function sortingFormSucceeded($form = \Nette\Forms\FilterForm)
{
$filter = array_filter($form->getValues(TRUE));
unset($filter["do"], $filter["action"], $filter["category"]);
$pageDb = new Page($this->database);
$page = $pageDb->getPageById($form->values->category);
$this->presenter->redirectUrl("/" . $page->slug . "?" . http_build_query($filter));
}
