购物车问题修复

@@ -153,14 +153,24 @@ function loadCartDetail(key) {
     };
 
     $.getJSON('http://www.yohobuy.com/common/shoppingCart/?callback=?', param, function(jsonData) {
-        var totalGoods, data;
+        var totalGoods = [],
+            infoArr = [
+                'main_goods',
+                'advance_goods',
+                'outlet_goods',
+                'gift_goods',
+                'need_pay_gifts'
+            ],
+            data;
 
         if (jsonData.code === 200) {
             data = jsonData.data;
-            totalGoods = $.merge(data.main_goods, data.advance_goods);
-            totalGoods = $.merge(totalGoods, data.outlet_goods);
-            totalGoods = $.merge(totalGoods, data.gift_goods);
-            totalGoods = $.merge(totalGoods, data.need_pay_gifts);
+            $.each(infoArr, function(k, v) {
+                if (data[v]) {
+                    totalGoods = $.merge(totalGoods, data[v]);
+                }
+            });
+
             if (totalGoods && totalGoods.length) {
                 data.totalGoods = totalGoods;
                 $miniCart.html(cartFn({
@@ -360,7 +370,7 @@ $goCart.hover(function() {
     if ($goCart.hasClass('on-hover')) {
         return;
     }
-
+    
     data = $goCart.data();
     if (data && data.num * 1) {
         _html = '<div class="loading-cart"><h3>加载中，请稍后</h3></div>';