+ if not self.answers:
+ return None
+ answer = json.loads(self.answers)[exercise_id]['closed_part']
+ t = exercise['type']
+ if t == 'edumed_uporzadkuj':
+ return exercise['points'] if map(int, answer) == exercise['answer'] else 0
+ if t == 'edumed_przyporzadkuj':
+ toret = 0
+ for bucket_id, items in answer.items():
+ for item_id in items:
+ is_corect = False
+ if exercise.get('answer_mode', None) == 'possible_buckets_for_item':
+ is_correct = int(bucket_id) in exercise['answer'].get(item_id)
+ else:
+ is_correct = int(item_id) in exercise['answer'].get(bucket_id, [])
+ if is_correct:
+ toret += exercise['points_per_hit']
+ return toret
+ if t == 'edumed_wybor':
+ if len(exercise['answer']) == 1:
+ if len(answer) and int(answer[0]) == exercise['answer'][0]:
+ return exercise['points']
+ else:
+ return 0
+ else:
+ toret = 0
+ if exercise.get('answer_mode', None) == 'all_or_nothing':
+ toret = exercise['points'] if map(int, answer) == exercise['answer'] else 0
+ else:
+ for answer_id in map(int, answer):
+ if answer_id in exercise['answer']:
+ toret += exercise['points_per_hit']
+ return toret
+ if t == 'edumed_prawdafalsz':
+ toret = 0
+ for idx, statement in enumerate(exercise['statements']):
+ if answer[idx] == 'true':
+ given = True
+ elif answer[idx] == 'false':
+ given = False
+ else:
+ given = None
+ if given == statement[1]:
+ toret += exercise['points_per_hit']
+ return toret
+ raise NotImplementedError