/**
  * Deletes an existing Setting.
  * If deletion is successful, the browser will be redirected to the 'index' page.
  * @param integer $id
  * @return mixed
  */
 public function actionDelete($section)
 {
     if (Yii::$app->request->isPost) {
         Setting::deleteAll('section=:sect', [':sect' => $section]);
         //$this->findModel($id)->delete();
     }
     return $this->redirect(['index']);
 }