public function actionCreate()
 {
     $model = new CategoriesDocuments();
     if (isset($_POST['CategoriesDocuments'])) {
         $model->attributes = $_POST['CategoriesDocuments'];
         $model->created = time();
         $model->alias = alias($_POST['CategoriesDocuments']['name']);
         if ($model->save()) {
             Yii::app()->user->setFlash('success', translate('Thêm thành công.'));
             $this->redirect(PIUrl::createUrl('/admin/categoriesDocuments/index'));
         }
     }
     $this->render('create', array('model' => $model));
 }