gem install active_navigation

In your view:

Set a config to menu:

- nav_menu =    active_nav_menu :class => "nav-main", :items_classify => true
- nav_menu.add "Simple link", "/some/path"
- nav_menu.add "Link to current page is active", root_path
- nav_menu.add "Item with custom class", "/some/path", :class_name => "custom-class-name"
- nav_menu.add "Empty link (#)", "#"
- nav_menu.add "Empty link ('')", ""
- nav_menu.add "Just text"

Render menu:

= active_navigation nav_menu

In your sass file:

ul.nav-main
  li
  a, span
  a
    &:hover
    &.active
    &.disabled
  span
  li
    &.custom-class-name a

- nav_menu =    active_nav_menu :class => "nav-example"
- nav_menu.add "Home", root_path
- nav_menu.add "About", "/about"
- nav_menu.add "Portfolio", "/portfolio"
- nav_menu.add "Services", "/services"
- nav_menu.add "Contacts:"
- nav_menu.add "Twitter", "/twitter", :class_name => "tw"
- nav_menu.add "Facebook", "/facebook", :class_name => "fb"

= active_navigation nav_menu

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