n \" return cls.to_data_dict(key, HtmlHooks.get_content(course, key))\",\n \" def get_view_url(cls, rsrc):\\n return None\",\n \" return None\",\n \" def get_edit_url(cls, key):\\n return 'dashboard?%s' % urllib.urlencode({\\n 'action': 'edit_html_hook',\\n 'key': key\\n })\",\n \" return 'dashboard?%s' % urllib.urlencode({\\n 'action': 'edit_html_hook',\\n 'key': key\\n })\",\n \" def get_all(cls, course):\\n \\\"\\\"\\\"Returns key/value pairs of resource.Key -> <html-hook resource>\\\"\\\"\\\"\\n\\n ret = {}\\n for name, content in HtmlHooks.get_all(course).iteritems():\\n key = resource.Key(cls.TYPE, name, course)\\n value = {\\n cls.NAME: name,\",\n \" \\\"\\\"\\\"Returns key/value pairs of resource.Key -> <html-hook resource>\\\"\\\"\\\"\",\n \" ret = {}\",\n \" for name, content in HtmlHooks.get_all(course).iteritems():\\n key = resource.Key(cls.TYPE, name, course)\\n value = {\\n cls.NAME: name,\\n cls.CONTENT: content\\n }\\n ret[key] = value\",\n \" key = resource.Key(cls.TYPE, name, course)\",\n \" value = {\\n cls.NAME: name,\\n cls.CONTENT: content\\n }\",\n \" ret[key] = value\",\n \" return ret\",\n \"class ApplicationHandler(webapp2.RequestHandler):\\n \\\"\\\"\\\"A handler that is aware of the application context.\\\"\\\"\\\"\\n\\n LEFT_LINKS = []\\n RIGHT_LINKS = []\\n EXTRA_GLOBAL_CSS_URLS = []\\n EXTRA_GLOBAL_JS_URLS = []\",\n \" \\\"\\\"\\\"A handler that is aware of the application context.\\\"\\\"\\\"\",\n \" LEFT_LINKS = []\",\n \" RIGHT_LINKS = []\",\n \" EXTRA_GLOBAL_CSS_URLS = []\",\n \" EXTRA_GLOBAL_JS_URLS = []\",\n \" def is_absolute(cls, url):\\n return sites.ApplicationContext.is_absolute_url(url)\",\n \" return sites.ApplicationContext.is_absolute_url(url)\",\n \" def get_base_href(cls, handler):\\n \\\"\\\"\\\"Computes current course <base> href.\\\"\\\"\\\"\\n base = handler.app_context.get_slug()\\n if not base.endswith('/'):\\n base = '%s/' % base\\n\\n # For IE to work with the <base> tag, its href must be an absolute URL.\\n if not sites.ApplicationContext.is_absolute_url(base):\",\n \" \\\"\\\"\\\"Computes current course <base> href.\\\"\\\"\\\"\",\n \" base = handler.app_context.get_slug()\",\n \" if not base.endswith('/'):\\n base = '%s/' % base\",\n \" base = '%s/' % base\",\n \" if not sites.ApplicationContext.is_absolute_url(base):\\n parts = urlparse.urlparse(handler.request.url)\\n base = urlparse.urlunparse(\\n (parts.scheme, parts.netloc, base, None, None, None))\",\n \" parts = urlparse.urlparse(handler.request.url)\",\n \" base = urlparse.urlunparse(\\n (parts.scheme, parts.netloc, base, None, None, None))\",\n \" return base\",\n \" def render_template_to_html(self, template_values, template_file,\\n additional_dirs=None):\\n courses.Course.set_current(self.get_course())\\n models.MemcacheManager.begin_readonly()\\n try:\\n template = self.get_template(template_file, additional_dirs)\\n return jinja2.utils.Markup(\\n template.render(template_values, autoescape=True))\",\n \" courses.Course.set_current(self.get_course())\",\n \" models.MemcacheManager.begin_readonly()\",\n \" try:\\n template = self.get_template(template_file, additional_dirs)\\n return jinja2.utils.Markup(\\n template.render(template_values, autoescape=True))\\n finally:\\n models.MemcacheManager.end_readonly()\\n courses.Course.clear_current()\",\n \" template = self.get_template(template_file, additional_dirs)\",\n \" return jinja2.utils.Markup(\\n template.render(template_values, autoescape=True))\",\n \" models.MemcacheManager.end_readonly()\",\n \" courses.Course.clear_current()\",\n \" def get_template(self, template_file, additional_dirs=None, prefs=None):\\n raise NotImplementedError()\",\n \" def canonicalize_url_for(cls, app_context, location):\\n \\\"\\\"\\\"Adds the current namespace URL prefix to the relative 'location'.\\\"\\\"\\\"\\n return app_context.canonicalize_url(location)\",\n \" \\\"\\\"\\\"Adds the current namespace URL prefix to the relative 'location'.\\\"\\\"\\\"\",\n \" return app_context.canonicalize_url(location)\",\n \" def canonicalize_url(self, location):\\n if hasattr(self, 'app_context'):\\n return self.app_context.canonicalize_url(location)\\n else:\\n return location\",\n \" if hasattr(self, 'app_context'):\\n return self.app_context.canonicalize_url(location)\\n else:\\n return location\",\n \" return self.app_context.canonicalize_url(location)\",\n \" return location\",\n \" def redirect(self, location, normalize=True):\\n if normalize:\\n location = self.canonicalize_url(location)\\n super(ApplicationHandler, self).redirect(location)\",\n \" if normalize:\\n location = self.canonicalize_url(location)\",\n \" location = self.canonicalize_url(location)\",\n \" super(ApplicationHandler, self).redirect(location)\",\n \"class CourseHandler(ApplicationHandler):\\n \\\"\\\"\\\"Base handler that is aware of the current course.\\\"\\\"\\\"\\n\\n def __init__(self, *args, **kwargs):\\n super(CourseHandler, self).__init__(*args, **kwargs)\\n self.course = None\\n self.template_value = {}\",\n \" \\\"\\\"\\\"Base handler that is aware of the current course.\\\"\\\"\\\"\",\n \" def __init__(self, *args, **kwargs):\\n super(CourseHandler, self).__init__(*args, **kwargs)\\n self.course = None\\n self.template_value = {}\",\n \" super(CourseHandler, self).__init__(*args, **kwargs)\",\n \" self.course = None\",\n \" self.template_value = {}\",\n \" def get_user(self):\\n \\\"\\\"\\\"Get the current user.\\\"\\\"\\\"\\n return users.get_current_user()\",\n \" \\\"\\\"\\\"Get the current user.\\\"\\\"\\\"\",\n \" return users.get_current_user()\",\n \" def get_student(self):\\n \\\"\\\"\\\"Get the current student.\\\"\\\"\\\"\\n user = self.get_user()\\n if user is None:\\n return None\\n return Student.get_by_email(user.email())\",\n \" \\\"\\\"\\\"Get the current student.\\\"\\\"\\\"\",\n \" user = self.get_user()\",\n \" if user is None:\\n return None\",\n \" return None\",\n \" return Student.get_by_email(user.email())\",\n \" def _pick_first_valid_locale_from_list(self, desired_locales):\\n available_locales = self.app_context.get_allowed_locales()\\n for lang in desired_locales:\\n for available_locale in available_locales:\\n if lang.lower() == available_locale.lower():\\n return lang\\n return None\",\n \" available_locales = self.app_context.get_allowed_locales()\",\n \" for lang in desired_locales:\\n for available_locale in available_locales:\\n if lang.lower() == available_locale.lower():\\n return lang\",\n \" for available_locale in available_locales:\\n if lang.lower() == available_locale.lower():\\n return lang\",\n \" if lang.lower() == available_locale.lower():\\n return lang\",\n \" return lang\",\n \" return None\",\n \" def get_locale_for(self, request, app_context, student=None, prefs=None):\\n \\\"\\\"\\\"Returns a locale that should be used by this request.\\\"\\\"\\\"\\n hl = request.get('hl')\\n if hl and hl in self.app_context.get_allowed_locales():\\n return hl\\n\\n if self.get_user():\\n # check if student has any locale labels assigned\",\n \" \\\"\\\"\\\"Returns a locale that should be used by this request.\\\"\\\"\\\"\",\n \" hl = request.get('hl')\",\n \" if hl and hl in self.app_context.get_allowed_locales():\\n return hl\",\n \" return hl\",\n \" if self.get_user():\\n # check if student has any locale labels assigned\\n if student is None:\\n student = self.get_student()\\n if student and student.is_enrolled and not student.is_transient:\\n student_label_ids = student.get_labels_of_type(\\n models.LabelDTO.LABEL_TYPE_LOCALE)\\n if student_label_ids:\",\n \" if student is None:\\n student = self.get_student()\",\n \" student = self.get_student()\",\n \" if student and student.is_enrolled and not student.is_transient:\\n student_label_ids = student.get_labels_of_type(\\n models.LabelDTO.LABEL_TYPE_LOCALE)\\n if student_label_ids:\\n all_labels = models.LabelDAO.get_all_of_type(\\n models.LabelDTO.LABEL_TYPE_LOCALE)\\n student_locales = []\\n for label in all_labels:\",\n \" student_label_ids = student.get_labels_of_type(\\n models.LabelDTO.LABEL_TYPE_LOCALE)\",\n \" if student_label_ids:\\n all_labels = models.LabelDAO.get_all_of_type(\\n models.LabelDTO.LABEL_TYPE_LOCALE)\\n student_locales = []\\n for label in all_labels:\\n if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\\n continue\\n if label.id in student_label_ids:\",\n \" all_labels = models.LabelDAO.get_all_of_type(\\n models.LabelDTO.LABEL_TYPE_LOCALE)\",\n \" student_locales = []\",\n \" for label in all_labels:\\n if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\\n continue\\n if label.id in student_label_ids:\\n student_locales.append(label.title)\",\n \" if label.type != models.LabelDTO.LABEL_TYPE_LOCALE:\\n continue\",\n \" if label.id in student_label_ids:\\n student_locales.append(label.title)\",\n \" student_locales.append(label.title)\",\n \" locale = self._pick_first_valid_locale_from_list(\\n student_locales)\",\n \" if locale:\\n return locale\",\n \" return locale\",\n \" if prefs is None:\\n prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" if prefs is not None and prefs.locale is not None:\\n return prefs.locale\",\n \" return prefs.locale\",\n \" locale_cookie = self.request.cookies.get(GUEST_LOCALE_COOKIE)\",\n \" if locale_cookie and (\\n locale_cookie in self.app_context.get_allowed_locales()):\\n return locale_cookie\",\n \" return locale_cookie\",\n \" accept_langs = request.headers.get('Accept-Language')\",\n \" locale = self._pick_first_valid_locale_from_list(\\n [lang for lang, _ in locales.parse_accept_language(accept_langs)])\",\n \" if locale:\\n return locale\",\n \" return locale\",\n \" return app_context.default_locale\",\n \" def gettext(self, text):\\n old_locale = self.app_context.get_current_locale()\\n try:\\n new_locale = self.get_locale_for(self.request, self.app_context)\\n self.app_context.set_current_locale(new_locale)\\n return self.app_context.gettext(text)\\n finally:\\n self.app_context.set_current_locale(old_locale)\",\n \" old_locale = self.app_context.get_current_locale()\",\n \" try:\\n new_locale = self.get_locale_for(self.request, self.app_context)\\n self.app_context.set_current_locale(new_locale)\\n return self.app_context.gettext(text)\\n finally:\\n self.app_context.set_current_locale(old_locale)\",\n \" new_locale = self.get_locale_for(self.request, self.app_context)\",\n \" self.app_context.set_current_locale(new_locale)\",\n \" return self.app_context.gettext(text)\",\n \" self.app_context.set_current_locale(old_locale)\",\n \" def get_course(self):\\n \\\"\\\"\\\"Get current course.\\\"\\\"\\\"\\n if not self.course:\\n self.course = Course(self)\\n return self.course\",\n \" \\\"\\\"\\\"Get current course.\\\"\\\"\\\"\",\n \" if not self.course:\\n self.course = Course(self)\",\n \" self.course = Course(self)\",\n \" return self.course\",\n \" def get_track_matching_student(self, student):\\n \\\"\\\"\\\"Gets units whose labels match those on the student.