Date: Tue, 11 Mar 2003 12:16:44 -0500
From: george young <gry@ll.mit.edu>
To: pgsql-interfaces@postgresql.org
Subject: listen/notify with python pgdb
Message-Id: <20030311121644.333cdfff.gry@ll.mit.edu>
Reply-To: gry@ll.mit.edu
Organization: MIT Lincoln Laboratory
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[postgresql 7.3, python 2.3a1, pygresql-3.4-pre021201]
Does anyone use listen/notify with pgdb, the python DB-API
interface?  I've done a crude hack, but maybe someone has a nicer one?
{Yes, I know notify is not part of the python DB-API: I'm trying
to stay as close to portable API's and still get the work done...}

Here's what I'm doing:
#pgdb_extended.py
'''This is a small wrapper module for pgdb, the Python DB-SIG 2.0
compliant implentation for postgresql access from python.
This wrapper adds just one member function, viz. 'pgdbCnx.getnotify()'.
getnotify just calls the postgresql libpq C API function getnotify() to
get notify messages resulting corresponding to sql 'listen' commands that
have been made.'''

from pgdb import *

def getnotify(self):
        return self._pgdbCnx__cnx.getnotify()

pgdbCnx.getnotify = getnotify


-- George


-- 
 I cannot think why the whole bed of the ocean is
 not one solid mass of oysters, so prolific they seem. Ah,
 I am wandering! Strange how the brain controls the brain!
	-- Sherlock Holmes in "The Dying Detective"