--- ZSQLExtend/ZSQLExtend.py	2011/02/14 22:00:50	1.138
+++ ZSQLExtend/ZSQLExtend.py	2011/02/17 18:23:58	1.140
@@ -10,6 +10,8 @@ from Products.PageTemplates.ZopePageTemp
 from Products.PageTemplates.PageTemplateFile import PageTemplateFile
 
 from Products.ZSQLMethods.SQL import SQLConnectionIDs
+from Shared.DC.ZRDB.Results import Results
+
 from xml.sax.saxutils import escape
 from types import *
 import Shared.DC.ZRDB.DA
@@ -586,12 +588,13 @@ class ZSQLExtendFolder(Folder,Persistent
         return pt()
 
 
-    def changeZSQLExtend(self,label,description,weight=0,connection_id=None,REQUEST=None,):
+    def changeZSQLExtend(self,label,description,weight=0,connection_id=None,autocommit=None,REQUEST=None,):
         """change the Konfiguration"""
         self.connection_id=connection_id
         self.weight=weight
         self.label=label
         self.description=description
+        self.autocommit = (autocommit == "on")
                     
         if REQUEST is not None:
             return self.manage_main(self, REQUEST)
@@ -995,6 +998,9 @@ class ZSQLExtendFolder(Folder,Persistent
         con = self.getConnectionObj()
         # call to get db object
         dbc = con()
+        if getattr(self, 'autocommit', False):
+            # force transaction isolation level (for psycopg2 0=autocommit)
+            dbc.tilevel = 0
         res = dbc.query(query, max_rows=max_rows)
         # return result set as Result object with Brains
         return Results(res)