You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
2.0 KiB
70 lines
2.0 KiB
from django.core.management.base import BaseCommand
|
|
from django.db import connection
|
|
|
|
|
|
def _pg(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 + NEW.grace;
|
|
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, grace ON api_check
|
|
FOR EACH ROW EXECUTE PROCEDURE update_alert_after();
|
|
""")
|
|
|
|
|
|
def _mysql(cursor):
|
|
cursor.execute("""
|
|
DROP TRIGGER IF EXISTS update_alert_after;
|
|
""")
|
|
|
|
cursor.execute("""
|
|
CREATE TRIGGER update_alert_after
|
|
BEFORE UPDATE ON api_check
|
|
FOR EACH ROW SET
|
|
NEW.alert_after =
|
|
NEW.last_ping + INTERVAL (NEW.timeout + NEW.grace) MICROSECOND;
|
|
""")
|
|
|
|
|
|
def _sqlite(cursor):
|
|
cursor.execute("""
|
|
DROP TRIGGER IF EXISTS update_alert_after;
|
|
""")
|
|
|
|
cursor.execute("""
|
|
CREATE TRIGGER update_alert_after
|
|
AFTER UPDATE OF last_ping, timeout, grace ON api_check
|
|
FOR EACH ROW BEGIN
|
|
UPDATE api_check
|
|
SET alert_after =
|
|
datetime(strftime('%s', last_ping) +
|
|
timeout/1000000 + grace/1000000, 'unixepoch')
|
|
WHERE id = OLD.id;
|
|
END;
|
|
""")
|
|
|
|
|
|
class Command(BaseCommand):
|
|
help = 'Ensures triggers exist in database'
|
|
|
|
def handle(self, *args, **options):
|
|
with connection.cursor() as cursor:
|
|
if connection.vendor == "postgresql":
|
|
_pg(cursor)
|
|
return "Created PostgreSQL trigger"
|
|
if connection.vendor == "mysql":
|
|
_mysql(cursor)
|
|
return "Created MySQL trigger"
|
|
if connection.vendor == "sqlite":
|
|
_sqlite(cursor)
|
|
return "Created SQLite trigger"
|