salix/db/changes/10031-zone/00-zoneNestTown.sql

60 lines
1.4 KiB
SQL

DROP procedure IF EXISTS `zoneNestTown`;
DELIMITER $$
CREATE DEFINER=`root`@`%` PROCEDURE `vn`.`zoneNestTown`()
BEGIN
DECLARE vDone BOOL;
DECLARE vParent INT DEFAULT 1;
DECLARE vGeoFk INT;
DECLARE vChildFk INT;
DECLARE vChildName VARCHAR(100);
DECLARE townCur CURSOR FOR
SELECT p.geoFk, t.id, t.`name`
FROM vn.town t
JOIN vn.province p ON p.id = t.provinceFk
JOIN tmp.country tc ON tc.id = p.countryFk
ORDER BY p.geoFk, t.`name`;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET vDone = TRUE;
-- Remove existing towns from zoneGeo
DELETE zg FROM vn.town t
JOIN vn.province p ON p.id = t.provinceFk
JOIN tmp.country tc ON tc.id = p.countryFk
JOIN tmp.zoneGeo zg ON zg.id = t.geoFk;
-- Reset town geoFk
UPDATE vn.town t
JOIN vn.province p ON p.id = t.provinceFk
JOIN tmp.country tc ON tc.id = p.countryFk
SET t.geoFk = NULL
WHERE t.geoFk IS NOT NULL;
-- > Town cursor start
OPEN townCur;
townLoop: LOOP
SET vDone = FALSE;
FETCH townCur INTO vParent, vChildFk, vChildName;
IF vDone THEN
LEAVE townLoop;
END IF;
CALL nst.nodeAdd('tmp', 'zoneGeo', vParent, vChildName);
END LOOP;
CLOSE townCur;
-- < Town cursor end
UPDATE town t
JOIN tmp.zoneGeo z ON z.name = t.name
LEFT JOIN province p ON p.geoFk = z.id
SET t.geoFk = z.id
WHERE p.geoFk IS NULL;
END$$
DELIMITER ;