recharge controller bug fix

www/protected/controllers/RechargeController.php

@@ -70,9 +70,9 @@ class RechargeController extends AdminController {
     }
     //添加充值卡信息
     public function actionAdd () {
-        $denomination = Yii::app()->request->getParam('denomination', '');
-        $cash_back = Yii::app()->request->getParam('cash_back', '0');
-        $status = Yii::app()->request->getParam('status', -1);
+        $denomination = intval(Yii::app()->request->getParam('denomination', 0));
+        $cash_back = intval(Yii::app()->request->getParam('cash_back', 0));
+        $status = intval(Yii::app()->request->getParam('status', 0));
         $desc = Yii::app()->request->getParam('desc', '');
         $flag = empty($denomination);
         $flag = $flag || $status == -1;