老库存注释

extend/workermans/model/Shopping.php

@@ -228,6 +228,9 @@ class Shopping extends Base
                         $data = Db::query("
                             SELECT * FROM `tb_cashier_cart` WHERE 
                             `id`={$message['id']}");
+                        if(empty($data)) {
+                            $data[0] = [];
+                        }
                     }else {
                         $status = 0;
                     }