Registering custom Translator Loader in Zend Framework 2

I'm trying to register a custom database translator loader.

For that i was inspired by: Feeding Zend Translator

I have the following facotry code in (module.config.php):

'service_manager' => array(
    'factories' => array(
        'translator' => function($sm){
            $translator = new \V1\Service\DatabaseTranslationService();
            return $translator->createService($sm);
        },
    ),
),

The DatabaseTranslationService looks like that:

$config = $serviceLocator->get('Config');
    $trConfig = isset($config['translator']) ? $config['translator'] : array();
    $translator = new \Zend\I18n\Translator\Translator();
    $translator->getPluginManager()->setInvokableClass('database', '\Foo\I18n\Translator\Loader\DatabaseTranslator', true);
    $translator->addTranslationFile('database', 'en_EN');

    return $translator;

But it seems like "setInvokableClass" isn't used: I got this error:

Zend\ServiceManager\ServiceManager::get was unable to fetch or create an instance for database

Does anybody know how to registering the Translator correctly

After two days of search I've found a solution.

I don't know if it's a good solution, but it works for me.

Replace the line:

$translator->getPluginManager()->setInvokableClass('database', '\Foo\I18n\Translator\Loader\DatabaseTranslator', true);

with

$viewHelper = $serviceLocator->get('viewHelperManager');
$viewHelper->setInvokableClass('database', '\Foo\I18n\Translator\Loader\DatabaseTranslator', true);

I hope this solution helps you.