I implemented an achievements system in my application. Everything works perfectly. I would like to add a feature that creates a pop up (modal dialog box, I am using jquery) when my achievement is triggered. So, I don't really know how do I handle the dialog creation, logically I should put in my observer method (right?), but I don't really know how to start. I would like to have some pointers.

Thank you.

class MyFirstCarObserver < ActiveRecord::Observer
  observe :user_car

  def after_save(user_car)
    MyFirstCar.award_achievements_for(user_car.user)
    # Need to create a dialog box
  end
end

• ruby-on-rails

I have similar code where I set a session variable (session[:alert]) and then later in my application layout file I have a line that puts the content of session[:alert], if there is any, into a Javascript dialog box. This kind of code should be in the controller however.