Rails: Where to define a helper method that will be available to several controllers?

Question

I would like to define a helper method, my_method, that will be available inside BuyersController methods (like index, create, e.t.c.).

I tried to define it in app/helpers/application_helper.rb but it didn't work:

undefined method `my_method' for #<BuyersController:0x26df468>

It should be in some shared place because I want to use it in other controllers also. This is why I tried app/helpers/application_helper.rb.

What is the right place to define it ?

Answer 1

It should be in app/controllers/application_controller.rb

The app/helpers/application_helper.rb is for shared view helpers.