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25 lines
550 B
MySQL
25 lines
550 B
MySQL
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CREATE OR REPLACE FUNCTION community_aggregates_subscriber_count ()
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RETURNS TRIGGER
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LANGUAGE plpgsql
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AS $$
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BEGIN
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IF (TG_OP = 'INSERT') THEN
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UPDATE
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community_aggregates
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SET
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subscribers = subscribers + 1
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WHERE
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community_id = NEW.community_id;
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ELSIF (TG_OP = 'DELETE') THEN
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UPDATE
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community_aggregates
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SET
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subscribers = subscribers - 1
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WHERE
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community_id = OLD.community_id;
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END IF;
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RETURN NULL;
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END
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$$;
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