| /*Calendar History*/ |
| CREATE TABLE IF NOT EXISTS CALENDAR_HIST (HIST_ID serial, operation char(1), stamp timestamp, LIKE CALENDAR EXCLUDING ALL); |
| -- |
| -- Create a row in {0}.calendar_hist_audit to reflect the operation performed on calendar, |
| -- making use of the special variable TG_OP to work out the operation. |
| -- |
| CREATE OR REPLACE FUNCTION process_calendar_audit() RETURNS TRIGGER AS $object_audit$ BEGIN IF (TG_OP = 'DELETE') THEN INSERT INTO {0}.calendar_hist SELECT nextval('calendar_hist_hist_id_seq'), 'D', now(), OLD.*; ELSIF (TG_OP = 'UPDATE') THEN INSERT INTO {0}.calendar_hist SELECT nextval('calendar_hist_hist_id_seq'), 'U', now(), NEW.*; ELSIF (TG_OP = 'INSERT') THEN INSERT INTO {0}.calendar_hist SELECT nextval('calendar_hist_hist_id_seq'), 'I', now(), NEW.*; END IF; RETURN NULL; END; $object_audit$ LANGUAGE plpgsql; |
| DROP TRIGGER IF EXISTS calendar_audit on {0}.calendar; |
| CREATE TRIGGER calendar_audit AFTER INSERT OR UPDATE OR DELETE ON {0}.calendar FOR EACH ROW EXECUTE PROCEDURE process_calendar_audit(); |
