hgraca / explicit-architecture-php

use Acme\App\Presentation\Web\Core\Port\Paginator\PaginatorFactoryInterface;

use Acme\App\Presentation\Web\Core\Port\Paginator\PaginatorInterface;

final class GetHtmlViewModel implements TemplateViewModelInterface

{

    /**

     * @var PaginatorInterface [string, string, string, DateTimeInterface, string, string[]]

     */

    private $postList;

    /**

     * The view model constructor depends on the most raw elements possible.

     * In this case the view model constructor is private, so that we force the usage of the named constructor.

     * We want this because it is not possible to have the a constructor with the raw data, since it is a list of data.

     */

    private function __construct(PaginatorInterface $postList)

    {

        $this->postList = $postList;

    }

    /**

     * We create named constructors for the cases where we need to extract the raw data from complex data structures.

     */

    public static function fromPostDtoList(

        PaginatorFactoryInterface $paginatorFactory,

        int $page,

        LatestPostWithAuthorAndTagsDto ...$postDtoList

    ): self {

        $postDataList = [];

        foreach ($postDtoList as $postDto) {

            $postDataList[] = [

                'title' => $postDto->getTitle(),

                'summary' => $postDto->getSummary(),

                'slug' => $postDto->getSlug(),

                'publishedAt' => $postDto->getPublishedAt(),

                'authorFullName' => $postDto->getAuthorFullName(),

                'tagList' => $postDto->getTagList(),

            ];

        }

        $paginator = $paginatorFactory->createPaginator($postDataList);

        $paginator->setCurrentPage($page);

        return new self($paginator);

    }

    public function getPostList(): PaginatorInterface

    {

        return $this->postList;

    }

}

use Acme\App\Presentation\Web\Core\Port\Paginator\PaginatorFactoryInterface;

use Acme\App\Presentation\Web\Core\Port\Paginator\PaginatorInterface;

final class GetXmlViewModel implements TemplateViewModelInterface

{

    /**

     * @var PaginatorInterface [string, string, string, DateTimeInterface, string, string[]]

     */

    private $postList;

    /**

     * The view model constructor depends on the most raw elements possible.

     * In this case the view model constructor is private, so that we force the usage of the named constructor.

     * We want this because it is not possible to have the a constructor with the raw data, since it is a list of data.

     */

    private function __construct(PaginatorInterface $postList)

    {

        $this->postList = $postList;

    }

    /**

     * We create named constructors for the cases where we need to extract the raw data from complex data structures.

     */

    public static function fromPostDtoList(

        PaginatorFactoryInterface $paginatorFactory,

        int $page,

        LatestPostWithAuthorAndTagsDto ...$postList

    ): self {

        $postDataList = [];

        foreach ($postList as $post) {

            $postDataList[] = [

                'title' => $post->getTitle(),

                'summary' => $post->getSummary(),

                'slug' => $post->getSlug(),

                'publishedAt' => $post->getPublishedAt(),

                'authorFullName' => $post->getAuthorFullName(),

                'authorEmail' => $post->getAuthorEmail(),

                'tagList' => $post->getTagList(),

            ];

        }

        $paginator = $paginatorFactory->createPaginator($postDataList);

        $paginator->setCurrentPage($page);

        return new self($paginator);

    }

    public function getPostList(): PaginatorInterface

    {

        return $this->postList;

    }

}