Merge branch 'master' into migrate-apub-lib

14 files changed, 1713 insertions, 126 deletions

diff --git a/server/migrations/2020-06-30-135809_remove_mat_views/down.sql b/server/migrations/2020-06-30-135809_remove_mat_views/down.sql
new file mode 100644
index 00000000..5f72b76d
--- /dev/null
+++ b/server/migrations/2020-06-30-135809_remove_mat_views/down.sql
@@ -0,0 +1,535 @@
+-- Dropping all the fast tables
+drop table user_fast;
+drop view post_fast_view;
+drop table post_aggregates_fast;
+drop view community_fast_view;
+drop table community_aggregates_fast;
+drop view reply_fast_view;
+drop view user_mention_fast_view;
+drop view comment_fast_view;
+drop table comment_aggregates_fast;
+
+-- Re-adding all the triggers, functions, and mviews
+
+-- private message
+create materialized view private_message_mview as select * from private_message_view;
+
+create unique index idx_private_message_mview_id on private_message_mview (id);
+
+
+-- Create the triggers
+create or replace function refresh_private_message()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently private_message_mview;
+  return null;
+end $$;
+
+create trigger refresh_private_message
+after insert or update or delete or truncate
+on private_message
+for each statement
+execute procedure refresh_private_message();
+
+-- user 
+create or replace function refresh_user()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently user_mview;
+  refresh materialized view concurrently comment_aggregates_mview; -- cause of bans
+  refresh materialized view concurrently post_aggregates_mview;
+  return null;
+end $$;
+
+drop trigger refresh_user on user_;
+create trigger refresh_user
+after insert or update or delete or truncate
+on user_
+for each statement
+execute procedure refresh_user();
+drop view user_view cascade;
+
+create view user_view as 
+select 
+u.id,
+u.actor_id,
+u.name,
+u.avatar,
+u.email,
+u.matrix_user_id,
+u.bio,
+u.local,
+u.admin,
+u.banned,
+u.show_avatars,
+u.send_notifications_to_email,
+u.published,
+(select count(*) from post p where p.creator_id = u.id) as number_of_posts,
+(select coalesce(sum(score), 0) from post p, post_like pl where u.id = p.creator_id and p.id = pl.post_id) as post_score,
+(select count(*) from comment c where c.creator_id = u.id) as number_of_comments,
+(select coalesce(sum(score), 0) from comment c, comment_like cl where u.id = c.creator_id and c.id = cl.comment_id) as comment_score
+from user_ u;
+
+create materialized view user_mview as select * from user_view;
+
+create unique index idx_user_mview_id on user_mview (id);
+
+-- community
+drop trigger refresh_community on community;
+create trigger refresh_community
+after insert or update or delete or truncate
+on community
+for each statement
+execute procedure refresh_community();
+
+create or replace function refresh_community()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently post_aggregates_mview;
+  refresh materialized view concurrently community_aggregates_mview; 
+  refresh materialized view concurrently user_mview;
+  return null;
+end $$;
+
+drop view community_aggregates_view cascade;
+create view community_aggregates_view as
+-- Now that there's public and private keys, you have to be explicit here
+select c.id,
+c.name,
+c.title,
+c.description,
+c.category_id,
+c.creator_id,
+c.removed,
+c.published,
+c.updated,
+c.deleted,
+c.nsfw,
+c.actor_id,
+c.local,
+c.last_refreshed_at,
+(select actor_id from user_ u where c.creator_id = u.id) as creator_actor_id,
+(select local from user_ u where c.creator_id = u.id) as creator_local,
+(select name from user_ u where c.creator_id = u.id) as creator_name,
+(select avatar from user_ u where c.creator_id = u.id) as creator_avatar,
+(select name from category ct where c.category_id = ct.id) as category_name,
+(select count(*) from community_follower cf where cf.community_id = c.id) as number_of_subscribers,
+(select count(*) from post p where p.community_id = c.id) as number_of_posts,
+(select count(*) from comment co, post p where c.id = p.community_id and p.id = co.post_id) as number_of_comments,
+hot_rank((select count(*) from community_follower cf where cf.community_id = c.id), c.published) as hot_rank
+from community c;
