code review by hf: do reset add to cart operate

- Subproject commit e9d066dd88a8e7e37103021c427a205a5cfcdcec
+ Subproject commit 75bbc3b075de19f239532f60c5995d06c5f814e2

@@ -425,4 +425,40 @@ class IndexController extends AbstractAction
             $this->echoJson($result);
         }
     }
+    
+    /**
+     * 加入购物车
+     * 
+     * @param string productSku 商品的SKU
+     * @param int buyNumber 购买数量
+     * @param int promotionId 促销ID, 加价购有关
+     * @param int goodsType 商品类型，0表示普通商品，1表示加价购商品
+     * @param int isEdit 是否是编辑商品SKU，0表示不是编辑
+     * @return json
+     */
+    public function addAction()
+    {
+        $result = array();
+
+        if ($this->isAjax()) {
+            $shoppingKey = Helpers::getShoppingKeyByCookie();
+            $productSku = $this->post('productSku');
+            $buyNumber = $this->post('buyNumber', 1);
+            $goodsType = $this->post('goodsType', 0);
+            $promotionId = $this->post('promotionId', 0);
+            $isEdit = $this->post('isEdit', 0);
+            $uid = $this->getUid(true);
+
+            // 执行加入购物车操作
+            $result = CartModel::addToCart($productSku, $buyNumber, $goodsType, $isEdit, $promotionId, $uid, $shoppingKey);
+
+            // 设置加入购物车凭证到客户端浏览器
+            if (isset($result['data']['shopping_key'])) {
+                $this->setCookie('_spk', $shoppingKey);
+            }
+        }
+
+        $this->echoJson($result);
+    }
+    
 }