redirect to dashboard after exam.

After exam is over or time-out the user is redirected to the result
page.
The user is not logged out. Current time is checked with the quiz end
time, so that the user cannot reattempt the quiz.

1 files changed, 19 insertions, 16 deletions

diff --git a/testapp/exam/views.py b/testapp/exam/views.py
index 7c9af6c..aeb93ca 100644
--- a/testapp/exam/views.py
+++ b/testapp/exam/views.py
@@ -22,6 +22,7 @@ from exam.forms import UserRegisterForm, UserLoginForm, QuizForm,\
 from 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'))
 
@@ -142,7 +143,6 @@ def quizlist_user(request):
     pre_requisites = []
     context = {}
 
-
     if 'cannot_attempt' in request.GET:
         context['cannot_attempt'] = True
 
@@ -155,7 +155,7 @@ def quizlist_user(request):
     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:
+            answer_paper.end_time != answer_paper.start_time:
                 avail_quizzes.remove(quiz)
                 quizzes_taken.append(answer_paper)
 
@@ -181,11 +181,11 @@ def intro(request, questionpaper_id):
                 return my_render_to_response('exam/intro.html', context,
                                              context_instance=ci)
             else:
-                context = {'user': user, 'cannot_attempt':True}
+                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)
@@ -389,7 +389,7 @@ 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
             return my_render_to_response('exam/add_quiz.html',
                                          {'form': form},
                                          context_instance=ci)
@@ -607,10 +607,11 @@ 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."""
 
@@ -691,6 +692,9 @@ def question(request, q_id, questionpaper_id, success_msg=None):
     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!')
@@ -722,11 +726,11 @@ def check(request, q_id, questionpaper_id=None):
     """Checks the answers of the user for particular question"""
 
     user = request.user
-    if not user.is_authenticated():
-        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)
+    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
@@ -816,7 +820,7 @@ 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
 
 
@@ -842,6 +846,7 @@ def complete(request, reason=None, questionpaper_id=None):
         paper.update_marks_obtained()
         paper.update_percent()
         paper.update_passed()
+        paper.end_time = datetime.datetime.now()
         paper.save()
         obt_marks = paper.marks_obtained
         tot_marks = paper.question_paper.total_marks
@@ -850,12 +855,10 @@ 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 +869,7 @@ 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 +1121,8 @@ 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 +1150,7 @@ 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: