- SessionContext and assignmapper are deprecated

- Session function is removed
- all replaced with new sessionmaker() function.  description at:
http://www.sqlalchemy.org/trac/wiki/WhatsNewIn04#create_sessionSessionContextassignmapperDeprecated

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/sqlalchemy/util.py b/lib/sqlalchemy/util.py
index 7391d86fd..ea1c8286a 100644
--- a/lib/sqlalchemy/util.py
+++ b/lib/sqlalchemy/util.py
@@ -543,7 +543,10 @@ class ScopedRegistry(object):
             return self.registry[key]
         except KeyError:
             return self.registry.setdefault(key, self.createfunc())
-
+    
+    def has(self):
+        return self._get_key() in self.registry
+        
     def set(self, obj):
         self.registry[self._get_key()] = obj