45 lines
841 B
MySQL
45 lines
841 B
MySQL
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CREATE FUNCTION _api.follow_update()
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RETURNS TRIGGER
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LANGUAGE plpgsql VOLATILE
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AS $BODY$
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DECLARE
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_user_id INTEGER;
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_changed BOOLEAN;
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BEGIN
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_user_id = _api.get_user_id();
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_changed = FALSE;
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IF OLD.follower_id <> _user_id THEN
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PERFORM _api.raise_deny();
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END IF;
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NEW.value = COALESCE(NEW.value, OLD.value);
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IF NEW.value IS DISTINCT FROM OLD.value THEN
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_changed = TRUE;
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END IF;
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IF _changed THEN
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UPDATE admin.follow SET
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value = NEW.value,
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modified = clock_timestamp()
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WHERE id = OLD.id;
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END IF;
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RETURN NEW;
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END
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$BODY$;
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GRANT EXECUTE ON FUNCTION _api.follow_update()
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TO rest_user;
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GRANT UPDATE ON TABLE api.follow
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TO rest_user;
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GRANT UPDATE ON TABLE admin.follow
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TO rest_user;
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CREATE TRIGGER api_follow_update_trgr
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INSTEAD OF UPDATE
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ON api.follow
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FOR EACH ROW
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EXECUTE PROCEDURE _api.follow_update();
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