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create view community_view as
with all_community as
(
select *,
(select name from user_ u where c.creator_id = u.id) as creator_name,
(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
from community c
)
select
ac.*,
u.id as user_id,
cf.id::boolean as subscribed,
u.admin or (select cm.id::bool from community_moderator cm where u.id = cm.user_id and cm.community_id = ac.id) as am_mod
from user_ u
cross join all_community ac
left join community_follower cf on u.id = cf.user_id and ac.id = cf.community_id
union all
select
ac.*,
null as user_id,
null as subscribed,
null as am_mod
from all_community ac
;
create view community_moderator_view as
select *,
(select name from user_ u where cm.user_id = u.id) as user_name,
(select name from community c where cm.community_id = c.id) as community_name
from community_moderator cm;
create view community_follower_view as
select *,
(select name from user_ u where cf.user_id = u.id) as user_name,
(select name from community c where cf.community_id = c.id) as community_name
from community_follower cf;
create view community_user_ban_view as
select *,
(select name from user_ u where cm.user_id = u.id) as user_name,
(select name from community c where cm.community_id = c.id) as community_name
from community_user_ban cm;
create view site_view as
select *,
(select name from user_ u where s.creator_id = u.id) as creator_name,
(select count(*) from user_) as number_of_users,
(select count(*) from post) as number_of_posts,
(select count(*) from comment) as number_of_comments
from site s;
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