Rails3 – How do I make a custom Helper available to controllers And Views

Question

Given the custom helper file in app/helpers/url_helper.rb

module UrlHelper
  ...
end

How do I make it accessible in all controllers and in all views?

Answer 1

Or... include them into your controller

class ApplicationController < ActionController::Base
  include UrlHelper
end

Answer 2

将它放在ApplicationController（不是帮助器）中并声明helper_method :method_name 。