Django <1.9 compatibility.

idlesign · Sep 19, 2017 · 1f37350 · 1f37350
1 parent 80e5cec
commit 1f37350
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/sitetree/admin.py b/sitetree/admin.py
@@ -115,7 +115,8 @@ def formfield_for_manytomany(self, db_field, request=None, **kwargs):
         # Avoid a major performance hit resolving permission names which
         # triggers a content_type load:
         if db_field.name == 'access_permissions':
-            qs = kwargs.get('queryset', db_field.remote_field.model.objects)
+            objects = db_field.remote_field.model.objects if DJANGO_POST_19 else db_field.rel.to.objects
+            qs = kwargs.get('queryset', objects)
             kwargs['queryset'] = qs.select_related('content_type')
 
         return super(TreeItemAdmin, self).formfield_for_manytomany(db_field, request=request, **kwargs)