strprfcrm/database/factories/DistrictFactory.php

<?php

namespace Database\Factories;

use App\Models\Dictionary\District;
use Illuminate\Database\Eloquent\Factories\Factory;

/**
 * @extends Factory<District>
 */
class DistrictFactory extends Factory
{
    protected $model = District::class;

    public function definition(): array
    {
        $name = fake()->city();
        return [
            'name' => $name,
            'shortname' => mb_substr($name, 0, 3),
        ];
    }
}