diff options
Diffstat (limited to 'util/sql')
| -rw-r--r-- | util/sql/all.sql | 3 | ||||
| -rw-r--r-- | util/sql/func.sql | 33 |
2 files changed, 36 insertions, 0 deletions
diff --git a/util/sql/all.sql b/util/sql/all.sql index 06c1ca7f..e4f66d91 100644 --- a/util/sql/all.sql +++ b/util/sql/all.sql @@ -63,6 +63,9 @@ CREATE TRIGGER insert_notify AFTER INSERT ON tags CREATE TRIGGER release_vncache_update AFTER UPDATE ON releases FOR EACH ROW EXECUTE PROCEDURE release_vncache_update(); CREATE TRIGGER notify_pm AFTER INSERT ON threads_posts FOR EACH ROW EXECUTE PROCEDURE notify_pm(); +CREATE TRIGGER notify_dbdel AFTER UPDATE ON vn FOR EACH ROW EXECUTE PROCEDURE notify_dbdel(); +CREATE TRIGGER notify_dbdel AFTER UPDATE ON producers FOR EACH ROW EXECUTE PROCEDURE notify_dbdel(); +CREATE TRIGGER notify_dbdel AFTER UPDATE ON releases FOR EACH ROW EXECUTE PROCEDURE notify_dbdel(); -- Sequences used for ID generation of items not in the DB diff --git a/util/sql/func.sql b/util/sql/func.sql index 9675097e..1dcdd496 100644 --- a/util/sql/func.sql +++ b/util/sql/func.sql @@ -618,3 +618,36 @@ BEGIN END; $$ LANGUAGE plpgsql; + +-- called on UPDATE vn / producers / releases +CREATE OR REPLACE FUNCTION notify_dbdel() RETURNS trigger AS $$ +BEGIN + -- item is deleted? + IF OLD.latest IS DISTINCT FROM NEW.latest AND NOT OLD.hidden AND NEW.hidden THEN + INSERT INTO notifications (ntype, ltype, uid, iid, subid, c_title, c_byuser) + SELECT DISTINCT 'dbdel'::notification_ntype, + (CASE TG_TABLE_NAME WHEN 'vn' THEN 'v' WHEN 'releases' THEN 'r' ELSE 'p' END)::notification_ltype, + c.requester, NEW.id, c2.rev, x.title, c2.requester + -- look for changes of the deleted entry + -- this method may look a bit unintuitive, but it's way faster than doing LEFT JOINs + FROM changes c + JOIN ( SELECT vr.id, vr2.title FROM vn_rev vr + JOIN vn v ON v.id = vr.vid JOIN vn_rev vr2 ON vr2.id = v.latest + WHERE TG_TABLE_NAME = 'vn' AND vr.vid = NEW.id + UNION SELECT rr.id, rr2.title FROM releases_rev rr + JOIN releases r ON r.id = rr.rid JOIN releases_rev rr2 ON rr2.id = r.latest + WHERE TG_TABLE_NAME = 'releases' AND rr.rid = NEW.id + UNION SELECT pr.id, pr2.name FROM producers_rev pr + JOIN producers p ON p.id = pr.pid JOIN producers_rev pr2 ON pr2.id = p.latest + WHERE TG_TABLE_NAME = 'producers' AND pr.pid = NEW.id + ) x(id, title) ON c.id = x.id + -- join info about the deletion itself + JOIN changes c2 ON c2.id = NEW.latest + WHERE c.requester <> 1 -- exclude Multi + -- exclude the user who deleted the entry + AND c.requester <> c2.requester; + END IF; + RETURN NULL; +END; +$$ LANGUAGE plpgsql; + |