Using helper_method from a Mixin Module

Rails
1

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?

2

Hi –

On Sat, 11 Aug 2007, John L. wrote:

helper_method :my_helper
include MyMixin
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

–

3

Many thanks for this, it works beautifully!

module MyMixin
def self.included©
c.helper_method :my_helper
end