mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-22 17:06:33 +03:00
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
# notify.py - example of getting notifies
|
|
#
|
|
# Copyright (C) 2001-2010 Federico Di Gregorio <fog@debian.org>
|
|
#
|
|
# psycopg2 is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU Lesser General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
# License for more details.
|
|
|
|
## put in DSN your DSN string
|
|
|
|
DSN = 'dbname=test'
|
|
|
|
## don't modify anything below this line (except for experimenting)
|
|
|
|
import sys
|
|
import select
|
|
import psycopg2
|
|
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
|
|
|
|
if len(sys.argv) > 1:
|
|
DSN = sys.argv[1]
|
|
|
|
print "Opening connection using dns:", DSN
|
|
conn = psycopg2.connect(DSN)
|
|
print "Encoding for this connection is", conn.encoding
|
|
|
|
conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
|
|
curs = conn.cursor()
|
|
|
|
curs.execute("listen test")
|
|
|
|
print "Waiting for 'NOTIFY test'"
|
|
while 1:
|
|
if select.select([conn],[],[],5)==([],[],[]):
|
|
print "Timeout"
|
|
else:
|
|
conn.poll()
|
|
while conn.notifies:
|
|
print "Got NOTIFY:", conn.notifies.pop()
|