View models

A view model is a specialized immutable dto, linked to a single template. It just contains the minimum necessary datas. The only logic allowed is related to presentation.

final class PostViewModel
{
    public function __construct(
        private PostId $postId, 
        private string $title, 
        private string $slug
    ) {
    }

    public static function fromPost(Post $post): self
    {
        return new self($post->getId(), $post->getTitle(), $post->getSlug());
    }

    public function getPostId(): PostId
    {
        return $this->postId;
    }

    public function getTitle(): string
    {
        return $this->title;
    }

    public function getSlug(): string
    {
        return $this->slug;
    }
}
  