不推荐使用arity为1的Rails 3重定向块

Question

在Rails 3.2.11应用程序中,我有以下路由,以便将www重定向到非www:

constraints(:host => /www.foo.com/) do
    root :to => redirect("http://foo.com")
    match '/*path', :to => redirect {|params| "http://foo.com/#{params[:path]}"}
end

无论如何,rspec会抛出以下警告:

DEPRECATION WARNING: redirect blocks with arity of 1 are deprecated. Your block must take 2 parameters: the environment, and a request object. (called from block (2 levels) in <top (required)> at /foo/config/routes.rb:6)

我无法在谷歌上找到一些东西所以我想问是否有人知道如何摆脱这个警告.

谢谢

Answer 1

只需在重定向块上获取第二个参数,即:

constraints(:host => /www.foo.com/) do
  root :to => redirect("http://foo.com")
  match '/*path', :to => redirect {|params,request| "http://foo.com/#{params[:path]}"}
end

您可以在此处查看此方法的一些文档