yii Action classes as subcontrollers for virtual paths

class RblocksController extends Controller{
//...
    public function actions(){
    // return external action classes, e.g.:
        return array(
            'links'=>$this->getModule()->id.'.controllers.'.$this->id.'.linksActions',
        );
    }
}

class LinksActions extends CAction{

    public function run(){
        $r = yii::app()->getUrlManager()->parseUrl(yii::app()->getRequest());
        $controller = $this->getController()->getId().'/'.$this->id;
        $r = trim(substr($r,strpos($r,$controller)+strlen($controller)),'/');
        $path = explode('/', $r);
        $action = $path[0]?:'index';
        if (yii::app()->request->getIsPostRequest() && method_exists($this, $action.'Post')){
            $action .= 'Post';
        }elseif (!method_exists($this, $action)){
            $this->getController()->missingAction($action);
        }
        $this->$action();
    }

    public function index(){
        $model = MangaLinks::model()->findAll();
        $this->getController()->render('links',array('model'=>$model));
    }

}