22 lines
594 B
MySQL
22 lines
594 B
MySQL
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DROP PROCEDURE IF EXISTS `vn`.`ticketRefund_beforeUpsert`;
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DELIMITER $$
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$$
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CREATE DEFINER=`root`@`localhost` PROCEDURE `vn`.`ticketRefund_beforeUpsert`(vRefundTicketFk INT, vOriginalTicketFk INT)
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BEGIN
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DECLARE vAlreadyExists BOOLEAN DEFAULT FALSE;
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IF vRefundTicketFk = vOriginalTicketFk THEN
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CALL util.throw('Original ticket and refund ticket has same id');
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END IF;
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SELECT COUNT(*) INTO vAlreadyExists
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FROM ticketRefund
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WHERE originalTicketFk = vOriginalTicketFk;
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IF vAlreadyExists > 0 THEN
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CALL util.throw('This ticket is already a refund');
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END IF;
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END$$
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DELIMITER ;
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