mirror of
https://github.com/LemmyNet/lemmy.git
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89 lines
2.3 KiB
MySQL
89 lines
2.3 KiB
MySQL
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CREATE OR REPLACE FUNCTION post_aggregates_post ()
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RETURNS TRIGGER
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LANGUAGE plpgsql
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AS $$
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BEGIN
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IF (TG_OP = 'INSERT') THEN
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INSERT INTO post_aggregates (post_id, published, newest_comment_time, newest_comment_time_necro, community_id, creator_id, instance_id)
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SELECT
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NEW.id,
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NEW.published,
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NEW.published,
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NEW.published,
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NEW.community_id,
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NEW.creator_id,
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community.instance_id
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FROM
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community
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WHERE
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NEW.community_id = community.id;
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ELSIF (TG_OP = 'DELETE') THEN
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DELETE FROM post_aggregates
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WHERE post_id = OLD.id;
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END IF;
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RETURN NULL;
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END
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$$;
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CREATE OR REPLACE TRIGGER post_aggregates_post
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AFTER INSERT OR DELETE ON post
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FOR EACH ROW
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EXECUTE PROCEDURE post_aggregates_post ();
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CREATE OR REPLACE TRIGGER community_aggregates_post_count
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AFTER INSERT OR DELETE OR UPDATE OF removed,
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deleted ON post
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FOR EACH ROW
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EXECUTE PROCEDURE community_aggregates_post_count ();
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DROP FUNCTION IF EXISTS community_aggregates_post_count_insert CASCADE;
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DROP FUNCTION IF EXISTS community_aggregates_post_update CASCADE;
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DROP FUNCTION IF EXISTS site_aggregates_post_update CASCADE;
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DROP FUNCTION IF EXISTS person_aggregates_post_insert CASCADE;
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CREATE OR REPLACE FUNCTION site_aggregates_post_insert ()
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RETURNS TRIGGER
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LANGUAGE plpgsql
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AS $$
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BEGIN
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IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
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UPDATE
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site_aggregates sa
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SET
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posts = posts + 1
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FROM
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site s
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WHERE
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sa.site_id = s.id;
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END IF;
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RETURN NULL;
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END
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$$;
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CREATE OR REPLACE TRIGGER site_aggregates_post_insert
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AFTER INSERT OR UPDATE OF removed,
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deleted ON post
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FOR EACH ROW
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WHEN (NEW.local = TRUE)
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EXECUTE PROCEDURE site_aggregates_post_insert ();
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CREATE OR REPLACE FUNCTION generate_unique_changeme ()
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RETURNS text
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LANGUAGE sql
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AS $$
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SELECT
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'http://changeme.invalid/' || substr(md5(random()::text), 0, 25);
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$$;
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CREATE OR REPLACE TRIGGER person_aggregates_post_count
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AFTER INSERT OR DELETE OR UPDATE OF removed,
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deleted ON post
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FOR EACH ROW
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EXECUTE PROCEDURE person_aggregates_post_count ();
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DROP SEQUENCE IF EXISTS changeme_seq;
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