Fixed access of custom order property in model meta, falling back to order for legacy implementations.

Updated readme and version bump to 2.0.10

adminsortable/__init__.py

@@ -1,4 +1,8 @@
+<<<<<<< Updated upstream
 VERSION = (2, 0, 8)  # following PEP 386
+=======
+VERSION = (2, 0, 10)  # following PEP 386
+>>>>>>> Stashed changes
 DEV_N = None
 
 

adminsortable/admin.py

@@ -188,7 +188,13 @@ class SortableAdmin(SortableAdminBase, ModelAdmin):
             # Order the objects by the property they are sortable by,
             # then by the order, otherwise the regroup
             # template tag will not show the objects correctly
-            objects = objects.order_by(sortable_by_expression, 'order')
+
+            try:
+                order_field_name = opts.model._meta.ordering[0]
+            except IndexError:
+                order_field_name = 'order'
+
+            objects = objects.order_by(sortable_by_expression, order_field_name)
 
         try:
             verbose_name_plural = opts.verbose_name_plural.__unicode__()