49 lines
935 B
MySQL
49 lines
935 B
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `vn2008`.`nest_child_add`(
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vTable VARCHAR(45)
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,vChild VARCHAR(45)
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,vFatherId INT
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)
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BEGIN
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DECLARE vMyLeft INT;
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SET vTable = util.quoteIdentifier(vTable);
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DROP TEMPORARY TABLE IF EXISTS aux;
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CREATE TEMPORARY TABLE aux
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SELECT 0 as lft;
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EXECUTE IMMEDIATE CONCAT(
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'UPDATE aux
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SET lft = (SELECT lft
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FROM ', vTable,
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' WHERE id = ?)')
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USING vFatherId;
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SELECT lft INTO vMyLeft FROM aux;
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DROP TEMPORARY TABLE aux;
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EXECUTE IMMEDIATE CONCAT(
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'UPDATE ', vTable, '
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SET rgt = rgt + 2
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WHERE rgt > ?
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ORDER BY rgt DESC')
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USING vMyLeft;
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EXECUTE IMMEDIATE CONCAT(
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'UPDATE ', vTable, '
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SET lft = lft + 2
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WHERE lft > ?
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ORDER BY lft DESC')
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USING vMyLeft;
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EXECUTE IMMEDIATE CONCAT(
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'INSERT INTO ', vTable, ' (name, lft, rgt)
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VALUES(?, ? + 1, ? + 2)')
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USING vChild,
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vMyLeft,
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vMyLeft;
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END$$
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DELIMITER ;
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