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

DELIMITER $$
CREATE OR REPLACE DEFINER=`vn-admin`@`localhost` FUNCTION `vn`.`worker_isInDepartment`(vDepartmentCode VARCHAR(255))
	RETURNS int(11)
	DETERMINISTIC
BEGIN
/**
 * Devuelve booleano si el trabajador conectado pertenece
 * al departamento vDepartmentCode o a sus departamentos subordinados
 *
 * @param vDepartmentCode code del departamento que se desea comprobar.
 * @return Devuelve verdadero si es jefe del empleado por escala jerárquica.
 */
	DECLARE vIsInDepartment BOOLEAN;
	WITH RECURSIVE department AS (
		SELECT d.id FROM vn.department d WHERE code = vDepartmentCode
			UNION
		SELECT d.id
			FROM department ds
				JOIN vn.department d ON ds.id = d.parentFk
		)
		SELECT COUNT(*) INTO vIsInDepartment FROM department ds
			JOIN vn.workerDepartment wd ON wd.departmentFk = ds.id
			WHERE wd.workerFk = account.myUser_getId();

	RETURN vIsInDepartment;
END$$
DELIMITER ;