added mapper return value to assign_mapper

diff --git a/lib/sqlalchemy/ext/assignmapper.py b/lib/sqlalchemy/ext/assignmapper.py
index e672d835e50378bcfb8e2b5c4eb7a65457d3a0f9..2e7c765d9858c6b35005686278183a1acc258325 100644 (file)
--- a/lib/sqlalchemy/ext/assignmapper.py
+++ b/lib/sqlalchemy/ext/assignmapper.py
@@ -34,3 +34,4 @@ def assign_mapper(ctx, class_, *args, **kwargs):
         monkeypatch_query_method(ctx, class_, name)
     for name in ['flush', 'delete', 'expire', 'refresh', 'expunge', 'merge', 'save', 'update', 'save_or_update']:
         monkeypatch_objectstore_method(ctx, class_, name)
+    return m
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