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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. 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: <html> <body> <div id="stuff">Here is some stuff</div> <form target="frame" action="form_action"> <input type="file" name="uploaded_file"/> <input type="submit"/> </form> <iframe id='frame' name="frame"></iframe> </body> </html>
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