+
+create materialized view community_aggregates_mview as select * from community_aggregates_view;
+
+create unique index idx_community_aggregates_mview_id on community_aggregates_mview (id);
+
+create view community_view as
+with all_community as
+(
+  select
+  ca.*
+  from community_aggregates_view ca
+)
+
+select
+ac.*,
+u.id as user_id,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.id = cf.community_id) as subscribed
+from user_ u
+cross join all_community ac
+
+union all
+
+select 
+ac.*,
+null as user_id,
+null as subscribed
+from all_community ac
+;
+
+create view community_mview as
+with all_community as
+(
+  select
+  ca.*
+  from community_aggregates_mview ca
+)
+
+select
+ac.*,
+u.id as user_id,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.id = cf.community_id) as subscribed
+from user_ u
+cross join all_community ac
+
+union all
+
+select 
+ac.*,
+null as user_id,
+null as subscribed
+from all_community ac
+;
+-- Post
+drop view post_view;
+drop view post_aggregates_view;
+
+-- regen post view
+create view post_aggregates_view as
+select        
+p.*,
+(select u.banned from user_ u where p.creator_id = u.id) as banned,
+(select cb.id::bool from community_user_ban cb where p.creator_id = cb.user_id and p.community_id = cb.community_id) as banned_from_community,
+(select actor_id from user_ where p.creator_id = user_.id) as creator_actor_id,
+(select local from user_ where p.creator_id = user_.id) as creator_local,
+(select name from user_ where p.creator_id = user_.id) as creator_name,
+(select avatar from user_ where p.creator_id = user_.id) as creator_avatar,
+(select actor_id from community where p.community_id = community.id) as community_actor_id,
+(select local from community where p.community_id = community.id) as community_local,
+(select name from community where p.community_id = community.id) as community_name,
+(select removed from community c where p.community_id = c.id) as community_removed,
+(select deleted from community c where p.community_id = c.id) as community_deleted,
+(select nsfw from community c where p.community_id = c.id) as community_nsfw,
+(select count(*) from comment where comment.post_id = p.id) as number_of_comments,
+coalesce(sum(pl.score), 0) as score,
+count (case when pl.score = 1 then 1 else null end) as upvotes,
+count (case when pl.score = -1 then 1 else null end) as downvotes,
+hot_rank(coalesce(sum(pl.score) , 0), 
+  (
+    case when (p.published < ('now'::timestamp - '1 month'::interval)) then p.published -- Prevents necro-bumps
+    else greatest(c.recent_comment_time, p.published)
+    end
+  )
+) as hot_rank,
+(
+  case when (p.published < ('now'::timestamp - '1 month'::interval)) then p.published -- Prevents necro-bumps
+  else greatest(c.recent_comment_time, p.published)
+  end
+) as newest_activity_time
+from post p
+left join post_like pl on p.id = pl.post_id
+left join (
+  select post_id, 
+  max(published) as recent_comment_time
+  from comment
+  group by 1
+) c on p.id = c.post_id
+group by p.id, c.recent_comment_time;
+
+create materialized view post_aggregates_mview as select * from post_aggregates_view;
+
+create unique index idx_post_aggregates_mview_id on post_aggregates_mview (id);
+
+create view post_view as 
+with all_post as (
+  select
+  pa.*
+  from post_aggregates_view pa
+)
+select
+ap.*,
+u.id as user_id,
+coalesce(pl.score, 0) as my_vote,
+(select cf.id::bool from community_follower cf where u.id = cf.user_id and cf.community_id = ap.community_id) as subscribed,
+(select pr.id::bool from post_read pr where u.id = pr.user_id and pr.post_id = ap.id) as read,
+(select ps.id::bool from post_saved ps where u.id = ps.user_id and ps.post_id = ap.id) as saved
+from user_ u
+cross join all_post ap
+left join post_like pl on u.id = pl.user_id and ap.id = pl.post_id
+
+union all
+
+select 
+ap.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from all_post ap
+;
+
+create view post_mview as 
+with all_post as (
+  select
+  pa.*
+  from post_aggregates_mview pa
+)
+select
+ap.*,
+u.id as user_id,
+coalesce(pl.score, 0) as my_vote,
+(select cf.id::bool from community_follower cf where u.id = cf.user_id and cf.community_id = ap.community_id) as subscribed,