\\\"\\\"\\\"\\n return self.get_course().get_track_matching_student(student)\",\n \" \\\"\\\"\\\"Gets units whose labels match those on the student.\\\"\\\"\\\"\",\n \" return self.get_course().get_track_matching_student(student)\",\n \" def get_progress_tracker(self):\\n \\\"\\\"\\\"Gets the progress tracker for the course.\\\"\\\"\\\"\\n return self.get_course().get_progress_tracker()\",\n \" \\\"\\\"\\\"Gets the progress tracker for the course.\\\"\\\"\\\"\",\n \" return self.get_course().get_progress_tracker()\",\n \" def find_unit_by_id(self, unit_id):\\n \\\"\\\"\\\"Gets a unit with a specific id or fails with an exception.\\\"\\\"\\\"\\n return self.get_course().find_unit_by_id(unit_id)\",\n \" \\\"\\\"\\\"Gets a unit with a specific id or fails with an exception.\\\"\\\"\\\"\",\n \" return self.get_course().find_unit_by_id(unit_id)\",\n \" def get_units(self):\\n \\\"\\\"\\\"Gets all units in the course.\\\"\\\"\\\"\\n return self.get_course().get_units()\",\n \" \\\"\\\"\\\"Gets all units in the course.\\\"\\\"\\\"\",\n \" return self.get_course().get_units()\",\n \" def get_lessons(self, unit_id):\\n \\\"\\\"\\\"Gets all lessons (in order) in the specific course unit.\\\"\\\"\\\"\\n return self.get_course().get_lessons(unit_id)\",\n \" \\\"\\\"\\\"Gets all lessons (in order) in the specific course unit.\\\"\\\"\\\"\",\n \" return self.get_course().get_lessons(unit_id)\",\n \" def _cache_debug_info(cls, cache):\\n items = []\\n for key, entry in cache.items.iteritems():\\n updated_on = None\\n if entry:\\n updated_on = entry.updated_on()\\n items.append('entry: %s, %s' % (key, updated_on))\\n return items\",\n \" items = []\",\n \" for key, entry in cache.items.iteritems():\\n updated_on = None\\n if entry:\\n updated_on = entry.updated_on()\\n items.append('entry: %s, %s' % (key, updated_on))\",\n \" updated_on = None\",\n \" if entry:\\n updated_on = entry.updated_on()\",\n \" updated_on = entry.updated_on()\",\n \" items.append('entry: %s, %s' % (key, updated_on))\",\n \" return items\",\n \" def debug_info(cls):\\n \\\"\\\"\\\"Generates a debug info for this request.\\\"\\\"\\\"\\n\\n # we only want to run import if this method is called; most of the\\n # it is not; we also have circular import dependencies if we were to\\n # put them at the top...\\n from models import vfs\\n from modules.i18n_dashboard import i18n_dashboard\",\n \" \\\"\\\"\\\"Generates a debug info for this request.\\\"\\\"\\\"\",\n \" from models import vfs\",\n \" from modules.i18n_dashboard import i18n_dashboard\",\n \" vfs_items = cls._cache_debug_info(\\n vfs.ProcessScopedVfsCache.instance().cache)\",\n \" rb_items = cls._cache_debug_info(\\n i18n_dashboard.ProcessScopedResourceBundleCache.instance().cache)\",\n \" return ''.join([\\n '\\\\nDebug Info: %s' % datetime.datetime.utcnow(),\\n '\\\\n\\\\nServer Environment Variables: %s' % '\\\\n'.join([\\n 'item: %s, %s' % (key, value)\\n for key, value in os.environ.iteritems()]),\\n '\\\\n\\\\nVfsCacheKeys:\\\\n%s' % '\\\\n'.join(vfs_items),\\n '\\\\n\\\\nResourceBundlesCache:\\\\n%s' % '\\\\n'.join(rb_items),\\n ])\",\n \" def init_template_values(self, environ, prefs=None):\\n \\\"\\\"\\\"Initializes template variables with common values.\\\"\\\"\\\"\\n self.template_value[COURSE_INFO_KEY] = environ\\n self.template_value[\\n 'page_locale'] = self.app_context.get_current_locale()\\n self.template_value['html_hooks'] = HtmlHooks(\\n self.get_course(), prefs=prefs)\\n self.template_value['is_course_admin'] = Roles.is_course_admin(\",\n \" \\\"\\\"\\\"Initializes template variables with common values.\\\"\\\"\\\"\",\n \" self.template_value[COURSE_INFO_KEY] = environ\",\n \" self.template_value[\\n 'page_locale'] = self.app_context.get_current_locale()\",\n \" self.template_value['html_hooks'] = HtmlHooks(\\n self.get_course(), prefs=prefs)\",\n \" self.template_value['is_course_admin'] = Roles.is_course_admin(\\n self.app_context)\",\n \" self.template_value['can_see_drafts'] = (\\n courses_module.courses.can_see_drafts(self.app_context))\",\n \" self.template_value[\\n 'is_read_write_course'] = self.app_context.fs.is_read_write()\",\n \" self.template_value['is_super_admin'] = Roles.is_super_admin()\",\n \" self.template_value[COURSE_BASE_KEY] = self.get_base_href(self)\",\n \" self.template_value['left_links'] = []\",\n \" for func in self.LEFT_LINKS:\\n self.template_value['left_links'].extend(func(self.app_context))\",\n \" self.template_value['left_links'].extend(func(self.app_context))\",\n \" self.template_value['right_links'] = []\",\n \" for func in self.RIGHT_LINKS:\\n self.template_value['right_links'].extend(func(self.app_context))\",\n \" self.template_value['right_links'].extend(func(self.app_context))\",\n \" if not prefs:\\n prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" self.template_value['student_preferences'] = prefs\",\n \" if (Roles.is_course_admin(self.app_context) and\\n not appengine_config.PRODUCTION_MODE and\\n prefs and prefs.show_jinja_context):\\n\\n @jinja2.contextfunction\\n def get_context(context):\\n return context\\n self.template_value['context'] = get_context\",\n \" def get_context(context):\\n return context\",\n \" return context\",\n \" self.template_value['context'] = get_context\",\n \" if CAN_PUT_DEBUG_INFO_INTO_PAGES.value:\\n self.template_value['debug_info'] = self.debug_info()\",\n \" self.template_value['debug_info'] = self.debug_info()\",\n \" self.template_value[\\n 'extra_global_css_urls'] = self.EXTRA_GLOBAL_CSS_URLS\",\n \" self.template_value[\\n 'extra_global_js_urls'] = self.EXTRA_GLOBAL_JS_URLS\",\n \" can_student_change_locale = (\\n self.get_course().get_course_setting('can_student_change_locale')\\n or self.get_course().app_context.can_pick_all_locales())\",\n \" if can_student_change_locale:\\n self.template_value['available_locales'] = [\\n {\\n 'name': locales.get_locale_display_name(loc),\\n 'value': loc\\n } for loc in self.app_context.get_allowed_locales()]\\n self.template_value['locale_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token(\",\n \" self.template_value['available_locales'] = [\\n {\\n 'name': locales.get_locale_display_name(loc),\\n 'value': loc\\n } for loc in self.app_context.get_allowed_locales()]\",\n \" self.template_value['locale_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token(\\n StudentLocaleRESTHandler.XSRF_TOKEN_NAME))\",\n \" self.template_value['selected_locale'] = self.get_locale_for(\\n self.request, self.app_context, prefs=prefs)\",\n \" def get_template(self, template_file, additional_dirs=None, prefs=None):\\n \\\"\\\"\\\"Computes location of template files for the current namespace.\\\"\\\"\\\"\\n\\n _p = self.app_context.get_environ()\\n self.init_template_values(_p, prefs=prefs)\\n template_environ = self.app_context.get_template_environ(\\n self.app_context.get_current_locale(), additional_dirs)\\n template_environ.filters[\",\n \" \\\"\\\"\\\"Computes location of template files for the current namespace.\\\"\\\"\\\"\",\n \" _p = self.app_context.get_environ()\",\n \" self.init_template_values(_p, prefs=prefs)\",\n \" template_environ = self.app_context.get_template_environ(\\n self.app_context.get_current_locale(), additional_dirs)\",\n \" template_environ.filters[\\n 'gcb_tags'] = jinja_utils.get_gcb_tags_filter(self)\",\n \" template_environ.globals.update({\\n 'display_unit_title': (\\n lambda unit: resources_display.display_unit_title(\\n unit, self.app_context)),\\n 'display_short_unit_title': (\\n lambda unit: resources_display.display_short_unit_title(\\n unit, self.app_context)),\\n 'display_lesson_title': (\",\n \" return template_environ.get_template(template_file)\",\n \"class BaseHandler(CourseHandler):\\n \\\"\\\"\\\"Base handler.\\\"\\\"\\\"\\n\\n def __init__(self, *args, **kwargs):\\n super(BaseHandler, self).__init__(*args, **kwargs)\\n self._old_locale = None\\n\\n def before_method(self, verb, path):\",\n \" \\\"\\\"\\\"Base handler.\\\"\\\"\\\"\",\n \" def __init__(self, *args, **kwargs):\\n super(BaseHandler, self).__init__(*args, **kwargs)\\n self._old_locale = None\",\n \" super(BaseHandler, self).__init__(*args, **kwargs)\",\n \" self._old_locale = None\",\n \" def before_method(self, verb, path):\\n \\\"\\\"\\\"Modify global locale value for the duration of this handler.\\\"\\\"\\\"\\n self._old_locale = self.app_context.get_current_locale()\\n new_locale = self.get_locale_for(self.request, self.app_context)\\n self.app_context.set_current_locale(new_locale)\",\n \" \\\"\\\"\\\"Modify global locale value for the duration of this handler.\\\"\\\"\\\"\",\n \" self._old_locale = self.app_context.get_current_locale()\",\n \" new_locale = self.get_locale_for(self.request, self.app_context)\",\n \" self.app_context.set_current_locale(new_locale)\",\n \" def after_method(self, verb, path):\\n \\\"\\\"\\\"Restore original global locale value.\\\"\\\"\\\"\\n self.app_context.set_current_locale(self._old_locale)\",\n \" \\\"\\\"\\\"Restore original global locale value.\\\"\\\"\\\"\",\n \" self.app_context.set_current_locale(self._old_locale)\",\n \" def personalize_page_and_get_user(self):\\n \\\"\\\"\\\"If the user exists, add personalized fields to the navbar.\\\"\\\"\\\"\\n user = self.get_user()\\n PageInitializerService.get().initialize(self.template_value)\\n\\n if hasattr(self, 'app_context'):\\n self.template_value['can_register'] = self.app_context.get_environ(\\n )['reg_form']['can_register']\",\n \" \\\"\\\"\\\"If the user exists, add personalized fields to the navbar.\\\"\\\"\\\"\",\n \" user = self.get_user()\",\n \" PageInitializerService.get().initialize(self.template_value)\",\n \" if hasattr(self, 'app_context'):\\n self.template_value['can_register'] = self.app_context.get_environ(\\n )['reg_form']['can_register']\",\n \" self.template_value['can_register'] = self.app_context.get_environ(\\n )['reg_form']['can_register']\",\n \" if user:\\n email = user.email()\\n self.template_value['email_no_domain_name'] = (\\n email[:email.find('@')] if '@' in email else email)\\n self.template_value['email'] = email\\n self.template_value['logoutUrl'] = (\\n users.create_logout_url(self.request.uri))\\n self.template_value['transient_student'] = False\",\n \" email = user.email()\",\n \" self.template_value['email_no_domain_name'] = (\\n email[:email.find('@')] if '@' in email else email)\",\n \" self.template_value['email'] = email\",\n \" self.template_value['logoutUrl'] = (\\n users.create_logout_url(self.request.uri))\",\n \" self.template_value['transient_student'] = False\",\n \" self.template_value['record_tag_events'] = (\\n CAN_PERSIST_TAG_EVENTS.value)\",\n \" self.template_value['record_page_events'] = (\\n CAN_PERSIST_PAGE_EVENTS.value)\",\n \" self.template_value['record_events'] = (\\n CAN_PERSIST_ACTIVITY_EVENTS.value)\",\n \" self.template_value['event_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('event-post'))\",\n \" self.template_value['loginUrl'] = users.create_login_url(\\n self.request.uri)\",\n \" self.template_value['transient_student'] = True\",\n \" return None\",\n \" return user\",\n \" def personalize_page_and_get_enrolled(\\n self, supports_transient_student=False):\\n \\\"\\\"\\\"If the user is enrolled, add personalized fields to the navbar.