修复购物车结算页选择优惠券中优惠券是否可用的判定逻辑（通过php去过滤掉不可用的优惠券）

但那种免邮券还是不能用

Code Review By Rock Zhang

@@ -95,12 +95,13 @@ function orderCompute() {
             }
             if (res.discount_amount) {
                 res.discount_amount = (+res.discount_amount).toFixed(2);
-            }
+            }*/
             if (res.last_order_amount) {
                 res.last_order_amount = (+res.last_order_amount).toFixed(2);
-            }*/
+            }
             priceHtml = priceTmpl({
-                cartPayData: res.promotion_formula_list
+                cartPayData: res.promotion_formula_list,
+                price: res.last_order_amount
             });
 
             $price.html(priceHtml);

@@ -104,6 +104,9 @@
                       {{promotion_amount}}
                 </li>
                 {{/cartPayData}}
+                <li class="cost">
+                    应付金额： <em>¥{{price}}</em>
+                </li>
             </ul>
         </section>
 
@@ -131,6 +134,9 @@
             &nbsp;&nbsp;\{{promotion_amount}}
         </li>
         \{{/cartPayData}}
+        <li class="cost">
+            应付金额： <em>¥\{{price}}</em>
+        </li>
     </ul>
 </script>
 {{> layout/footer}}

@@ -451,6 +451,8 @@ class CartModel
             // 订单数据
             if (isset($payReturn['shopping_cart_data']) && !empty($payReturn['shopping_cart_data'])) {
                 $result['cartPayData'] = isset($orderCompute['promotion_formula_list']) ? $orderCompute['promotion_formula_list'] : $payReturn['shopping_cart_data']['promotion_formula_list'];
+                $price = isset($orderCompute['last_order_amount']) ? $orderCompute['last_order_amount'] : $payReturn['shopping_cart_data']['last_order_amount'];
+                $result['price'] = Helpers::transPrice($price);
 
                 /*$sumPrice = isset($orderCompute['order_amount']) ? $orderCompute['order_amount'] : $payReturn['shopping_cart_data']['order_amount'];
 
@@ -569,17 +571,21 @@ class CartModel
         $coupons = CartData::getCouponList($uid);
 
         do {
-            if ($onlyTotal) {
-                $result['count'] = count($coupons['data']['couponList']);
-                break;
-            }
-
             if (isset($coupons['data']['couponList'])) {
-                foreach ($coupons['data']['couponList'] as &$val) {
-                    $val['notAvailable'] = $val['isValidity'] === 'N';
+                foreach ($coupons['data']['couponList'] as $val) {
+                    $notAvailableRes = self::searchCoupon($uid, $val['couponCode']);
+                    // 处理可用的优惠券
+                    if ($val['isValidity'] === 'N' || (isset($notAvailableRes['code']) && $notAvailableRes['code'] !== 200)) {
+//                        $val['notAvailable'] = true;
+                        continue;
+                    }
+                    $result[] = $val;
                 }
+            }
 
-                $result = $coupons['data']['couponList'];
+            if ($onlyTotal) {
+                $count = count($result);
+                $result = array('count' => $count);
             }
         }while(0);