David Skaggs davidtskaggs

Helper methods in rails are used only in views, not controllers. If you want to make a method available to multiple controllers, you can declare it in the ApplicationController, which is the base class for all your controllers. If you want the method to be visible to views, declare it as a helper_method.

http://api.rubyonrails.org/classes/AbstractController/Helpers/ClassMethods.html#method-i-helper_method