Categories - Как сделать вывод только главной категории? - ZOO 2.х

public function render($params = array()) {
 
		$params = $this->app->data->create($params);
		$values = array();
		foreach ($this->_item->getRelatedCategories(true) as $category) {
			$values[] = $params->get('linked')? '<a href="'.JRoute::_($this->app->route->category($category)).'">'.$category->name.'</a>' : $category->name;
		}
 
		return $this->app->element->applySeparators($params->get('separated_by'), $values);

$category_id = $view->params->get('config.primary_category');

или

$category_id = $this->_item->params->get('config.primary_category');

public function render($params = array()) {
 
		$params = $this->app->data->create($params);
		$values = array();
$categories = $this->app->table->category->getById($this->_item->params->get('config.primary_category', array()), true);
		foreach ($categories as $category) {
			$values[] = $params->get('linked')? '<a href="'.JRoute::_($this->app->route->category($category)).'">'.$category->name.'</a>' : $category->name;
		}
 
		return $this->app->element->applySeparators($params->get('separated_by'), $values);
	}