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Rails 3 deprecated methods and APIs可能重复：Rails 3已弃用的方法和API
What resources are out there (free or paid) that help walk you through the process of migrating a Ruby on Rails 2 application to Rails 3? I've seen some blog posts (some of which seem out of date) and an eBook for sale somewhere on the RoR website, but what can you recommend as an accurate and complete explanation of what changed from version 2 to version 3 and what needs to be updated when porting to a Rails 3 environment?
哪些资源（免费或付费）可以帮助您完成将Ruby on Rails 2应用程序迁移到Rails 3的过程？我在RoR网站上看到过一些博客文章（其中一些看起来过时了）和一本电子书出售，但你能推荐什么作为从版本2到版本3的变化的准确和完整的解释以及需要什么移植到Rails 3环境时要更新？
3 个解决方案
#1
9
Aside from a number of RailsCasts, on the paid front, BDDCasts has one entitled Upgrading to Rails 3 for only $5. I can't vouch for the quality of the latter (they have some free episodes too), but Ryan's stuff at RailsCasts is top notch.
除了付费方面的许多RailsCasts之外，BDDCasts还有一个名为Upgrading to Rails 3的产品只需5美元。我不能保证后者的质量（他们也有一些免费剧集），但Ryan在RailsCasts的东西是一流的。
Gregg Pollack's videos on the official site give a great overview as well.
Gregg Pollack在官方网站上的视频也给出了很好的概述。
Peepcode also has a Rails 3 Upgrade Handbook for purchase.
Peepcode还有一个Rails 3升级手册可供购买。
#2
6
Watch this http://railscasts.com/episodes/225-upgrading-to-rails-3-part-1
观看此http://railscasts.com/episodes/225-upgrading-to-rails-3-part-1
#3
3
According to http://weblog.rubyonrails.org/2010/9/4/ruby-on-rails-2-3-9-released (official Rails blog) it is recommended to first migrate to Rails 2.3.9 - this would help to identify all deprecations and generally get you closer to Rails 3.
根据http://weblog.rubyonrails.org/2010/9/4/ruby-on-rails-2-3-9-released（官方Rails博客），建议先迁移到Rails 2.3.9 - 这样会帮助识别所有弃用并通常让您更接近Rails 3。
BTW, we are also facing the imminent migration to Rails 3, our marketing guys are already horrified! :)
顺便说一句，我们也面临即将迁移到Rails 3，我们的营销人员已经吓坏了！ :)
#1
9
Aside from a number of RailsCasts, on the paid front, BDDCasts has one entitled Upgrading to Rails 3 for only $5. I can't vouch for the quality of the latter (they have some free episodes too), but Ryan's stuff at RailsCasts is top notch.
除了付费方面的许多RailsCasts之外，BDDCasts还有一个名为Upgrading to Rails 3的产品只需5美元。我不能保证后者的质量（他们也有一些免费剧集），但Ryan在RailsCasts的东西是一流的。
Gregg Pollack's videos on the official site give a great overview as well.
Gregg Pollack在官方网站上的视频也给出了很好的概述。
Peepcode also has a Rails 3 Upgrade Handbook for purchase.
Peepcode还有一个Rails 3升级手册可供购买。
#2
6
Watch this http://railscasts.com/episodes/225-upgrading-to-rails-3-part-1
观看此http://railscasts.com/episodes/225-upgrading-to-rails-3-part-1
#3
3
According to http://weblog.rubyonrails.org/2010/9/4/ruby-on-rails-2-3-9-released (official Rails blog) it is recommended to first migrate to Rails 2.3.9 - this would help to identify all deprecations and generally get you closer to Rails 3.
根据http://weblog.rubyonrails.org/2010/9/4/ruby-on-rails-2-3-9-released（官方Rails博客），建议先迁移到Rails 2.3.9 - 这样会帮助识别所有弃用并通常让您更接近Rails 3。
BTW, we are also facing the imminent migration to Rails 3, our marketing guys are already horrified! :)
顺便说一句，我们也面临即将迁移到Rails 3，我们的营销人员已经吓坏了！ :)