Rendering will_paginate links nicely with Twitter Bootstrap

will_paginate_boostrap.rb

##
# Rendering will_paginate links nicely with Twitter Bootstrap
# source: http://thehungrycoder.com/ruby-on-rails/will-paginate-links-and-twitter-bootstrap.html
# Modified for rendering pagination in Bootstrap 3
#
# Usage:
#   + Put this file in config/initializers 
#   + When you embed the will_paginate in the view, you just need to pass this helper and the links will be rendered using this helper.
#      = will_paginate(@collection, :renderer => 'BootstrapPaginationHelper::LinkRenderer')
##
module BootstrapPaginationHelper
  class LinkRenderer < WillPaginate::ActionView::LinkRenderer
    protected
    def page_number(page)
      unless page == current_page
        link(page, page, :rel => rel_value(page))
      else
        link(page, "#", :class => 'active')
      end
    end
    def gap
      text = @template.will_paginate_translate(:page_gap) { '&hellip;' }
      %(<li class="disabled"><a>#{text}</a></li>)
    end
    def next_page
      num = @collection.current_page < @collection.total_pages && @collection.current_page + 1
      previous_or_next_page(num, @options[:next_label], 'next')
    end
    def previous_or_next_page(page, text, classname)
      if page
        link(text, page, :class => classname)
      else
        link(text, "#", :class => classname + ' disabled')
      end
    end
    def html_container(html)
      tag(:ul, html, container_attributes)
    end

    private

    def link(text, target, attributes = {})
      if target.is_a? Fixnum
        attributes[:rel] = rel_value(target)
        target = url(target)
      end
      unless target == "#"
          attributes[:href] = target
      end
      classname = attributes[:class]
      attributes.delete(:classname)
      tag(:li, tag(:a, text, attributes), :class => classname)
    end
  end
end