class Fedora::Repository

def update(object)
  raise ArgumentError, "Missing pid attribute" if object.nil? || object.pid.nil?
  case object
  when Fedora::FedoraObject
    response = connection.put("#{url_for(object)}?" + object.attributes.to_fedora_query)
    response.code == '200' || '307'
  when Fedora::Datastream
    raise ArgumentError, "Missing dsID attribute" if object.dsid.nil?
    response = connection.put("#{url_for(object)}?" + object.attributes.to_fedora_query, object.blob)
    response.code == '200' || '201'
    return response.code
  else
    raise ArgumentError, "Unknown object type"
  end
end