DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`itemShelvingSale_reallocate`(
	vItemShelvingFk INT(10),
	vItemFk INT(10),
	vSectorFk INT
)
BEGIN
/**
 * Elimina reservas de un itemShelving e intenta reservar en otra ubicación 
 * 
 * @param vItemShelvingFk Id itemShelving
 * @param vItemFk Id del artículo
 * @param vSectorFk Id del sector
 */
	DECLARE EXIT HANDLER FOR SQLEXCEPTION
		BEGIN
			ROLLBACK;
			RESIGNAL;
		END;

	START TRANSACTION;
	
	UPDATE itemShelving
		SET visible = 0,
			available = 0
		WHERE id = vItemShelvingFk 
			AND itemFk = vItemFk;	

	SELECT iss.id
			FROM itemShelvingSale iss
				JOIN itemShelving ish ON ish.id = iss.itemShelvingFk
			WHERE iss.itemShelvingFk = vItemShelvingFk 			 
				AND iss.itemFk = vItemFk
				AND NOT iss.isPicked
			FOR UPDATE;

	INSERT INTO itemShelvingSaleReserve (saleFk, vSectorFk)
		SELECT DISTINCT iss.saleFk
			FROM itemShelvingSale iss
				JOIN itemShelving ish ON ish.id = iss.itemShelvingFk
			WHERE iss.itemShelvingFk = vItemShelvingFk 			 
				AND ish.itemFk = vItemFk
				AND NOT iss.isPicked;

	DELETE iss
		FROM itemShelvingSale iss
				JOIN itemShelving ish ON ish.id = iss.itemShelvingFk
			WHERE iss.itemShelvingFk = vItemShelvingFk 			 
				AND ish.itemFk = vItemFk
				AND NOT iss.isPicked;
	COMMIT;

	CALL itemShelvingSale_doReserve();
END$$
DELIMITER ;