- merge versioning example fix from 0.6

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/sqlalchemy/orm/attributes.py b/lib/sqlalchemy/orm/attributes.py
index 0457efc1f..667e69190 100644
--- a/lib/sqlalchemy/orm/attributes.py
+++ b/lib/sqlalchemy/orm/attributes.py
@@ -269,6 +269,16 @@ class AttributeImpl(object):
 
         self.expire_missing = expire_missing
         
+    def _get_active_history(self):
+        """Backwards compat for impl.active_history"""
+        
+        return self.dispatch.active_history
+    
+    def _set_active_history(self, value):
+        self.dispatch.active_history = value
+    
+    active_history = property(_get_active_history, _set_active_history)
+    
         
     def hasparent(self, state, optimistic=False):
         """Return the boolean value of a `hasparent` flag attached to