PHP: One object can be created from many others, where is the right place to place factories?

Question

PHP

Initial disposition: there are objects of type Video that can be created and initialized with some kind of logic by objects of other types News, Post, Episode - these objects are not related to each other. The question is how to properly distribute factories between classes?
Option 1:

Class News {
   public function createVideo()  {
       $video = new Video;
       $video->title = $this->title;
       $video->picture_id = $this->picture_id;
       $video->save();
 
       $link = new News_Video;
       $link->news_id = $this->id;
       $link->video_id = $video->id;
       $link->save();
 
       return $video;
  }
}
 
Class Post {
   public function createVideo()  {
      //
  }
}

Class Episode {
   public function createVideo()  {
      //
  }
}

$news = NewsStorage::find(1);
$video = $news->createVideo();

Option 2

Class Video {
   static public function createFromNews( News $news )  {
       $video = new self;
       $video->title = $news->title;
       $video->picture_id = $news->picture_id;
       $video->save();
 
       $link = new News_Video;
       $link->news_id = $news->id;
       $link->video_id = $news->id;
       $link->save();
 
       return $video;
  }

  static public function createFromPost( Post $post )  {
    //
  }

  static public function createFromEpisode( Episode $episode )  {
    //
  }
}
 
$news = NewsStorage::find(1);
$video = Video::createFromNews($news);

It seems to me that the second option is more correct, due to the fact that the logic of all ways to create a Video is encapsulated in the class itself, on the other hand, the first option seems to be more understandable from the point of view of human logic.

Answer 1

This is a purely technical issue. In the second option, your method is not bound to the class(es). In the first one, you have a reference to $this, so it's already OOP. The code from the first example will be easier to understand in a year.

Answer 2

As far as I understand, Video has a certain number of fields that are filled regardless of the type of object (News, Post or Episode). If this is the case, then it is enough just to make sure that the classes have the same field names (title, picture_id) required to create an object of the Video type. This can be done, for example, using an abstract class or an interface.
It will come out something like this:

Class News {
   public function createVideo($entity)  {
       $video = new Video;
       $video->title = $entity->title;
       $video->picture_id = $entity->picture_id;
       $video->save();
 
       $link = new News_Video;
       $link->news_id = $this->id;
       $link->video_id = $video->id;
       $link->save();
 
       return $video;
  }
}

If there is some custom logic for each class, you can stuff it into swich.