How can we use One controllers method in other controllers view?

Question

I have two controllers named: lists_controller.rb and articles_controller.rb .

And a view under articles/index.html.rb .

I want to use a element from list_controller.rb in articles/index.html.rb . My method in lists_controller.rb is as follows:

def index
    @lists = List.all
end

I want to use @lists in articles/index.html.rb to loop over the elements under @lists instance in the articles/index.html.rb view under articles_controller.rb

Answer 1

The easiest way is to simply add @lists = List.all to ArticlesController#index . It's hardly enough code to worry about duplication/DRY.

Were more complex behavior required, you can share behavior among controllers by defining it in ApplicationController (from which controllers inherit), or among multiple actions within a controller using filters , or by combining the two.

Answer 2

To answer the title literally - you could create a module with a method called list_index and then include that module in both controllers.

In your particular case it's probably be easier to just have the two calls as others have outlined.