class ActiveFedora::Associations::IndirectlyContainsAssociation

def find_target
  if container_predicate = options[:has_member_relation]
    uris = owner.resource.query(predicate: container_predicate).map { |r| r.object.to_s }
    uris.map { |object_uri| klass.find(klass.uri_to_id(object_uri)) }
  else # is_member_of_relation
    # TODO this is a lot of reads. Avoid this path
    container_predicate = ::RDF::Vocab::LDP.contains
    proxy_uris = container.resource.query(predicate: container_predicate).map { |r| r.object.to_s }
    proxy_uris.map { |uri| proxy_class.find(proxy_class.uri_to_id(uri))[options[:foreign_key]] }
  end
end