public function accessRules()
{
return array(array('allow', 'actions' => array('index', 'view'), 'users' => array('*')), array('allow', 'actions' => array('create', 'update'), 'users' => array('@')), array('allow', 'actions' => array('admin', 'delete'), 'users' => array('admin')), array('deny', 'users' => array('*')));
}