+(select pr.id::bool from post_read pr where u.id = pr.user_id and pr.post_id = ap.id) as read,
+(select ps.id::bool from post_saved ps where u.id = ps.user_id and ps.post_id = ap.id) as saved
+from user_ u
+cross join all_post ap
+left join post_like pl on u.id = pl.user_id and ap.id = pl.post_id
+
+union all
+
+select 
+ap.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from all_post ap
+;
+
+drop trigger refresh_post on post;
+create trigger refresh_post
+after insert or update or delete or truncate
+on post
+for each statement
+execute procedure refresh_post();
+
+create or replace function refresh_post()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently post_aggregates_mview;
+  refresh materialized view concurrently user_mview;
+  return null;
+end $$;
+
+
+-- User mention, comment, reply
+drop view user_mention_view;
+drop view comment_view;
+drop view comment_aggregates_view;
+
+-- reply and comment view
+create view comment_aggregates_view as
+select        
+c.*,
+(select community_id from post p where p.id = c.post_id),
+(select co.actor_id from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_actor_id,
+(select co.local from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_local,
+(select co.name from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_name,
+(select u.banned from user_ u where c.creator_id = u.id) as banned,
+(select cb.id::bool from community_user_ban cb, post p where c.creator_id = cb.user_id and p.id = c.post_id and p.community_id = cb.community_id) as banned_from_community,
+(select actor_id from user_ where c.creator_id = user_.id) as creator_actor_id,
+(select local from user_ where c.creator_id = user_.id) as creator_local,
+(select name from user_ where c.creator_id = user_.id) as creator_name,
+(select avatar from user_ where c.creator_id = user_.id) as creator_avatar,
+coalesce(sum(cl.score), 0) as score,
+count (case when cl.score = 1 then 1 else null end) as upvotes,
+count (case when cl.score = -1 then 1 else null end) as downvotes,
+hot_rank(coalesce(sum(cl.score) , 0), c.published) as hot_rank
+from comment c
+left join comment_like cl on c.id = cl.comment_id
+group by c.id;
+
+create materialized view comment_aggregates_mview as select * from comment_aggregates_view;
+
+create unique index idx_comment_aggregates_mview_id on comment_aggregates_mview (id);
+
+create view comment_view as
+with all_comment as
+(
+  select
+  ca.*
+  from comment_aggregates_view ca
+)
+
+select
+ac.*,
+u.id as user_id,
+coalesce(cl.score, 0) as my_vote,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.community_id = cf.community_id) as subscribed,
+(select cs.id::bool from comment_saved cs where u.id = cs.user_id and cs.comment_id = ac.id) as saved
+from user_ u
+cross join all_comment ac
+left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
+
+union all
+
+select 
+    ac.*,
+    null as user_id, 
+    null as my_vote,
+    null as subscribed,
+    null as saved
+from all_comment ac
+;
+
+create view comment_mview as
+with all_comment as
+(
+  select
+  ca.*
+  from comment_aggregates_mview ca
+)
+
+select
+ac.*,
+u.id as user_id,
+coalesce(cl.score, 0) as my_vote,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.community_id = cf.community_id) as subscribed,
+(select cs.id::bool from comment_saved cs where u.id = cs.user_id and cs.comment_id = ac.id) as saved
+from user_ u
+cross join all_comment ac
+left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
+
+union all
+
+select 
+    ac.*,
+    null as user_id, 
+    null as my_vote,
+    null as subscribed,
+    null as saved
+from all_comment ac
+;
+
+-- Do the reply_view referencing the comment_mview
+create view reply_view as 
+with closereply as (
+    select 
+    c2.id, 
+    c2.creator_id as sender_id, 
+    c.creator_id as recipient_id
+    from comment c
+    inner join comment c2 on c.id = c2.parent_id
+    where c2.creator_id != c.creator_id
+    -- Do union where post is null
+    union
+    select
+    c.id,
+    c.creator_id as sender_id,
+    p.creator_id as recipient_id
+    from comment c, post p
+    where c.post_id = p.id and c.parent_id is null and c.creator_id != p.creator_id
+)
+select cv.*,
+closereply.recipient_id
