weixin/app/Repositories/Models/Info/News.php

<?php

namespace App\Repositories\Models\Info;

use App\Repositories\Models\Base\Admin;
use App\Repositories\Models\Model;

class News extends Model
{
    /**
     * @var string
     */
    protected $table = 'info_news';

    protected $guarded = [];

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = [];

    public function getCoverAttribute()
    {
        if (array_key_exists('cover_path', $this->attributes)) return path_to_url($this->attributes['cover_path']);
        return '';
    }

    public function admin()
    {
        return $this->belongsTo(Admin::class)->select(['id', 'name', 'username']);
    }
}