rest_foundation.rb

representation "text/html", "application/xhtml+xml" do
  transitions do
    view  "Edit page", Site/Page/URL, "application/vnd.com.example.wiki.page.editable"

    view  "View raw contents",          Site/Page/URL, "text/plain"
    view  "Show page history",          Site/History/URL
    view  "Other pages under #{path}",  Site/Pages/path
  end

  response_is("text/html") { processor.call request }

  rendered_by Hoshi, :from => "p/page.rb"
end

representation "application/vnd.com.example.wiki.page.editable" do
  transitions do
    view    "Cancel Editing",             Site/Page/URL     # GET default MIME
    view    "View raw contents",          Site/Page/URL,    "text/plain"
    view    "Show page history",          Site/History/URL
    view    "Other pages under #{path}",  Site/Pages/path
    delete  "Delete This Page",           Site/Page/URL     # DELETE
    update  "Commit Your Changes",        Site/Page/URL     # POST
  end

  response_is("text/html") { processor.call request }
  rendered_by Hoshi, :from => "p/editable_page.rb"

end