diff --git a/plugin/webman/gateway/Events.php b/plugin/webman/gateway/Events.php
index 5784b74..84fd469 100644
--- a/plugin/webman/gateway/Events.php
+++ b/plugin/webman/gateway/Events.php
@@ -237,9 +237,11 @@ class Events
             base::gateway_query('sendToUid', [$s_id, json_encode($snd_data)]);
             return;
         }
-        $product = Db::query("
-                                SELECT * FROM `tb_product` WHERE 
-                                `id`={$message['product_id']}");
+        if(!empty($message['product_id'])) {
+            $product = Db::query("
+                                    SELECT * FROM `tb_product` WHERE 
+                                    `id`={$message['product_id']}");
+        }
         // 如果是新增或者编辑，查询库存够不够
         if (
             (!empty($message['operate_type'])  &&  ($message['operate_type'] == 'add' || $message['operate_type'] == 'edit')) &&