public function actionIndex()
{
$model = new PaperApprovalBus();
$model->unsetAttributes();
if (isset($_GET['PaperApprovalBus'])) {
$model->attributes = $_GET['PaperApprovalBus'];
}
$this->render('index', array('model' => $model, 'dataProvider' => $model->getPaperDoneBus()));
}
