lianjie_admin/app/Admin/Controllers/v3/SystemConfigController.php

<?php

namespace App\Admin\Controllers\v3;

use App\Admin\Repositories\v3\SystemConfig;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Show;
use Dcat\Admin\Controllers\AdminController;
use App\Models\v3\SystemConfig as SystemConfigModel;

class SystemConfigController extends AdminController
{
    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        return Grid::make(new SystemConfig(), function (Grid $grid) {
            $grid->column('id')->sortable();
            $grid->column('menu_name');
            $grid->column('info');
            $grid->column('value');
            $grid->column('category_text');
            $grid->column('sort');
            $grid->column('status')->switch();

            $grid->model()->orderby('id','desc');
        
            $grid->filter(function (Grid\Filter $filter) {
                $filter->equal('id');
                $filter->like('menu_name');
                $filter->equal('category')->select(SystemConfigModel::$_CATEGORY);
            });
        });
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     *
     * @return Show
     */
    protected function detail($id)
    {
        return Show::make($id, new SystemConfig(), function (Show $show) {
            $show->field('id');
            $show->field('menu_name');
            $show->field('category_text');
            $show->field('value');
            $show->field('info');
            $show->field('desc');
            $show->field('sort');
            $show->field('status_text');
            $show->field('created_at');
            $show->field('updated_at');
        });
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new SystemConfig(), function (Form $form) {
            $form->hidden('id');
            
            $form->text('menu_name')->width(4)->required()->rules('regex:/^[0-9a-z_]{1,}$/',['regex'=>'只能输入数字、小写字母和下划线'])->help('本字段在添加成功后不能编辑！');
            $form->select('category')->width(4)->options(SystemConfigModel::$_CATEGORY);
            $form->text('value')->required()->width(6)->maxLength(100);
            $form->text('info')->maxLength(255);
            $form->text('desc')->maxLength(500);
            $form->number('sort')->width(2)->default(0);

            $form->saving(function(Form $form){
                $id = $form->input('id');
                if($id && $form->input('menu_name') ){
                    $form->deleteInput('menu_name');
                }
            });
            $form->switch('status')
                ->customFormat(function ($v) {
                    return $v == 1 ? 1 : 0;
                })
                ->saving(function ($v) {
                    return $v == 1 ? 1 : 0;
            });

            $form->disableResetButton();
            $form->disableViewCheck();
            $form->disableEditingCheck();
            $form->disableCreatingCheck();
        });
    }
}