Laravel relationship `whereNotIn` other table

I am trying to return all Posts(Model:Post) which have no row in the PostsHistory Model.

My code is:

public function posts(){
    return $this->hasMany('App\Post');
}

public function remaining_posts(){
    $history = PostHistory::all()->pluck('id');
    return $this->posts->whereNotIn('post_id', $history);
}

But I get an error

[BadMethodCallException]      
  Method whereNotIn does not exist.

Is there any way I could get the remaining_posts through a relationship or can only be done in the controller?

via Chebli Mohamed