professor filter added for courses

apps/course/views/admin.py

@@ -98,6 +98,10 @@ class AdminCourseViewSet(viewsets.ModelViewSet):
         if category_id:
             queryset = queryset.filter(category_id=category_id)
 
+        professor_id = self.request.query_params.get('professor', None)
+        if professor_id:
+            queryset = queryset.filter(professors=professor_id)
+
         level = self.request.query_params.get('level', None)
         if level:
             queryset = queryset.filter(level__contains=[{"title": level}])