diff options
Diffstat (limited to 'testapp/exam/views.py')
| -rw-r--r-- | testapp/exam/views.py | 138 |
1 files changed, 80 insertions, 58 deletions
diff --git a/testapp/exam/views.py b/testapp/exam/views.py index 60dc01d..8fde7a7 100644 --- a/testapp/exam/views.py +++ b/testapp/exam/views.py @@ -22,6 +22,7 @@ from testapp.exam.forms import UserRegisterForm, UserLoginForm, QuizForm,\ from testapp.exam.xmlrpc_clients import code_server from settings import URL_ROOT + # The directory where user data can be saved. OUTPUT_DIR = abspath(join(dirname(__file__), 'output')) @@ -138,11 +139,10 @@ def quizlist_user(request): user = request.user avail_quizzes = list(QuestionPaper.objects.filter(quiz__active=True)) user_answerpapers = AnswerPaper.objects.filter(user=user) - quizzes_taken = [] + quizzes_taken = user_answerpapers pre_requisites = [] context = {} - if 'cannot_attempt' in request.GET: context['cannot_attempt'] = True @@ -152,13 +152,6 @@ def quizlist_user(request): context['quizzes_taken'] = None return my_render_to_response("exam/quizzes_user.html", context) - for answer_paper in user_answerpapers: - for quiz in avail_quizzes: - if answer_paper.question_paper.id == quiz.id and \ - answer_paper.end_time != answer_paper.start_time: - avail_quizzes.remove(quiz) - quizzes_taken.append(answer_paper) - context['quizzes'] = avail_quizzes context['user'] = user context['quizzes_taken'] = quizzes_taken @@ -170,27 +163,45 @@ def intro(request, questionpaper_id): user = request.user ci = RequestContext(request) quest_paper = QuestionPaper.objects.get(id=questionpaper_id) + attempt_number = quest_paper.quiz.attempts_allowed + time_lag = quest_paper.quiz.time_between_attempts + if quest_paper.quiz.prerequisite: try: - pre_quest = QuestionPaper.objects.get(quiz=quest_paper.quiz.prerequisite) - answer_paper = AnswerPaper.objects.get( - question_paper=pre_quest, - user=user) - if answer_paper.passed: - context = {'user': user, 'paper_id': questionpaper_id} - return my_render_to_response('exam/intro.html', context, - context_instance=ci) - else: - context = {'user': user, 'cannot_attempt':True} + pre_quest = QuestionPaper.objects.get( + quiz=quest_paper.quiz.prerequisite) + answer_papers = AnswerPaper.objects.filter( + question_paper=pre_quest, user=user) + answer_papers_failed = AnswerPaper.objects.filter( + question_paper=pre_quest, user=user, passed=False) + if answer_papers.count() == answer_papers_failed.count(): + context = {'user': user, 'cannot_attempt': True} return my_redirect("/exam/quizzes/?cannot_attempt=True") - except: - context = {'user': user, 'cannot_attempt':True} + context = {'user': user, 'cannot_attempt': True} return my_redirect("/exam/quizzes/?cannot_attempt=True") - context = {'user': user, 'paper_id': questionpaper_id} - ci = RequestContext(request) - return my_render_to_response('exam/intro.html', context, - context_instance=ci) + + attempted_papers = AnswerPaper.objects.filter(question_paper=quest_paper, + user=user) + already_attempted = attempted_papers.count() + if already_attempted == 0: + context = {'user': user, 'paper_id': questionpaper_id,\ + 'attempt_no': already_attempted + 1} + return my_render_to_response('exam/intro.html', context, + context_instance=ci) + if already_attempted < attempt_number: + previous_attempt_day = attempted_papers[already_attempted-1].start_time + today = datetime.datetime.today() + days_after_attempt = (today - previous_attempt_day).days + if days_after_attempt >= time_lag: + context = {'user': user, 'paper_id': questionpaper_id,\ + 'attempt_no': already_attempted + 1} + return my_render_to_response('exam/intro.html', context, + context_instance=ci) + else: + return my_redirect("/exam/quizzes/") + else: + return my_redirect("/exam/quizzes/") def results_user(request): @@ -367,6 +378,8 @@ def add_quiz(request, quiz_id=None): d.pass_criteria = form['pass_criteria'].data d.language = form['language'].data d.prerequisite_id = form['prerequisite'].data + d.attempts_allowed = form['attempts_allowed'].data + d.time_between_attempts = form['time_between_attempts'].data d.save() quiz = Quiz.objects.get(id=quiz_id) return my_redirect("/exam/manage/showquiz") @@ -389,7 +402,9 @@ def add_quiz(request, quiz_id=None): form.initial['active'] = d.active form.initial['pass_criteria'] = d.pass_criteria form.initial['language'] = d.language - form.initial['prerequisite'] = d.prerequisite_id + form.initial['prerequisite'] = d.prerequisite_id + form.initial['attempts_allowed'] = d.attempts_allowed + form.initial['time_between_attempts'] = d.time_between_attempts return my_render_to_response('exam/add_quiz.html', {'form': form}, context_instance=ci) @@ -607,10 +622,11 @@ rights/permissions and log in.""" users_failed = AnswerPaper.objects.filter(question_paper=paper, passed=False).count() temp = paper, answer_papers, users_passed, users_failed users_per_paper.append(temp) - context = {'user': user, 'users_per_paper':users_per_paper} + context = {'user': user, 'users_per_paper': users_per_paper} return my_render_to_response('manage.html', context) return my_redirect('/exam/login/') + def user_login(request): """Take the credentials of the user and log the user in.""" @@ -640,7 +656,7 @@ def user_login(request): context_instance=ci) -def start(request, questionpaper_id=None): +def start(request, attempt_no=None, questionpaper_id=None): """Check the user cedentials and if any quiz is available, start the exam.""" user = request.user @@ -653,13 +669,13 @@ def start(request, questionpaper_id=None): except QuestionPaper.DoesNotExist: msg = 'Quiz not found, please contact your '\ 'instructor/administrator. Please login again thereafter.' - return complete(request, msg, questionpaper_id) + return complete(request, msg, attempt_no, questionpaper_id) try: old_paper = AnswerPaper.objects.get( - question_paper=questionpaper, user=user) + question_paper=questionpaper, user=user, attempt_number=attempt_no) q = old_paper.current_question() - return show_question(request, q, questionpaper_id) + return show_question(request, q, attempt_no, questionpaper_id) except AnswerPaper.DoesNotExist: ip = request.META['REMOTE_ADDR'] key = gen_key(10) @@ -669,13 +685,13 @@ def start(request, questionpaper_id=None): msg = 'You do not have a profile and cannot take the quiz!' raise Http404(msg) - new_paper = questionpaper.make_answerpaper(user, ip,) + new_paper = questionpaper.make_answerpaper(user, ip, attempt_no) # Make user directory. user_dir = get_user_dir(user) - return start(request, questionpaper_id) + return start(request, attempt_no, questionpaper_id) -def question(request, q_id, questionpaper_id, success_msg=None): +def question(request, q_id, attempt_no, questionpaper_id, success_msg=None): """Check the credentials of the user and start the exam.""" user = request.user @@ -685,12 +701,15 @@ def question(request, q_id, questionpaper_id, success_msg=None): try: q_paper = QuestionPaper.objects.get(id=questionpaper_id) paper = AnswerPaper.objects.get( - user=request.user, question_paper=q_paper) + user=request.user, attempt_number=attempt_no, question_paper=q_paper) except AnswerPaper.DoesNotExist: return my_redirect('/exam/start/') if not paper.question_paper.quiz.active: reason = 'The quiz has been deactivated!' return complete(request, reason, questionpaper_id) + elif paper.end_time < datetime.datetime.now(): + reason = 'You have already attempted the quiz' + return complete(request, reason, questionpaper_id) time_left = paper.time_left() if time_left == 0: return complete(request, reason='Your time is up!') @@ -709,31 +728,32 @@ def question(request, q_id, questionpaper_id, success_msg=None): context_instance=ci) -def show_question(request, q_id, questionpaper_id, success_msg=None): +def show_question(request, q_id, attempt_no, questionpaper_id, success_msg=None): """Show a question if possible.""" if len(q_id) == 0: msg = 'Congratulations! You have successfully completed the quiz.' - return complete(request, msg, questionpaper_id) + return complete(request, msg, attempt_no, questionpaper_id) else: - return question(request, q_id, questionpaper_id, success_msg) + return question(request, q_id, attempt_no, questionpaper_id, success_msg) -def check(request, q_id, questionpaper_id=None): +def check(request, q_id, attempt_no=None, questionpaper_id=None): """Checks the answers of the user for particular question""" user = request.user - if not user.is_authenticated(): + q_paper = QuestionPaper.objects.get(id=questionpaper_id) + paper = AnswerPaper.objects.get(user=request.user, attempt_number=attempt_no, + 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) - q_paper = QuestionPaper.objects.get(id=questionpaper_id) - paper = AnswerPaper.objects.get(user=request.user, question_paper=q_paper) 