Long pulling with Laravel

feed.php

<?php

class Feed_Controller extends Base_Controller
{
    public $layout = 'layouts.feed';

    public function get_index()
    {
        $records = Record::where_deleted(0)
            ->order_by('updated_at', 'desc')
            ->take(50)
            ->get();

        $data = array(
            'records' => $records
        );

        $this->layout->nest('content', 'feed.index', $data);
    }

    public function post_pull()
    {
        if (Auth::guest())
            exit;

        $account = Auth::user()->account();
        $max_attempts = 150;
        $attempts = 0;

        $updated_at = Input::has('updated_at') ? Input::get('updated_at') : 0;

        while (1) {
            $current_record = Record::where_account_user_id($account->id)
                ->order_by('updated_at', 'desc')
                ->first();

            if (strtotime($current_record->updated_at) > strtotime($updated_at))
                break;

            Log::pull($current_record->id);

            ++$attempts;

            if ($attempts >= $max_attempts)
                exit;

            sleep(3);
        }

        $data['page'] = "";
        $records = Record::where_account_user_id($account->id)
            ->order_by('updated_at', 'desc')
            ->take(50)
            ->get();

        foreach ($records as $record) {
            if (! isset($data['updated_at']))
                $data['updated_at'] = $record->updated_at;

            // your $data goes here.
        }

        return json_encode($data);
    }
}

index.blade.php

@section('title')
    Feed
@endsection

@section('content')
    <div class='row-fluid mtl'>
        <div class='span12 feed'>

        </div>
    </div>
@endsection

@section('scripts')
    <script>
        (function() {
            var updated_at = 0;

            function waitForMsg() {
                $.post('/feed/pull', { updated_at: updated_at }, function(data){
                    var json  = jQuery.parseJSON(data);
                    $('.feed').prepend(json.page);
                    $('.feed .widget').slideDown('fast');

                    updated_at = json.updated_at;
                    setTimeout(function(){
                        waitForMsg()
                    }, 1000);
                });
            }

            waitForMsg();
        })();
    </script>
@endsection