полнотекстная rss

[programming]

День добрый. Имеется сайт на zend, у сайта есть рсс вида:

Название
дата/время
500 первых символов новости

формируется так:

     * Генерирует RSS
     */
    function feedAction() {
        $sсript = $this->_helper->viewRenderer->getViewScript();
        Zend_Layout::getMvcInstance()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);
        
        //http://cyber.law.harvard.edu/rss/rss.html
        //http://validator.w3.org/feed/
        $category_model = Model_Category::getInstance();
        $news_model = Model_News::getInstance();
        $rss_type = $this->_getParam('type', RSSType::Other);
        $q_select = null;
        if($rss_type == RSSType::Marketgid) {
            $q_select = $category_model->getSelectByCategoryId(array(Model_Category::POLITICS, Model_Category::ECONOMY, Model_Category::ANALYTICS, Model_Category::POWER_BURNS, Model_Category::PHOTO, Model_Category::VIDEO_INTERVIEWS, Model_Category::COMIX, Model_Category::COMMENTS, Model_Category::EXPERTS, Model_Category::KONKURS), 50);
            $q_select = $q_select
                ->where("n.yarss_sight = 'y'")
                ->where("n.main_news_sign = '1'");
        } else if($rss_type == RSSType::UkrNet) {
            $q_select = $category_model->getSelectByCategoryId(array(Model_Category::DOMESTIC, Model_Category::ECONOMY, Model_Category::ANALYTICS, Model_Category::INTERVIEWS, Model_Category::KONKURS, Model_Category::COMMENTS, Model_Category::EXPERTS, Model_Category::COMIX), 50); 
            /* $q_select = $q_select
                ->where("n.yarss_sight = 'y'"); */
        } else {
            $q_select = $news_model->getTopSelect(50);
            $q_select = $q_select
                ->where("yarss_sight = 'y'");
        }
        
        $items = array();
        $this->view->lastBuildDate = null;
        $this->view->rss_type = $rss_type;
        if(($news = Vida_Helpers_DB::fetchAll(null, $q_select)) != null) {
          foreach($news as $n) {
              $item = $news_model->format($n['news_id'], null, false, Model_News::FL_CATEGORIES|Model_News::FL_IMAGES);
              if($this->view->lastBuildDate == null) {
                $this->view->lastBuildDate = $item['rfc_date'];
              }
              //Yandex разрешает только одну рубрику из нескольких
              if($rss_type == RSSType::Yandex && count($item['categories']) > 1) {
                  $item['categories'] = array($item['categories'][count($item['categories']) - 1]); //берем последнюю категорию
                }
              $items[] = $item;
          }
        }
        $this->view->items = $items;
        $this->view->siteurl = get_option('siteurl');
        $this->view->title = get_option('rss_title');
        $this->view->description = get_option('rss_description');
        $this->view->link = get_option('rss_link');
        
        $contextSwitch = $this->_helper->getHelper('contextSwitch');
        $contextSwitch->initContext('xml_rel');
        
        $data = $this->view->render($sсriрt);
        $response = $this->getResponse();
        $response->setBody($data);

    }

Как сделать, чтобы выдавались не первые 500 символов, а весь текст статьи?