ldc-le-gaulois-pro/database/seeders/SlideSeeder.php

<?php

namespace Database\Seeders;

use App\Models\Slide;
use Illuminate\Database\Seeder;
use SplFileInfo;

class SlideSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $ii = 1;
        Slide::truncate();
        Slide::factory(4)->make()
            ->each(function (Slide $slide) use (&$ii) {
                $slide->picture           = new SplFileInfo(\resource_path(
                    '../database/factories/assets/slide/image-slide-950x700-0' . $ii . '.jpg'
                ));
                $slide->picture_thumbnail = new SplFileInfo(\resource_path(
                    '../database/factories/assets/slide/vignette-slide-167x70-0' . $ii . '.jpg'
                ));
                $slide->order             = $ii;
                $slide->saveOrFail();
                $ii = $ii + 1;
            });
    }
}