Listing 29.2. Zarys metody render() klas Zend_Form oraz Zend_Form_Element
public function render(Zend_View_Interface $view = null)
{
    ...
    $content = '';
    foreach ($this->getDecorators() as $decorator) {
        $decorator->setElement($this);
        $content = $decorator->render($content);
    }
    ...
    return $content;
}