salix/db/routines/vn/functions/worker_isBoss.sql

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DELIMITER $$
2024-08-20 08:06:10 +00:00
CREATE OR REPLACE DEFINER=`vn`@`localhost` FUNCTION `vn`.`worker_isBoss`(vUserId INT)
RETURNS int(11)
DETERMINISTIC
BEGIN
/**
* Comprueba por jerarquía si el trabajador actual es jefe
* de un trabajador en concreto.
*
* @param vSelf Id del trabajador que se desea comprobar.
* @return Revuelve verdadero si es jefe del empleado por escala jerárquica.
*/
DECLARE vWorkerId INT;
DECLARE vBossId INT;
SELECT id INTO vWorkerId
FROM worker
WHERE id = vSelf;
IF vWorkerId IS NULL THEN
CALL util.throw('USER_NOT_FOUND');
END IF;
DROP TEMPORARY TABLE IF EXISTS tCheckedWorker;
CREATE TEMPORARY TABLE tCheckedWorker
(PRIMARY KEY (workerFk))
ENGINE = MEMORY
SELECT id workerFk FROM worker LIMIT 0;
LOOP
SELECT bossFk INTO vBossId
FROM worker
WHERE id = vWorkerId;
IF (SELECT COUNT(*) FROM tCheckedWorker WHERE workerFk = vBossId) THEN
CALL util.throw('INFINITE_LOOP');
END IF;
IF vBossId = vWorkerId THEN
RETURN FALSE;
ELSEIF vBossId = account.myUser_getId() THEN
RETURN TRUE;
ELSE
INSERT INTO tCheckedWorker VALUES (vWorkerId);
SET vWorkerId = vBossId;
END IF;
END LOOP;
DROP TEMPORARY TABLE tCheckedWorker;
RETURN FALSE;
END$$
DELIMITER ;