add rpc buyerSpendAmount pointer

src/Order/Lib/OrderInterface.php

@@ -31,6 +31,7 @@ use Swoft\Core\ResultInterface;
  * @method ResultInterface deferGetShopDailyStatistic(int $storeId,int $startDate,int $endDate)
  * @method ResultInterface deferGetShopNewOrderNum(int $storeId)
  * @method ResultInterface deferOrderCountByCondition(int $storeId,array $condition)
+ * @method ResultInterface deferBuyerSpendAmount(int $storeId,int $buyerId)
  */
 interface OrderInterface
 {
@@ -215,4 +216,13 @@ interface OrderInterface
      * @return int
      */
     public function orderCountByCondition(int $storeId,array $condition);
+
+    /**
+     * 获取用户微信总消费金额
+     * 
+     * @param integer $storeId
+     * @param integer $buyerId
+     * @return int
+     */
+    public function buyerSpendAmount(int $storeId,int $buyerId);
 }
\ No newline at end of file