DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` FUNCTION `vn`.`ticket_get`(vParamFk INT)
	RETURNS INT(11)
	NOT DETERMINISTIC
	READS SQL DATA
BEGIN
/**
 * Devuelve el número de ticket / collection / sectorCollection consultando 
 * en que tabla se encuantra en la última semana
 * 
 * @param vParamFk Número a validar
 * @return vReturn Identificador validado
 */
	DECLARE vReturn INT DEFAULT NULL;
	DECLARE vDated DATE;

	SET vDated = util.VN_CURDATE() - INTERVAL 1 WEEK;

	SELECT COALESCE(
		(SELECT s.ticketFk
			FROM sale s
			JOIN saleGroupDetail sgd ON sgd.saleFk = s.id
			JOIN saleGroup sg ON sg.id = sgd.saleGroupFk
			WHERE sg.id = vParamFk 
				AND sg.created > vDated
			LIMIT 1),
		(SELECT c.id
			FROM collection c
			WHERE c.id = vParamFk 
				AND c.created > vDated),
		(SELECT id
			FROM ticket
			WHERE id = vParamFk 
				AND shipped > vDated),
		(SELECT id
			FROM sectorCollection
			WHERE id = vParamFk 
				AND created > vDated)
	) INTO vReturn;

	RETURN vReturn;
	
END$$
DELIMITER ;