unobtrusive AJAX

gistfile1.txt

# in the view
  
= form_for([:forge, @job, job_application], :remote => true) do |f|

# in the JS header portion of the view

$("form").on("ajax:success", function(data, status, xhr) {
  alert("Success");
});

# in the controller, just make sure you handle format.js, and use render :nothing => true, NOT render :text => "Success"

  def update
    @job_application.resume = nil if params[:remove_asset] == "1"
    if @job_application.update_attributes(params[:job_application])
      respond_to do |format|
        format.html do
          flash[:notice] = 'Job application was successfully updated.'
          redirect_to(forge_job_job_applications_path(@job_application.job_id))
        end
        format.js { render :nothing => true } # caution: render :text => "Success" will not trigger ajax:success
      end
    else
      respond_to do |format|
        format.html { render :action => "edit" }
        format.js { render :text => "Failure", :status => 500 }
      end
    end
  end