Cascading Laravel Factories - Cascading Factory with states

ProjectFactory.php

<?php

/** @var \Illuminate\Database\Eloquent\Factory $factory */

use App\Client;
use App\Project;
use Faker\Generator as Faker;

$factory->define(Project::class, function (Faker $faker) {
    return [
        'title' => $faker->sentence,
    ];
});

$factory->state(Project::class, 'relations-cascade', function (Faker $faker) {
    // cascade all dependent relations creating new objects
    return [
        'client_id' => factory(Client::class)->state('relations-cascade')->create()->getKey()
    ];
});

$factory->state(Project::class, 'relations-reuse', function (Faker $faker) {
    // cascade all dependent relations reusing existing objects
    return [
        'client_id' => Client::query()->inRandomOrder()->first()->getKey()
    ];
});