SimpleBreadcrumbs

This gem provides a simple and flexible way to create breadcrumbs with Rails active record models. Setting has_breadcrumb on a model will enable a view method, breadcrumb(), which will show the links to the page and its parents in a breadcrumb format.

Add this line to your application's Gemfile:

gem 'simple_breadcrumbs'

And then execute:

$ bundle

In your model:

class User < ActiveRecord::Base
  has_breadcrumb :title => :username
end

To display a model as a child of another model, you state the parent by using the :parent parameter:

class UserProfile < ActiveRecord::Base
  has_breadcrumb :parent => :user, :title => "Profile"
end

As can be seen here, has_breadcrumb can accept a String on the :title option, which is useful in the case where there is no field in the model which would be suitable. The :parent option however, must take a Symbol.

Breadcrumb links are displayed in a view by including the breadcrumb erb tag. For example in an erb view for creating a new user,

<h2 class="subtitle"><%= breadcrumb @user, 'New' %></h2>

will provide a link which includes the Index page and the controller action to which this page is related.

Other options allowed by the breadcrumb method include :forced_parent, which links to a non-natural parent of the current view page.

By default, breadcrumb includes a link to the index of an object when only one level exists.

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request