/**
  * @return \yii\web\Response
  */
 public function actionSavedb()
 {
     $this->module->dbSave();
     if (\Yii::$app->request->isAjax) {
         echo 'ok';
     } else {
         \Yii::$app->session->setFlash('success', Redisman::t('redisman', 'database saving run in background'));
         return $this->redirect(['index']);
     }
 }