debug courses

apps/course/views/course.py

@@ -86,7 +86,7 @@ class CourseListAPIView(ListAPIView):
         if is_free := filters.get('is_free'):
             is_free = is_free.lower() == 'true'
             queryset = queryset.filter(
-                models.Q(is_free=is_free) | models.Q(price=0) if is_free else models.Q(is_free=False, price__gt=0)
+                Q(is_free=is_free) | Q(price=0) if is_free else Q(is_free=False, price__gt=0)
             )
         if is_online := filters.get('is_online'):
             is_online = is_online.lower() == 'true'