为什么Heroku上需要rails_12factor gem？ [英] Why is the rails_12factor gem necessary on Heroku?

问题描述

我注意到Michael Hartl的 Ruby on Rails教程的新版本声称包含以下内容来为Heroku上的静态资源提供服务

gem'rails_12factor'，group :: production

他的书的以前版本没有那个。有人可以解释Heroku发生的事情需要这种宝石的细节吗？

解决方案

我能找到的最佳答案是通过查看 rails_12factor自述文件。

还有一个关于Heroku为什么决定加入宝石的讨论：为什么这个宝石存在？
特别是阅读 schneems 大约在页面的中间位置。

I noticed that the new version of Michael Hartl's Ruby on Rails Tutorial says to include the following to serving static assets on Heroku

gem 'rails_12factor', group: :production

The previous version of his book did not have that. Can someone explain the details of what happened with Heroku that requires this gem?

解决方案

The best answer I could find is by looking at the rails_12factor README.

There's also a discussion on why Heroku decided to include the gem: Why does this gem exist? Especially read the answer from schneems about halfway down the page.

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