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145 lines
3.4 KiB
PL/PgSQL
145 lines
3.4 KiB
PL/PgSQL
-- Add user aggregates
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create table user_aggregates (
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id serial primary key,
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user_id int references user_ on update cascade on delete cascade not null,
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post_count bigint not null,
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post_score bigint not null,
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comment_count bigint not null,
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comment_score bigint not null,
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unique (user_id)
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);
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insert into user_aggregates (user_id, post_count, post_score, comment_count, comment_score)
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select u.id,
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coalesce(pd.posts, 0),
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coalesce(pd.score, 0),
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coalesce(cd.comments, 0),
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coalesce(cd.score, 0)
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from user_ u
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left join (
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select p.creator_id,
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count(distinct p.id) as posts,
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sum(pl.score) as score
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from post p
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left join post_like pl on p.id = pl.post_id
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group by p.creator_id
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) pd on u.id = pd.creator_id
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left join (
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select c.creator_id,
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count(distinct c.id) as comments,
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sum(cl.score) as score
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from comment c
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left join comment_like cl on c.id = cl.comment_id
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group by c.creator_id
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) cd on u.id = cd.creator_id;
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-- Add site aggregate triggers
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-- user
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create function site_aggregates_user_increment()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set users = users + 1;
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return null;
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end $$;
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create trigger site_aggregates_insert_user
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after insert on user_
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execute procedure site_aggregates_user_increment();
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create function site_aggregates_user_decrement()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set users = users - 1;
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return null;
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end $$;
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create trigger site_aggregates_delete_user
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after delete on user_
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execute procedure site_aggregates_user_decrement();
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-- post
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create function site_aggregates_post_increment()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set posts = posts + 1;
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return null;
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end $$;
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create trigger site_aggregates_insert_post
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after insert on post
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execute procedure site_aggregates_post_increment();
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create function site_aggregates_post_decrement()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set posts = posts - 1;
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return null;
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end $$;
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create trigger site_aggregates_delete_post
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after delete on post
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execute procedure site_aggregates_post_decrement();
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-- comment
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create function site_aggregates_comment_increment()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set comments = comments + 1;
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return null;
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end $$;
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create trigger site_aggregates_insert_comment
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after insert on comment
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execute procedure site_aggregates_comment_increment();
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create function site_aggregates_comment_decrement()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set comments = comments - 1;
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return null;
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end $$;
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create trigger site_aggregates_delete_comment
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after delete on comment
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execute procedure site_aggregates_comment_decrement();
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-- community
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create function site_aggregates_community_increment()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set communities = communities + 1;
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return null;
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end $$;
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create trigger site_aggregates_insert_community
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after insert on community
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execute procedure site_aggregates_community_increment();
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create function site_aggregates_community_decrement()
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returns trigger language plpgsql
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as $$
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begin
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update site_aggregates
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set communities = communities - 1;
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return null;
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end $$;
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create trigger site_aggregates_delete_community
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after delete on community
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execute procedure site_aggregates_community_decrement();
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