\\\"\\\"\\\"\\n user = self.personalize_page_and_get_user()\\n if user is None:\\n student = TRANSIENT_STUDENT\\n else:\\n student = Student.get_enrolled_student_by_email(user.email())\",\n \" \\\"\\\"\\\"If the user is enrolled, add personalized fields to the navbar.\\\"\\\"\\\"\",\n \" user = self.personalize_page_and_get_user()\",\n \" if user is None:\\n student = TRANSIENT_STUDENT\\n else:\\n student = Student.get_enrolled_student_by_email(user.email())\\n if not student:\\n self.template_value['transient_student'] = True\\n student = TRANSIENT_STUDENT\",\n \" student = TRANSIENT_STUDENT\",\n \" student = Student.get_enrolled_student_by_email(user.email())\",\n \" if not student:\\n self.template_value['transient_student'] = True\\n student = TRANSIENT_STUDENT\",\n \" self.template_value['transient_student'] = True\",\n \" student = TRANSIENT_STUDENT\",\n \" if student.is_transient:\\n if supports_transient_student and (\\n self.app_context.get_environ()['course']['browsable']):\\n return TRANSIENT_STUDENT\\n elif user is None:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False\\n )\",\n \" if supports_transient_student and (\\n self.app_context.get_environ()['course']['browsable']):\\n return TRANSIENT_STUDENT\\n elif user is None:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False\\n )\\n return None\",\n \" return TRANSIENT_STUDENT\",\n \" elif user is None:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False\\n )\\n return None\\n else:\\n self.redirect('/preview')\\n return None\",\n \" self.redirect(\\n users.create_login_url(self.request.uri), normalize=False\\n )\",\n \" return None\",\n \" self.redirect('/preview')\",\n \" return None\",\n \" if not student.user_id:\\n student.user_id = user.user_id()\\n student.put()\",\n \" student.user_id = user.user_id()\",\n \" student.put()\",\n \" return student\",\n \" def assert_xsrf_token_or_fail(self, request, action):\\n \\\"\\\"\\\"Asserts the current request has proper XSRF token or fails.\\\"\\\"\\\"\\n token = request.get('xsrf_token')\\n if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\\n self.error(403)\\n return False\\n return True\",\n \" \\\"\\\"\\\"Asserts the current request has proper XSRF token or fails.\\\"\\\"\\\"\",\n \" token = request.get('xsrf_token')\",\n \" if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\\n self.error(403)\\n return False\",\n \" self.error(403)\",\n \" return False\",\n \" return True\",\n \" def render(self, template_file, additional_dirs=None):\\n \\\"\\\"\\\"Renders a template.\\\"\\\"\\\"\\n prefs = models.StudentPreferencesDAO.load_or_create()\\n\\n courses.Course.set_current(self.get_course())\\n models.MemcacheManager.begin_readonly()\\n try:\\n template = self.get_template(\",\n \" \\\"\\\"\\\"Renders a template.\\\"\\\"\\\"\",\n \" prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" courses.Course.set_current(self.get_course())\",\n \" models.MemcacheManager.begin_readonly()\",\n \" try:\\n template = self.get_template(\\n template_file, additional_dirs=additional_dirs, prefs=prefs)\\n self.response.out.write(template.render(self.template_value))\\n finally:\\n models.MemcacheManager.end_readonly()\\n courses.Course.clear_current()\",\n \" template = self.get_template(\\n template_file, additional_dirs=additional_dirs, prefs=prefs)\",\n \" self.response.out.write(template.render(self.template_value))\",\n \" models.MemcacheManager.end_readonly()\",\n \" courses.Course.clear_current()\",\n \" user = self.get_user()\",\n \" if user:\\n student = models.Student.get_enrolled_student_by_email(\\n user.email())\\n if student:\\n prefs.last_location = self.request.path_qs\\n models.StudentPreferencesDAO.save(prefs)\",\n \" student = models.Student.get_enrolled_student_by_email(\\n user.email())\",\n \" if student:\\n prefs.last_location = self.request.path_qs\\n models.StudentPreferencesDAO.save(prefs)\",\n \" prefs.last_location = self.request.path_qs\",\n \" models.StudentPreferencesDAO.save(prefs)\",\n \" def get_redirect_location(self, student):\\n if (not student.is_transient and\\n (self.request.path == self.app_context.get_slug() or\\n self.request.path == self.app_context.get_slug() + '/' or\\n self.request.get('use_last_location'))): # happens on '/' page\\n prefs = models.StudentPreferencesDAO.load_or_create()\\n # Belt-and-suspenders: prevent infinite self-redirects\\n if (prefs.last_location and\",\n \" if (not student.is_transient and\\n (self.request.path == self.app_context.get_slug() or\\n self.request.path == self.app_context.get_slug() + '/' or\\n self.request.get('use_last_location'))): # happens on '/' page\\n prefs = models.StudentPreferencesDAO.load_or_create()\\n # Belt-and-suspenders: prevent infinite self-redirects\\n if (prefs.last_location and\\n prefs.last_location != self.request.path_qs):\",\n \" prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" if (prefs.last_location and\\n prefs.last_location != self.request.path_qs):\\n return prefs.last_location\",\n \" return prefs.last_location\",\n \" return None\",\n \"class BaseRESTHandler(CourseHandler):\\n \\\"\\\"\\\"Base REST handler.\\\"\\\"\\\"\\n\\n def __init__(self, *args, **kwargs):\\n super(BaseRESTHandler, self).__init__(*args, **kwargs)\\n\\n def assert_xsrf_token_or_fail(self, token_dict, action, args_dict):\\n \\\"\\\"\\\"Asserts that current request has proper XSRF token or fails.\\\"\\\"\\\"\",\n \" \\\"\\\"\\\"Base REST handler.\\\"\\\"\\\"\",\n \" def __init__(self, *args, **kwargs):\\n super(BaseRESTHandler, self).__init__(*args, **kwargs)\",\n \" super(BaseRESTHandler, self).__init__(*args, **kwargs)\",\n \" def assert_xsrf_token_or_fail(self, token_dict, action, args_dict):\\n \\\"\\\"\\\"Asserts that current request has proper XSRF token or fails.\\\"\\\"\\\"\\n token = token_dict.get('xsrf_token')\\n if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\\n transforms.send_json_response(\\n self, 403,\\n 'Bad XSRF token. Please reload the page and try again',\\n args_dict)\",\n \" \\\"\\\"\\\"Asserts that current request has proper XSRF token or fails.\\\"\\\"\\\"\",\n \" token = token_dict.get('xsrf_token')\",\n \" if not token or not XsrfTokenManager.is_xsrf_token_valid(token, action):\\n transforms.send_json_response(\\n self, 403,\\n 'Bad XSRF token. Please reload the page and try again',\\n args_dict)\\n return False\",\n \" transforms.send_json_response(\\n self, 403,\\n 'Bad XSRF token. Please reload the page and try again',\\n args_dict)\",\n \" return False\",\n \" return True\",\n \" def validation_error(self, message, key=None):\\n \\\"\\\"\\\"Deliver a validation message.\\\"\\\"\\\"\\n if key:\\n transforms.send_json_response(\\n self, 412, message, payload_dict={'key': key})\\n else:\\n transforms.send_json_response(self, 412, message)\",\n \" \\\"\\\"\\\"Deliver a validation message.\\\"\\\"\\\"\",\n \" if key:\\n transforms.send_json_response(\\n self, 412, message, payload_dict={'key': key})\\n else:\\n transforms.send_json_response(self, 412, message)\",\n \" transforms.send_json_response(\\n self, 412, message, payload_dict={'key': key})\",\n \" transforms.send_json_response(self, 412, message)\",\n \"class PreviewHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for viewing course preview.\\\"\\\"\\\"\\n\\n def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n user = self.personalize_page_and_get_user()\\n if user is None:\\n student = TRANSIENT_STUDENT\",\n \" \\\"\\\"\\\"Handler for viewing course preview.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n user = self.personalize_page_and_get_user()\\n if user is None:\\n student = TRANSIENT_STUDENT\\n else:\\n student = Student.get_enrolled_student_by_email(user.email())\\n if not student:\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" user = self.personalize_page_and_get_user()\",\n \" if user is None:\\n student = TRANSIENT_STUDENT\\n else:\\n student = Student.get_enrolled_student_by_email(user.email())\\n if not student:\\n student = TRANSIENT_STUDENT\",\n \" student = TRANSIENT_STUDENT\",\n \" student = Student.get_enrolled_student_by_email(user.email())\",\n \" if not student:\\n student = TRANSIENT_STUDENT\",\n \" student = TRANSIENT_STUDENT\",\n \" if ((student and not student.is_transient) or\\n self.app_context.get_environ()['course']['browsable']):\\n self.redirect('/course')\\n return\",\n \" self.redirect('/course')\",\n \" return\",\n \" self.template_value['transient_student'] = True\",\n \" self.template_value['can_register'] = self.app_context.get_environ(\\n )['reg_form']['can_register']\",\n \" self.template_value['navbar'] = {'course': True}\",\n \" self.template_value['units'] = self.get_units()\",\n \" self.template_value['show_registration_page'] = True\",\n \" course = self.app_context.get_environ()['course']\",\n \" self.template_value['video_exists'] = bool(\\n 'main_video' in course and\\n 'url' in course['main_video'] and\\n course['main_video']['url'])\",\n \" self.template_value['image_exists'] = bool(\\n 'main_image' in course and\\n 'url' in course['main_image'] and\\n course['main_image']['url'])\",\n \" if user:\\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\\n additional_registration_fields = self.app_context.get_environ(\\n )['reg_form']['additional_registration_fields']\\n if profile is not None and not additional_registration_fields:\\n self.template_value['show_registration_page'] = False\\n self.template_value['register_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('register-post'))\",\n \" profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\",\n \" additional_registration_fields = self.app_context.get_environ(\\n )['reg_form']['additional_registration_fields']\",\n \" if profile is not None and not additional_registration_fields:\\n self.template_value['show_registration_page'] = False\\n self.template_value['register_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('register-post'))\",\n \" self.template_value['show_registration_page'] = False\",\n \" self.template_value['register_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('register-post'))\",\n \" self.render('preview.html')\",\n \"class RegisterHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for course registration.\\\"\\\"\\\"\\n\\n def get(self):\\n \\\"\\\"\\\"Handles GET request.\\\"\\\"\\\"\\n user = self.personalize_page_and_get_user()\\n if not user:\\n self.redirect(\",\n \" \\\"\\\"\\\"Handler for course registration.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET request.