mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-11-16 09:24:00 +00:00
e315092ee3
* remove n^2 part of person triggers, improve community aggregate trigger * comment out comment_score tests since previously they only accidentally succeeded * empty
80 lines
No EOL
2.8 KiB
PL/PgSQL
80 lines
No EOL
2.8 KiB
PL/PgSQL
create or replace function person_aggregates_comment_count()
|
|
returns trigger language plpgsql
|
|
as $$
|
|
begin
|
|
IF (was_restored_or_created(TG_OP, OLD, NEW)) THEN
|
|
update person_aggregates
|
|
set comment_count = comment_count + 1 where person_id = NEW.creator_id;
|
|
ELSIF (was_removed_or_deleted(TG_OP, OLD, NEW)) THEN
|
|
update person_aggregates
|
|
set comment_count = comment_count - 1 where person_id = OLD.creator_id;
|
|
|
|
-- If the comment gets deleted, the score calculation trigger won't fire,
|
|
-- so you need to re-calculate
|
|
update person_aggregates ua
|
|
set comment_score = cd.score
|
|
from (
|
|
select u.id,
|
|
coalesce(0, sum(cl.score)) as score
|
|
-- User join because comments could be empty
|
|
from person u
|
|
left join comment c on u.id = c.creator_id and c.deleted = 'f' and c.removed = 'f'
|
|
left join comment_like cl on c.id = cl.comment_id
|
|
group by u.id
|
|
) cd
|
|
where ua.person_id = OLD.creator_id;
|
|
END IF;
|
|
return null;
|
|
end $$;
|
|
|
|
create or replace function person_aggregates_post_count()
|
|
returns trigger language plpgsql
|
|
as $$
|
|
begin
|
|
IF (was_restored_or_created(TG_OP, OLD, NEW)) THEN
|
|
update person_aggregates
|
|
set post_count = post_count + 1 where person_id = NEW.creator_id;
|
|
|
|
ELSIF (was_removed_or_deleted(TG_OP, OLD, NEW)) THEN
|
|
update person_aggregates
|
|
set post_count = post_count - 1 where person_id = OLD.creator_id;
|
|
|
|
-- If the post gets deleted, the score calculation trigger won't fire,
|
|
-- so you need to re-calculate
|
|
update person_aggregates ua
|
|
set post_score = pd.score
|
|
from (
|
|
select u.id,
|
|
coalesce(0, sum(pl.score)) as score
|
|
-- User join because posts could be empty
|
|
from person u
|
|
left join post p on u.id = p.creator_id and p.deleted = 'f' and p.removed = 'f'
|
|
left join post_like pl on p.id = pl.post_id
|
|
group by u.id
|
|
) pd
|
|
where ua.person_id = OLD.creator_id;
|
|
|
|
END IF;
|
|
return null;
|
|
end $$;
|
|
|
|
create or replace function community_aggregates_comment_count()
|
|
returns trigger language plpgsql
|
|
as $$
|
|
begin
|
|
IF (was_restored_or_created(TG_OP, OLD, NEW)) THEN
|
|
update community_aggregates ca
|
|
set comments = comments + 1 from comment c, post p
|
|
where p.id = c.post_id
|
|
and p.id = NEW.post_id
|
|
and ca.community_id = p.community_id;
|
|
ELSIF (was_removed_or_deleted(TG_OP, OLD, NEW)) THEN
|
|
update community_aggregates ca
|
|
set comments = comments - 1 from comment c, post p
|
|
where p.id = c.post_id
|
|
and p.id = OLD.post_id
|
|
and ca.community_id = p.community_id;
|
|
|
|
END IF;
|
|
return null;
|
|
end $$; |