GY_zhishiku_admin/app/Model/qw/Qw.php

<?php
namespace App\Model\qw;

use Illuminate\Database\Eloquent\Model;


class Qw extends Model
{


    public $table = "jm_qw";

    protected $appends = [
        'category_desc'
    ];


    public $timestamps = false;

    /**
     * 部门描述
     */
    public function getCategoryDescAttribute()
    {
        $qwCategory = QwCategory::find($this->category_id);
        return $qwCategory->category_name ?? '';
    }

}