def create_practice_sessions(collection_folders, collection_exercises):
"""
Create a randomized practice session for all folders and corresponding exercises present in the DB.
:param collection_folders: The MongoDB 'folders' collection reference.
:param collection_exercises: The MongoDB 'exercises' collection reference.
:return:
"""
all_folders = Folder.get_all_folders(collection_folders)
for folder in all_folders:
folder_exercises = folder['exercises']
for each_exercise_id in folder_exercises:
# print "Adding a practice session to %s" % each_exercise_id
today = datetime.utcnow()
for i in range(10, -1, -1):
practice_session_date = today - timedelta(i)
updated_exercise = Exercise.add_practice_session(collection_exercises,
each_exercise_id,
practice_session_date)
ex_latest_session = updated_exercise['history'][-1]
folder = Folder.update_folder_with_practice_session(collection_folders,
folder,
ex_latest_session,
updated_exercise['lastPracticeTime'])
