osem-fcy/app/controllers/admin/emails_controller.rb

class Admin::EmailsController < ApplicationController
  before_filter :verify_organizer

  def update
    @conference.email_settings.update_attributes(params[:email_settings])
    redirect_to(admin_conference_emails_path(
                @conference.short_title),
                notice: 'Settings have been successfully updated.')
  end

  def index
    @settings = @conference.email_settings
  end
end