public function actionSave_link()
 {
     if (isset($_POST['cancel'])) {
         $this->redirect($this->createAbsoluteUrl('default/list_links', $_GET));
     }
     if (isset($_POST['delete'])) {
         $this->actionDelete_link();
         $this->redirect($this->createAbsoluteUrl('default/list_links', $_GET));
     }
     if (isset($_GET['link_id'])) {
         $model = Links::model()->findByPk($_GET['link_id']);
     } else {
         $model = new Links();
     }
     if (isset($_POST['Links'])) {
         $model->attributes = $_POST['Links'];
         if ($model->validate()) {
             $model->save();
             $this->redirect($this->createAbsoluteUrl('default/list_links', $_GET));
         }
     }
     $this->render('links/save_link', array('model' => $model));
 }