如何在 Ruby on Rails 中获取当前的绝对 URL？
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How do I get the current absolute URL in Ruby on Rails?
提问by Jakub Arnold
How can I get the current absolute URLin my Ruby on Rails view?
如何在我的 Ruby on Rails 视图中获取当前的绝对 URL？
The request.request_urionly returns the relative URL.
该request.request_uri只返回相对URL。
回答by Jaime Bellmyer
For Rails 3.2 or Rails 4+
对于 Rails 3.2 或 Rails 4+
You should use request.original_urlto get the current URL.
您应该使用request.original_url来获取当前 URL。
This method is documented at original_url method, but if you're curious, the implementation is:
这个方法记录在original_url method，但如果你很好奇，实现是：
def original_url
base_url + original_fullpath
end
For Rails 3:
对于 Rails 3：
You can write "#{request.protocol}#{request.host_with_port}#{request.fullpath}", since request.urlis now deprecated.
您可以编写"#{request.protocol}#{request.host_with_port}#{request.fullpath}"，因为request.url现在已弃用。
For Rails 2:
对于 Rails 2：
You can write request.urlinstead of request.request_uri. This combines the protocol (usually http://) with the host, and request_uri to give you the full address.
你可以写request.url而不是request.request_uri. 这将协议（通常是 http://）与主机和 request_uri 结合起来为您提供完整地址。
回答by mcr
I think that the Ruby on Rails 3.0 method is now request.fullpath.
我认为 Ruby on Rails 3.0 方法现在是request.fullpath.
回答by grzuy
You could use url_for(only_path: false)
你可以用 url_for(only_path: false)
回答by ecoologic
DEPRECATION WARNING: Using #request_uri is deprecated. Use fullpath instead.
弃用警告：不推荐使用 #request_uri。请改用全路径。
回答by Mike
If you're using Rails 3.2or Rails 4you should use request.original_urlto get the current URL.
如果您使用的是Rails 3.2或Rails 4，您应该使用它request.original_url来获取当前 URL。
Documentation for the method is at http://api.rubyonrails.org/classes/ActionDispatch/Request.html#method-i-original_urlbut if you're curious the implementation is:
该方法的文档位于http://api.rubyonrails.org/classes/ActionDispatch/Request.html#method-i-original_url但如果你很好奇，实现是：
def original_url
base_url + original_fullpath
end
回答by grosser
You can add this current_urlmethod in the ApplicationController to return the current URL and allow merging in other parameters
您可以在 ApplicationController 中添加这个current_url方法来返回当前的 URL 并允许合并其他参数
# https://x.com/y/1?page=1
# + current_url( :page => 3 )
# = https://x.com/y/1?page=3
def current_url(overwrite={})
url_for :only_path => false, :params => params.merge(overwrite)
end
Example Usage:
示例用法：
current_url --> http://...
current_url(:page=>4) --> http://...&page=4
回答by Duke
For Ruby on Rails 3:
对于 Ruby on Rails 3：
request.url
request.host_with_port
I fired up a debugger session and queried the request object:
我启动了一个调试器会话并查询了请求对象：
request.public_methods
回答by Lucas Renan
In Ruby on Rails 3.1.0.rc4:
在 Ruby on Rails 3.1.0.rc4 中：
request.fullpath
回答by Dorian
回答by Yuri Barbashov
url_for(params)
And you can easily add some new parameter:
您可以轻松添加一些新参数：
url_for(params.merge(:tag => "lol"))
