/**
  * Delete user account connection
  * @param $userAuthId
  * @return false|int
  * @throws
  */
 public static function disconnect($userAuthId)
 {
     if (\Yii::$app->user->isGuest) {
         throw new UnauthorizedHttpException(\Yii::t('user', 'Guests can not disconnect accounts'));
     }
     $user = \Yii::$app->user->identity;
     if (empty($user->password) && count($user->userAuths) < 2) {
         throw new ErrorException(\Yii::t('user', 'Can not disconnect single authentication method. Please fill email and password and try again'));
     }
     $userAuth = UserAuth::findOne($userAuthId);
     if ($userAuth->user_id != \Yii::$app->user->id) {
         throw new UnauthorizedHttpException(\Yii::t('user', 'Сan not disconnect a foreign account'));
     }
     return $userAuth->delete();
 }