Rails-从3.0迁移到3.1

问题描述

| 我想通过从3迁移到3.1来帮助一个开源项目 但是我之前从未迁移过大型项目，因此我正在寻找一些建议吗？ 这是项目-https://github.com/locomotivecms/engine 谢谢亚历克斯     

解决方法

这是一个“几乎可以工作”的机车代码，已在rails 3.1上迁移： https://github.com/lgs/engine/tree/rails-3.1 ...尚未准备好接受拉取请求， 实际上，它错过了在所有相对路径中替换/ images /和/ assets /的方法，... 无论如何，它会在Rails 3.1服务器上启动并保持运行（尽管有很多“ DEPRECATION WARNING \”）：

lsoave@ubuntu:~/rails/github/engine$ rails s
DEPRECATION WARNING: config.generators in Rails::Railtie is deprecated. Please use config.app_generators instead. (called from <top (required)> at /home/lsoave/rails/github/engine/config/application.rb:9)
DEPRECATION WARNING: class_inheritable_attribute is deprecated,please use class_attribute method instead. Notice their behavior are slightly different,so refer to class_attribute documentation first. (called from <top (required)> at /home/lsoave/rails/github/engine/config/application.rb:9)
DEPRECATION WARNING: class_inheritable_attribute is deprecated,so refer to class_attribute documentation first. (called from <top (required)> at /home/lsoave/rails/github/engine/config/application.rb:9)
=> Booting WEBrick
=> Rails 3.1.0.rc4 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2011-06-22 01:54:34] INFO  WEBrick 1.3.1
[2011-06-22 01:54:34] INFO  ruby 1.9.2 (2010-12-25) [i686-linux]
[2011-06-22 01:54:34] INFO  WEBrick::HTTPServer#start: pid=2948 port=3000

Rails控制台也可以正常工作：

lsoave@ubuntu:~/rails/github/engine$ rails c
DEPRECATION WARNING: config.generators in Rails::Railtie is deprecated. Please use config.app_generators instead. (called from <top (required)> at /home/lsoave/rails/github/engine/config/application.rb:9)
DEPRECATION WARNING: class_inheritable_attribute is deprecated,so refer to class_attribute documentation first. (called from <top (required)> at /home/lsoave/rails/github/engine/config/application.rb:9)

Loading development environment (Rails 3.1.0.rc4)
ruby-1.9.2-p136 :001 > 

这是我在尝试过程中遵循的指南： http://davidjrice.co.uk/2011/05/25/how-to-upgrade-a-rails-application-to-version-3-1-0.html 更新： 解决“无法就地修改SafeBuffer”错误 更新6月23日11： 解决了“ ArgumentError（错误的参数数量（4个，共3个））”，将选项param（第四个）添加到set_session到lib / locomotive / session_store.rb b / lib / locomotive / session_store.rb 感谢Nicholas Hubbard先前的回答。     ,从GitHub重新发布： 看来3.1中的新会话需要4个参数： https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/middleware/session/cookie_store.rb第61行 def set_session（env，sid，session_data，选项） 机车商店仅需三个： https://github.com/lgs/engine/blob/rails-3.1/lib/locomotive/session_store.rb第31行 def set_session（env，sid，session_data） 似乎正在传递选项，这也是我们所不期望的。