Question

我有一个网站过去常常在网址上加载大量博客文章：

/blog/2014/03/21/post-name
/2014/03/20/another-post

他们现在已转移到新域名，我正在尝试在路由文件中设置重定向：

match '*path' => 
  redirect{ |params, request|
    "http://ournewdomain.com/#{params[:path]}"
  }, constraints: { :path => %r{(blog/)?\d\d\d\d/\d\d/\d\d/[\w\-_]+} }

但是这会将所有请求重定向到新域 - 就像constraints无效一样。我看过this但看起来这个问题已经解决了？ constraints是否适用于globbed路由？

Answer 1

我对此稍作调整，似乎有效：

  get '*path', to: redirect {|params, req| 
     "http://ournewdomain.com/#{params[:path]}" },
     constraints: { :path => %r{(blog/)?\d\d\d\d/\d\d/\d\d/[\w\-_]+} }

Answer 2

如果无法使globbed路径上的constraints正常工作，我目前最终会这样做，这似乎很笨拙，但有效：

match '/:year/:month/:day/:slug',
  to: redirect{ |p, request|
    "http://ournewdomain.com/#{p[:year]}/#{p[:month]}/#{p[:day]}/#{p[:slug]}/"
  }, constraints: {
        :year => /\d\d\d\d/,
        :month => /\d\d/,
        :day => /\d\d/,
        :slug => /[\w\-_]+/ }

# Same as above but with /blog/ prefix.
match '/blog/:year/:month/:day/:slug',
  to: redirect{ |p, request|
    "http://ournewdomain.com/#{p[:year]}/#{p[:month]}/#{p[:day]}/#{p[:slug]}/"
  }, constraints: {
        :year => /\d\d\d\d/,
        :month => /\d\d/,
        :day => /\d\d/,
        :slug => /[\w\-_]+/ }

在Rails路由中进行通配时，约束是否有效？

2 个答案: