def _save_skipped_answer(old_skipped, user_answer, paper, question):
"""
Saves the answer on skip. Only the code questions are saved.
Snippet is not saved with the answer.
"""
if old_skipped:
skipped_answer = old_skipped[0]
skipped_answer.answer = user_answer
skipped_answer.save()
else:
skipped_answer = Answer(question=question, answer=user_answer, correct=False, skipped=True)
skipped_answer.save()
paper.answers.add(skipped_answer)
def check(request, q_id, attempt_num=None, questionpaper_id=None):
"""Checks the answers of the user for particular question"""
user = request.user
q_paper = QuestionPaper.objects.get(id=questionpaper_id)
paper = AnswerPaper.objects.get(user=request.user, attempt_number=attempt_num, question_paper=q_paper)
if q_id in paper.questions_answered:
next_q = paper.skip(q_id)
return show_question(request, next_q, attempt_num, questionpaper_id)
if not user.is_authenticated() or paper.end_time < datetime.datetime.now():
return redirect("/home/")
question = get_object_or_404(Question, pk=q_id)
test_cases = TestCase.objects.filter(question=question)
snippet_code = request.POST.get("snippet")
user_code = request.POST.get("answer")
skip = request.POST.get("skip", None)
success_msg = False
success = True
if skip is not None:
if question.type == "code":
old_skipped = paper.answers.filter(question=question, skipped=True)
_save_skipped_answer(old_skipped, user_code, paper, question)
next_q = paper.skip(q_id)
return show_question(request, next_q, attempt_num, questionpaper_id)
# Add the answer submitted, regardless of it being correct or not.
if question.type == "mcq":
user_answer = request.POST.get("answer")
elif question.type == "mcc":
user_answer = request.POST.getlist("answer")
new_answer = Answer(question=question, answer=user_answer, correct=False)
new_answer.save()
paper.answers.add(new_answer)
# If we were not skipped, we were asked to check. For any non-mcq
# questions, we obtain the results via XML-RPC with the code executed
# safely in a separate process (the code_server.py) running as nobody.
if not question.type == "upload":
json_data = question.consolidate_answer_data(test_cases, user_answer) if question.type == "code" else None
correct, result = validate_answer(user, user_answer, question, json_data)
if correct:
new_answer.correct = correct
new_answer.marks = question.points
new_answer.error = result.get("error")
success_msg = True
else:
new_answer.error = result.get("error")
new_answer.save()
time_left = paper.time_left()
if not result.get("success"): # Should only happen for non-mcq questions.
if time_left == 0:
reason = "Your time is up!"
return complete(request, reason, attempt_num, questionpaper_id)
if not paper.question_paper.quiz.active:
reason = "The quiz has been deactivated!"
return complete(request, reason, attempt_num, questionpaper_id)
if not paper.question_paper.quiz.active:
reason = "The quiz has been deactivated!"
return complete(request, reason, attempt_num, questionpaper_id)
questions, to_attempt, submitted = get_questions(paper)
old_answer = paper.answers.filter(question=question, skipped=True)
if old_answer:
old_answer[0].answer = user_code
old_answer[0].save()
context = {
"question": question,
"error_message": result.get("error"),
"paper": paper,
"last_attempt": user_code,
"quiz_name": paper.question_paper.quiz.description,
"time_left": time_left,
"questions": questions,
"to_attempt": to_attempt,
"submitted": submitted,
}
ci = RequestContext(request)
return my_render_to_response("yaksh/question.html", context, context_instance=ci)
else:
if time_left <= 0:
reason = "Your time is up!"
return complete(request, reason, attempt_num, questionpaper_id)
# Display the same question if user_answer is None
elif not user_answer:
msg = "Please submit a valid option or code"
time_left = paper.time_left()
questions, to_attempt, submitted = get_questions(paper)
context = {
"question": question,
"error_message": msg,
"paper": paper,
"quiz_name": paper.question_paper.quiz.description,
"time_left": time_left,
"questions": questions,
"to_attempt": to_attempt,
"submitted": submitted,
}
ci = RequestContext(request)
return my_render_to_response("yaksh/question.html", context, context_instance=ci)
else:
next_q = paper.completed_question(question.id)
return show_question(request, next_q, attempt_num, questionpaper_id, success_msg)
