Rails 3.2 route-based custom JQuery events

custom_events.js.erb

$(function(){
  var controllers = <%=
    actions = {}
    Rails.application.routes.routes.each do |route|
      if route.defaults.include?(:controller)
        actions[route.defaults[:controller]] ||= []
        actions[route.defaults[:controller]] << route.defaults[:action] if route.defaults.include?(:action)
      end
    end
    actions.to_json %>;

  $(document).ready(function(){
    $.each(controllers, function(controller, actions){
      controller = controller.replace('/', '-');

      if ( $('html').is('.'+controller ) )
        $(document).trigger(controller+'-ready')

      $.each(actions, function(i, action){
        if ( $('html').is('.'+controller+'.'+action ) )
          $(document).trigger(controller+'#'+action+'-ready')
      });
    });
  });
});

devise.js.coffee

$ ->
  $(document).bind 'devise-sessions-ready', () ->
    console.log 'yo'

  $(document).bind 'devise-sessions#new-ready', () ->
    console.log 'time to log in, fool.'