DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`itemCampaign_add`()
proc: BEGIN
/**
 * Añade registros a tabla itemCampaign.
 *
 * @param vDateFrom Fecha desde
 * @param vDateTo Fecha hasta
 * @param vCampaign Código de la campaña
 */
	DECLARE vYesterday DATE;
	DECLARE vCampaign VARCHAR(100);
	DECLARE vScopeDays INT;
	DECLARE vPreviousDays INT;
	DECLARE vDateSumFrom DATE;
	DECLARE vDateSumTo DATE;

	SET vYesterday = util.yesterday();

	SELECT dated, code, scopeDays, previousDays
			INTO vDateSumTo, vCampaign, vScopeDays, vPreviousDays
		FROM campaign
		WHERE dated >= vYesterday
		ORDER BY dated
		LIMIT 1;

	IF vCampaign IS NULL THEN
		CALL util.throw('Missing data in campaign table');
	END IF;

	IF NOT vYesterday BETWEEN vDateSumTo - INTERVAL vPreviousDays DAY
			AND vDateSumTo THEN
		LEAVE proc;
	END IF;

	SET vDateSumFrom = vDateSumTo - INTERVAL vScopeDays DAY;
	SET vDateSumTo = vDateSumTo - INTERVAL 1 DAY;

	INSERT INTO itemCampaign(dated, itemFk, quantity, total, campaign)
		SELECT vYesterday,
				s.itemFk,
				SUM(s.quantity) quantity,
				SUM((s.quantity  * s.price) * (100 - s.discount) / 100) total,
				vCampaign
			FROM sale s
				JOIN ticket t ON t.id = s.ticketFk
				JOIN client c ON c.id = t.clientFk
			WHERE t.shipped BETWEEN vDateSumFrom AND util.dayEnd(vDateSumTo)
				AND c.typeFk = 'normal'
				AND NOT t.isDeleted
			GROUP BY s.itemFk
			HAVING quantity;
END$$
DELIMITER ;