def post(self):
data = request.get_json()
quiz_id = data['url'].split('/')[-1] # split "/quiz/10" by "/" and get "10".
answers_correct_row = [quiz for quiz in Choices.select(Choices.id).dicts().join(QuizQuestions).group_by()
.where((Choices.is_correct == True) & (QuizQuestions.quiz_id == quiz_id))]
answers_correct_db = {id_['id'] for id_ in answers_correct_row}
answers_user = {int(v) for k, v in data.items() if k != 'url'}
correct_answers_count = len(answers_correct_db) - len(answers_user.difference(answers_correct_db))
percent = (100 * correct_answers_count)//len(answers_user)
return jsonify({'score': percent})
