Ticket #34802: admin-counts-message.patch

actions.py

@@ -48 +48 @@
             for obj in queryset:
                 obj_display = str(obj)
                 modeladmin.log_deletion(request, obj, obj_display)
-            modeladmin.delete_queryset(request, queryset)
+            actually_deleted_count = modeladmin.delete_queryset(request, queryset)
+            if actually_deleted_count is not None:
+                n = actually_deleted_count
             modeladmin.message_user(
                 request,
                 _("Successfully deleted %(count)d %(items)s.")

options.py

@@ -1233 +1233 @@
         obj.delete()
 
     def delete_queryset(self, request, queryset):
-        """Given a queryset, delete it from the database."""
-        queryset.delete()
+        """
+        Given a queryset, delete it from the database.
+        Optionally return the number of items deleted.
+        """
+        actually_deleted_count, _objecttypes = queryset.delete()
+        return actually_deleted_count
 
     def save_formset(self, request, form, formset, change):
         """