Best way to highlight current page in Rails 3? — apply a css class to links conditionally

Question

For the following code:

<%= link_to \"Some Page\", some_path %>

How do I apply a css class current using the

Answer 1

In my case I have a lot of name spaced controllers, that is why I like to show if the current view also is in the Menu Path, I had use the solution of Michael van Rooijen and then I customize for my case.

Helper

def cp(path)
  "current" if request.url.include?(path)
end

View

<%= link_to "All Posts", posts_path, class: cp(posts_path) %>

Now if my menu bar is /users and my current page is /users/10/post also the link /users is set with "current" class