如何使用打捆（0.9.1.pre1）与Rails和CouchRest

Question

我想使用当前版本的捆绑（已经有相当一些变化，从0.8〜 0.9），以便管理我的Rails应用程序的宝石。首先，我的应用程序文件夹的根目录中创建一个Gemfile并添加所有需要的宝石吧。然后我放置（如手册中推荐）下面的代码到我config/environment.rb：

begin
  # Require the preresolved locked set of gems.
  require File.expand_path('../.bundle/environment', __FILE__)
rescue LoadError
  # Fallback on doing the resolve at runtime.
  require "rubygems"
  require "bundler"
  Bundler.setup
end

bundle install似乎很好地工作，因为它与Your bundle is complete!完成。但是从我的应用程序时，我收到以下错误：

$ ruby script/server  
=> Booting WEBrick
=> Rails 2.3.5 application starting on http://0.0.0.0:3000
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:443:in `load_missing_constant': uninitialized constant CouchRest (NameError)
        from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in `const_missing'
        from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:in `const_missing'
        from /home/kuf/data/Arbeit/Decodon/2009-05-08-Project_Orange/orangemix/fuse/config/initializers/couchdb.rb:35
        from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load_without_new_constant_marking'
        from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load'
        from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
        from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load'
        from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:622:in `load_application_initializers'
         ... 11 levels...
        from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:84
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
        from script/server:3

什么是错在这里？

Answer 1

Arrrg，只是把Send按钮，有一个想法，解决了这个问题。所述捆绑手册说：“[...]包括在你的代码的开头以下。”对于Rails应用程序，你必须把提到的部分在config/environment.rb的底部得到一切设置正确之前：

RAILS_GEM_VERSION = '2.3.5' unless defined? RAILS_GEM_VERSION

require File.join(File.dirname(__FILE__), 'boot')

Rails::Initializer.run do |config|
...
end

# Put the bundler related stuff here!
begin
  # Require the preresolved locked set of gems.
  require File.expand_path('../.bundle/environment', __FILE__)
rescue LoadError
  # Fallback on doing the resolve at runtime.
  require "rubygems"
  require "bundler"
  Bundler.setup
end