+from comment_mview cv, closereply
+where closereply.id = cv.id
+;
+
+-- user mention
+create view user_mention_view as
+select 
+    c.id,
+    um.id as user_mention_id,
+    c.creator_id,
+    c.creator_actor_id,
+    c.creator_local,
+    c.post_id,
+    c.parent_id,
+    c.content,
+    c.removed,
+    um.read,
+    c.published,
+    c.updated,
+    c.deleted,
+    c.community_id,
+    c.community_actor_id,
+    c.community_local,
+    c.community_name,
+    c.banned,
+    c.banned_from_community,
+    c.creator_name,
+    c.creator_avatar,
+    c.score,
+    c.upvotes,
+    c.downvotes,
+    c.hot_rank,
+    c.user_id,
+    c.my_vote,
+    c.saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from user_mention um, comment_view c
+where um.comment_id = c.id;
+
+
+create view user_mention_mview as 
+with all_comment as
+(
+  select
+  ca.*
+  from comment_aggregates_mview ca
+)
+
+select
+    ac.id,
+    um.id as user_mention_id,
+    ac.creator_id,
+    ac.creator_actor_id,
+    ac.creator_local,
+    ac.post_id,
+    ac.parent_id,
+    ac.content,
+    ac.removed,
+    um.read,
+    ac.published,
+    ac.updated,
+    ac.deleted,
+    ac.community_id,
+    ac.community_actor_id,
+    ac.community_local,
+    ac.community_name,
+    ac.banned,
+    ac.banned_from_community,
+    ac.creator_name,
+    ac.creator_avatar,
+    ac.score,
+    ac.upvotes,
+    ac.downvotes,
+    ac.hot_rank,
+    u.id as user_id,
+    coalesce(cl.score, 0) as my_vote,
+    (select cs.id::bool from comment_saved cs where u.id = cs.user_id and cs.comment_id = ac.id) as saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from user_ u
+cross join all_comment ac
+left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
+left join user_mention um on um.comment_id = ac.id
+
+union all
+
+select 
+    ac.id,
+    um.id as user_mention_id,
+    ac.creator_id,
+    ac.creator_actor_id,
+    ac.creator_local,
+    ac.post_id,
+    ac.parent_id,
+    ac.content,
+    ac.removed,
+    um.read,
+    ac.published,
+    ac.updated,
+    ac.deleted,
+    ac.community_id,
+    ac.community_actor_id,
+    ac.community_local,
+    ac.community_name,
+    ac.banned,
+    ac.banned_from_community,
+    ac.creator_name,
+    ac.creator_avatar,
+    ac.score,
+    ac.upvotes,
+    ac.downvotes,
+    ac.hot_rank,
+    null as user_id, 
+    null as my_vote,
+    null as saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from all_comment ac
+left join user_mention um on um.comment_id = ac.id
+;
+
diff --git a/server/migrations/2020-06-30-135809_remove_mat_views/up.sql b/server/migrations/2020-06-30-135809_remove_mat_views/up.sql
new file mode 100644
index 00000000..bd792a8b
--- /dev/null
+++ b/server/migrations/2020-06-30-135809_remove_mat_views/up.sql
@@ -0,0 +1,939 @@
+-- Drop the mviews
+drop view post_mview;
+drop materialized view user_mview;
+drop view community_mview;
+drop materialized view private_message_mview;
+drop view user_mention_mview;
+drop view reply_view;
+drop view comment_mview;
+drop materialized view post_aggregates_mview;
+drop materialized view community_aggregates_mview;
+drop materialized view comment_aggregates_mview;
+drop trigger refresh_private_message on private_message;
+
+-- User
+drop view user_view;
+create view user_view as
+select 
+	u.id,
+  u.actor_id,
+	u.name,
+	u.avatar,
+	u.email,
+	u.matrix_user_id,
+  u.bio,
+  u.local,
+	u.admin,
+	u.banned,
+	u.show_avatars,
+	u.send_notifications_to_email,
+	u.published,
+	coalesce(pd.posts, 0) as number_of_posts,
+	coalesce(pd.score, 0) as post_score,
+	coalesce(cd.comments, 0) as number_of_comments,
+	coalesce(cd.score, 0) as comment_score
+from user_ u
+left join (
+    select
+        p.creator_id as creator_id,
+        count(distinct p.id) as posts,
+        sum(pl.score) as score
+    from post p
+    join post_like pl on p.id = pl.post_id
+    group by p.creator_id
+) pd on u.id = pd.creator_id
+left join (
+    select
+        c.creator_id,
+        count(distinct c.id) as comments,
+        sum(cl.score) as score
+    from comment c
+    join comment_like cl on c.id = cl.comment_id
+    group by c.creator_id
+) cd on u.id = cd.creator_id;
+
+
+create table user_fast as select * from user_view;
