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ember-rails Build Status Dependency Status

ember-rails allows you to include Ember.JS into your Rails 3.x application.

The gem will also pre-compile your handlebars templates when building your asset pipeline. It includes development and production copies of Ember.

You can see an example of how to use the gem here. There is also a great tutorial by Dan Gebhardt called "Beginning Ember.js on Rails" which is a great read if your just starting out with Rails and Ember.js

Getting started

Add the gem to your application Gemfile:

gem "ember-rails"

Run bundle install and add the following line to app/assets/javascripts/application.js:

//= require ember

Ember-rails also provides a way to run Ember in development mode, you can switch out your require statement //= require ember to use the dev copies like so:

//= require ember-dev


Ember does not require an organized file structure. However, ember-rails allows you to use rails g ember_rails:bootstrap to create the following directory structure under app/assets/javascripts/ember:


Additionally, it will add the following lines to app/assets/javascripts/application.js. By default, it uses the Rails Application's name and creates an file to setup application namespace and initial requires:

//= require ember
//= require ember/app


rails g ember_rails:bootstrap
  insert  app/assets/javascripts/application.js
  create  app/assets/javascripts/ember/models
  create  app/assets/javascripts/ember/models/.gitkeep
  create  app/assets/javascripts/ember/controllers
  create  app/assets/javascripts/ember/controllers/.gitkeep
  create  app/assets/javascripts/ember/views
  create  app/assets/javascripts/ember/views/.gitkeep
  create  app/assets/javascripts/ember/helpers
  create  app/assets/javascripts/ember/helpers/.gitkeep
  create  app/assets/javascripts/ember/templates
  create  app/assets/javascripts/ember/templates/.gitkeep
  create  app/assets/javascripts/ember/

If you want to avoid .gitkeep files, use the skip git option like this: rails g ember_rails:bootstrap -g.

Ask Rails to serve HandlebarsJS and pre-compile templates to Ember by putting each template in a dedicated ".js.hjs" or ".handlebars" file (e.g. app/assets/javascripts/templates/admin_panel.handlebars) and including the assets in your layout:

<%= javascript_include_tag "templates/admin_panel" %>

Bundle all templates together thanks to Sprockets, e.g create app/assets/javascripts/templates/all.js with:

//= require_tree .

Now a single line in the layout loads everything:

<%= javascript_include_tag "templates/all" %>

Note on Patches/Pull Requests

  1. Fork the project.
  2. Make your feature addition or bug fix.
  3. Add tests for it. This is important so I don't break it in a future version unintentionally.
  4. Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
  5. Send me a pull request. Bonus points for topic branches.