如何在Rails路由中使用正则表达式进行重定向？

本文介绍了如何在Rails路由中使用正则表达式进行重定向？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

在我的route.rb中尝试重写的规则可能是不言自明的：

This attempted rewrite rule in my routes.rb is probably self-explanatory:

match "/:user/:photo-thumb.png" => redirect("/%{user}/photos/%{photo}/image?style=thumb"), :photo => /[a-zA-Z]+/

我想重定向诸如mysite/alice之类的内容/foo-thumb.png到mysite/alice/photos/foo/image?style=thumb

I want to redirect something like mysite/alice/foo-thumb.png to mysite/alice/photos/foo/image?style=thumb

上述尝试不过是错误的。有任何解决方案吗？

The above attempt is wrong though. Any ideas for fixing it?

推荐答案

以下方法对我有用：

match "/:user/:photo_thumb.png" => redirect{|p| "/#{p[:user]}/photos/#{p[:photo_thumb].split('-')[0]}/image?style=thumb" }, :constraints => { :photo_thumb => /[a-zA-Z]*\-thumb/ }

我很想找到一种更简单的方法。 （正如塔德曼指出的那样，我最好通过nginx重写来做到这一点。请参阅以下相关问题： Routes.rb，机架重写，nginx / apache重写规则）

I'd love to find a simpler way to do it though. (As tadman points out, I may be better off doing this with nginx rewrites. See this related question: Routes.rb vs rack-rewrite vs nginx/apache rewrite rules )