\\\"\\\"\\\"\\n user = self.personalize_page_and_get_user()\\n if not user:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False)\\n return\",\n \" \\\"\\\"\\\"Handles GET request.\\\"\\\"\\\"\",\n \" user = self.personalize_page_and_get_user()\",\n \" if not user:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False)\\n return\",\n \" self.redirect(\\n users.create_login_url(self.request.uri), normalize=False)\",\n \" return\",\n \" student = Student.get_enrolled_student_by_email(user.email())\",\n \" if student:\\n self.redirect('/course')\\n return\",\n \" self.redirect('/course')\",\n \" return\",\n \" can_register = self.app_context.get_environ(\\n )['reg_form']['can_register']\",\n \" if not can_register:\\n self.redirect('/course#registration_closed')\\n return\",\n \" self.redirect('/course#registration_closed')\",\n \" return\",\n \" self.template_value['current_name'] = ''\",\n \" profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\",\n \" if profile and profile.nick_name:\\n self.template_value['current_name'] = profile.nick_name\",\n \" self.template_value['current_name'] = profile.nick_name\",\n \" self.template_value['navbar'] = {}\",\n \" self.template_value['transient_student'] = True\",\n \" self.template_value['register_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('register-post'))\",\n \" self.render('register.html')\",\n \" def post(self):\\n \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\\n user = self.personalize_page_and_get_user()\\n if not user:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False)\\n return\",\n \" \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\",\n \" user = self.personalize_page_and_get_user()\",\n \" if not user:\\n self.redirect(\\n users.create_login_url(self.request.uri), normalize=False)\\n return\",\n \" self.redirect(\\n users.create_login_url(self.request.uri), normalize=False)\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(self.request, 'register-post'):\\n return\",\n \" return\",\n \" can_register = self.app_context.get_environ(\\n )['reg_form']['can_register']\",\n \" if not can_register:\\n self.redirect('/course#registration_closed')\\n return\",\n \" self.redirect('/course#registration_closed')\",\n \" return\",\n \" if 'name_from_profile' in self.request.POST.keys():\\n profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\\n name = profile.nick_name\\n else:\\n name = self.request.get('form01')\",\n \" profile = StudentProfileDAO.get_profile_by_user_id(user.user_id())\",\n \" name = profile.nick_name\",\n \" name = self.request.get('form01')\",\n \" Student.add_new_student_for_current_user(\\n name, transforms.dumps(self.request.POST.items()), self,\\n labels=self.request.get('labels'))\",\n \" self.redirect('/course#registration_confirmation')\",\n \"class ForumHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for forum page.\\\"\\\"\\\"\\n\\n def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\\n if not student:\",\n \" \\\"\\\"\\\"Handler for forum page.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\\n if not student:\\n return\\n\\n self.template_value['navbar'] = {'forum': True}\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled(\\n supports_transient_student=True)\",\n \" if not student:\\n return\",\n \" return\",\n \" self.template_value['navbar'] = {'forum': True}\",\n \" self.render('forum.html')\",\n \"class StudentProfileHandler(BaseHandler):\\n \\\"\\\"\\\"Handles the click to 'Progress' link in the nav bar.\\\"\\\"\\\"\\n\\n # A list of functions which will provide extra rows in the Student Progress\\n # table. Each function will be passed the current handler, student, and\\n # course object and should return a pair of strings; the first being the\\n # title of the data and the second the value to display.\\n EXTRA_STUDENT_DATA_PROVIDERS = []\",\n \" \\\"\\\"\\\"Handles the click to 'Progress' link in the nav bar.\\\"\\\"\\\"\",\n \" EXTRA_STUDENT_DATA_PROVIDERS = []\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n track_labels = models.LabelDAO.get_all_of_type(\\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" track_labels = models.LabelDAO.get_all_of_type(\\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\",\n \" course = self.get_course()\",\n \" units = []\",\n \" for unit in course.get_units():\\n # Don't show assessments that are part of units.\\n if course.get_parent_unit(unit.unit_id):\\n continue\\n units.append({\\n 'unit_id': unit.unit_id,\\n 'title': unit.title,\\n 'labels': list(course.get_unit_track_labels(unit)),\",\n \" if course.get_parent_unit(unit.unit_id):\\n continue\",\n \" units.append({\\n 'unit_id': unit.unit_id,\\n 'title': unit.title,\\n 'labels': list(course.get_unit_track_labels(unit)),\\n })\",\n \" name = student.name\",\n \" profile = student.profile\",\n \" if profile:\\n name = profile.nick_name\",\n \" name = profile.nick_name\",\n \" student_labels = student.get_labels_of_type(\\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\",\n \" self.template_value['navbar'] = {'progress': True}\",\n \" self.template_value['student'] = student\",\n \" self.template_value['student_name'] = name\",\n \" self.template_value['date_enrolled'] = student.enrolled_on.strftime(\\n HUMAN_READABLE_DATE_FORMAT)\",\n \" self.template_value['score_list'] = course.get_all_scores(student)\",\n \" self.template_value['overall_score'] = course.get_overall_score(student)\",\n \" self.template_value['student_edit_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('student-edit'))\",\n \" self.template_value['can_edit_name'] = (\\n not models.CAN_SHARE_STUDENT_PROFILE.value)\",\n \" self.template_value['track_labels'] = track_labels\",\n \" self.template_value['student_labels'] = student_labels\",\n \" self.template_value['units'] = units\",\n \" self.template_value['track_env'] = transforms.dumps({\\n 'label_ids': [label.id for label in track_labels],\\n 'units': units\\n })\",\n \" extra_student_data = []\",\n \" for data_provider in self.EXTRA_STUDENT_DATA_PROVIDERS:\\n extra_student_data.append(data_provider(self, student, course))\",\n \" extra_student_data.append(data_provider(self, student, course))\",\n \" self.template_value['extra_student_data'] = extra_student_data\",\n \" self.render('student_profile.html')\",\n \"class StudentEditStudentHandler(BaseHandler):\\n \\\"\\\"\\\"Handles edits to student records by students.\\\"\\\"\\\"\\n\\n def post(self):\\n \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\",\n \" \\\"\\\"\\\"Handles edits to student records by students.\\\"\\\"\\\"\",\n \" def post(self):\\n \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\\n return\",\n \" \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\\n return\",\n \" return\",\n \" Student.rename_current(self.request.get('name'))\",\n \" self.redirect('/student/home')\",\n \"class StudentSetTracksHandler(BaseHandler):\\n \\\"\\\"\\\"Handles submission of student tracks selections.\\\"\\\"\\\"\\n\\n def post(self):\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\",\n \" \\\"\\\"\\\"Handles submission of student tracks selections.\\\"\\\"\\\"\",\n \" def post(self):\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\\n return\\n\\n all_track_label_ids = models.LabelDAO.get_set_of_ids_of_type(\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(self.request, 'student-edit'):\\n return\",\n \" return\",\n \" all_track_label_ids = models.LabelDAO.get_set_of_ids_of_type(\\n models.LabelDTO.LABEL_TYPE_COURSE_TRACK)\",\n \" new_track_label_ids = set(\\n [int(label_id)\\n for label_id in self.request.get_all('labels')\\n if label_id and int(label_id) in all_track_label_ids])\",\n \" student_label_ids = set(\\n [int(label_id)\\n for label_id in common_utils.text_to_list(student.labels)\\n if label_id])\",\n \" student_label_ids = student_label_ids.difference(all_track_label_ids)\",\n \" student_label_ids = student_label_ids.union(new_track_label_ids)\",\n \" models.Student.set_labels_for_current(\\n common_utils.list_to_text(list(student_label_ids)))\",\n \" self.redirect('/student/home')\",\n \"class StudentUnenrollHandler(BaseHandler):\\n \\\"\\\"\\\"Handler for students to unenroll themselves.\\\"\\\"\\\"\\n\\n def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\",\n \" \\\"\\\"\\\"Handler for students to unenroll themselves.\\\"\\\"\\\"\",\n \" def get(self):\\n \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n self.template_value['student'] = student\\n self.template_value['navbar'] = {}\",\n \" \\\"\\\"\\\"Handles GET requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" self.template_value['student'] = student\",\n \" self.template_value['navbar'] = {}\",\n \" self.template_value['student_unenroll_xsrf_token'] = (\\n XsrfTokenManager.create_xsrf_token('student-unenroll'))\",\n \" self.render('unenroll_confirmation_check.html')\",\n \" def post(self):\\n \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\\n student = self.personalize_page_and_get_enrolled()\\n if not student:\\n return\\n\\n if not self.assert_xsrf_token_or_fail(self.request, 'student-unenroll'):\\n return\",\n \" \\\"\\\"\\\"Handles POST requests.\\\"\\\"\\\"\",\n \" student = self.personalize_page_and_get_enrolled()\",\n \" if not student:\\n return\",\n \" return\",\n \" if not self.assert_xsrf_token_or_fail(self.request, 'student-unenroll'):\\n return\",\n \" return\",\n \" Student.set_enrollment_status_for_current(False)\",\n \" self.template_value['navbar'] = {}\",\n \" self.template_value['transient_student'] = True\",\n \" self.render('unenroll_confirmation.html')\",\n \"class StudentLocaleRESTHandler(BaseRESTHandler):\\n \\\"\\\"\\\"REST handler to manage student setting their preferred locale.\\\"\\\"\\\"\\n\\n XSRF_TOKEN_NAME = 'locales'\\n\\n def post(self):\\n request = transforms.loads(self.request.get('request'))\\n if not self.assert_xsrf_token_or_fail(\",\n \" \\\"\\\"\\\"REST handler to manage student setting their preferred locale.\\\"\\\"\\\"\",\n \" XSRF_TOKEN_NAME = 'locales'\",\n \" def post(self):\\n request = transforms.loads(self.request.get('request'))\\n if not self.assert_xsrf_token_or_fail(\\n request, self.XSRF_TOKEN_NAME, {}):\\n return\\n\\n selected = request['payload']['selected']\\n if selected not in self.app_context.get_allowed_locales():\",\n \" request = transforms.loads(self.request.get('request'))\",\n \" if not self.assert_xsrf_token_or_fail(\\n request, self.XSRF_TOKEN_NAME, {}):\\n return\",\n \" return\",\n \" selected = request['payload']['selected']\",\n \" if selected not in self.app_context.get_allowed_locales():\\n transforms.send_json_response(self, 401, 'Bad locale')\\n return\",\n \" transforms.send_json_response(self, 401, 'Bad locale')\",\n \" return\",\n \" prefs = models.StudentPreferencesDAO.load_or_create()\",\n \" if prefs:\\n # Store locale in StudentPreferences for logged-in users\\n prefs.locale = selected\\n models.StudentPreferencesDAO.save(prefs)\\n else:\\n # Store locale in cookie for out-of-session users\\n self.response.set_cookie(\\n GUEST_LOCALE_COOKIE, selected,\",\n \" prefs.locale = selected\",\n \" models.StudentPreferencesDAO.save(prefs)\",\n \" self.response.set_cookie(\\n GUEST_LOCALE_COOKIE, selected,\\n max_age=GUEST_LOCALE_COOKIE_MAX_AGE_SEC)\",\n \" transforms.send_json_response(self, 200, 'OK')\"\n]","isConversational":false}}}],"truncated":false,"partial":false},"paginationData":{"pageIndex":47,"numItemsPerPage":100,"numTotalItems":90606,"offset":4700,"length":100}},"jwt":"eyJhbGciOiJFZERTQSJ9.eyJyZWFkIjp0cnVlLCJwZXJtaXNzaW9ucyI6eyJyZXBvLmNvbnRlbnQucmVhZCI6dHJ1ZX0sImlhdCI6MTc3NjM3MDE3MSwic3ViIjoiL2RhdGFzZXRzL2Jyb2FkZmllbGQtZGV2L3B5dGhvbi1jb2RldmVjLXZlY3RvcnMtMSIsImV4cCI6MTc3NjM3Mzc3MSwiaXNzIjoiaHR0cHM6Ly9odWdnaW5nZmFjZS5jbyJ9.bkdiisQSWOANEw4OA9TWutF5BmD7OnKCiucDydjAVD7YdZvV0AoJ2Fi3v7yWs176ouz9MCXlTx5ni_pmYaAODg","displayUrls":true,"splitSizeSummaries":[{"config":"default","split":"train","numRows":90606,"numBytesParquet":1330034558}]},"discussionsStats":{"closed":0,"open":0,"total":0},"fullWidth":true,"hasGatedAccess":true,"hasFullAccess":true,"isEmbedded":false,"savedQueries":{"community":[],"user":[]}}">
