29 lines
855 B
MySQL
29 lines
855 B
MySQL
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drop trigger post_aggregates_comment_set_deleted on comment;
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drop function 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 $$
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begin
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IF (TG_OP = 'INSERT') THEN
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update post_aggregates pa
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set comments = comments + 1,
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newest_comment_time = NEW.published
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where pa.post_id = NEW.post_id;
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-- A 2 day necro-bump limit
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update post_aggregates pa
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set newest_comment_time_necro = NEW.published
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where pa.post_id = NEW.post_id
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and published > ('now'::timestamp - '2 days'::interval);
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ELSIF (TG_OP = 'DELETE') THEN
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-- Join to post because that post may not exist anymore
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update post_aggregates pa
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set comments = comments - 1
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from post p
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where pa.post_id = p.id
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and pa.post_id = OLD.post_id;
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END IF;
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return null;
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end $$;
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