php - Silex, using Twig in service -

i'm creating application in silex. want use twig render templates in service loading pimple. need mailer class.

i started writing application based on silex-skeleton, have twig environment in $app['twig']. problem is, when want pass service:

//app.php $app['somemodel'] = function ($app) {     return new somemodel($app['twig']); }; 

when i'm writing this, twig stops working. subpages show:

twig_error_loader: template "(path).html.twig" not defined ().

i've tried trick:

//app.php $app['somemodel'] = function ($app) {     return new somemodel($app); };  //somemodel.php class somemodel {     private $twig;      public function __construct($app)     {         $this->twig = $app['twig'];     } } 

but breaks twig. i've tried assign , clone $app['twig'] variable, happens.

//app.php $variable = $app['twig']  //app.php $variable = clone $app['twig'] 

how can use twig in service in silex?

$app->register(new silex\provider\twigserviceprovider(),    array('twig.path' => __dir__.'/views', )); 

to more information have silex documentation.