+alter table user_fast add primary key (id);
+
+drop trigger refresh_user on user_;
+
+create trigger refresh_user
+after insert or update or delete
+on user_
+for each row
+execute procedure refresh_user();
+
+-- Sample insert 
+-- insert into user_(name, password_encrypted) values ('test_name', 'bleh');
+-- Sample delete
+-- delete from user_ where name like 'test_name';
+-- Sample update
+-- update user_ set avatar = 'hai'  where name like 'test_name';
+create or replace function refresh_user()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from user_fast where id = OLD.id;
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from user_fast where id = OLD.id;
+    insert into user_fast select * from user_view where id = NEW.id;
+    
+    -- Refresh post_fast, cause of user info changes
+    delete from post_aggregates_fast where creator_id = NEW.id;
+    insert into post_aggregates_fast select * from post_aggregates_view where creator_id = NEW.id;
+
+    delete from comment_aggregates_fast where creator_id = NEW.id;
+    insert into comment_aggregates_fast select * from comment_aggregates_view where creator_id = NEW.id;
+
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into user_fast select * from user_view where id = NEW.id;
+  END IF;
+
+  return null;
+end $$;
+
+-- Post
+-- Redoing the views : Credit eiknat
+drop view post_view;
+drop view post_aggregates_view;
+
+create view post_aggregates_view as
+select
+	p.*,
+	-- creator details
+	u.actor_id as creator_actor_id,
+	u."local" as creator_local,
+	u."name" as creator_name,
+	u.avatar as creator_avatar,
+  u.banned as banned,
+  cb.id::bool as banned_from_community,
+	-- community details
+	c.actor_id as community_actor_id,
+	c."local" as community_local,
+	c."name" as community_name,
+	c.removed as community_removed,
+	c.deleted as community_deleted,
+	c.nsfw as community_nsfw,
+	-- post score data/comment count
+	coalesce(ct.comments, 0) as number_of_comments,
+	coalesce(pl.score, 0) as score,
+	coalesce(pl.upvotes, 0) as upvotes,
+	coalesce(pl.downvotes, 0) as downvotes,
+	hot_rank(
+		coalesce(pl.score , 0), (
+			case
+				when (p.published < ('now'::timestamp - '1 month'::interval))
+				then p.published
+				else greatest(ct.recent_comment_time, p.published)
+			end
+		)
+	) as hot_rank,
+	(
+		case
+			when (p.published < ('now'::timestamp - '1 month'::interval))
+			then p.published
+			else greatest(ct.recent_comment_time, p.published)
+		end
+	) as newest_activity_time
+from post p
+left join user_ u on p.creator_id = u.id
+left join community_user_ban cb on p.creator_id = cb.user_id and p.community_id = cb.community_id
+left join community c on p.community_id = c.id
+left join (
+	select
+		post_id,
+		count(*) as comments,
+		max(published) as recent_comment_time
+	from comment
+	group by post_id
+) ct on ct.post_id = p.id
+left join (
+	select
+		post_id,
+		sum(score) as score,
+		sum(score) filter (where score = 1) as upvotes,
+		-sum(score) filter (where score = -1) as downvotes
+	from post_like
+	group by post_id
+) pl on pl.post_id = p.id
+order by p.id;
+
+create view post_view as
+select
+	pav.*,
+	us.id as user_id,
+	us.user_vote as my_vote,
+	us.is_subbed::bool as subscribed,
+	us.is_read::bool as read,
+	us.is_saved::bool as saved
+from post_aggregates_view pav
+cross join lateral (
+	select
+		u.id,
+		coalesce(cf.community_id, 0) as is_subbed,
+		coalesce(pr.post_id, 0) as is_read,
+		coalesce(ps.post_id, 0) as is_saved,
+		coalesce(pl.score, 0) as user_vote
+	from user_ u
+	left join community_user_ban cb on u.id = cb.user_id and cb.community_id = pav.community_id
+	left join community_follower cf on u.id = cf.user_id and cf.community_id = pav.community_id
+	left join post_read pr on u.id = pr.user_id and pr.post_id = pav.id
+	left join post_saved ps on u.id = ps.user_id and ps.post_id = pav.id
+	left join post_like pl on u.id = pl.user_id and pav.id = pl.post_id
+) as us
+
+union all
+
+select 
+pav.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from post_aggregates_view pav;
+
+-- The post fast table
+create table post_aggregates_fast as select * from post_aggregates_view;
+alter table post_aggregates_fast add primary key (id);
