本位码唯一

app/Admin/Controllers/DrugController.php

@@ -132,7 +132,12 @@ protected function form()
             $limitOption = array_combine($array, $array);
             $limitOption = array_combine($array, $array);
             $form->select('limit_buy_7')->placeholder('请选择限购数量')->width(4)->options($limitOption)->help('限购数量');
             $form->select('limit_buy_7')->placeholder('请选择限购数量')->width(4)->options($limitOption)->help('限购数量');
             $form->switch('is_rx')->width(4);
             $form->switch('is_rx')->width(4);
-            $form->text('standard_code')->width(4)->required();
+            $form->text('standard_code')->width(4)->required()->rules(function (Form $form) {
+                // 如果不是编辑状态，则添加字段唯一验证
+                if (! $id = $form->model()->id) {
+                    return 'unique:App\Models\DrugModel,standard_code';
+                }
+            });
             $form->multipleSelect('tag', '标签')
             $form->multipleSelect('tag', '标签')
                 ->options(function () {
                 ->options(function () {
                     return DrugTagModel::all()->pluck('tag_name', 'id');
                     return DrugTagModel::all()->pluck('tag_name', 'id');