Rails3.1にjquery-uiを導入する

js

  • app/assets/javascripts/application.jsに一行追加するだけ
# app/assets/javascrypts/application.js

// This is a manifest file that'll be compiled into including all the files listed below.
// Add new JavaScript/Coffee code in separate files in this directory and they'll automatically
// be included in the compiled file accessible from http://example.com/assets/application.js
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// the compiled file.
//
//= require jquery
//= require jquery-ui // ←追加
//= require jquery_ujs
//= require_tree .

css

  • vendor/assets/stylesheets/vendor.cssを作成
  • vendor/assets/stylesheets/jquery-uiを作成して、そのなかにダウンロードしてきたjquery-ui-1.8.16.custom.cssをおく
# app/assets/stylesheets/application.css

/*
 * This is a manifest file that'll automatically include all the stylesheets available in this directory
 * and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
 * the top of the compiled file, but it's generally better to create a new file per style scope.
 *= require_self
 *= require vendor // ←追加
 *= require_tree . 
*/
# vendor/assets/stylesheets/vendor.css

/*
 *= require_tree ./jquery-ui
 */

image

  • エラーメッセージを見ながらディレクトリを用意してあげる
  • 今回は、vendor/assets/images/jquery-ui/imagesのなかにダウンロードしてきた画像をおく

参考
Ruby on Rails 3.1 and jQuery UI images - Stack Overflow

2011.10.1
追記
datepickerなどの日本語化ファイルを使いたい場合

// app/assets/javascripts/application.js

// This is a manifest file that'll be compiled into including all the files listed below.
// Add new JavaScript/Coffee code in separate files in this directory and they'll automatically
// be included in the compiled file accessible from http://example.com/assets/application.js
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// the compiled file.
//
//= require jquery
//= require jquery_ujs
//= require jquery-ui
//= require vendor // ←追加
//= require_tree .
// vendor/assets/javascripts/vendor.js

//= require_tree ./jquery-ui

で、あとは、vendor/assets/javascripts/jquery-ui/配下に日本語ファイルをおけばおk。