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Two bugs were found and fixed: - previously elements removal and deletion were counted as two separate disappearances - removing comments did not affect post aggregations
106 lines
2.9 KiB
PL/PgSQL
106 lines
2.9 KiB
PL/PgSQL
-- 2023-06-19-120700_no_double_deletion/up.sql
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create or replace function was_removed_or_deleted(TG_OP text, OLD record, NEW record)
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RETURNS boolean
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LANGUAGE plpgsql
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as $$
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begin
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IF (TG_OP = 'INSERT') THEN
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return false;
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end if;
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IF (TG_OP = 'DELETE' AND OLD.deleted = 'f' AND OLD.removed = 'f') THEN
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return true;
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end if;
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return TG_OP = 'UPDATE' AND (
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(OLD.deleted = 'f' AND NEW.deleted = 't') OR
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(OLD.removed = 'f' AND NEW.removed = 't')
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);
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END $$;
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-- 2022-04-04-183652_update_community_aggregates_on_soft_delete/up.sql
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create or replace function was_restored_or_created(TG_OP text, OLD record, NEW record)
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RETURNS boolean
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LANGUAGE plpgsql
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as $$
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begin
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IF (TG_OP = 'DELETE') THEN
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return false;
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end if;
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IF (TG_OP = 'INSERT') THEN
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return true;
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end if;
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return TG_OP = 'UPDATE' AND (
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(OLD.deleted = 't' AND NEW.deleted = 'f') OR
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(OLD.removed = 't' AND NEW.removed = 'f')
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);
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END $$;
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-- 2021-08-02-002342_comment_count_fixes/up.sql
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create or replace function post_aggregates_comment_deleted()
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returns trigger language plpgsql
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as $$
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begin
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IF NEW.deleted = TRUE THEN
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update post_aggregates pa
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set comments = comments - 1
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where pa.post_id = NEW.post_id;
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ELSE
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update post_aggregates pa
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set comments = comments + 1
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where pa.post_id = NEW.post_id;
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END IF;
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return null;
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end $$;
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create trigger post_aggregates_comment_set_deleted
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after update of deleted on comment
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for each row
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execute procedure post_aggregates_comment_deleted();
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create or replace function post_aggregates_comment_count()
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returns trigger language plpgsql
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as $$
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begin
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IF (TG_OP = 'INSERT') THEN
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update post_aggregates pa
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set comments = comments + 1,
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newest_comment_time = NEW.published
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where pa.post_id = NEW.post_id;
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-- A 2 day necro-bump limit
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update post_aggregates pa
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set newest_comment_time_necro = NEW.published
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from post p
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where pa.post_id = p.id
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and pa.post_id = NEW.post_id
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-- Fix issue with being able to necro-bump your own post
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and NEW.creator_id != p.creator_id
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and pa.published > ('now'::timestamp - '2 days'::interval);
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ELSIF (TG_OP = 'DELETE') THEN
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-- Join to post because that post may not exist anymore
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update post_aggregates pa
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set comments = comments - 1
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from post p
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where pa.post_id = p.id
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and pa.post_id = OLD.post_id;
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ELSIF (TG_OP = 'UPDATE') THEN
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-- Join to post because that post may not exist anymore
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update post_aggregates pa
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set comments = comments - 1
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from post p
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where pa.post_id = p.id
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and pa.post_id = OLD.post_id;
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END IF;
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return null;
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end $$;
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-- 2020-12-10-152350_create_post_aggregates/up.sql
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create or replace trigger post_aggregates_comment_count
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after insert or delete on comment
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for each row
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execute procedure post_aggregates_comment_count();
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