mirror of https://github.com/LemmyNet/lemmy.git
191 lines
4.1 KiB
SQL
191 lines
4.1 KiB
SQL
DROP VIEW community_view;
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DROP VIEW post_view;
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ALTER TABLE community
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DROP COLUMN nsfw;
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ALTER TABLE post
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DROP COLUMN nsfw;
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ALTER TABLE user_
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DROP COLUMN show_nsfw;
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-- the views
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CREATE VIEW community_view AS
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with all_community AS (
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SELECT
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*,
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(
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SELECT
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name
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FROM
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user_ u
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WHERE
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c.creator_id = u.id) AS creator_name,
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(
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SELECT
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name
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FROM
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category ct
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WHERE
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c.category_id = ct.id) AS category_name,
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(
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SELECT
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count(*)
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FROM
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community_follower cf
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WHERE
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cf.community_id = c.id) AS number_of_subscribers,
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(
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SELECT
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count(*)
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FROM
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post p
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WHERE
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p.community_id = c.id) AS number_of_posts,
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(
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SELECT
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count(*)
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FROM
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comment co,
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post p
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WHERE
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c.id = p.community_id
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AND p.id = co.post_id) AS number_of_comments,
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hot_rank ((
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SELECT
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count(*)
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FROM community_follower cf
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WHERE
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cf.community_id = c.id), c.published) AS hot_rank
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FROM
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community c
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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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(
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SELECT
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cf.id::boolean
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FROM
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community_follower cf
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WHERE
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u.id = cf.user_id
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AND ac.id = cf.community_id) AS subscribed
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FROM
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user_ u
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CROSS JOIN all_community ac
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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 subscribed
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FROM
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all_community ac;
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-- Post view
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CREATE VIEW post_view AS
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with all_post AS (
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SELECT
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p.*,
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(
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SELECT
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name
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FROM
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user_
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WHERE
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p.creator_id = user_.id) AS creator_name,
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(
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SELECT
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name
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FROM
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community
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WHERE
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p.community_id = community.id) AS community_name,
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(
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SELECT
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removed
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FROM
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community c
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WHERE
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p.community_id = c.id) AS community_removed,
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(
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SELECT
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deleted
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FROM
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community c
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WHERE
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p.community_id = c.id) AS community_deleted,
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(
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SELECT
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count(*)
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FROM
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comment
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WHERE
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comment.post_id = p.id) AS number_of_comments,
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coalesce(sum(pl.score), 0) AS score,
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count(
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CASE WHEN pl.score = 1 THEN
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1
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ELSE
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NULL
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END) AS upvotes,
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count(
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CASE WHEN pl.score = - 1 THEN
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1
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ELSE
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NULL
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END) AS downvotes,
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hot_rank (coalesce(sum(pl.score), 0), p.published) AS hot_rank
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FROM
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post p
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LEFT JOIN post_like pl ON p.id = pl.post_id
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GROUP BY
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p.id
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)
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SELECT
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ap.*,
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u.id AS user_id,
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coalesce(pl.score, 0) AS my_vote,
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(
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SELECT
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cf.id::bool
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FROM
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community_follower cf
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WHERE
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u.id = cf.user_id
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AND cf.community_id = ap.community_id) AS subscribed,
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(
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SELECT
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pr.id::bool
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FROM
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post_read pr
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WHERE
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u.id = pr.user_id
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AND pr.post_id = ap.id) AS read,
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(
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SELECT
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ps.id::bool
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FROM
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post_saved ps
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WHERE
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u.id = ps.user_id
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AND ps.post_id = ap.id) AS saved
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FROM
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user_ u
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CROSS JOIN all_post ap
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LEFT JOIN post_like pl ON u.id = pl.user_id
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AND ap.id = pl.post_id
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UNION ALL
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SELECT
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ap.*,
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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 read,
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NULL AS saved
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FROM
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all_post ap;
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