public function actionRestore()
 {
     $model = new Database();
     if ($restoreFile = Yii::$app->request->get('file')) {
         if (!$model->restore($restoreFile)) {
             Yii::$app->session->setFlash('error', Yii::t('System', 'database_backup_not_found'));
         } else {
             Yii::$app->session->setFlash('success', Yii::t('System', 'database_restore_success'));
         }
         return $this->redirect('index');
     }
     return $this->render('restore', ['backupFiles' => $model->getBackupFiles()]);
 }