lemmy/migrations/2021-02-14-041356_split_user_table/up.sql

274 lines
8.4 KiB
MySQL
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-- Person
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-- Drop the 2 views user_alias_1, user_alias_2
drop view user_alias_1, user_alias_2;
-- rename the user_ table to person
alter table user_ rename to person;
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alter sequence user__id_seq rename to person_id_seq;
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-- create a new table local_user
create table local_user (
id serial primary key,
user_id int references person on update cascade on delete cascade not null,
password_encrypted text not null,
email text,
admin boolean default false not null,
show_nsfw boolean default false not null,
theme character varying(20) default 'darkly'::character varying not null,
default_sort_type smallint default 0 not null,
default_listing_type smallint default 1 not null,
lang character varying(20) default 'browser'::character varying not null,
show_avatars boolean default true not null,
send_notifications_to_email boolean default false not null,
matrix_user_id text,
unique (user_id)
);
-- Copy the local users over to the new table
insert into local_user
(
user_id,
password_encrypted,
email,
admin,
show_nsfw,
theme,
default_sort_type,
default_listing_type,
lang,
show_avatars,
send_notifications_to_email,
matrix_user_id
)
select
id,
password_encrypted,
email,
admin,
show_nsfw,
theme,
default_sort_type,
default_listing_type,
lang,
show_avatars,
send_notifications_to_email,
matrix_user_id
from person
where local = true;
-- Drop those columns from person
alter table person
drop column password_encrypted,
drop column email,
drop column admin,
drop column show_nsfw,
drop column theme,
drop column default_sort_type,
drop column default_listing_type,
drop column lang,
drop column show_avatars,
drop column send_notifications_to_email,
drop column matrix_user_id;
-- Rename indexes
alter index user__pkey rename to person__pkey;
alter index idx_user_actor_id rename to idx_person_actor_id;
alter index idx_user_inbox_url rename to idx_person_inbox_url;
alter index idx_user_lower_actor_id rename to idx_person_lower_actor_id;
alter index idx_user_published rename to idx_person_published;
-- Rename triggers
alter trigger site_aggregates_user_delete on person rename to site_aggregates_person_delete;
alter trigger site_aggregates_user_insert on person rename to site_aggregates_person_insert;
-- Rename the trigger functions
alter function site_aggregates_user_delete() rename to site_aggregates_person_delete;
alter function site_aggregates_user_insert() rename to site_aggregates_person_insert;
-- Create views
create view person_alias_1 as select * from person;
create view person_alias_2 as select * from person;
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-- Redo user aggregates into person_aggregates
alter table user_aggregates rename to person_aggregates;
alter sequence user_aggregates_id_seq rename to person_aggregates_id_seq;
alter table person_aggregates rename column user_id to person_id;
-- index
alter index user_aggregates_pkey rename to person_aggregates_pkey;
alter index idx_user_aggregates_comment_score rename to idx_person_aggregates_comment_score;
alter index user_aggregates_user_id_key rename to person_aggregates_person_id_key;
alter table person_aggregates rename constraint user_aggregates_user_id_fkey to person_aggregates_person_id_fkey;
-- Drop all the old triggers and functions
drop trigger user_aggregates_user on person;
drop trigger user_aggregates_post_count on post;
drop trigger user_aggregates_post_score on post_like;
drop trigger user_aggregates_comment_count on comment;
drop trigger user_aggregates_comment_score on comment_like;
drop function
user_aggregates_user,
user_aggregates_post_count,
user_aggregates_post_score,
user_aggregates_comment_count,
user_aggregates_comment_score;
-- initial user add
create function person_aggregates_person()
returns trigger language plpgsql
as $$
begin
IF (TG_OP = 'INSERT') THEN
insert into person_aggregates (person_id) values (NEW.id);
ELSIF (TG_OP = 'DELETE') THEN
delete from person_aggregates where person_id = OLD.id;
END IF;
return null;
end $$;
