Really simple breadcrumbs for Rails

application_controller.rb

#app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  include Breadcrumbs

  # The rest of your application controller...
  # ...

end

breadcrumbs.rb

#lib/breadcrumbs.rb

module Breadcrumbs

  class Element
    attr_accessor :name, :path
    def initialize(name, path, options={})
      @name = name
      @path = path
    end
  end

  def add_breadcrumb(name, path)
    self.breadcrumbs << Breadcrumbs::Element.new(name, path)
  end

  def breadcrumbs
    @breadcrumbs ||= []
  end

 end

breadcrumbs_helper.rb

#app/helpers/breadcrumbs_helper.rb

module BreadcrumbsHelper

  #
  # Prints the breadcrumbs for the actual controller's action.
  #
  # Example:
  #   #if @breadcrumbs is setted: 
  #     breadcrumbs_display
  #     # => "<ul class='breadcumbs'><li><a href="some_url">Breadcrumb</li></ul>"
  #   #else
  #     breadcrumbs_display
  #     # => ""
  #
  # Returns an HTML unordered list if application breadcrumbs isn't blank,
  # otherwise, an empty string
  #

  def breadcrumbs_display

    return "" if (@breadcrumbs.blank?)

    html_list = "<ul class='breadcumbs'>"

    @breadcrumbs.each do |b|

      # If no path is supplied, don't add anchor.
      if b.path.blank?
        html_list << "<li>#{b.name}</li>"
      else
        html_list << "<li><a href='#{b.path}'>#{b.name}</a></li>"
      end

    end

    html_list << "</ul>"

    html_list.html_safe
  end


end

navigations.scss

ul.breadcumbs{

  padding: 4px 0;
  margin: 5px 0 10px 0;
  list-style: none;
  border-bottom: 1px solid #ccc;

  li{
    color: #333;
    display: inline;
    margin-right:5px;

    &:after{
      content: "/";
      display: inline-block;
      margin-left:5px;
    }

    &:last-child{

    }

    &:last-child:after{
      content: "";
    }

  }
}