Change default grading system behaviour

Cannot edit default system.
Code as per PEP8 standards.
Updates grade after regrade or manual grading
Field change from total marks to percentage
Removed unused fields from grades app

1 files changed, 14 insertions, 6 deletions

diff --git a/yaksh/models.py b/yaksh/models.py
index f76feed..1ecb1f8 100644
--- a/yaksh/models.py
+++ b/yaksh/models.py
@@ -738,13 +738,22 @@ class CourseStatus(models.Model):
     course = models.ForeignKey(Course)
     user = models.ForeignKey(User)
     grade = models.CharField(max_length=255, null=True, blank=True)
-    total_marks = models.FloatField(default=0.0)
+    percentage = models.FloatField(default=0.0)
+
+    def get_grade(self):
+        return self.grade
 
     def set_grade(self):
-        grade = self.course.grading_system.get_grade(self.total_marks)
-        self.grade = grade
+        if self.is_course_complete():
+            self.calculate_percentage()
+            if self.course.grading_system is None:
+                grading_system = GradingSystem.objects.get(name='default')
+            else:
+                grading_system = self.course.grading_system
+            grade = grading_system.get_grade(self.percentage)
+            self.grade = grade
 
-    def calculate_total_marks(self):
+    def calculate_percentage(self):
         if self.is_course_complete():
             quizzes = self.course.get_quizzes()
             total_weightage = 0
@@ -755,8 +764,7 @@ class CourseStatus(models.Model):
                         quiz, self.user.id, self.course.id)
                 out_of = quiz.questionpaper_set.first().total_marks
                 sum += (marks/out_of)*quiz.weightage
-            self.total_marks = (sum/total_weightage)*100
-            self.set_grade()
+            self.percentage = (sum/total_weightage)*100
 
 
     def is_course_complete(self):