ALTER TABLE community ADD COLUMN nsfw boolean DEFAULT FALSE NOT NULL; ALTER TABLE post ADD COLUMN nsfw boolean DEFAULT FALSE NOT NULL; ALTER TABLE user_ ADD COLUMN show_nsfw boolean DEFAULT FALSE NOT NULL; -- The views DROP VIEW community_view; 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, hot_rank (( SELECT count(*) FROM community_follower cf WHERE cf.community_id = c.id), c.published) AS hot_rank FROM community c ) 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 view DROP VIEW post_view; CREATE VIEW post_view AS with all_post AS ( SELECT p.*, ( SELECT name FROM user_ WHERE p.creator_id = user_.id) AS creator_name, ( 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), p.published) AS hot_rank FROM post p LEFT JOIN post_like pl ON p.id = pl.post_id GROUP BY p.id ) 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;