DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `srt`.`expeditionLoading_add`(vExpeditionFk INT, vBufferFk INT)
BEGIN
	
	DECLARE vMessage VARCHAR(50) DEFAULT '';

	IF (SELECT COUNT(*) FROM srt.buffer WHERE id = vBufferFk) = 0 THEN 
	
		SET vMessage = 'Buffer incorrecto';
	
	END IF;

	IF (SELECT COUNT(*) FROM srt.expedition WHERE id = vExpeditionFk) = 0 THEN 
	
		SET vMessage = 'Expedición no existe';
	
	END IF;
	
	IF LENGTH(vMessage) = 0 THEN
	
		REPLACE srt.expeditionLoading (expeditionFk, bufferFk)
			VALUES (vExpeditionFk, vBufferFk);
	
		SET vMessage = 'Registro añadido';
	
	END IF;

	SELECT vMessage;

END$$
DELIMITER ;