lianjie_admin/app/Models/Category.php

<?php

namespace App\Models;

use Dcat\Admin\Traits\ModelTree;
use Illuminate\Database\Eloquent\Model;

class Category extends Model
{
    use ModelTree;

    protected $table = 'lanzu_category';
    protected $dateFormat = 'U';

     // 父级ID字段名称，默认值为 parent_id
    //  protected $parentColumn = 'pid';

     // 排序字段名称，默认值为 order
     protected $orderColumn = 'sort';

     // 标题字段名称，默认值为 title
    //  protected $titleColumn = 'name';
}