76 lines
1.8 KiB
MySQL
76 lines
1.8 KiB
MySQL
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DROP function IF EXISTS `vn`.`clientGetSalesPerson`;
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DELIMITER $$
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CREATE DEFINER=`root`@`%` FUNCTION `vn`.`clientGetSalesPerson`(vClientFk INT, vDated DATE) RETURNS int(11)
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DETERMINISTIC
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BEGIN
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/**
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* Dado un id cliente y una fecha, devuelve su comercial para ese dia, teniendo
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* en cuenta la jerarquía de las tablas: 1º la de sharingClient, 2º la de
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* sharingCart y tercero la de clientes.
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*
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* @param vClientFk El id del cliente
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* @param vDated Fecha a comprobar
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* @return El id del comercial para la fecha dada
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**/
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DECLARE vSalesperson INT DEFAULT NULL;
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DECLARE vSubstitute INT DEFAULT NULL;
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DECLARE vLoop BOOLEAN;
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-- Obtiene el comercial original y el de sharingClient
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SELECT c.salesPersonFk, s.workerFk
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INTO vSalesperson, vSubstitute
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FROM client c
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LEFT JOIN sharingClient s
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ON c.id = s.clientFk
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AND vDated BETWEEN s.started AND s.ended
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WHERE c.id = vClientFk
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ORDER BY s.id
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LIMIT 1;
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-- Si no hay ninguno en sharingClient busca en sharingCart
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IF vSubstitute IS NOT NULL
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THEN
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SET vSalesperson = vSubstitute;
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ELSEIF vSalesperson IS NOT NULL
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THEN
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DROP TEMPORARY TABLE IF EXISTS tmp.stack;
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CREATE TEMPORARY TABLE tmp.stack
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(INDEX (substitute))
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ENGINE = MEMORY
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SELECT vSalesperson substitute;
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l: LOOP
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SELECT workerSubstitute INTO vSubstitute
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FROM sharingCart
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WHERE vDated BETWEEN started AND ended
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AND workerFk = vSalesperson
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ORDER BY id
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LIMIT 1;
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IF vSubstitute IS NULL THEN
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LEAVE l;
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END IF;
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SELECT COUNT(*) > 0 INTO vLoop
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FROM tmp.stack WHERE substitute = vSubstitute;
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IF vLoop THEN
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LEAVE l;
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END IF;
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INSERT INTO tmp.stack SET
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substitute = vSubstitute;
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SET vSalesperson = vSubstitute;
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END LOOP;
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DROP TEMPORARY TABLE tmp.stack;
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END IF;
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RETURN vSalesperson;
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END$$
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DELIMITER ;
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