38 lines
843 B
MySQL
38 lines
843 B
MySQL
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USE `vn`;
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DROP procedure IF EXISTS `department_calcTree`;
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DELIMITER $$
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USE `vn`$$
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CREATE DEFINER=`root`@`%` PROCEDURE `department_calcTree`()
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BEGIN
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/**
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* Calculates the #path, #lft, #rgt, #sons and #depth columns of
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* the #department table. To build the tree, it uses the #parentFk
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* column.
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*/
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DECLARE vIndex INT DEFAULT 0;
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DECLARE vSons INT;
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DROP TEMPORARY TABLE IF EXISTS tNestedTree;
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CREATE TEMPORARY TABLE tNestedTree
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SELECT id, path, lft, rgt, depth, sons
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FROM department LIMIT 0;
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SET max_sp_recursion_depth = 5;
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CALL department_calcTreeRec(NULL, '/', 0, vIndex, vSons);
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SET max_sp_recursion_depth = 0;
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UPDATE department z
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JOIN tNestedTree t ON t.id = z.id
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SET z.path = t.path,
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z.lft = t.lft,
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z.rgt = t.rgt,
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z.depth = t.depth,
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z.sons = t.sons;
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DROP TEMPORARY TABLE tNestedTree;
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END$$
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DELIMITER ;
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