src/Tomahawk/Bundle/DoctrineBundle/Command/Proxy/CommandHelper.php
static public function setApplicationEntityManager(Application $application, $emName)
    {
        /** @var $em \Doctrine\ORM\EntityManager */
        $em = $application->getKernel()->getContainer()->get('doctrine')->getManager($emName);

        $helperSet = $application->getHelperSet();
        $helperSet->set(new ConnectionHelper($em->getConnection()), 'db');
        $helperSet->set(new EntityManagerHelper($em), 'em');
    }
static public function setApplicationEntityManager(Application $application, $emName)
    {
        /** @var $em \Doctrine\ORM\EntityManager */
        $em = $application->getKernel()->getContainer()->get('doctrine')->getManager($emName);

        $helperSet = $application->getHelperSet();
        $helperSet->set(new ConnectionHelper($em->getConnection()), 'db');
        $helperSet->set(new EntityManagerHelper($em), 'em');
    }
Convenience method to push the helper sets of a given entity manager into the application.

@param Application $application
@param string      $emName