+
+-- For the hot rank resorting
+create index idx_post_aggregates_fast_hot_rank_published on post_aggregates_fast (hot_rank desc, published desc);
+
+create view post_fast_view as 
+select
+	pav.*,
+	us.id as user_id,
+	us.user_vote as my_vote,
+	us.is_subbed::bool as subscribed,
+	us.is_read::bool as read,
+	us.is_saved::bool as saved
+from post_aggregates_fast pav
+cross join lateral (
+	select
+		u.id,
+		coalesce(cf.community_id, 0) as is_subbed,
+		coalesce(pr.post_id, 0) as is_read,
+		coalesce(ps.post_id, 0) as is_saved,
+		coalesce(pl.score, 0) as user_vote
+	from user_ u
+	left join community_user_ban cb on u.id = cb.user_id and cb.community_id = pav.community_id
+	left join community_follower cf on u.id = cf.user_id and cf.community_id = pav.community_id
+	left join post_read pr on u.id = pr.user_id and pr.post_id = pav.id
+	left join post_saved ps on u.id = ps.user_id and ps.post_id = pav.id
+	left join post_like pl on u.id = pl.user_id and pav.id = pl.post_id
+) as us
+
+union all
+
+select 
+pav.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from post_aggregates_fast pav;
+
+drop trigger refresh_post on post;
+
+create trigger refresh_post
+after insert or update or delete
+on post
+for each row
+execute procedure refresh_post();
+
+-- Sample select
+-- select id, name from post_fast_view where name like 'test_post' and user_id is null;
+-- Sample insert 
+-- insert into post(name, creator_id, community_id) values ('test_post', 2, 2);
+-- Sample delete
+-- delete from post where name like 'test_post';
+-- Sample update
+-- update post set community_id = 4  where name like 'test_post';
+create or replace function refresh_post()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from post_aggregates_fast where id = OLD.id;
+
+    -- Update community number of posts
+    update community_aggregates_fast set number_of_posts = number_of_posts - 1 where id = OLD.community_id;
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from post_aggregates_fast where id = OLD.id;
+    insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.id;
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.id;
+
+    -- Update that users number of posts, post score
+    delete from user_fast where id = NEW.creator_id;
+    insert into user_fast select * from user_view where id = NEW.creator_id;
+  
+    -- Update community number of posts
+    update community_aggregates_fast set number_of_posts = number_of_posts + 1 where id = NEW.community_id;
+
+    -- Update the hot rank on the post table
+    -- TODO this might not correctly update it, using a 1 week interval
+    update post_aggregates_fast as paf
+    set hot_rank = pav.hot_rank 
+    from post_aggregates_view as pav
+    where paf.id = pav.id  and (pav.published > ('now'::timestamp - '1 week'::interval));
+  END IF;
+
+  return null;
+end $$;
+
+-- Community
+-- Redoing the views : Credit eiknat
+drop view community_moderator_view;
+drop view community_follower_view;
+drop view community_user_ban_view;
+drop view community_view;
+drop view community_aggregates_view;
+
+create view community_aggregates_view as
+select 
+    c.id,
+    c.name,
+    c.title,
+    c.description,
+    c.category_id,
+    c.creator_id,
+    c.removed,
+    c.published,
+    c.updated,
+    c.deleted,
+    c.nsfw,
+    c.actor_id,
+    c.local,
+    c.last_refreshed_at,
+    u.actor_id as creator_actor_id,
+    u.local as creator_local,
+    u.name as creator_name,
+    u.avatar as creator_avatar,
+    cat.name as category_name,
+    coalesce(cf.subs, 0) as number_of_subscribers,
+    coalesce(cd.posts, 0) as number_of_posts,
+    coalesce(cd.comments, 0) as number_of_comments,
+    hot_rank(cf.subs, c.published) as hot_rank
+from community c
+left join user_ u on c.creator_id = u.id
+left join category cat on c.category_id = cat.id
+left join (
+    select
+        p.community_id,
+        count(distinct p.id) as posts,
+        count(distinct ct.id) as comments
+    from post p
+    join comment ct on p.id = ct.post_id
+    group by p.community_id
+) cd on cd.community_id = c.id
+left join (
+    select
+        community_id,
+        count(*) as subs 
+    from community_follower
+    group by community_id 
