Ticket #6915: 6915.naive-patch.diff

django/db/models/query.py

@@ -270 +270 @@
         del_query.query.select_related = False
         del_query.query.clear_ordering()
 
+        # Delete objects individually if self.model has a custom delete() 
+        # method. See ticket #6915.
+        from django.db.models.base import Model
+        if self.model is not None and self.model.delete != Model.delete:
+            for obj in self:
+                obj.delete()
+            return
+
         # Delete objects in chunks to prevent the list of related objects from
         # becoming too long.
         while 1: