A Rails Responder for mrss

api_responder.rb

class ApiResponder < ActionController::Responder

  # MRSS is not a 'real' type.
  # The Media RSS specification builds on top of the RSS
  # specification.  We want to use the following formats
  # in our application...
  #  - xml
  #  - json
  #  - rss
  #  - mrss
  #
  # Adding a custom extension, and building a responder
  # seems like the right way to do this.

  # Is the the proper way of building a Responder?

  def to_mrss
    render :text => resource.to_mrss, :content_type => Mime::XML
  end
end