laravel eloquent nested comment and replies

Question

Few days ago, I saw a website where users can comment on a post. Other users can reply on that. and a replay can have replies like the example screenshot below..

So

Answer 1

Swap reply_id with a nullable() parent_id. So basically you want to know if a comment has a parent.

Then in Comment model, add a self relationship to take all comments whose parent_id match.

public function replies() {
    return $this->hasMany('App\Comment', 'parent_id');
}

In your view you can have nested loops for each comments and its replies

@foreach($comments as $comment) 
   {{ $comment->content }}

   @if ( $comment->replies )
       @foreach($comment->replies as $rep1)
           {{ $rep1->content }}
           ...
       @endforeach
   @endif
@endforeach