diff --git a/modules/api/models/SigningForm.php b/modules/api/models/SigningForm.php
index ab35ce7..65f24c9 100644
--- a/modules/api/models/SigningForm.php
+++ b/modules/api/models/SigningForm.php
@@ -26,11 +26,13 @@ class SigningForm extends ApiModel
 
     public $attr_id;
 
+    public $order_id;
+
     public function rules()
     {
         return [
             [['goods_hub_id', 'company_name', 'attr_id', 'brand_name', 'product', 'type', 'number'], 'required'],
-            [['goods_hub_id', 'number', 'user_id'], 'integer'],
+            [['goods_hub_id', 'number', 'user_id', 'order_id'], 'integer'],
             [['remark'], 'string']
         ];
     }
@@ -56,9 +58,18 @@ class SigningForm extends ApiModel
             return $this->apiReturnError('商品id异常');
         }
 
-        $signing = new Signing();
 
-        $signing->order_no = $this->orderNo();
+        if (!empty($this->order_id)) {
+            $signing = Signing::findOne(['id' => $this->order_id]);
+            if ($signing == null) {
+                return $this->apiReturnError('订单错误');
+            }
+
+        } else {
+            $signing = new Signing();
+            $signing->order_no = $this->orderNo();
+        }
+
         $signing->user_id = $this->user_id;
         $signing->goods_id = $goods->id;
         $signing->moy = $goodsAttr->price;