ldc-legaulois/database/seeders/Development/SubrangeSeeder.php

<?php

namespace Database\Seeders\Development;

use App\Lib\Helpers\FileStorageHelper;
use App\Models\Range;
use App\Models\Subrange;
use Illuminate\Database\Seeder;

class SubrangeSeeder extends Seeder
{
    /**
     * The name of the factory's corresponding model.
     *
     * @var string
     */
    protected $model = Subrange::class;

    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        Range::all()->map(function ($rangeModel) {
            Subrange::factory(5)->make()->each(function (Subrange $subrange) use ($rangeModel) {
                $subrange->range()->associate($rangeModel);
                $subrange->picture = FileStorageHelper::storeFile(
                    $subrange,
                    new \SplFileInfo(\resource_path(
                        '../database/factories/assets/subranges/default-picture-720x405.png'
                    ))
                );
                $subrange->save();
            });
        });
    }
}