191 lines
6.7 KiB
Python
191 lines
6.7 KiB
Python
import os
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import pathlib
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from json import dump, loads
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from datetime import datetime, timedelta
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from flask.json import jsonify
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from main import app
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from random import shuffle
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from werkzeug.utils import secure_filename
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def check_data_folder_exists():
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if not os.path.exists(app.config['DATA_FILE_DIRECTORY']):
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pathlib.Path(app.config['DATA_FILE_DIRECTORY']).mkdir(parents='True', exist_ok='True')
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def check_default_indicator():
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if not os.path.isfile(os.path.join(app.config['DATA_FILE_DIRECTORY'], '.default.txt')):
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open(os.path.join(app.config['DATA_FILE_DIRECTORY'], '.default.txt'),'w').close()
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def get_default_dataset():
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check_default_indicator()
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default_file_path = os.path.join(app.config['DATA_FILE_DIRECTORY'], '.default.txt')
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with open(default_file_path, 'r') as default_file:
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default = default_file.read()
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return default
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def check_json_format(file):
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if not '.' in file.filename:
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return False
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if not file.filename.rsplit('.', 1)[-1] == 'json':
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return False
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return True
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def validate_json_contents(file):
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file.stream.seek(0)
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data = loads(file.read())
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if not type(data) is dict:
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return False
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elif not all( key in data for key in ['meta', 'questions']):
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return False
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elif not type(data['meta']) is dict:
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return False
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elif not type(data['questions']) is list:
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return False
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return True
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def store_data_file(file, default:bool=None):
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from admin.views import get_id_from_cookie
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check_default_indicator()
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timestamp = datetime.utcnow()
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filename = '.'.join([timestamp.strftime('%Y%m%d%H%M%S'),'json'])
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filename = secure_filename(filename)
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file_path = os.path.join(app.config['DATA_FILE_DIRECTORY'], filename)
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file.stream.seek(0)
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data = loads(file.read())
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data['meta']['timestamp'] = timestamp.strftime('%Y-%m-%d %H%M%S')
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data['meta']['author'] = get_id_from_cookie()
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data['meta']['tests'] = []
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with open(file_path, 'w') as _file:
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dump(data, _file, indent=2)
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if default:
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with open(os.path.join(app.config['DATA_FILE_DIRECTORY'], '.default.txt'), 'w') as _file:
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_file.write(filename)
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return filename
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def randomise_list(list:list):
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_list = list.copy()
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shuffle(_list)
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return(_list)
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def generate_questions(dataset:dict):
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questions_list = dataset['questions']
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output = []
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for block in randomise_list(questions_list):
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if block['type'] == 'question':
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question = {
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'type': 'question',
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'q_no': block['q_no'],
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'question_header': '',
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'text': block['text']
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}
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if block['q_type'] == 'Multiple Choice':
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question['options'] = randomise_list(block['options'])
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else:
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question['options'] = block['options'].copy()
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output.append(question)
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if block['type'] == 'block':
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for key, _question in enumerate(randomise_list(block['questions'])):
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question = {
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'type': 'block',
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'q_no': _question['q_no'],
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'question_header': block['question_header'] if 'question_header' in block else '',
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'block_length': len(block['questions']),
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'block_q_no': key,
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'text': _question['text']
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}
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if _question['q_type'] == 'Multiple Choice':
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question['options'] = randomise_list(_question['options'])
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else:
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question['options'] = _question['options'].copy()
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output.append(question)
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return output
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def evaluate_answers(dataset: dict, answers: dict):
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score = 0
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max = 0
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tags = {}
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for block in dataset['questions']:
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if block['type'] == 'question':
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max += 1
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q_no = block['q_no']
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if str(q_no) in answers:
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correct = block['correct']
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correct_answer = block['options'][correct]
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if answers[str(q_no)] == correct_answer:
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score += 1
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for tag in block['tags']:
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if tag not in tags:
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tags[tag] = {
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'scored': 1,
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'max': 1
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}
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else:
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tags[tag]['scored'] += 1
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tags[tag]['max'] += 1
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else:
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for tag in block['tags']:
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if tag not in tags:
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tags[tag] = {
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'scored': 0,
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'max': 1
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}
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else:
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tags[tag]['max'] += 1
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if block['type'] == 'block':
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for question in block['questions']:
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max += 1
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q_no = question['q_no']
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if str(q_no) in answers:
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correct = question['correct']
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correct_answer = question['options'][correct]
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if answers[str(q_no)] == correct_answer:
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score += 1
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for tag in question['tags']:
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if tag not in tags:
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tags[tag] = {
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'scored': 1,
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'max': 1
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}
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else:
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tags[tag]['scored'] += 1
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tags[tag]['max'] += 1
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else:
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for tag in question['tags']:
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if tag not in tags:
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tags[tag] = {
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'scored': 0,
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'max': 1
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}
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else:
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tags[tag]['max'] += 1
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grade = 'merit' if score/max >= .85 else 'pass' if score/max >= .70 else 'fail'
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return {
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'grade': grade,
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'tags': tags,
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'score': score,
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'max': max
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}
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def get_tags_list(dataset:dict):
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output = []
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blocks = dataset['questions']
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for block in blocks:
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if block['type'] == 'question':
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output = list(set(output) | set(block['tags']))
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if block['type'] == 'block':
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for question in block['questions']:
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output = list(set(output) | set(question['tags']))
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return output
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def get_time_options():
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time_options = [
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('none', 'None'),
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('60', '1 hour'),
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('90', '1 hour 30 minutes'),
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('120', '2 hours')
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]
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return time_options |