2024-01-15 11:31:03 +00:00
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DELIMITER $$
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2024-08-20 08:06:10 +00:00
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CREATE OR REPLACE DEFINER=`vn`@`localhost` FUNCTION `vn`.`worker_isBoss`(vUserId INT)
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2024-01-15 11:31:03 +00:00
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RETURNS int(11)
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DETERMINISTIC
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BEGIN
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/**
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* Comprueba por jerarquía si el trabajador actual es jefe
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* de un trabajador en concreto.
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*
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* @param vSelf Id del trabajador que se desea comprobar.
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* @return Revuelve verdadero si es jefe del empleado por escala jerárquica.
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*/
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DECLARE vWorkerId INT;
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DECLARE vBossId INT;
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SELECT id INTO vWorkerId
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FROM worker
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WHERE id = vSelf;
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IF vWorkerId IS NULL THEN
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CALL util.throw('USER_NOT_FOUND');
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END IF;
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DROP TEMPORARY TABLE IF EXISTS tCheckedWorker;
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CREATE TEMPORARY TABLE tCheckedWorker
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(PRIMARY KEY (workerFk))
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ENGINE = MEMORY
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SELECT id workerFk FROM worker LIMIT 0;
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LOOP
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SELECT bossFk INTO vBossId
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FROM worker
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WHERE id = vWorkerId;
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IF (SELECT COUNT(*) FROM tCheckedWorker WHERE workerFk = vBossId) THEN
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CALL util.throw('INFINITE_LOOP');
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END IF;
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IF vBossId = vWorkerId THEN
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RETURN FALSE;
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ELSEIF vBossId = account.myUser_getId() THEN
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RETURN TRUE;
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ELSE
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INSERT INTO tCheckedWorker VALUES (vWorkerId);
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SET vWorkerId = vBossId;
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END IF;
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END LOOP;
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DROP TEMPORARY TABLE tCheckedWorker;
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RETURN FALSE;
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END$$
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DELIMITER ;
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