healthchecks/hc/api/management/commands/ensuretriggers.py
2015-06-18 18:50:23 +03:00

28 lines
782 B
Python

from django.core.management.base import BaseCommand
from django.db import connection
class Command(BaseCommand):
help = 'Ensures triggers exist in database'
def handle(self, *args, **options):
cursor = connection.cursor()
cursor.execute("""
CREATE OR REPLACE FUNCTION update_alert_after()
RETURNS trigger AS $update_alert_after$
BEGIN
IF NEW.last_ping IS NOT NULL THEN
NEW.alert_after := NEW.last_ping + NEW.timeout + '1 hour';
END IF;
RETURN NEW;
END;
$update_alert_after$ LANGUAGE plpgsql;
DROP TRIGGER IF EXISTS update_alert_after ON api_check;
CREATE TRIGGER update_alert_after
BEFORE INSERT OR UPDATE OF last_ping, timeout ON api_check
FOR EACH ROW EXECUTE PROCEDURE update_alert_after();
""")