Symfony\Bundle\DoctrineMongoDBBundle\DependencyInjection\DoctrineMongoDBExtension::getDocumentManagers PHP Method

    protected function getDocumentManagers(array $config, ContainerBuilder $container)
    {
        $defaultDocumentManager = $container->getParameter('doctrine.odm.mongodb.default_document_manager');

        $documentManagers = array();
        if (isset($config['document_managers'])) {
            $configDocumentManagers = $config['document_managers'];
            if (isset($config['document_managers']['document_manager']) && isset($config['document_managers']['document_manager'][0])) {
                // Multiple document managers
                $configDocumentManagers = $config['document_managers']['document_manager'];
            }
            foreach ($configDocumentManagers as $name => $documentManager) {
                $documentManagers[isset($documentManager['id']) ? $documentManager['id'] : $name] = $documentManager;
            }
        } else {
            $documentManagers = array($defaultDocumentManager => $config);
        }
        return $documentManagers;
    }