增加倒叙

common/helpers/bonus/BonusCalc.php

@@ -3433,6 +3433,7 @@ class BonusCalc extends BaseObject {
                     // 如果不是结算月,则找上一期的结算月数据
                     $forwardMonthPeriod = Period::find()
                     ->where('IS_MONTH=1 AND PERIOD_NUM<:PERIOD_NUM', [':PERIOD_NUM'=>$this->_periodNum])
+                    ->orderBy('PERIOD_NUM DESC')
                     ->asArray()
                     ->one();
                     $forwardPeriodNum = $forwardMonthPeriod['PERIOD_NUM'];