mirror of https://github.com/LemmyNet/lemmy.git
80 lines
3.0 KiB
PL/PgSQL
80 lines
3.0 KiB
PL/PgSQL
create or replace function refresh_post()
|
|
returns trigger language plpgsql
|
|
as $$
|
|
begin
|
|
IF (TG_OP = 'DELETE') THEN
|
|
delete from post_aggregates_fast where id = OLD.id;
|
|
|
|
-- Update community number of posts
|
|
update community_aggregates_fast set number_of_posts = number_of_posts - 1 where id = OLD.community_id;
|
|
ELSIF (TG_OP = 'UPDATE') THEN
|
|
delete from post_aggregates_fast where id = OLD.id;
|
|
insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.id on conflict (id) do nothing;
|
|
|
|
ELSIF (TG_OP = 'INSERT') THEN
|
|
insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.id;
|
|
|
|
-- Update that users number of posts, post score
|
|
delete from user_fast where id = NEW.creator_id;
|
|
insert into user_fast select * from user_view where id = NEW.creator_id on conflict (id) do nothing;
|
|
|
|
-- Update community number of posts
|
|
update community_aggregates_fast set number_of_posts = number_of_posts + 1 where id = NEW.community_id;
|
|
|
|
-- Update the hot rank on the post table
|
|
-- TODO this might not correctly update it, using a 1 week interval
|
|
update post_aggregates_fast as paf
|
|
set hot_rank = pav.hot_rank
|
|
from post_aggregates_view as pav
|
|
where paf.id = pav.id and (pav.published > ('now'::timestamp - '1 week'::interval));
|
|
END IF;
|
|
|
|
return null;
|
|
end $$;
|
|
|
|
|
|
create or replace function refresh_comment()
|
|
returns trigger language plpgsql
|
|
as $$
|
|
begin
|
|
IF (TG_OP = 'DELETE') THEN
|
|
delete from comment_aggregates_fast where id = OLD.id;
|
|
|
|
-- Update community number of comments
|
|
update community_aggregates_fast as caf
|
|
set number_of_comments = number_of_comments - 1
|
|
from post as p
|
|
where caf.id = p.community_id and p.id = OLD.post_id;
|
|
|
|
ELSIF (TG_OP = 'UPDATE') THEN
|
|
delete from comment_aggregates_fast where id = OLD.id;
|
|
insert into comment_aggregates_fast select * from comment_aggregates_view where id = NEW.id on conflict (id) do nothing;
|
|
ELSIF (TG_OP = 'INSERT') THEN
|
|
insert into comment_aggregates_fast select * from comment_aggregates_view where id = NEW.id;
|
|
|
|
-- Update user view due to comment count
|
|
update user_fast
|
|
set number_of_comments = number_of_comments + 1
|
|
where id = NEW.creator_id;
|
|
|
|
-- Update post view due to comment count, new comment activity time, but only on new posts
|
|
-- TODO this could be done more efficiently
|
|
delete from post_aggregates_fast where id = NEW.post_id;
|
|
insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.post_id on conflict (id) do nothing;
|
|
|
|
-- Force the hot rank as zero on week-older posts
|
|
update post_aggregates_fast as paf
|
|
set hot_rank = 0
|
|
where paf.id = NEW.post_id and (paf.published < ('now'::timestamp - '1 week'::interval));
|
|
|
|
-- Update community number of comments
|
|
update community_aggregates_fast as caf
|
|
set number_of_comments = number_of_comments + 1
|
|
from post as p
|
|
where caf.id = p.community_id and p.id = NEW.post_id;
|
|
|
|
END IF;
|
|
|
|
return null;
|
|
end $$;
|