Question

Im using rails gon
https://github.com/gazay/gon
to get data from controller easy inserted in views
To get an idea (just an example):

def show
 gon.alert = "this is an alert"
end

now inside my show.haml:

:javascript
  alert(gon.alert)

Now I always have access to a gon value that i set in controller action before BUT what If you want to access gon values from your application.coffee?

• where to set a gon.current_user = 1 that i can use inside application.coffee?

Answer 1

If you want to set a gon value that you can access from every controller action and thus always available in application.coffee, you can set up a before_filter in your ApplicationController.

class ApplicationController < ActionController::Base
  protect_from_forgery
  before_filter :set_gon_values

  private

  def set_gon_values
    gon.current_user = 1  # or whatever you want to set here
  end
end

That will run the set_gon_values method before every action across all of your controllers. This works because all of your controllers inherit from ApplicationController.