/**
  * Sets variables for view of "Archive" page
  */
 public function renderArchive()
 {
     $template = $this->template;
     $template->title = "Archiv knihy návštěv";
     $posts = $this->guestbook->getAllViewable();
     $vp = new \VisualPaginator($this, 'vp');
     $page = $vp->page;
     $paginator = $vp->getPaginator();
     $paginator->setItemCount($posts->count());
     $paginator->setItemsPerPage(10);
     $paginator->setPage($page);
     $template->posts = $posts->limit($paginator->getLength(), $paginator->getOffset());
 }