wxgzh/app/Admin/Controllers/SpecialistColumnSecondController.php

<?php

namespace App\Admin\Controllers;

use Encore\Admin\Controllers\AdminController;
use Encore\Admin\Form;
use Encore\Admin\Grid;
use Encore\Admin\Show;
use App\Models\SpecialistCloumn;
use Illuminate\Http\Request;

class SpecialistColumnSecondController extends AdminController
{
    /**
     * Title for current resource.
     *
     * @var string
     */
    protected $title = '健康课堂-二级栏目管理';

    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        $grid = new Grid(new SpecialistCloumn);

        $grid->column('id', __('ID'))->sortable();
        $grid->column('pid', __('上级栏目'))->display(function ($pid) {
            return $pid > 0 ? SpecialistCloumn::find($pid)->name : '';
        });
        $grid->column('name', __('名称'));
        $grid->column('is_show', __('是否显示'))->display(function ($isShow) {
            return SpecialistCloumn::$isShowMap[$isShow];
        });
        $grid->column('rank', __('排序(越大越靠前)'))->sortable();
        $grid->column('created_at', __('创建时间'));
        $grid->column('updated_at', __('更新时间'));

        $grid->model()->where('pid', '>', SpecialistCloumn::PID_0);

        //过滤用到的一级栏目
        $cloumns = SpecialistCloumn::where('pid', 0)->get();
        $firstCloumns = [];
        foreach ($cloumns as $cloumn){
            $firstCloumns[$cloumn->id] = $cloumn->name;
        }

        // 过滤
        $grid->filter(function ($filter) use($firstCloumns) {
            $filter->like('name', '名称');
            $filter->equal('pid', '类别')->select($firstCloumns);
            $filter->equal('is_show', '是否显示')->radio(SpecialistCloumn::$isShowMap);
        });

        return $grid;
    }

    /**
     * Make a show builder.
     *
     * @param mixed   $id
     * @return Show
     */
    protected function detail($id)
    {
        $show = new Show(SpecialistCloumn::findOrFail($id));

        $show->field('id', __('ID'));
        $show->field('created_at', __('Created at'));
        $show->field('updated_at', __('Updated at'));

        return $show;
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        $form = new Form(new SpecialistCloumn);

        $form->display('id', __('ID'));

        //只显示一级栏目
        $cloumns = SpecialistCloumn::where('pid', 0)->get();
        $firstCloumns = [];
        foreach ($cloumns as $cloumn){
            $firstCloumns[$cloumn->id] = $cloumn->name;
        }

        $form->select('pid', __('上一级'))->options($firstCloumns)->rules('required');;
        $form->text('name', __('名称'))->rules('required');
        $form->image('pic', __('图片'))->uniqueName()->move('pics/'.date('Y').'/'.date('m'));
        $form->text('url', __('链接地址'));

        $states = [
            'on'  => ['value' => 1, 'text' => '显示', 'color' => 'success'],
            'off' => ['value' => 0, 'text' => '不显示', 'color' => 'danger'],
        ];
        $form->switch('is_show', __('是否显示'))->states($states);
        $form->number('rank', __('排序(越大越靠前)'))->default(0);

        return $form;
    }

    protected function secondCloumn(Request $request){

        $pid = $request->get('q');
        $result = SpecialistCloumn::where('pid', $pid)->get(['id', 'name as text']);

        return count($result) == 0 ? [['id'=>0,'text'=>'无']] : $result;
    }
}