code stringlengths 1 1.49M | vector listlengths 0 7.38k | snippet listlengths 0 7.38k |
|---|---|---|
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Setup for tests exercising visualization displays.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"from common import schema_fields",
"from controllers import utils",
"from models import analytics",
"from models import custom_modules",
"from models import data_sources",
"from module... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Performance test for a peer review system.\n\nWARNING! Use this script to test load Course Builder. This is very dangerous\nfeature, be careful, because anyone can impersonate super user of your Course\nBuilder instance; use only if you have to perform specific load testing\n\nKeep in mind:\n - when repea... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Page objects used in functional tests for Course Builder.\"\"\"",
"__author__ = [\n 'John Orr (jorr@google.com)'\n]",
"import re",
"import time",
"from selenium.common import exceptions",
"from selenium.webdriver.common import action_chains",
"from selenium.webdriver.common import by",
"from... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for extra tabs added to the navbar.\"\"\"",
"__author__ = 'John Orr (jorr@google.com)'",
"from controllers import sites",
"from models import courses",
"from models import resources_display",
"from models import models",
"from modules.i18n_dashboard.i18n_dashboard import ResourceBundleDAO",... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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... | [
"\"\"\"Functional tests for models.models.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n]",
"import datetime",
"from models import entities",
"from models import entity_transforms",
"from models import transforms",
"from tests.functional import actions",
"from google.appengine.ext im... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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[
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0.66... | [
"\"\"\"Verify operation of student setting to remember last page visited.\"\"\"",
"from common import utils as common_utils",
"from controllers import sites",
"from models import config",
"from models import courses",
"from models import models",
"from tests.functional import actions",
"COURSE_NAME = ... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for modules/review/peer.py.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n]",
"from models import models",
"from models import student_work",
"from modules.review import domain",
"from modules.review import peer",
"from tests.functional import actions",
"from g... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for the oeditor module.\"\"\"",
"__author__ = [\n 'John Cox (johncox@google.com)',\n]",
"from models import config",
"from models import courses",
"from tests.functional import actions",
"class ObjectEditorTest(actions.TestBase):\n\n def tearDown(self):\n config.Regist... |
# coding: utf-8
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by ap... | [
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"\"\"\"Tests for modules/review/stats.py.\"\"\"",
"__author__ = 'Sean Lip'",
"import actions",
"from actions import assert_contains",
"from controllers_review import get_review_payload",
"from controllers_review import get_review_step_key",
"from controllers_review import LEGACY_REVIEW_UNIT_ID",
"clas... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for the code_tags module.\"\"\"",
"__author__ = 'Gun Pinyo (gunpinyo@google.com)'",
"from models import config",
"from models import courses",
"from modules.oeditor import oeditor",
"from tests.functional import actions",
"class CodeTagTests(actions.TestBase):\n \"\"\"Tests for the code ... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for modules/dashboard/.\"\"\"",
"__author__ = 'Glenn De Jonghe (gdejonghe@google.com)'",
"import cgi",
"import time",
"import actions",
"from common import crypto",
"from common.utils import Namespace",
"from models import courses",
"from models import models",
"from models import tra... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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0.66,... | [
"\"\"\"Tests the capability for registered students to invite others.\"\"\"",
"__author__ = 'John Orr (jorr@google.com)'",
"import urlparse",
"from common import crypto",
"from models import courses",
"from models import models",
"from models import transforms",
"from modules.invitation import invitat... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Analytics for extracting facts based on StudentAnswerEntity entries.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import collections",
"from common import crypto",
"from common import utils as common_utils",
"from models import courses",
"from models import models",
"from models ... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"\"\"\"Functional tests for modules/course_explorer/course_explorer.py.\"\"\"",
"__author__ = 'rahulsingal@google.com (Rahul Singal)'",
"import actions",
"from actions import assert_contains",
"from actions import assert_does_not_contain",
"from actions import assert_equals",
"from controllers import si... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"\"\"\"Functional tests for models/review.py.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n]",
"from models import entities",
"from models import models",
"from models import student_work",
"from models import transforms",
"from tests.functional import actions",
"from google.appengin... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"\"\"\"Tests for unit header/footer presence.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"from models import courses",
"from tests.functional import actions",
"COURSE_NAME = 'unit_header_footer'",
"COURSE_TITLE = 'Unit Header Footer'",
"ADMIN_EMAIL = 'admin@foo.com'",
"BASE_URL = '/' +... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for the balancer module.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n]",
"import types",
"from models import config",
"from models import transforms",
"from modules.balancer import balancer",
"from tests.functional import actions",
"from google.appengine.api ... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests that verify asset handling via REST.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import cgi",
"import os",
"import urllib",
"from common import crypto",
"from models import transforms",
"from modules.dashboard import filer",
"from tests.functional import actions",
"COU... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests that walk through Course Builder pages.\"\"\"",
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"import urllib",
"from common import crypto",
"from controllers import sites",
"from models import config",
"from models import models",
"from models import roles",
"from models import tra... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"COURSE_NAME = 'unit_descriptions'",
"COURSE_TITLE = 'Unit Descriptions'",
"ADMIN_EMAIL = 'admin@foo.com'",
"BASE_URL = '/' + COU... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import config",
"from models import courses",
"from models import models",
"from models import vfs",
"from tests.functional import ac... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"import time",
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"from common import catch_and_log",
"from common import crypto",
"from common import utils as common_utils",
"from models imp... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import counters",
"from modules.notifications import cron",
"from modules.notificat... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
# http://www.apache.org/licenses/LICENSE-2.0
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"from common import crypto",
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"from models import models",
"from models import transforms",
"from models.data_sources import utils as dat... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import student_work",
"from modules.review import domain",
"from modules.review import peer",
"from modules.review import r... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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"COURSE_NAME = 'unit_test'",
"COURSE_TITLE = 'Unit Test'",
"NAMESPACE = 'ns_%s' % COURSE_NA... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import entities",
"from models import models",
"from models import services",
"from modules.notifications import notifications",
... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from controllers import sites",
"from models import courses",
"from models import models",
"from tests.functional import actions",
"COURSE_NAME =... |
# coding: utf-8
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"__author__ = 'John Orr (jorr@google.com)'",
"import cgi",
"import collections",
"import cStringIO",
"import StringIO",
"import traceback",
"import unittest",
"import urllib",
"import zipfile",
"from babel.messages import pofile"... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or ... | [
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"__author__ = 'Mike Gainer (mgainer@google.com)'",
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"import actions",
"from common import crypto",
"URLSAFE_B64_ALPHABET = re.compile('^[a-zA-Z0-9-_=]+$')",
"class EncryptionManagerTests(actions.TestBase):\n\n def test_hmac_is_consistent(self):... |
# coding: utf-8
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from actions import assert_contains",
