bencao-library-api/app/Models/LibraryBook.php

<?php

namespace App\Models;

use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\Eloquent\Model;

class LibraryBook extends Model
{
    use HasDateTimeFormatter;
    use SoftDeletes;

    protected $table = 'library_books';

    protected $guarded = [];

    const statusMaps = [
        0 => '禁用',
        1 => '正常',
    ];

    public function category()
    {
        return $this->belongsTo(LibraryCategory::class);
    }

    public function getCoverPathUrlAttribute()
    {
        if (array_key_exists('cover_path', $this->attributes)) return path_to_url($this->attributes['cover_path'], config('admin.upload.disk'));
        return '';
    }

}