+) cf on cf.community_id = c.id;
+
+create view community_view as
+select
+    cv.*,
+    us.user as user_id,
+    us.is_subbed::bool as subscribed
+from community_aggregates_view cv
+cross join lateral (
+	select
+		u.id as user,
+		coalesce(cf.community_id, 0) as is_subbed
+	from user_ u
+	left join community_follower cf on u.id = cf.user_id and cf.community_id = cv.id
+) as us
+
+union all
+
+select 
+    cv.*,
+    null as user_id,
+    null as subscribed
+from community_aggregates_view cv;
+
+create view community_moderator_view as
+select
+    cm.*,
+    u.actor_id as user_actor_id,
+    u.local as user_local,
+    u.name as user_name,
+    u.avatar as avatar,
+    c.actor_id as community_actor_id,
+    c.local as community_local,
+    c.name as community_name
+from community_moderator cm
+left join user_ u on cm.user_id = u.id
+left join community c on cm.community_id = c.id;
+
+create view community_follower_view as
+select
+    cf.*,
+    u.actor_id as user_actor_id,
+    u.local as user_local,
+    u.name as user_name,
+    u.avatar as avatar,
+    c.actor_id as community_actor_id,
+    c.local as community_local,
+    c.name as community_name
+from community_follower cf
+left join user_ u on cf.user_id = u.id
+left join community c on cf.community_id = c.id;
+
+create view community_user_ban_view as
+select
+    cb.*,
+    u.actor_id as user_actor_id,
+    u.local as user_local,
+    u.name as user_name,
+    u.avatar as avatar,
+    c.actor_id as community_actor_id,
+    c.local as community_local,
+    c.name as community_name
+from community_user_ban cb
+left join user_ u on cb.user_id = u.id
+left join community c on cb.community_id = c.id;
+
+-- The community fast table
+
+create table community_aggregates_fast as select * from community_aggregates_view;
+alter table community_aggregates_fast add primary key (id);
+
+create view community_fast_view as
+select
+ac.*,
+u.id as user_id,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.id = cf.community_id) as subscribed
+from user_ u
+cross join (
+  select
+  ca.*
+  from community_aggregates_fast ca
+) ac
+
+union all
+
+select 
+caf.*,
+null as user_id,
+null as subscribed
+from community_aggregates_fast caf;
+
+drop trigger refresh_community on community;
+
+create trigger refresh_community
+after insert or update or delete
+on community
+for each row
+execute procedure refresh_community();
+
+-- Sample select
+-- select * from community_fast_view where name like 'test_community_name' and user_id is null;
+-- Sample insert 
+-- insert into community(name, title, category_id, creator_id) values ('test_community_name', 'test_community_title', 1, 2);
+-- Sample delete
+-- delete from community where name like 'test_community_name';
+-- Sample update
+-- update community set title = 'test_community_title_2'  where name like 'test_community_name';
+create or replace function refresh_community()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from community_aggregates_fast where id = OLD.id;
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from community_aggregates_fast where id = OLD.id;
+    insert into community_aggregates_fast select * from community_aggregates_view where id = NEW.id;
+
+    -- Update user view due to owner changes
+    delete from user_fast where id = NEW.creator_id;
+    insert into user_fast select * from user_view where id = NEW.creator_id;
+    
+    -- Update post view due to community changes
+    delete from post_aggregates_fast where community_id = NEW.id;
+    insert into post_aggregates_fast select * from post_aggregates_view where community_id = NEW.id;
+
+  -- TODO make sure this shows up in the users page ?
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into community_aggregates_fast select * from community_aggregates_view where id = NEW.id;
+  END IF;
+
+  return null;
+end $$;
+
+-- Comment
+
+drop view user_mention_view;
+drop view comment_view;
+drop view comment_aggregates_view;
+
+create view comment_aggregates_view as 
+select
+	ct.*,
+	-- community details
+	p.community_id,
+	c.actor_id as community_actor_id,
+	c."local" as community_local,
+	c."name" as community_name,
+	-- creator details
+	u.banned as banned,
+  coalesce(cb