35 lines
804 B
MySQL
35 lines
804 B
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `vn`.`travel_doRecalc`()
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proc: BEGIN
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/**
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* Recounts the number of entries of changed travels.
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*/
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DECLARE vTravelFk INT;
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DECLARE EXIT HANDLER FOR SQLEXCEPTION
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BEGIN
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DO RELEASE_LOCK('vn.ticket_doRecalc');
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END;
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IF !GET_LOCK('vn.travel_doRecalc', 0) THEN
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LEAVE proc;
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END IF;
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CREATE OR REPLACE TEMPORARY TABLE tTravel
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ENGINE = MEMORY
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SELECT travelFk FROM travelRecalc;
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UPDATE travel t
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JOIN tTravel tt ON tt.travelFk = t.id
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SET t.totalEntries = (
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SELECT COUNT(e.id)
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FROM entry e
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WHERE e.travelFk = t.id
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);
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DELETE tr FROM travelRecalc tr JOIN tTravel t ON tr.travelFk = t.travelFk;
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DROP TEMPORARY TABLE tTravel;
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DO RELEASE_LOCK('vn.travel_doRecalc');
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END$$
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DELIMITER ;
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