lemmy/migrations/2021-03-09-171136_split_user_table_2/up.sql

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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,
person_id int references person on update cascade on delete cascade not null,
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password_encrypted text not null,
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email text unique,
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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 (person_id)
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);
-- Copy the local users over to the new table
insert into local_user
(
person_id,
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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 column user_id to person_id;
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alter table person_ban rename constraint user_ban_user_id_fkey to person_ban_person_id_fkey;
-- comment_like
alter table comment_like rename column user_id to person_id;
alter index idx_comment_like_user rename to idx_comment_like_person;
alter table comment_like rename constraint comment_like_comment_id_user_id_key to comment_like_comment_id_person_id_key;
alter table comment_like rename constraint comment_like_user_id_fkey to comment_like_person_id_fkey;
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-- comment_saved
alter table comment_saved rename column user_id to person_id;
alter table comment_saved rename constraint comment_saved_comment_id_user_id_key to comment_saved_comment_id_person_id_key;
alter table comment_saved rename constraint comment_saved_user_id_fkey to comment_saved_person_id_fkey;
-- community_follower
alter table community_follower rename column user_id to person_id;
alter table community_follower rename constraint community_follower_community_id_user_id_key to community_follower_community_id_person_id_key;
alter table community_follower rename constraint community_follower_user_id_fkey to community_follower_person_id_fkey;
-- community_moderator
alter table community_moderator rename column user_id to person_id;
alter table community_moderator rename constraint community_moderator_community_id_user_id_key to community_moderator_community_id_person_id_key;
alter table community_moderator rename constraint community_moderator_user_id_fkey to community_moderator_person_id_fkey;
-- community_user_ban
alter table community_user_ban rename to community_person_ban;
alter sequence community_user_ban_id_seq rename to community_person_ban_id_seq;
alter table community_person_ban rename column user_id to person_id;
alter table community_person_ban rename constraint community_user_ban_pkey to community_person_ban_pkey;
alter table community_person_ban rename constraint community_user_ban_community_id_fkey to community_person_ban_community_id_fkey;
alter table community_person_ban rename constraint community_user_ban_community_id_user_id_key to community_person_ban_community_id_person_id_key;
alter table community_person_ban rename constraint community_user_ban_user_id_fkey to community_person_ban_person_id_fkey;
-- mod_add
alter table mod_add rename column mod_user_id to mod_person_id;
alter table mod_add rename column other_user_id to other_person_id;
alter table mod_add rename constraint mod_add_mod_user_id_fkey to mod_add_mod_person_id_fkey;
alter table mod_add rename constraint mod_add_other_user_id_fkey to mod_add_other_person_id_fkey;
-- mod_add_community
alter table mod_add_community rename column mod_user_id to mod_person_id;
alter table mod_add_community rename column other_user_id to other_person_id;
alter table mod_add_community rename constraint mod_add_community_mod_user_id_fkey to mod_add_community_mod_person_id_fkey;
alter table mod_add_community rename constraint mod_add_community_other_user_id_fkey to mod_add_community_other_person_id_fkey;
-- mod_ban
alter table mod_ban rename column mod_user_id to mod_person_id;
alter table mod_ban rename column other_user_id to other_person_id;
alter table mod_ban rename constraint mod_ban_mod_user_id_fkey to mod_ban_mod_person_id_fkey;
alter table mod_ban rename constraint mod_ban_other_user_id_fkey to mod_ban_other_person_id_fkey;
-- mod_ban_community
alter table mod_ban_from_community rename column mod_user_id to mod_person_id;
alter table mod_ban_from_community rename column other_user_id to other_person_id;
alter table mod_ban_from_community rename constraint mod_ban_from_community_mod_user_id_fkey to mod_ban_from_community_mod_person_id_fkey;
alter table mod_ban_from_community rename constraint mod_ban_from_community_other_user_id_fkey to mod_ban_from_community_other_person_id_fkey;
-- mod_lock_post
alter table mod_lock_post rename column mod_user_id to mod_person_id;
alter table mod_lock_post rename constraint mod_lock_post_mod_user_id_fkey to mod_lock_post_mod_person_id_fkey;
-- mod_remove_comment
alter table mod_remove_comment rename column mod_user_id to mod_person_id;
alter table mod_remove_comment rename constraint mod_remove_comment_mod_user_id_fkey to mod_remove_comment_mod_person_id_fkey;
-- mod_remove_community
alter table mod_remove_community rename column mod_user_id to mod_person_id;
alter table mod_remove_community rename constraint mod_remove_community_mod_user_id_fkey to mod_remove_community_mod_person_id_fkey;
-- mod_remove_post
alter table mod_remove_post rename column mod_user_id to mod_person_id;
alter table mod_remove_post rename constraint mod_remove_post_mod_user_id_fkey to mod_remove_post_mod_person_id_fkey;
-- mod_sticky_post
alter table mod_sticky_post rename column mod_user_id to mod_person_id;
alter table mod_sticky_post rename constraint mod_sticky_post_mod_user_id_fkey to mod_sticky_post_mod_person_id_fkey;
-- password_reset_request
delete from password_reset_request;
alter table password_reset_request drop column user_id;
alter table password_reset_request add column local_user_id integer not null references local_user(id) on update cascade on delete cascade;
-- post_like
alter table post_like rename column user_id to person_id;
alter index idx_post_like_user rename to idx_post_like_person;
alter table post_like rename constraint post_like_post_id_user_id_key to post_like_post_id_person_id_key;
alter table post_like rename constraint post_like_user_id_fkey to post_like_person_id_fkey;
-- post_read
alter table post_read rename column user_id to person_id;
alter table post_read rename constraint post_read_post_id_user_id_key to post_read_post_id_person_id_key;
alter table post_read rename constraint post_read_user_id_fkey to post_read_person_id_fkey;
-- post_saved
alter table post_saved rename column user_id to person_id;
alter table post_saved rename constraint post_saved_post_id_user_id_key to post_saved_post_id_person_id_key;
alter table post_saved rename constraint post_saved_user_id_fkey to post_saved_person_id_fkey;
-- redo site aggregates trigger
create or replace function site_aggregates_activity(i text) returns integer
language plpgsql
as $$
declare
count_ integer;
begin
select count(*)
into count_
from (
select c.creator_id from comment c
inner join person u on c.creator_id = u.id
where c.published > ('now'::timestamp - i::interval)
and u.local = true
union
select p.creator_id from post p
inner join person u on p.creator_id = u.id
where p.published > ('now'::timestamp - i::interval)
and u.local = true
) a;
return count_;
end;
$$;