/**
* Lists all models.
*/
public function actionIndex()
{
$dataProvider = new CActiveDataProvider('Users');
$permissionObj = new PermissionGroups();
$userTypes = CHtml::listData($permissionObj->getAllUserType(), 'id_group', 'name');
$this->render('index', array('dataProvider' => $dataProvider, 'userTypes' => $userTypes));
}