修复删除商品时只能删除一个的bug

@@ -148,12 +148,14 @@ $('.cart-goods').on('touchstart', '.checkbox', function() {
         }
     }, function() {
         var id = $this.closest('.shopping-cart-good').data('id');
+        var count = $this.data('count');
 
         $.ajax({
             method: 'post',
             url: '/cart/index/del',
             data: {
-                id: id
+                sku: id,
+                count: count
             }
         }).then(function(data) {
             if (data.code === 200) {

@@ -52,7 +52,7 @@
 
 
                 
-                <span class="iconfont icon-del">&#xe621;</span>
+                <span class="iconfont icon-del" data-count="{{count}}">&#xe621;</span>
             </p>
             <p class="row">
                 {{#if lowStocks}}

@@ -127,16 +127,17 @@ class CartModel
      * 移出购物车
      *
      * @param int $uid 用户ID
-     * @param string $sku 商品sku列表
+     * @param string $sku 商品sku
+     * @param string $count 要删除的数目
      * @param string $shoppingKey 未登录用户唯一识别码
      * @return array 接口返回的数据
      */
-    public static function removeFromCart($uid, $sku, $shoppingKey)
+    public static function removeFromCart($uid, $sku, $count, $shoppingKey)
     {
         $result = array('code' => 400, 'message' => '出错啦~');
 
         // 处理sku
-        $sku_list = json_encode(array($sku => 1));
+        $sku_list = json_encode(array($sku => $count));
 
         $remove = CartData::removeFromCart($uid, $sku_list, $shoppingKey);
         if ($remove && isset($remove['code'])) {

@@ -80,7 +80,7 @@ class IndexController extends AbstractAction
         if ($this->isAjax()) {
             $productId = $this->post('id', 0);
             $uid = $this->getUid(true);
-            $shoppingKey = $this->getSession('shoppingKey');
+            $shoppingKey = Helpers::getShoppingKeyByCookie();
             $result = CartModel::selectGoods($uid, $productId, $shoppingKey);
         }
 
@@ -99,10 +99,11 @@ class IndexController extends AbstractAction
         $result = array();
 
         if ($this->isAjax()) {
-            $productId = $this->post('id', 0);
+            $sku = $this->post('sku', 0);
+            $count = $this->post('count', 0);
             $uid = $this->getUid(true);
-            $shoppingKey = $this->getSession('shoppingKey');
-            $result = CartModel::removeFromCart($uid, $productId, $shoppingKey);
+            $shoppingKey = Helpers::getShoppingKeyByCookie();
+            $result = CartModel::removeFromCart($uid, $sku, $count, $shoppingKey);
         }
 
         if (empty($result)) {