honhui/app/Models/NewsParagraphPhoto.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Storage;
use Spatie\Translatable\HasTranslations;

class NewsParagraphPhoto extends Model
{
    use HasTranslations;

    protected $guarded = ['id'];
    public $timestamps = false;
    protected $appends = ['photo_img_url'];
    public $translatable = ['img_alt'];

    public function paragraph(){
        return $this->belongsTo(NewsParagraph::class);
    }
    protected function photoImgUrl(): Attribute
    {
        return Attribute::make(
            get: fn ($value) => is_null($this->img_url) ? null :Storage::url($this->img_url),
        );
    }
}