Add isUnderTransaction() accessor on database manager.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1391 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/database/manager.py

@@ -27,6 +27,9 @@ class DatabaseManager(object):
         """
         self._under_transaction = False
 
+    def isUnderTransaction(self):
+        return self._under_transaction
+
     def begin(self):
         """
             Begin a transaction