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create view comment_view as
with all_comment as
(
select
c.*,
(select community_id from post p where p.id = c.post_id),
(select cb.id::bool from community_user_ban cb where c.creator_id = cb.user_id) as banned,
(select name from user_ where c.creator_id = user_.id) as creator_name,
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
from comment c
left join comment_like cl on c.id = cl.comment_id
group by c.id
)
select
ac.*,
u.id as user_id,
coalesce(cl.score, 0) as my_vote,
u.admin or (select cm.id::bool from community_moderator cm, post p where u.id = cm.user_id and ac.post_id = p.id and p.community_id = cm.community_id) as am_mod
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 am_mod
from all_comment ac
;
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