"from actions import assert_does_not_contain",
"from actions import assert_equals",
"from controllers import sites",
"from controllers import ... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"import re",
"import urllib",
"from common import crypto",
"from common import utils as common_utils",
"from controllers import sites",
"from controllers impor... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from controllers import sites",
"from models import courses",
"from models import models",
"from models import transforms",
... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
# http://www.apache.org/licenses/LICENSE-2.0
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"from common import crypto",
"from common import utils as common_utils",
"from controllers import utils",
"from models import config",
"from models import courses",
"from models import model... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import transforms",
"from tests.functional import actions",
"COURSE_NAME = ... |
# coding: utf-8
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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"import time",
"import actions",
"from actions import assert_contains",
"from actions import assert_does_not_contain",
"from actions import assert_equals",
"from map... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import models",
"from modules.courses import courses as courses_module",
"from google.appengine.api import namespace_manager",
"class AccessD... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"import actions",
"import apiclient",
"from common import catch_and_log",
"from common import schema_fields",
"from common import utils as common_utils",
"from models imp... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"from models import utils",
"from tests.functional import actions",
"from google.appengine.ext import db",
"class Model(db.Model):\n create_date = db.DateTime... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"\"\"\"Tests for the module to support users unsubscribing from notifications.\"\"\"",
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"import urlparse",
"from common import utils",
"from controllers import sites",
"from modules.unsubscribe import unsubscribe",
"from tests.functional import actions",
"fr... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for VFS features.\"\"\"",
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"import StringIO",
"import tempfile",
"from common import utils as common_utils",
"from models import vfs",
"from models import courses",
"from tests.functi... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for modules/certificate/.\"\"\"",
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"import actions",
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"from models import courses",
"from models import models",
"from models import student_work",
"from modules.certificate import certificate",
"from modules.ce... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
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"from models import config",
"from models import roles",
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"from modules.cours... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"import pprint",
"import urllib",
"import zlib",
"import actions",
"from common import utils as common_utils",
"from models import courses",
"... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
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"\"\"\"Tests for modules/admin. (See also test_classes.AdminAspectTest.\"\"\"",
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"from controllers import sites",
"from models import courses",
"from tests.functional import actions",
"from google.appengine.api import namespace_manager",
"class AdminDashboardT... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"import re",
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"from common import utils as common_utils",
"from controllers import sites",
"from controllers import utils",
"from models import config",
"from m... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"\"\"\"Tests for modules/usage_reporting/*\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import collections",
"import copy",
"import os",
"import time",
"import urlparse",
"from common import crypto",
"from common import utils as common_utils",
"from controllers import sites",
"fro... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"\"\"\"Tests for the rating widget.\"\"\"",
"__author__ = 'John Orr (jorr@google.com)'",
"import urllib",
"from controllers import utils",
"from common import crypto",
"from models import courses",
"from models import models",
"from models import transforms",
"from models.data_sources import utils a... |
# -*- coding: utf-8 -*-
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless requir... | [
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"\"\"\"Tests related to content translation to multiple languages.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"import json",
"import os",
"import yaml",
"import appengine_config",
"from common import schema_fields",
"from common import xcontent",
"from models import courses",
"f... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for the skill mapping module.\"\"\"",
"__author__ = 'John Orr (jorr@google.com)'",
"import cgi",
"import json",
"import cStringIO",
"import StringIO",
"import time",
"import urllib",
"import zipfile",
"from babel.messages import pofile",
"from networkx import DiGraph",
"from xml.e... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for modules/i18n_dashboard/jobs.py.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n]",
"import os",
"import zipfile",
"from modules.i18n_dashboard import jobs",
"from tests.functional import modules_i18n_dashboard",
"from tools.etl import etl",
"from tools.etl i... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for the math module.\"\"\"",
"__author__ = ['Gun Pinyo (gunpinyo@google.com)',\n 'Neema Kotonya (neemak@google.com)']",
"from models import courses",
"from tests.functional import actions",
"COURSE_NAME = 'math_tag_test_course'",
"ADMIN_EMAIL = 'user@test.com'",
"MATHJAX_SCRIPT... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"A collection of actions for testing Course Builder pages.\"\"\"",
"import cgi",
"import functools",
"import logging",
"import os",
"import re",
"import urllib",
"from xml.etree import cElementTree",
"import html5lib",
"import appengine_config",
"from controllers import sites",
"from con... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for models/jobs.py.\"\"\"",
"__author__ = [\n 'mgainer@google.com (Mike Gainer)',\n]",
"from common.utils import Namespace",
"from models import jobs",
"from models import transforms",
"from tests.functional import actions",
"from google.appengine.ext import db",
"TEST_NAMES... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Verify operation of custom tags from core_tags module.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import os",
"import StringIO",
"import appengine_config",
"from controllers import sites",
"from models import config",
"from models import courses",
"from models import models",... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests verifying progress in units.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import re",
"from common import crypto",
"from common.utils import Namespace",
"from controllers import utils",
"from models import config",
"from models import courses",
"from models import models"... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Tests for modules/search/.\"\"\"",
"__author__ = 'Ellis Michael (emichael@google.com)'",
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"import logging",
"import re",
"import urllib",
"import actions",
"from common import utils as common_utils",
"from controllers import sites",
"from models import courses",
"from mo... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"\"\"\"Functional tests for modules/upload/upload.py.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n]",
"import os",
"from controllers import utils",
"from models import models",
"from models import student_work",
"from modules.upload import upload",
"from tests.functional import acti... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"import os",
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"from common import crypto",
"from models import courses",
"from tests.functional import actions",
"from internal.experimental.autoregister... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"import datetime",
"import itertools",
"import json",
"from StringIO import StringIO",
"import types",
"import urlparse",
"from xml.etree import ElementTree",
... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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"__author__ = 'Mike Gainer (mgainer@google.com)'",
"SIMPLE_TYPES = (int, long, float, bool, dict, basestring, list)"
] |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0542,
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0,
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0,
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0,
0,
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... | [
"\"\"\"Models and helper utilities for the review workflow.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n 'sll@google.com (Sean Lip)',\n]",
"import entities",
"import transforms",
"import models",
"from google.appengine.ext import db",
"class KeyProperty(db.StringProperty):\n \"\... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
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0,
0,
0,
0,
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777,
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0,
0,
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3,
0
],
[
1,
0,
0.0681,
0.0036,
0,
0.66,... | [
"\"\"\"Common classes and methods for managing persistent entities.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"from counters import PerfCounter",
"import transforms",
"from google.appengine.ext import db",
"DB_QUERY = PerfCounter(\n 'gcb-models-db-query',\n 'A number of times a q... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.1786,
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0,
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0,
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[
2,
0,
0.25,
0.0357,
0,
0.66,
... | [
"\"\"\"Manages performance counters of an application and/or its modules.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"def incr_counter_global_value(unused_name, unused_delta):\n \"\"\"Hook method for global aggregation.\"\"\"\n pass",
" \"\"\"Hook method for global aggregation.\"\"... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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777,
