cleaned url.

User can resume the quiz from where the left, if time permits.
Useful where browser crashes or user by mistake closes the quiz.
Also, on refresh during the quiz will not throw error.

1 files changed, 40 insertions, 4 deletions

diff --git a/testapp/exam/views.py b/testapp/exam/views.py
index 4165b7f..11aca06 100644
--- a/testapp/exam/views.py
+++ b/testapp/exam/views.py
@@ -165,7 +165,6 @@ def intro(request, questionpaper_id):
     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(
@@ -189,10 +188,29 @@ def intro(request, questionpaper_id):
                 'attempt_num': already_attempted + 1}
         return my_render_to_response('exam/intro.html', context,
                                      context_instance=ci)
+
+    if already_attempted == attempt_number:
+        inprogress, previous_attempt = _check_previous_attempt(attempted_papers,
+                already_attempted)
+        if inprogress:
+            return show_question(request,
+                    previous_attempt.current_question(),
+                    previous_attempt.attempt_number,
+                    previous_attempt.question_paper.id)
+        else:
+            return my_redirect("/exam/quizzes")
+
+
     if already_attempted < attempt_number or attempt_number < 0:
-        previous_attempt_day = attempted_papers[already_attempted-1].start_time
-        today = datetime.datetime.today()
-        days_after_attempt = (today - previous_attempt_day).days
+        inprogress, previous_attempt = _check_previous_attempt(attempted_papers,
+                already_attempted)
+        if inprogress:
+            return show_question(request,
+                    previous_attempt.current_question(),
+                    previous_attempt.attempt_number,
+                    previous_attempt.question_paper.id)
+        days_after_attempt = (datetime.datetime.today() - \
+                previous_attempt.start_time).days
         if days_after_attempt >= time_lag:
             context = {'user': user, 'paper_id': questionpaper_id,\
                     'attempt_num': already_attempted + 1}
@@ -204,6 +222,20 @@ def intro(request, questionpaper_id):
         return my_redirect("/exam/quizzes/")
 
 
+def _check_previous_attempt(attempted_papers, already_attempted):
+    previous_attempt = attempted_papers[already_attempted-1]
+    previous_attempt_day = previous_attempt.start_time
+    today = datetime.datetime.today()
+    if previous_attempt.status == 'inprogress':
+        end_time = previous_attempt.end_time
+        quiz_time = previous_attempt.question_paper.quiz.duration*60
+        if quiz_time > (today-previous_attempt_day).seconds:
+            return True, previous_attempt
+        else:
+            return False, previous_attempt
+    else:
+        return False, previous_attempt
+
 def results_user(request):
     """Show list of Results of Quizzes that is taken by logged-in user."""
     user = request.user
@@ -809,6 +841,10 @@ def check(request, q_id, attempt_num=None, questionpaper_id=None):
     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()
+        return show_question(request, next_q, attempt_num, questionpaper_id)
+
     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)