This gem vendors jQuery 1.6 and the latest jQuery UJS adapter for Rails 3.1 and greater. The files will be added to the asset pipeline and available for you to use. For example, you can require them by adding these two lines to the file app/assets/javascripts/application.js:
//= require jquery
//= require jquery_ujs
Also provided is Sam Ruby's assert_select_jquery function, which is automatically required for use in tests.
When you generate a new Rails 3.1 app, pass the -j jquery option, like this:
rails new myapp -j jquery
Then run bundle install. You're done!
This gem adds a single generator to Rails 3, jquery:install. Running the generator will remove any Prototype JS files you may happen to have, fetch jQuery and the jQuery-ujs driver for Rails, and (optionally) fetch jQuery UI.
The gem will also hook into the Rails configuration process, removing Prototype and adding jQuery to the javascript files included by the javascript_include_tag(:defaults) call. While the plugin downloads minified and un-minified versions of jQuery and jQuery UI, only the minified versions are included in :default.
In your Gemfile, add this line:
gem "jquery-rails"
Then, run bundle install. To invoke the generator, run:
rails generate jquery:install #--ui to enable jQuery UI --version to install specific version of JQuery (default is 1.6)
You're done!