32 lines
867 B
MySQL
32 lines
867 B
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `vn`.`getNextDueDate`(vDated DATE, vGapDays INT, vPayDay INT)
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RETURNS date
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NOT DETERMINISTIC
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NO SQL
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BEGIN
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DECLARE vReturn DATE;
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DECLARE vDuaDate DATE;
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DECLARE vDuaDateDay INT;
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SELECT TIMESTAMPADD(DAY, vGapDays, vDated) INTO vDuaDate;
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IF vDuaDate = CONCAT(YEAR(vDuaDate), '-03-01') THEN
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SET vDuaDate = TIMESTAMPADD (DAY , -1, vDuaDate);
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ELSEIF vDuaDate = CONCAT(YEAR(vDuaDate), '-02-29') THEN
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SET vDuaDate = TIMESTAMPADD (DAY , -2, vDuaDate);
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END IF;
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IF MONTH(vDuaDate) = 2 AND vPayDay = 30 THEN
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IF util.isLeapYear(YEAR(vDuaDate)) THEN
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SET vPayDay = 29;
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ELSE
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SET vPayDay = 28;
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END IF;
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END IF;
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SELECT DAY(vDuaDate) INTO vDuaDateDay;
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RETURN TIMESTAMPADD(MONTH, (vDuaDateDay > vPayDay), DATE_FORMAT(vDuaDate, CONCAT('%y/%m/', vPayDay)));
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END$$
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DELIMITER ;
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