28 lines
636 B
SQL
28 lines
636 B
SQL
DELIMITER $$
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CREATE OR REPLACE DEFINER=`vn`@`localhost` FUNCTION `vn`.`item_getVolume`(vSelf INT, vPackaging VARCHAR(10))
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RETURNS int(11)
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DETERMINISTIC
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BEGIN
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/**
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* Calculates the volume occupied by an item together
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* with its packaging.
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*
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* @param vSelf The item id
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* @param vPackaging The packaging id
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* @return The volume in cubic centimeters
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*/
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DECLARE vVolume INT;
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SELECT SUM(IF(p.volume > 0,
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p.volume,
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p.width * p.depth * IF(IFNULL(p.height,0), p.height, IFNULL(i.size,60) + 10)
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)) INTO vVolume
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FROM packaging p
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JOIN item i ON i.id = vSelf
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WHERE p.id = vPackaging;
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RETURN vVolume;
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END$$
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DELIMITER ;
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