1,
0,
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],
[
1,
0,
0.0792,
0.0042,
0,
0.66,... | [
"\"\"\"Module providing visualizations display as HTML/JS.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"from common import safe_dom",
"from controllers import utils",
"from models import data_sources",
"from models import jobs",
"from models import transforms",
"from models.analytics im... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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777,
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0,
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0
],
[
1,
0,
0.25,
0.0132,
0,
0.66,
... | [
"\"\"\"Utility functions common to analytics module.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import os",
"import sys",
"import appengine_config",
"def _generators_for_visualizations(visualizations):\n ret = set()\n for visualization in visualizations:\n ret.update(visualiz... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
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0,
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0,
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777,
1,
0,
0,
0,
0,
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],
[
1,
0,
0.0798,
0.0042,
0,
0.66,
... | [
"\"\"\"Module providing public analytics interfaces.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import os",
"import re",
"import jinja2",
"import appengine_config",
"from controllers import sites",
"from controllers import utils as controllers_utils",
"from models.analytics import d... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.1327,
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0,
0.66,
0,
0,
1,
0,
0,
0,
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0,
0
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14,
0,
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777,
1,
0,
0,
0,
0,
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],
[
1,
0,
0.1681,
0.0088,
0,
0.66,... | [
"\"\"\"Messages used in the models.\"\"\"",
"__author__ = 'Boris Roussev (borislavr@google.com)'",
"from common import safe_dom",
"PEER_MATCHER_NAME = 'Peer'",
"ASSESSMENT_CONTENT_DESCRIPTION = safe_dom.assemble_text_message(\"\"\"\nAssessment questions and answers (JavaScript format).\n\"\"\", 'https://cod... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.3191,
0.0213,
0,
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0,
0,
0,
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0,
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],
[
1,
0,
0.4255,
0.0213,
0,
0.66,
... | [
"\"\"\"Utility for Sending notifications.\"\"\"",
"__author__ = 'Abhinav Khandelwal (abhinavk@google.com)'",
"from google.appengine.api import mail",
"from google.appengine.api import users",
"class EmailManager(object):\n \"\"\"Notification Manager. Sends emails out.\"\"\"\n\n def __init__(self, cour... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
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[
1,
0,
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0,
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... | [
"\"\"\"Manages mapping of users to roles and roles to privileges.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"import collections",
"import config",
"from common import utils",
"from models import MemcacheManager",
"from models import RoleDAO",
"from google.appengine.api import users... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
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[
1,
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0,
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... | [
"\"\"\"Set of converters between db models, Python and JSON dictionaries, etc.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import base64",
"import datetime",
"import entities",
"import transforms_constants",
"from common import schema_fields",
"from google.appengine.api import datastor... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
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],
[
1,
0,
0.0059,
0.0003,
0,
0.66,... | [
"\"\"\"Common classes and methods for managing Courses.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"import collections",
"import copy",
"from datetime import datetime",
"import logging",
"import os",
"import pickle",
"import re",
"import sys",
"import threading",
"import con... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
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[
1,
0,
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0.0026,
0,
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... | [
"\"\"\"Manages dynamic properties of an application and/or its modules.\n\nAn application must explicitly declare properties and provide a type, doc string\nand default value for each. The default property values are overridden by\nthe new values found in the environment variable with the same name. Those are\nfurt... |
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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1,
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0
],
[
1,
0,
0.0174,
0.0009,
0,
0.66,... | [
"\"\"\"Implement resource abstraction for Course-level items.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import cgi",
"import yaml",
"import models",
"import courses",
"import messages",
"from common import resource",
"from common import safe_dom",
"from common import schema_field... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
0,
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14,
0,
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777,
1,
0,
0,
0,
0,
3,
0
],
[
1,
0,
0.1919,
0.0101,
0,
0.66,
... | [
"\"\"\"Classes supporting dynamically registering custom unit types.\"\"\"",
"__author__ = 'Abhinav Khandelwal (abhinavk@google.com)'",
"import logging",
"class UnitTypeRegistry(object):\n \"\"\"A registry that holds all custom modules.\"\"\"\n\n registered_unit_types = {}\n\n @classmethod\n def r... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.1145,
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0,
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0,
0,
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0,
0,
0,
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[
3,
0,
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0.0382,
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0.66,
0.2,
451,
0,
1,
0,
0,
186,
0,
1
],
[
8,
1,
0.145,
0.0076,
1,
0.07,
... | [
"\"\"\"Core service interface definitions.\"\"\"",
"class Service(object):\n \"\"\"Abstract base service interface.\"\"\"\n\n def enabled(self):\n raise NotImplementedError()",
" \"\"\"Abstract base service interface.\"\"\"",
" def enabled(self):\n raise NotImplementedError()",
"cl... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
0,
0,
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14,
0,
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777,
0,
0,
0,
0,
0,
5,
0
],
[
1,
0,
0.1287,
0.0058,
0,
0.66,
... | [
"\"\"\"Helper functions to work with various models.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n 'sll@google.com (Sean Lip)',\n]",
"import logging",
"import transforms",
"_LOG = logging.getLogger('models.utils')",
"logging.basicConfig()",
"class Error(Exception):\n \"\"\"Base e... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
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0,
0,
0,
0,
0,
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0,
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777,
1,
0,
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0,
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],
[
1,
0,
0.1597,
0.0084,
0,
0.66,
... | [
"\"\"\"Models and helper utilities for the review workflow.\"\"\"",
"__author__ = 'mgainer@google.com (Mike Gainer)'",
"from common import utils as common_utils",
"from controllers import utils",
"import models",
"from models import transforms",
"from google.appengine.api import users",
"PARAMETER_LAB... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0212,
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0,
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0,
0,
1,
0,
0,
0,
0,
0,
0
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14,
0,
0.024,
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0,
0.66,
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777,
1,
0,
0,
0,
0,
3,
0
],
[
1,
0,
0.0283,
0.0014,
0,
0.66,
... | [
"\"\"\"Common classes and methods for processing text content.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"from pyparsing import alphas",
"from pyparsing import Combine",
"from pyparsing import Each",
"from pyparsing import Group",
"from pyparsing import Literal",
"from pyparsing im... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.1667,
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0,
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0,
0,
1,
0,
0,
0,
0,
0,
0
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[
14,
0,
0.1889,
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0,
0.66,
0.3333,
777,
1,
0,
0,
0,
0,
3,
0
],
[
3,
0,
0.5111,
0.5889,
0,
0.66,... | [
"\"\"\"Classes supporting dynamically registering custom modules.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"class Module(object):\n \"\"\"A class that holds module information.\"\"\"\n\n def __init__(\n self, name, desc, global_routes, namespaced_routes,\n notify_module_... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0385,
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0,
0.66,
0,
0,
1,
0,
0,
0,
0,
0,
0
],
[
14,
0,
0.0436,
0.0026,
0,
0.66,
0.0556,
777,
1,
0,
0,
0,
0,
3,
0
],
[
1,
0,
0.0487,
0.0026,
0,
0.66,... | [
"\"\"\"Analytics for extracting facts based on StudentAnswerEntity entries.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import collections",
"import logging",
"import courses",
"from common import tags",
"import models",
"from tools import verify",
"QuestionAnswerInfo = collections.n... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0661,
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0,
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0,
0,
1,
0,
0,
0,
0,
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0
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[
14,
0,
0.0793,
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0.1111,
777,
0,
0,
0,
0,
0,
5,
0
],
[
1,
0,
0.0925,
0.0044,
0,
0.66,... | [
"\"\"\"Review processor that is used for managing human-reviewed assessments.\"\"\"",
"__author__ = [\n 'sll@google.com (Sean Lip)',\n]",
"import entities",
"import student_work",
"import transforms",
"from modules.review import domain",
"PEER_MATCHER = 'peer'",
"ALLOWED_MATCHERS = [PEER_MATCHER]",... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
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[
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0.0176,
