Best way to add “current” class to nav in Rails 3

Question

I have some static pages in a navigation menu. I want to add a class like \"current\" to the item which is currently displaying.

The way I am doing so is to add tons

Answer 1

Create a method in ApplicationHelper as below.

def active controllers, action_names = nil
  class_name = controllers.split(",").any? { |c| controller.controller_name == c.strip } ? "active" : ""
  if class_name.present? && action_names.present?
    return action_names.split(",").any? { |an| controller.action_name == an.strip } ? "active" : ""
  end
  class_name
end

Now use it in view as below use cases.

1. For all action of any specific controller

....

2. For all action of many controllers (with comma seperated)

....

3. For specific action of any specific controller

....

4. For specific action of many controllers (with comma seperated)

....

5. For some specific actions of any specific controller

....

6. For some specific actions of many controllers (with comma seperated)

....

Hope it helps