Exercise feature in video lessons

Exercise is same as quiz except for following differences:
- no time limit
- no marks weightage
- no instruction page
- skip denied for a particular time

An attribute 'is_exercise' in Quiz determines whether the quiz is
exercise or not.
Questions contains 'min_time' attribute.
For an exercise a question cannot be skipped for an allotted minimum
time, after which either django or JavaScript makes Next button
available.

Implementation is as such due to complexity of our existing views and
templates.
Also, after min_time, same question with Next button is available to
move on, assuming that solution is present in the video.

1 files changed, 7 insertions, 1 deletions

diff --git a/yaksh/forms.py b/yaksh/forms.py
index 52e6a12..84db33e 100644
--- a/yaksh/forms.py
+++ b/yaksh/forms.py
@@ -173,6 +173,12 @@ class UserLoginForm(forms.Form):
         return user
 
 
+class ExerciseForm(forms.ModelForm):
+    class Meta:
+        model = Quiz
+        fields = ['description']
+
+
 class QuizForm(forms.ModelForm):
     """Creates a form to add or edit a Quiz.
     It has the related fields and functions required."""
@@ -209,7 +215,7 @@ class QuizForm(forms.ModelForm):
 
     class Meta:
         model = Quiz
-        exclude = ["is_trial", "creator"]
+        exclude = ["is_trial", "creator", "is_exercise"]
 
 
 class QuestionForm(forms.ModelForm):