Prekreslenie komponenty ajaxom

Zdravím, robím nejaké pokusy s quickstartom. Snažím sa z komentárov a formuláru na pridanie komentáru spraviť komponentu. V podstate som to zvládol, či tým naj spôsobom to nvm, ale funguje. Problém je len v tom že sa mi komponenta nedarí prekresliť ajaxom, fórum som prešiel ale nenašiel som takýto problém. Vie mi niekto poradiť čo robím zle?

používam jQuery JavaScript Library v2.1.0 a AJAX Nette Framework plugin for jQuery

firefox konzola – sieť mi hodí HTTP/1.1 500 Internal Server Error

komponenta – CommentsControl.php

namespace App;
use Nette;

class CommentsControl extends Nette\Application\UI\Control
{
	private $database;

	public function __construct(Nette\Database\Context $database)
	{
		parent::__construct();
		$this->database = $database;
	}

	public function render()
	{
		$template = $this->template;
		$template->setFile(__DIR__ . '/CommentsControl.latte');
		$template->render();
	}

	protected function createComponentCommentForm()
	{
		$form = new Nette\Application\UI\Form;
		$form->addText('name', 'Meno:');
		....
		$form->onSuccess[] = $this->commentFormSucceeded;
		$form->addSubmit('send', 'Pridať komentár');
		$form->getElementPrototype()->class('form-horizontal ajax');
		return $form;
	}

	public function commentFormSucceeded(Nette\Application\UI\Form $form)
	{
		$values = $form->getValues();
		$postId = $this->presenter->getParameter('postId');
		$this->database->table('comments')->insert(array(
			'post_id' => $postId,
			'name' => $values->name,
			'email' => $values->email,
			'content' => $values->content,
		));
		// po odoslani formu prebehne zápis do db no k prekresleniu ajaxom už nedojde
		$this->flashMessage('Ďakujeme za komentár', 'alert-success');
		if (!$this->presenter->isAjax())
			$this->presenter->redirect('this');
		else {
			$form->setValues(array(), TRUE);
			// skúšal som už aj $this->presenter->redrawControl(); a nič ..neviem čo iné skúsiť
			$this->redrawControl();
		}
	}
}

šablóna - CommentsControl.latte

{snippet comments}


<div class="comments">
	<h2>Komentáre k článku:</h2>
	<div n:if="count($comments) == '0'">Článok zatiaľ nik nekomentoval</div>
	{foreach $comments as $comment}
		<div class="comment">
			<div class="comment-header">
				<a n:href="commentDelete! $comment->id" n:if="$user->loggedIn" class="pull-right ajax"><span class="glyphicon glyphicon-remove"></span></a>
				<b><a href="mailto:{$comment->email}" n:tag-if="$comment->email">{$comment->name}</a></b>
				<small> {$comment->created_at|date:'d. m. Y H:i:s'}</small>
			</div>
			<div class="comment-content">{$comment->content}</div>
		</div>
	{sep}<div class="separator"></div>{/sep}
	{/foreach}
</div>

<div class="addcomment">
	<h2>Pridajte komentár</h2>
	{control commentForm}
</div>

{/snippet}

presenter - PostPresenter.php

	/**
	 * @return CommentsControl
	 */
	protected function createComponentComments()
	{
		$comments = new CommentsControl($this->database);
		$comments->template->comments = $this->comments;
		$comments->template->user = $this->user;
		return $comments;
	}