unable to add symfony service as a volume driver

[linasm83]

Hi,

My config:

fm_elfinder:
    instances:
        default_phpcr:
            connector:
                roots:
                    media:
                        driver: cmf_media.adapter.elfinder.phpcr_driver

Getting the error:

[Symfony\Component\Config\Definition\Exception\InvalidConfigurationException]                                                                                             
  Invalid configuration for path "fm_elfinder.instances.default_phpcr.connector.roots.media.driver": Invalid filesystem driver ""cmf_media.adapter.elfinder.phpcr_driver"" 

So it looks like it doesn't pass configuration validation in DependencyInjection\Configuration:

->scalarNode('driver')
    ->isRequired()
    ->validate()
    ->ifNotInArray(array('LocalFileSystem', 'FTP', 'FTPIIS', 'Dropbox', 'S3'))
       ->thenInvalid('Invalid filesystem driver "%s"')
    ->end()

If i'm not missing something then there's no way to implement custom driver at the moment until this validation exists or it is not altered in some way (issue exists only in version 2.*)

[linasm83]

Sorry missed that already is a featured request there #66