AJAX handle a prenos dat ve tride

Chci se zeptat zda jde udelat tato vec, pravdepodobne ne, protoze mi to nefunguje. Mzslel jsem, ze si v handle ulozim do promene catFail data a pak pouziju pri render. Kdyz jsem koukal na zivotni cyklus tak by to melo fungovat. Pokud v handle pouziji $this->catFil = TRUE; tak to funguje, ale data z $category se nenactou.

presenter:

<?php
class Admin_ProduktyPresenter extends AdminPresenter
{
    private $catFil = NULL;

    public function renderDefault() {
        $OProdukty = new Admin_ProduktyModels();
        if ($this->isAjax()) {
            $this->invalidateControl('list1'); }

        $this->template->products = $OProdukty->showProductAll($this->catFil);
        $this->template->cat = $this->catFil;

    }

    public function handleCatFilter($category) {
        $this->catFil = $category;
        if (!$this->isAjax())
            $this->redirect('this');
        else {
            $this->invalidateControl('list3');
        }

    }
?>

template:

<?php
<a href="{link catFilter!, $cat->category}" class="ajax">{$cat->category}</a>
?>