Rails助手不能在测试环境中工作 [英] Rails helpers not working in test environment

问题描述

我已遵循 http://railscasts.com/上的教程episodes / 221-subdomains-in-rails-3 。

它允许您通过覆盖辅助程序中的url_for方法将子域选项传递到路由文件。
我的辅助方法如下所示：

It allows you to pass a subdomain option to your routes by overriding the url_for method in a helper file. I've helper method looks like this:

module UrlHelper
  def with_subdomain(subdomain)
    subdomain = (subdomain || "")
    subdomain += "." unless subdomain.empty?
    [subdomain, request.domain, request.port_string].join
  end

  def url_for(options = nil)
    if options.kind_of?(Hash) && options.has_key?(:subdomain)
      options[:host] = with_subdomain(options.delete(:subdomain))
    end
    super
  end
end

因此：

sites_homepage_url(:subdomain => "cats") 

生成网址：

"http://cats.example.com/sites/1/homepage" 

这在开发中工作正常。然而，在我的黄瓜测试中，使用：

This works fine in development. In my cucumber tests, however, using:

sites_homepage_url(:subdomain => "cats") 

产生：

"http://www.example.com/sites/1/homepage?subdomain=cats"

表示我添加到url_for在助手的功能不工作。任何人都有任何想法？

which indicates the functionality I added to url_for in the helper isn't working. Anyone got any ideas?

编辑：格式化并添加UrlHelper的代码。

Formatting and added the code for the UrlHelper.

推荐答案

因为其他解决方案没有工作，你可以尝试一个更难的。

As the other solutions have not worked, you can try a harder one.

在一个初始化文件（像 config / initializers / url_for_patch .rb ），请添加：

In an initializer file (like config/initializers/url_for_patch.rb), add this:

ActionView::Helpers::UrlHelper.class_eval do

  def with_subdomain(subdomain)
    subdomain = (subdomain || "")
    subdomain += "." unless subdomain.empty?
    [subdomain, request.domain, request.port_string].join
  end

  alias_method_chain :url_for, :subdomain

  def url_for_with_subdomain(options = nil)
    if options.kind_of?(Hash) && options.has_key?(:subdomain)
      options[:host] = with_subdomain(options.delete(:subdomain))
    end
    url_for_without_subdomain( options )
  end      

end

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