mtb_dcatadmin_album/app/Admin/Repositories/SiteAlbumFolder.php

<?php

namespace App\Admin\Repositories;

use App\Models\SiteAlbumFolder as Model;
use Dcat\Admin\Repositories\EloquentRepository;

class SiteAlbumFolder extends EloquentRepository
{
    /**
     * Model.
     *
     * @var string
     */
    protected $eloquentClass = Model::class;

    /*
 * 改写列表显示返回的数据
 */
    public function get(Grid\Model|\Dcat\Admin\Grid\Model $model)
    {
        // 获取模型对象
        $obj = $this->model();
        // 获取数据
        $tree = $obj->orderBy('order', 'desc')->orderBy('id', 'desc')->get();
        $treeData = $tree->toArray();

        // 构建树形结构
        $data=buildTree($treeData);

        // 转换成一维数组
        $data=flattenTree($data);

        return $model->makePaginator(
            count($data), // 传入总记录数
            $data // 传入数据二维数组
        );
    }

    public static function selectMainOptions(\Closure $closure = null)
    {
        if (!$closure) {
            $closure = function ($query) {
                $query =  $query->orderBy('order', 'desc')->orderBy('id', 'desc');
                return $query;
            };
        }
        $selectOptions =  Model::class::selectOptions($closure);
        //只显示2层
        foreach ($selectOptions as $key => $value) {
            if (substr_count($value,'&nbsp;') > 8) {
                unset($selectOptions[$key]);
            }
        }
        return $selectOptions;
    }

    // 调用模型方法
    public static function selectOptions(\Closure $closure = null)
    {
        if (!$closure) {
            $closure = function ($query) {
                $query = $query->where('enabled', 1);
                $query =  $query->orderBy('order', 'desc')->orderBy('id', 'desc');
                return $query;
            };
        }

        $selectOptions =  Model::class::selectOptions($closure);
        return $selectOptions;
    }


}