bootstrap nav_list rendering helper

gistfile1.rb

module ApplicationHelper
  # render nav list for twitter bootstrap.

  # define the nav list items.
  def nav_list
    [
      [:a, 'A', 'http://example.com/a'],
      [:b, 'B', 'http://example.com/b'],
      [:c, 'C', 'http://example.com/c'],
      [:d, 'D', 'http://example.com/d'],
    ]
  end

  # call render_nav_tabs to render current nav with active item
  # e.g. render_nav_tabs(:a, nav_list)
  def render_nav_tabs(name, nav_list, options = {})
    nav_class = options[:nav_class] || 'nav nav-tabs'
    content_tag(:ul, class: nav_class) do
      text = nav_list.map do |entry|
        if entry[0] == name
          content_tag(:li, class: 'active') do
            link_to entry[1], '#'
          end
        else
          content_tag(:li) do
            link_to entry[1], entry.last
          end
        end.html_safe
      end.join.html_safe
    end
  end
end