mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-12-05 10:41:24 +00:00
221 lines
5.3 KiB
MySQL
221 lines
5.3 KiB
MySQL
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-- Adding community name, hot_rank, to comment_view, user_mention_view, and subscribed to comment_view
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-- Rebuild the comment view
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drop view reply_view;
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drop view user_mention_view;
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drop view user_mention_mview;
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drop view comment_view;
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drop view comment_mview;
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drop materialized view comment_aggregates_mview;
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drop view comment_aggregates_view;
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-- reply and comment view
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create view comment_aggregates_view as
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select
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c.*,
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(select community_id from post p where p.id = c.post_id),
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(select co.name from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_name,
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(select u.banned from user_ u where c.creator_id = u.id) as banned,
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(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,
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(select name from user_ where c.creator_id = user_.id) as creator_name,
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(select avatar from user_ where c.creator_id = user_.id) as creator_avatar,
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coalesce(sum(cl.score), 0) as score,
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count (case when cl.score = 1 then 1 else null end) as upvotes,
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count (case when cl.score = -1 then 1 else null end) as downvotes,
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hot_rank(coalesce(sum(cl.score) , 0), c.published) as hot_rank
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from comment c
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left join comment_like cl on c.id = cl.comment_id
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group by c.id;
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create materialized view comment_aggregates_mview as select * from comment_aggregates_view;
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create unique index idx_comment_aggregates_mview_id on comment_aggregates_mview (id);
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create view comment_view as
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with all_comment as
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(
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select
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ca.*
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from comment_aggregates_view ca
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)
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select
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ac.*,
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u.id as user_id,
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coalesce(cl.score, 0) as my_vote,
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(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.community_id = cf.community_id) as subscribed,
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(select cs.id::bool from comment_saved cs where u.id = cs.user_id and cs.comment_id = ac.id) as saved
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from user_ u
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cross join all_comment ac
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left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
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union all
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select
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ac.*,
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null as user_id,
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null as my_vote,
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null as subscribed,
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null as saved
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from all_comment ac
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;
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create view comment_mview as
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with all_comment as
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(
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select
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ca.*
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from comment_aggregates_mview ca
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)
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select
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ac.*,
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u.id as user_id,
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coalesce(cl.score, 0) as my_vote,
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(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.community_id = cf.community_id) as subscribed,
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(select cs.id::bool from comment_saved cs where u.id = cs.user_id and cs.comment_id = ac.id) as saved
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from user_ u
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cross join all_comment ac
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left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
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union all
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select
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ac.*,
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null as user_id,
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null as my_vote,
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null as subscribed,
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null as saved
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from all_comment ac
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;
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-- Do the reply_view referencing the comment_mview
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create view reply_view as
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with closereply as (
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select
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c2.id,
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c2.creator_id as sender_id,
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c.creator_id as recipient_id
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from comment c
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inner join comment c2 on c.id = c2.parent_id
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where c2.creator_id != c.creator_id
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-- Do union where post is null
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union
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select
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c.id,
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c.creator_id as sender_id,
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p.creator_id as recipient_id
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from comment c, post p
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where c.post_id = p.id and c.parent_id is null and c.creator_id != p.creator_id
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)
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select cv.*,
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closereply.recipient_id
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from comment_mview cv, closereply
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where closereply.id = cv.id
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;
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-- user mention
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create view user_mention_view as
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select
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c.id,
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um.id as user_mention_id,
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c.creator_id,
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c.post_id,
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c.parent_id,
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c.content,
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c.removed,
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um.read,
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c.published,
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c.updated,
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c.deleted,
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c.community_id,
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c.community_name,
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c.banned,
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c.banned_from_community,
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c.creator_name,
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c.creator_avatar,
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c.score,
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c.upvotes,
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c.downvotes,
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c.hot_rank,
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c.user_id,
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c.my_vote,
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c.saved,
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um.recipient_id
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from user_mention um, comment_view c
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where um.comment_id = c.id;
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create view user_mention_mview as
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with all_comment as
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(
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select
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ca.*
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from comment_aggregates_mview ca
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)
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select
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ac.id,
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um.id as user_mention_id,
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ac.creator_id,
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ac.post_id,
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ac.parent_id,
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ac.content,
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ac.removed,
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um.read,
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ac.published,
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ac.updated,
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ac.deleted,
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ac.community_id,
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ac.community_name,
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ac.banned,
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ac.banned_from_community,
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ac.creator_name,
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ac.creator_avatar,
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ac.score,
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ac.upvotes,
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ac.downvotes,
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ac.hot_rank,
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u.id as user_id,
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coalesce(cl.score, 0) as my_vote,
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(select cs.id::bool from comment_saved cs where u.id = cs.user_id and cs.comment_id = ac.id) as saved,
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um.recipient_id
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from user_ u
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cross join all_comment ac
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left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
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left join user_mention um on um.comment_id = ac.id
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union all
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select
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ac.id,
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um.id as user_mention_id,
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ac.creator_id,
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ac.post_id,
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ac.parent_id,
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ac.content,
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ac.removed,
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um.read,
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ac.published,
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ac.updated,
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ac.deleted,
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ac.community_id,
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ac.community_name,
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ac.banned,
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ac.banned_from_community,
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ac.creator_name,
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ac.creator_avatar,
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ac.score,
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ac.upvotes,
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ac.downvotes,
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ac.hot_rank,
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null as user_id,
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null as my_vote,
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null as saved,
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um.recipient_id
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from all_comment ac
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left join user_mention um on um.comment_id = ac.id
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;
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