i think this topic will help you.
http://www.rubycentral.com/pickaxe/tut_modules.html
Section : Mixins




Sijo Kg wrote:
> Hi
>     In one of the method say
> require_helpers
> 
> i have the code
> helper_constant = SomeHelper
> ActionController::Base.send :include, helper_constant
> ActionView::Base.send :include, helper_constant
> ActionView::Helpers::FormBuilder.send :include, helper_constant
> 
>      And I did not understand what actually the above does?
> 
> Sijo

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