Fix: Change all occurrences of 'coursestudent_set' to 'course_students'

courses/models.py

@@ -196,10 +196,10 @@ class Course(models.Model):
 
     def avg_lessons_users_progress(self, classes=None):
         if classes:
-            student_enrolled = self.coursestudent_set.filter(
+            student_enrolled = self.course_students.filter(
                 user__classes__in=classes).count()
         else:
-            student_enrolled = self.coursestudent_set.all().count()
+            student_enrolled = self.course_students.all().count()
         progress_list = []
         for lesson in self.lessons.all():
             lesson_progress = {}

courses/reports/serializers.py

@@ -43,7 +43,7 @@ class UserInDetailSerializer(serializers.ModelSerializer):
              #  'has_certificate': x.certificate.type == 'certificate',
              'has_certificate': False,
              'class_name': x.get_current_class().name
-            } for x in obj.coursestudent_set.all()]
+            } for x in obj.course_students.all()]
         return needed_stuff
 
     def get_topics_created(self, obj):

courses/reports/views.py

@@ -212,7 +212,7 @@ class UsersByGroupViewSet(PandasViewSet):
         if groups is not None:
             self.queryset = self.queryset.filter(groups__name__in=groups.split(','))
 
-        self.queryset = self.queryset.prefetch_related('groups', 'coursestudent_set')
+        self.queryset = self.queryset.prefetch_related('groups', 'course_students')
 
         return self.queryset