RespondsToParent

Adds responds_to_parent to your controller to respond to the parent document of your page. Make Ajaxy file uploads by posting the form to a hidden iframe, and respond with RJS to the parent window.

http://sean.treadway.info/responds-to-parent/

Example

Controller:

class Test < ActionController::Base def main end

def form_action
  # Do stuff with params[:uploaded_file]

  responds_to_parent do
    render :update do |page|
      page << "alert($('stuff').innerHTML)"
    end
  end
end

end

main.rhtml:

  <form target="frame" action="form_action">
    <input type="file" name="uploaded_file"/>
    <input type="submit"/>
  </form>

  <iframe id='frame' name="frame"></iframe>
</body>

Copyright (c) 2006 Sean Treadway, released under the MIT license