Using helper_method from a Mixin Module

rubyonrails-talk
1

Hi --

Hi,

I have a module with a helper method in it. I want to automatically declare the method as a helper when I mix the module into a controller class, so the mixin basically sets itself up. Something like :-

module MyMixin

# I want to do helper method here in the module helper_method :my_helper

def my_helper    puts "foo" end end

---

class MyController < ApplicationController

include MyMixin

# I dont' want to have to do helper_method in the controller # helper_method :my_helper

---

This does not work as I want, I have to do "helper_method" in the controller class itself. If I try to do it in the module I get an error like this :-

undefined method `helper method` for MyMixin:Module

Is there a way to achieve this?

Try this (untested):

   module MyMixin      def self.included(c)        c.helper_method :my_helper      end

     def my_helper        etc.      end    end

The idea is to call the included callback, which allows you to operate on the class that's doing the including.

David