Make will_paginate generate HTML that bootstrap.less will render nicely

application_helper.rb

# Based on https://gist.github.com/1182136
# config/initializers/will_paginate.rb

class BootstrapLinkRenderer < ::WillPaginate::ActionView::LinkRenderer
  protected

  def html_container(html)
    tag :div, tag(:ul, html), container_attributes
  end

  def page_number(page)
    tag :li, link(page, page, :rel => rel_value(page)), :class => ('active' if page == current_page)
  end

  def gap
    tag :li, link(super, '#'), :class => 'disabled'
  end

  def previous_or_next_page(page, text, classname)
    tag :li, link(text, page || '#'), :class => [classname[0..3], classname, ('disabled' unless page)].join(' ')
  end
end

# Output TwitterBootstrap friendly paging links.
def page_navigation_links(pages)
  will_paginate(pages, :class => 'pagination', :inner_window => 2, :outer_window => 0,
                :renderer => BootstrapLinkRenderer,
                :previous_label => '&laquo;'.html_safe,
                :next_label => '&raquo;'.html_safe)
end