def check(request, q_id, 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, question_paper=q_paper) if not user.is_authenticated() or paper.end_time < datetime.datetime.now(): return my_redirect('/exam/login/') question = get_object_or_404(Question, pk=q_id) snippet_code = request.POST.get('snippet') skip = request.POST.get('skip', None) success_msg = False success = True if skip is not None: next_q = paper.skip() return show_question(request, next_q, 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') else: user_code = request.POST.get('answer') user_answer = snippet_code + "\n" + user_code 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. correct, success, err_msg = validate_answer(user, user_answer, question) if correct: new_answer.correct = correct new_answer.marks = question.points new_answer.error = err_msg success_msg = True else: new_answer.error = err_msg new_answer.save() time_left = paper.time_left() if not success: # Should only happen for non-mcq questions. if time_left == 0: reason = 'Your time is up!' return complete(request, reason, questionpaper_id) if not paper.question_paper.quiz.active: reason = 'The quiz has been deactivated!' return complete(request, reason, questionpaper_id) context = {'question': question, 'error_message': err_msg, 'paper': paper, 'last_attempt': user_code, 'quiz_name': paper.question_paper.quiz.description, 'time_left': time_left} ci = RequestContext(request) return my_render_to_response('exam/question.html', context, context_instance=ci) else: if time_left <= 0: reason = 'Your time is up!' return complete(request, reason, questionpaper_id) else: next_q = paper.completed_question(question.id) return show_question(request, next_q, questionpaper_id, success_msg)