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) + return show_question(request, next_q, attempt_no, questionpaper_id) # Add the answer submitted, regardless of it being correct or not. if question.type == 'mcq': @@ -766,10 +786,10 @@ def check(request, q_id, questionpaper_id=None): 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) + return complete(request, reason, attempt_no, questionpaper_id) if not paper.question_paper.quiz.active: reason = 'The quiz has been deactivated!' - return complete(request, reason, questionpaper_id) + return complete(request, reason, attempt_no, questionpaper_id) context = {'question': question, 'error_message': err_msg, 'paper': paper, 'last_attempt': user_code, 'quiz_name': paper.question_paper.quiz.description, @@ -781,10 +801,10 @@ def check(request, q_id, questionpaper_id=None): else: if time_left <= 0: reason = 'Your time is up!' - return complete(request, reason, questionpaper_id) + return complete(request, reason, attempt_no, questionpaper_id) else: next_q = paper.completed_question(question.id) - return show_question(request, next_q, + return show_question(request, next_q, attempt_no, questionpaper_id, success_msg) @@ -816,18 +836,19 @@ def validate_answer(user, user_answer, question): success, message = code_server.run_code(user_answer, question.test, user_dir, question.language) if success: - correct = True + correct = True return correct, success, message -def quit(request, questionpaper_id=None): +def quit(request, attempt_no=None, questionpaper_id=None): """Show the quit page when the user logs out.""" - context = {'id': questionpaper_id} + context = {'id': questionpaper_id, + 'attempt_no': attempt_no} return my_render_to_response('exam/quit.html', context, context_instance=RequestContext(request)) -def complete(request, reason=None, questionpaper_id=None): +def complete(request, reason=None, attempt_no=None, questionpaper_id=None): """Show a page to inform user that the quiz has been compeleted.""" user = request.user @@ -838,10 +859,13 @@ def complete(request, reason=None, questionpaper_id=None): return my_render_to_response('exam/complete.html', context) else: q_paper = QuestionPaper.objects.get(id=questionpaper_id) - paper = AnswerPaper.objects.get(user=user, question_paper=q_paper) + paper = AnswerPaper.objects.get(user=user, question_paper=q_paper, + attempt_number=attempt_no) paper.update_marks_obtained() paper.update_percent() paper.update_passed() + paper.end_time = datetime.datetime.now() + paper.update_status() paper.save() obt_marks = paper.marks_obtained tot_marks = paper.question_paper.total_marks @@ -850,12 +874,10 @@ def complete(request, reason=None, questionpaper_id=None): you answered all the questions correctly.\ You have been logged out successfully,\ Thank You !"} - logout(request) return my_render_to_response('exam/complete.html', context) else: message = reason or "You are successfully logged out" context = {'message': message} - logout(request) return my_render_to_response('exam/complete.html', context) no = False message = reason or 'The quiz has been completed. Thank you.' @@ -866,7 +888,7 @@ def complete(request, reason=None, questionpaper_id=None): if not no: # Logout the user and quit with the message given. answer_paper = AnswerPaper.objects.get(id=answerpaper_id) - answer_paper.endtime = datetime.datetime.now() + answer_paper.end_time = datetime.datetime.now() answer_paper.save() return my_redirect('/exam/quizzes/') else: @@ -1118,8 +1140,8 @@ def ajax_questionpaper(request, query): question_list = fixed_question_list + random_question_list questions = list(Question.objects.filter(type=question_type, points=marks_selected)) - questions = [ question for question in questions \ - if not str(question.id) in question_list ] + questions = [question for question in questions \ + if not str(question.id) in question_list] return my_render_to_response('exam/ajax_questions.html', {'questions': questions}) @@ -1147,7 +1169,7 @@ def design_questionpaper(request): question_paper.save() if fixed_questions: fixed_questions_ids = ",".join(fixed_questions) - fixed_questions_ids_list = fixed_questions_ids.split(',') + fixed_questions_ids_list = fixed_questions_ids.split(',') for question_id in fixed_questions_ids_list: question_paper.fixed_questions.add(question_id) if random_questions: |