abstract class AdminController extends CController
{
abstract public function getModel($scenario);
public function actionCreate()
    {
        $model= $this->getModel('');
        if(isset($_POST[get_class($model)]))
        {
            $model->attributes=$_POST['Users'];
            if($model->save())
                $this->redirect(array('view','id'=>$model->id));
        }
        $this->render('create',array(
            'model'=>$model,
        ));
    }
}

class DefaultController extends AdminController
{
public function getModel($scenario)
    {
        return new Users($scenario);
    }
}