65 lines
1.3 KiB
MySQL
65 lines
1.3 KiB
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `account`.`role_getDescendents`(vSelf INT)
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BEGIN
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/**
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* Gets the identifiers of all the subroles implemented by a role (Including
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* itself).
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*
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* @param vSelf The role identifier
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* @table tmp.role Subroles implemented by the role
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*/
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DECLARE vIsRoot BOOL;
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DROP TEMPORARY TABLE IF EXISTS
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tmp.role, parents, childs;
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CREATE TEMPORARY TABLE tmp.role
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(UNIQUE (id))
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ENGINE = MEMORY
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SELECT vSelf AS id;
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CREATE TEMPORARY TABLE parents
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ENGINE = MEMORY
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SELECT vSelf AS id;
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CREATE TEMPORARY TABLE childs
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LIKE parents;
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REPEAT
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DELETE FROM childs;
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INSERT INTO childs
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SELECT DISTINCT r.inheritsFrom id
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FROM parents p
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JOIN roleInherit r ON r.role = p.id
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LEFT JOIN tmp.role t ON t.id = r.inheritsFrom
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WHERE t.id IS NULL;
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DELETE FROM parents;
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INSERT INTO parents
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SELECT * FROM childs;
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INSERT INTO tmp.role
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SELECT * FROM childs;
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UNTIL ROW_COUNT() <= 0
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END REPEAT;
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-- If it is root all the roles are added
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SELECT COUNT(*) > 0 INTO vIsRoot
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FROM tmp.role t
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JOIN role r ON r.id = t.id
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WHERE r.`name` = 'root';
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IF vIsRoot THEN
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INSERT IGNORE INTO tmp.role (id)
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SELECT id FROM role;
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END IF;
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-- Cleaning
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DROP TEMPORARY TABLE
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parents, childs;
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END$$
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DELIMITER ;
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