Ticket #3742: admin_order_fields_desc.diff

admin_list.py

@@ -101 +101 @@
 
         th_classes = []
         new_order_type = 'asc'
-        if field_name == cl.order_field:
+        order_field = getattr(getattr(cl.model, field_name, None), "admin_order_field", None)
+        if cl.order_field in (order_field, field_name):
             th_classes.append('sorted %sending' % cl.order_type.lower())
             new_order_type = {'asc': 'desc', 'desc': 'asc'}[cl.order_type.lower()]