create trigger person_aggregates_person
after insert or delete on person
for each row
execute procedure person_aggregates_person();
-- post count
create function person_aggregates_post_count()
returns trigger language plpgsql
as $$
begin
IF (TG_OP = 'INSERT') THEN
update person_aggregates
set post_count = post_count + 1 where person_id = NEW.creator_id;
ELSIF (TG_OP = 'DELETE') THEN
update person_aggregates
set post_count = post_count - 1 where person_id = OLD.creator_id;
-- If the post gets deleted, the score calculation trigger won't fire,
-- so you need to re-calculate
update person_aggregates ua
set post_score = pd.score
from (
select u.id,
coalesce(0, sum(pl.score)) as score
-- User join because posts could be empty
from person u
left join post p on u.id = p.creator_id
left join post_like pl on p.id = pl.post_id
group by u.id
) pd
where ua.person_id = OLD.creator_id;
END IF;
return null;
end $$;
create trigger person_aggregates_post_count
after insert or delete on post
for each row
execute procedure person_aggregates_post_count();
-- post score
create function person_aggregates_post_score()
returns trigger language plpgsql
as $$
begin
IF (TG_OP = 'INSERT') THEN
-- Need to get the post creator, not the voter
update person_aggregates ua
set post_score = post_score + NEW.score
from post p
where ua.person_id = p.creator_id and p.id = NEW.post_id;
ELSIF (TG_OP = 'DELETE') THEN
update person_aggregates ua
set post_score = post_score - OLD.score
from post p
where ua.person_id = p.creator_id and p.id = OLD.post_id;
END IF;
return null;
end $$;
create trigger person_aggregates_post_score
after insert or delete on post_like
for each row
execute procedure person_aggregates_post_score();
-- comment count
create function person_aggregates_comment_count()
returns trigger language plpgsql
as $$
begin
IF (TG_OP = 'INSERT') THEN
update person_aggregates
set comment_count = comment_count + 1 where person_id = NEW.creator_id;
ELSIF (TG_OP = 'DELETE') THEN
update person_aggregates
set comment_count = comment_count - 1 where person_id = OLD.creator_id;
-- If the comment gets deleted, the score calculation trigger won't fire,
-- so you need to re-calculate
update person_aggregates ua
set comment_score = cd.score
from (
select u.id,
coalesce(0, sum(cl.score)) as score
-- User join because comments could be empty
from person u
left join comment c on u.id = c.creator_id
left join comment_like cl on c.id = cl.comment_id
group by u.id
) cd
where ua.person_id = OLD.creator_id;
END IF;
return null;
end $$;
create trigger person_aggregates_comment_count
after insert or delete on comment
for each row
execute procedure person_aggregates_comment_count();
-- comment score
create function person_aggregates_comment_score()
returns trigger language plpgsql
as $$
begin
IF (TG_OP = 'INSERT') THEN
-- Need to get the post creator, not the voter
update person_aggregates ua
set comment_score = comment_score + NEW.score
from comment c
where ua.person_id = c.creator_id and c.id = NEW.comment_id;
ELSIF (TG_OP = 'DELETE') THEN
update person_aggregates ua
set comment_score = comment_score - OLD.score
from comment c
where ua.person_id = c.creator_id and c.id = OLD.comment_id;
END IF;
return null;
end $$;
create trigger person_aggregates_comment_score
after insert or delete on comment_like
for each row
execute procedure person_aggregates_comment_score();
-- person_mention
alter table user_mention rename to person_mention;
alter sequence user_mention_id_seq rename to person_mention_id_seq;
alter index user_mention_pkey rename to person_mention_pkey;
alter index user_mention_recipient_id_comment_id_key rename to person_mention_recipient_id_comment_id_key;
alter table person_mention rename constraint user_mention_comment_id_fkey to person_mention_comment_id_fkey;
alter table person_mention rename constraint user_mention_recipient_id_fkey to person_mention_recipient_id_fkey;
-- user_ban
alter table user_ban rename to person_ban;
alter sequence user_ban_id_seq rename to person_ban_id_seq;
alter index user_ban_pkey rename to person_ban_pkey;
alter index user_ban_user_id_key rename to person_ban_person_id_key;
alter table person_ban rename constraint user_ban_user_id_fkey to person_ban_person_id_fkey;
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