def post(self, node_id):
parser = reqparse.RequestParser()
parser.add_argument('answer', type=str)
parser.add_argument('question', type=int, location='args')
args = parser.parse_args()
question_id = args['question']
exam = Exam.get_or_none(Exam.node_id == node_id)
current_attempt = Attempt.get_or_none((Attempt.user == current_user.id)
& (Attempt.exam == exam))
with open(f"uploads/{exam.json_file}", "r") as json_file:
data = json.load(json_file)
if args['answer'] == data[question_id - 1]['answer']:
current_attempt.correct += 1
else:
current_attempt.incorrect += 1
user_answers = json.loads(current_attempt.answers)
user_answers[str(question_id)] = args['answer']
current_attempt.answers = json.dumps(user_answers)
current_attempt.save()
return user_answers
def get(self, node_id):
parser = reqparse.RequestParser()
parser.add_argument('question',
type=int,
location='args',
required=False)
args = parser.parse_args()
exam = Exam.get_or_none(Exam.node_id == node_id)
user_roles = [role.name for role in list(current_user.roles.select())]
if not bool(set(user_roles).intersection(set(exam.roles.split(','))))\
and not current_user.has_role("admin"):
return "You can't do this.", 403
attempt = Attempt.get_or_none((Attempt.user == current_user.id)
& (Attempt.exam == exam))
# Get a question
question_id = args.get('question')
if question_id is not None:
if attempt is None:
return "You have not started your attempt."
if attempt.times > exam.attempts:
return "Number of attempts exceeded."
if attempt.time_start < datetime.now() - timedelta(
minutes=exam.time):
return {"timeUp": True}
with open(f"uploads/{exam.json_file}", "r") as json_file:
data = json.load(json_file)
question = data[question_id - 1]
del question['answer']
if data.index(question) == (len(data) - 1):
question['last'] = True
return question
exam_dict = marshal(exam, exam_fields)
if attempt is not None:
exam_dict["attempts_left"] = exam.attempts - attempt.times
else:
exam_dict["attempts_left"] = exam.attempts
return exam_dict
def get(self, node_id):
exam = Exam.get_or_none(Exam.node_id == node_id)
if exam is None:
return '', 406
if exam.locked:
return "Locked.", 423
user_roles = [role.name for role in list(current_user.roles.select())]
if not bool(set(user_roles).intersection(set(exam.roles.split(','))))\
and not current_user.has_role("admin"):
return "You can't do this.", 403
last_attempt = Attempt.get_or_none((Attempt.user == current_user.id)
& (Attempt.exam == exam))
if last_attempt is None:
time_start = datetime.now()
attempt = Attempt(user=current_user.id,
exam=exam,
time_start=time_start)
attempt.save()
elif (last_attempt.time_start >
datetime.now() - timedelta(minutes=exam.time)):
return {
"message": "There's a valid attempt still going.",
"time_start": last_attempt.time_start.ctime()
}
else:
if last_attempt.times > exam.attempts:
return "Number of attempts exceeded."
last_attempt.correct = 0
last_attempt.incorrect = 0
time_start = datetime.now()
last_attempt.time_start = time_start
last_attempt.times += 1
last_attempt.answers = '{}'
last_attempt.save()
with open(f"uploads/{exam.json_file}", "r") as json_file:
data = json.load(json_file)
return {"time": exam.time, "max_questions": len(data)}
def get(self, node_id):
exam = Exam.get_or_none(Exam.node_id == node_id)
if exam is None:
return '', 406
current_attempt = Attempt.get((Attempt.user == current_user.id)
& (Attempt.exam == exam))
current_attempt.time_start -= timedelta(minutes=exam.time)
current_attempt.save()
return "Finished."
def get(self, node_id):
exam = Exam.get_or_none(Exam.node_id == node_id)
submitters = list(Attempt.select())
if exam is None:
return '', 406
with open(f"uploads/{exam.json_file}", "r") as json_file:
data = json.load(json_file)
return {
"submitters": marshal(submitters, result_fields),
"max_questions": len(data)
}