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0,
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3,
0
],
[
1,
0,
0.0197,
0.001,
0,
0.66,
... | [
"\"\"\"Virtual file system for managing files locally or in the cloud.\"\"\"",
"__author__ = 'Pavel Simakov (psimakov@google.com)'",
"import datetime",
"import os",
"import re",
"import sys",
"import threading",
"import unittest",
"from config import ConfigProperty",
"from counters import PerfCoun... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
0,
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0,
0,
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0,
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[
1,
0,
0.0146,
0.0008,
0,
0.66,... | [
"\"\"\"Student progress trackers.\"\"\"",
"__author__ = 'Sean Lip (sll@google.com)'",
"import datetime",
"import logging",
"import os",
"from collections import defaultdict",
"import courses",
"import transforms",
"from common import utils",
"from models import QuestionDAO",
"from models import ... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.1786,
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0,
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0,
0,
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0,
0,
0,
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0,
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0,
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[
1,
0,
0.2262,
0.0119,
0,
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... | [
"\"\"\"Registration for data sources.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import logging",
"from models import jobs",
"from models.data_sources import base_types",
"class _Registry(object):\n\n _data_source_classes = []\n _data_source_names = {}\n\n @classmethod\n def r... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
0,
0,
0,
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14,
0,
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777,
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0,
0,
0,
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0
],
[
1,
0,
0.0507,
0.0027,
0,
0.66,
... | [
"\"\"\"Module providing base types for analytics.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import re",
"class _DataSource(object):\n \"\"\"Common base class for all kinds of data sources.\"\"\"\n\n @staticmethod\n def required_generators():\n \"\"\"Tell what long-running job... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
0,
0,
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14,
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0,
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],
[
1,
0,
0.0931,
0.0049,
0,
0.66,
... | [
"\"\"\"Generic webapp2 handler for REST data sources.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"from common import catch_and_log",
"from common import crypto",
"from controllers import utils",
"from models import roles",
"from models import transforms",
"from models.data_sources impo... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
0,
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14,
0,
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777,
1,
0,
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],
[
1,
0,
0.4043,
0.0213,
0,
0.66,
... | [
"\"\"\"Utility functions common to data sources module.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"from models import jobs",
"DATA_SOURCE_ACCESS_XSRF_ACTION = 'data_source_access'",
"def generate_data_source_token(xsrf):\n \"\"\"Generate an XSRF token used to access data source, and prot... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
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14,
0,
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777,
1,
0,
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0,
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0
],
[
1,
0,
0.0597,
0.0031,
0,
0.66,... | [
"\"\"\"Access AppEngine DB tables via AbstractRestDataSource interface.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"import copy",
"import functools",
"import re",
"from common import crypto",
"from common.utils import Namespace",
"from models import entity_transforms",
"from models i... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
0,
0,
0,
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14,
0,
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777,
1,
0,
0,
0,
0,
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0
],
[
1,
0,
0.2676,
0.0141,
0,
0.66,... | [
"\"\"\"Module providing data source contents via REST interface.\"\"\"",
"__author__ = 'Mike Gainer (mgainer@google.com)'",
"from models.data_sources import base_types",
"from models.data_sources import source_handler",
"from models.data_sources import paginated_table",
"from models.data_sources import re... |
# Copyright 2014 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
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[
1,
0,
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739,
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1,
0,
0,
739,
0,
0
],
[
1,
0,
0.2432,
0.0135,
0,
0.66,
... | [
"\"\"\"ETL testing utilities.\"\"\"",
"import copy",
"import cStringIO",
"import logging",
"import os",
"from controllers import sites",
"from tests.functional import actions",
"from tools.etl import etl",
"from tools.etl import remote",
"class EtlTestBase(actions.TestBase):\n # Allow access to... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
0,
0,
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14,
0,
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777,
0,
0,
0,
0,
0,
5,
0
],
[
1,
0,
0.1448,
0.0069,
0,
0.66,... | [
"\"\"\"Remote environment manager for extract-transform-load utilities.\"\"\"",
"__author__ = [\n 'johncox@google.com',\n]",
"import os",
"import sys",
"import appengine_config",
"SERVER_SOFTWARE = 'Production Emulation'",
"if appengine_config.PRODUCTION_MODE:\n sys.exit('Running etl/tools/remote.... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
0,
0,
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14,
0,
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777,
0,
0,
0,
0,
0,
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0
],
[
1,
0,
0.0938,
0.0045,
0,
0.66,
... | [
"\"\"\"Libraries for writing extract-transform-load scripts.\"\"\"",
"__author__ = [\n 'johncox@google.com',\n]",
"import argparse",
"import datetime",
"import time",
"from controllers import sites",
"from models import courses",
"def get_context(course_url_prefix):\n \"\"\"Gets requested applic... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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14,
0,
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0,
0,
0,
0,
0,
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0
],
[
1,
0,
0.0416,
0.002,
0,
0.66,
... | [
"\"\"\"Example of custom MapReduce jobs.\"\"\"",
"__author__ = [\n 'juliaoh@google.com (Julia Oh)',\n]",
"import sys",
"import mapreduce",
"from models import transforms",
"_POS_LIMIT_SECONDS = 60 * 8",
"_SUM = 'sum'",
"class CsvStudentEventAccumulationPipeline(mapreduce.CsvGenerator):\n \"\"\"E... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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0,
0,
1,
0,
0,
0,
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14,
0,
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777,
0,
0,
0,
0,
0,
5,
0
],
[
1,
0,
0.0494,
0.0022,
0,
0.66,
... | [
"\"\"\"MapReduce extensions for ETL.\"\"\"",
"__author__ = [\n 'johncox@google.com (John Cox)',\n 'juliaoh@google.com (Julia Oh)',\n]",
"import csv",
"import os",
"import sys",
"from xml.etree import ElementTree",
"import mrs",
"from models import transforms",
"from tools.etl import etl_lib",
... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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0,
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14,
0,
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0,
0,
0,
0,
5,
0
],
[
1,
0,
0.1656,
0.0061,
0,
0.66,... | [
"\"\"\"Examples of custom extract-transform-load jobs.\n\nCustom jobs are run via tools/etl/etl.py. You must do environment setup before\netl.py can be invoked; see its module docstring for details.\n\nSee tools/etl/etl_lib.py for documentation on writing Job subclasses.\n\"\"\"",
"__author__ = [\n 'johncox@go... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
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14,
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0,
0,
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0
],
[
1,
0,
0.1226,
0.0065,
0,
0.66,... | [
"\"\"\"Allows export of Lessons and Units to other systems.\"\"\"",
"__author__ = 'psimakov@google.com (Pavel Simakov)'",
"from datetime import datetime",
"import os",
"import verify",
"RELEASE_TAG = '1.0'",
"def echo(unused_x):\n pass",
"JS_GCB_REGEX = \"\"\"\nfunction gcb_regex(base, modifiers) {... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0655,
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0,
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0,
0,
0,
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[
14,
0,
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1,
0,
0,
0,
0,
3,
0
],
[
1,
0,
0.083,
0.0044,
0,
0.66,
... | [
"\"\"\"Classes and methods to manage all aspects of student assessments.\"\"\"",
"__author__ = 'pgbovine@google.com (Philip Guo)'",
"import datetime",
"import logging",
"from utils import BaseHandler",
"from utils import HUMAN_READABLE_DATETIME_FORMAT",
"from controllers import lessons",
"from models ... |
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0112,
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0,
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0,
0,
1,
0,
0,
0,
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0,
0
],
[
14,
0,
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0.0185,
777,
1,
0,
0,
0,
0,
3,
0
],
[
1,
0,
0.0142,
0.0007,
0,
0.66,... | [
"\"\"\"Handlers for generating various frontend pages.\"\"\"",
"__author__ = 'Saifu Angto (saifu@google.com)'",
"import copy",
"import datetime",
"import urllib",
"import urlparse",
"from utils import BaseHandler",
"from utils import BaseRESTHandler",
"from utils import CAN_PERSIST_ACTIVITY_EVENTS",... |
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or ... | [
[
8,
0,
0.0125,
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0,
1,
0,
0,
0,
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[
14,
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0,
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],
[
1,
0,
0.0158,
0.0008,
0,
0.66,... | [
"\"\"\"Handlers that are not directly related to course content.\"\"\"",
"__author__ = 'Saifu Angto (saifu@google.com)'",
"import datetime",
"import HTMLParser",
"import os",
"import re",
"import urllib",
"import urlparse",
"import jinja2",
"import sites",
"import webapp2",
"import appengine_c... |
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