Ruby on Rails：将弃用警告视为错误还是以其他方式找到弃用的代码？ [英] Ruby on Rails: Treat deprecation warnings as errors or otherwise find deprecated code?

问题描述

我最近从Rails 2升级到Rails 3，并且我试图清除所有我可能已弃用的代码。我这样做的方法只是浏览在开发机器上运行的网站副本，并凝视控制台的输出以获取警告。

I recently upgraded from Rails 2 to Rails 3, and I'm trying to root out all the code I might have that is deprecated. The way I'm doing this is just surfing around a copy of my site running on a development machine, and peering at the output from the console for warnings.

一种使Rails将弃用警告视为错误或以其他方式更有效地查找弃用代码的方法？

Is there a way to cause Rails to treat deprecation warnings as errors or otherwise find deprecated code more efficiently?

推荐答案

您可以自定义行为通过设置 ActiveSupport :: Deprecation.behavior 弃用呼叫。应将其设置为 Proc ，以接受消息和调用栈，例如您可以这样做：

You can customise the behaviour of deprecated calls by setting ActiveSupport::Deprecation.behavior. This should be set to a Proc that accepts a message and a callstack e.g. you could do:

ActiveSupport::Deprecation.behavior = Proc.new { |message, callstack|
  raise message + "\n" + callstack.join("\n  ")
}

如果您对应用程序进行了自动化测试，则在升级所使用的Rails版本时，这些功能将非常宝贵。

If you have automated tests for your app these are invaluable when upgrading the version of Rails being used.

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