PageSeeder and an implementation

AboutPageSeeder.php

<?php namespace Freemotion\FreemotionTheme\Database\Seeder;

class AboutPageSeeder extends PageSeeder
{

    protected $type = 'about';
    protected $title = 'About Freemotion Fitness';
    protected $slug = 'about';
    protected $enabled = true;
    protected $content = '';

}

PageSeeder.php

<?php namespace Freemotion\FreemotionTheme\Database\Seeder;

use Anomaly\Streams\Platform\Database\Seeder\Seeder;
use Anomaly\PagesModule\Page\Contract\PageRepositoryInterface;
use Anomaly\PagesModule\Type\Contract\TypeRepositoryInterface;

class PageSeeder extends Seeder
{

    /**
     * The page repository.
     *
     * @var PageRepositoryInterface
     */
    protected $pageRepository;

    /**
     * The type repository.
     *
     * @var TypeRepositoryInterface
     */
    protected $typeRepository;

    // configuration
    protected $type = '';
    protected $title = '';
    protected $slug = '';
    protected $content = null;
    protected $enabled = true;
    protected $home = false;
    protected $layout = '';

    /**
     * Create a new PageSeeder instance.
     *
     * @param PageRepositoryInterface $pageRepository
     * @param TypeRepositoryInterface $typeRepository
     */
    public function __construct(PageRepositoryInterface $pageRepository, TypeRepositoryInterface $typeRepository)
    {
        $this->pageRepository = $pageRepository;
        $this->typeRepository = $typeRepository;
    }

    /**
     * Run the seeder.
     */
    public function run()
    {
        $this->checkRequired();

        if ($page = $this->pageRepository->findBy('slug', $this->slug)) {
            // you MUST call forceDelete() or you will get integrity constraint violations
            $this->pageRepository->forceDelete($page);
        }

        $type = $this->typeRepository->findBySlug($this->type);

        if (! $type) {
            throw new \Exception("Page type not found: $this->type");
        }

        $data = [
            'en'           => [
                'title' => $this->title,
            ],
            'slug'         => $this->slug,
            'type'         => $type,
            'enabled'      => $this->enabled,
            'home'         => $this->home,
            'theme_layout' => $this->layout ?: 'theme::layouts/default.twig',
        ];

        if ($this->content) {
            $data['entry'] = $type->getEntryModel()->create([
                'en' => [
                    'content' => $this->content,
                ],
            ]);
        }

        $this->pageRepository->create($data)->allowedRoles()->sync([]);
    }

    private function checkRequired()
    {
        if (! $this->type || ! $this->title || ! $this->slug) {
            throw new \Exception('Required page seeder values were not set');
        }
    }
}