lemmy/migrations/2023-07-27-134652_remove-expensive-broken-trigger/up.sql

79 lines
1.8 KiB
MySQL
Raw Normal View History

CREATE OR REPLACE FUNCTION person_aggregates_comment_count ()
RETURNS TRIGGER
LANGUAGE plpgsql
AS $$
BEGIN
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
UPDATE
person_aggregates
SET
comment_count = comment_count + 1
WHERE
person_id = NEW.creator_id;
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
UPDATE
person_aggregates
SET
comment_count = comment_count - 1
WHERE
person_id = OLD.creator_id;
END IF;
RETURN NULL;
END
$$;
CREATE OR REPLACE FUNCTION person_aggregates_post_count ()
RETURNS TRIGGER
LANGUAGE plpgsql
AS $$
BEGIN
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
UPDATE
person_aggregates
SET
post_count = post_count + 1
WHERE
person_id = NEW.creator_id;
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
UPDATE
person_aggregates
SET
post_count = post_count - 1
WHERE
person_id = OLD.creator_id;
END IF;
RETURN NULL;
END
$$;
CREATE OR REPLACE FUNCTION community_aggregates_comment_count ()
RETURNS TRIGGER
LANGUAGE plpgsql
AS $$
BEGIN
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
UPDATE
community_aggregates ca
SET
comments = comments + 1
FROM
post p
WHERE
p.id = NEW.post_id
AND ca.community_id = p.community_id;
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
UPDATE
community_aggregates ca
SET
comments = comments - 1
FROM
post p
WHERE
p.id = OLD.post_id
AND ca.community_id = p.community_id;
END IF;
RETURN NULL;
END
$$;