private static function ensureLanguageSetForUser($currentUser)
{
$lang = \Piwik\Plugins\LanguagesManager\API::getInstance()->getLanguageForUser($currentUser);
if (empty($lang)) {
\Piwik\Plugins\LanguagesManager\API::getInstance()->setLanguageForUser($currentUser, LanguagesManager::getLanguageCodeForCurrentUser());
}
}