Ticket #5057: admin_ordering.diff

django/contrib/admin/views/main.py

@@ -729 +729 @@
                 pass
             elif isinstance(f.rel, models.ManyToOneRel):
                 rel_ordering = f.rel.to._meta.ordering and f.rel.to._meta.ordering[0] or f.rel.to._meta.pk.column
+                if rel_ordering.startswith('-'):
+                    rel_ordering = rel_ordering[1:]
+                    self.order_type = (self.order_type == 'desc' and 'asc' or 'desc')
                 lookup_order_field = '%s.%s' % (f.rel.to._meta.db_table, rel_ordering)
 
         # Set ordering.