nette ajax, pri scrollu se nacitaji duplicitni videa

Ahoj, snazim se vyresit nacitani novych videi pri scrollovani ajaxem.

V sablonce mam:

{block content}
   <div id="photo-gallery" class="gallery">
       {snippet reloadAllVideos}
           <div n:snippet="listVideos" data-ajax-append="true">
               {foreach $videos as $v}
                   <div class="gallery-photo-container">
                       <a class="gallery-photo ajax" title="{$v->title}" n:href="show! $v->id" data-gallery>
                           <img src="{= $v->cdn_img_url_before.$v->img_url}" alt="Play video">
                       </a>
                   </div>
               {/foreach}
           </div>
       {/snippet}
   </div>
{/block}

Defaultni akce:

class HomepagePresenter extends BasePresenter
{
	public function actionDefault()
	{
		if (!isset($this->template->videos)){
			$this->template->videos = $this->videos->getVideos(32, $this->getDegugMode(), false);
		}
	}
}

Handle akce:

public function handleAddVideos()
  {
      $httpRequest = $this->getHttpRequest();

      if ($httpRequest->isMethod('POST') && $this->isAjax()) {
          $category =  (array_key_exists('category', $this->params)) ? $this->params['category'] : 'All';
          $dateFrom = end($this->template->videos)->published;

          $debug     = $this->getDegugMode();
          $newVideos = $this->videos->search($dateFrom, $category, 32, $debug);

          $this->template->videos = $newVideos;
          $this->redrawControl('listVideos');
      }
  }

Vse vicemene funguje, pri 1. scrollu se nactou nova videa, ale po kazdem dalsim se nacitaji jedna a ta sama :/

Problem nejspise bude v $this->template->videos, kde na zacatku se snazim ziskat datum publikovani posledniho videa, tu promenou plnim pred prekleslenim novymi videi, mam tedy za to, ze pri dalsim handle requestu budu mit $this->template->videos naplneno novymi videi, nebo se pletu?

Diky moc za objasneni!