如何在Rails 3.2的视图和控制器中使用下划线方法？

Question

There is underscore method in ActiveSupport::Inflector ( http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html#method-i-underscore ). But it is not available in both erb view and rails controller. How can we make it available in view or in rails controller?

Answer 1

This method is added to String. You should be able to call it on any String object, in any context (controller, view, etc.) assuming you've loaded ActiveSupport

Answer 2

If you are using rails 4 you should do the following

1. go to the controler then follow this example:

   def new

   @about = About.new

   @delete_me = 'EggsAndHam'.underscore

   end

you can call the @delete_me on your view