Deprecated as of September 20, 2024

This project is no longer maintained. If you wish to continue to develop this code yourself, we recommend you fork it.

Croutons

Easy breadcrumbs for Rails apps.

Usage

Required steps

Include Croutons::Controller in your ApplicationController.

This will make a #breadcrumbs helper available in your layouts and views.
Call the #breadcrumbs helper in your layouts or views.
Define a BreadcrumbTrail class, which inherits from Croutons::BreadcrumbTrail.
Define missing methods on the BreadcrumbTrail class.

For example, for the admin/locations/index.html.erb view you would define an #admin_locations_index method.

In these methods, you build up a breadcrumb trail by calling #breadcrumb with a label and an optional URL. You can also call previously defined methods to build on existing trails. View assigns (i.e. the controller instance variables) are available via the #objects method which returns a Hash. Rails route helpers are also available inside this class.

Please see the example below for further reference.

Optional steps

Instead of defining a BreadcrumbTrail class you can use an object of your own that responds to #breadcrumbs.

To do this, override the private #breadcrumb_trail method in the controller where you included Croutons::Controller, to return the object you want to use.

The #breadcrumbs method is passed two parameters: one template_identifier String and one objects Hash. The #breadcrumbs method should return an Array of Croutons::Breadcrumbs.
Override the view used to render breadcrumbs.

To do this, create a view called breadcrumbs/_breadcrumbs.html.erb.

In this view, an Array of Croutons::Breadcrumbs is assigned to the local variable breadcrumbs. These Croutons::Breadcrumbs have two public attributes: #label and #url. The #url attribute is optional. To check whether the Croutons::Breadcrumb has a #url or not (i.e. should be rendered as a link or not), check whether the #link? method returns true or false.

Example

`app/controllers/application_controller.rb`

class ApplicationController < ActionController::Base
  include Croutons::Controller
end

`app/controllers/posts_controller.rb`

class PostsController < ApplicationController
  def index
    @posts = Post.all
  end

  def show
    @post = Post.find(params[:id])
  end
end

`app/views/layouts/application.html.erb`

<!DOCTYPE html>
<html>
  <head>
    <title>My blog</title>
  </head>
  <body>
    <%= breadcrumbs %>
    <%= yield %>
  </body>
</html>

`app/models/breadcrumb_trail.rb`

class BreadcrumbTrail < Croutons::BreadcrumbTrail
  def posts_index
    breadcrumb("Posts", posts_path)
  end

  def posts_show
    posts_index
    breadcrumb(objects[:post].title, post_path(objects[:post]))
  end
end

License

About thoughtbot

This repo is maintained and funded by thoughtbot, inc. The names and logos for thoughtbot are trademarks of thoughtbot, inc.

We love open source software! See our other projects. We are available for hire.

croutons

Development

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