public function actionSuggest($q, $version = null, $language = null)
 {
     if (!in_array($version, $this->getVersions())) {
         $version = null;
     }
     if (!in_array($language, array_keys($this->getLanguages()))) {
         $language = null;
     }
     /** @var Command $command */
     $command = Yii::$app->elasticsearch->createCommand();
     $command->index = SearchActiveRecord::index() . '-en';
     $result = $command->suggest(['my-suggestion' => ['text' => $q, 'term' => ['field' => 'body']]]);
     Yii::$app->response->format = Response::FORMAT_JSON;
     if (!$result) {
         return [];
     } else {
         return $result;
     }
 }
 public static function index()
 {
     return parent::index() . '-en';
 }