Bootstrap 3 compatible breadcrumbs builder for breadcrumbs_on_rails gem.

bootstrap_breadcrumbs_builder.rb

# See SimpleBuilder in https://github.com/weppos/breadcrumbs_on_rails/blob/master/lib/breadcrumbs_on_rails/breadcrumbs.rb
class BootstrapBreadcrumbsBuilder < BreadcrumbsOnRails::Breadcrumbs::Builder
  def render
    @context.content_tag(:ul, class: 'breadcrumb') do
      @elements.collect do |element|
        render_element(element)
      end.join.html_safe
    end
  end

  def render_element(element)
    current = @context.current_page?(compute_path(element))

    @context.content_tag(:li, class: ('active' if current)) do
      link_or_text = @context.link_to_unless_current(compute_name(element), compute_path(element), element.options)
      divider = @context.content_tag(:span, (@options[:separator]  || '/').html_safe, class: 'divider') unless current

      link_or_text + (divider || '')
    end
  end
end