protected function mapClassParameters(array $classes, ContainerBuilder $container)
    {
        foreach ($classes as $model => $serviceClasses) {
            foreach ($serviceClasses as $service => $class) {
                $container->setParameter(
                    sprintf(
                        'opifer_cms.%s_%s',
                        $model,
                        $service
                    ),
                    $class
                );
            }
        }
    }