takeone-youtube-clone/app/Models/VideoSlide.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class VideoSlide extends Model
{
    protected $fillable = ['video_id', 'filename', 'position'];

    public function video()
    {
        return $this->belongsTo(Video::class);
    }

    public function getUrlAttribute(): string
    {
        return asset('storage/thumbnails/' . $this->filename);
    }
}