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Looping nested comments in Laravel 8.x

In Laravel 8.x I am trying to create a blog comment system which allows you to reply to comments. If replying to a comment, the comment is assigned a parent_id which is the id of the comment they are replying to. Currently when I loop the comments with the replies, it will only output a reply 1 loop deep like the example below:

Current example of the problem:

User1: Random post 1..
> User2: This text is a response to User1 for post 1
User6: Random post 2..
User7: Random post 3..

What I am trying to achieve:

User1: Random post 1..
> User2: This text is a response to User1 for post 1
>> User3: This text is a response to User2 for post 1
>>> User4: This text is a response to User3 for post 1
>>> User5: This text is a response to User3 for post 1
User6: Random post 2..
User7: Random post 3..

My current code

Model:

class PostComment extends Model
{
    use HasFactory;

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

Blade:

@foreach ($comments as $comment)

    <p> {{ $comment->user->name }} : {{ $comment->comment }} </p>

    @foreach ($comment->replies as $reply)

        <p> {{ $reply->user->name }} : {{ $reply->comment }} </p>

    @endforeach

@endforeach

Now if I add @foreach ($comment->replies as $reply) 4 times within the comment loop, it will display the replies.. but of course this isn't practical since there can be unlimited responses to a comment. I hope you can understand what I'm trying to get at, I'm awfully bad at explaining things.

Any help is really appreciated :)

over 4 years ago · Santiago Trujillo

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Accepted Answer · 2022-06-01T14:35:37.892Z

create two blade files

comment-list.blade.php
child-comment-list.blade.php

In comment-list.blade.php file

@if(count((array)$comments))
    @foreach ($comments as $comment)
    
        <p> {{ $comment->user->name }} : {{ $comment->comment }} </p>
    
       @include('child-comment-list',['comments'=>$comment->replies])
    
        @endforeach
@endif

In child-comment-list.blade.php file

@if(count((array)$comments))
 @foreach($comments as $comment)
 
  <p> {{ $comment->user->name }} : {{ $comment->comment }} </p>
   @if(count((array)$comment->replies))

            @include('child-comment-list',['comments'=>$comment->replies])

   @endif
 @endforeach

So in your current file

@include('comment-list',['comments'=>$comments]);

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