Casey, I just wanted to thank you very, very, VERY much for that tip! I've spent far too many hours debugging very long, complex Z SQL methods. This will be an enormous help! By the way, it works like a charm on ZMySQLDA. Thanks! - T.J. -----Original Message----- From: zope-dev-admin@zope.org [mailto:zope-dev-admin@zope.org]On Behalf Of Casey Duncan Sent: Thursday, September 07, 2000 4:26 PM To: zope-dev@zope.org Subject: [Zope-dev] Z SQL Method Patch In debugging some Z SQL methods I found it quite hard to diagnose certain errors returned by the database backend because Zope doesn't return the SQL sent to the server, instead it returns "Could not render the query template!" which is not really true for this case. In looking at the source code of DA.py (lib/python/Shared/DC/ZRDB), and I think I found a simple solution: in manage_test insert the following indented after line 343 (except:) try: src=self(REQUEST, src__=1) except: pass This re-renders the query template if possible without sending it to the backend and returns the SQL in src. The result is your backend error message followed by the SQL generated. This should really save time debugging any dynamic Z SQL methods. It was moderately tested on Zope 2.2.1/PostgreSQL 7 via PyGreSQLDA. It should not be database dependant though. Enjoy. -Casey Duncan