Ruby-on-rails 未定义的局部变量或方法“root_path”
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undefined local variable or method `root_path'
提问by user3389436
I have the following block of code in my rspec file located in the root of the /spec folder.
我的 rspec 文件中有以下代码块位于 /spec 文件夹的根目录。
require 'spec_helper'
describe "home" do
subject { page }
before(:each) { visit root_path }
describe "page" do
it { should have_title('My Page')}
end
end
When I run it I get
当我运行它时，我得到
undefined local variable or method `root_path'
Which doesn't make any sense. When I followed the rails tutorial a similar set up worked just fine. Can anyone help?
这没有任何意义。当我遵循 rails 教程时，类似的设置工作得很好。任何人都可以帮忙吗？
EDIT:
编辑：
My routes includes
我的路线包括
root "static#home"
EDIT 2:
编辑2：
Reopening this topic. Moving my root declaration to the top did not fix it.
重新打开这个话题。将我的根声明移到顶部并没有解决它。
EDIT 3:
编辑 3：
What worked was including url_helpers in my rspec config. I've never had to do this before. can anyone answer why this worked?
有效的是在我的 rspec 配置中包含 url_helpers。我以前从来没有这样做过。谁能回答为什么这有效？
回答by Gergo Erdosi
Named routes are not available in specs by default. Add the following code to spec_helper.rb:
默认情况下，命名路由在规范中不可用。将以下代码添加到spec_helper.rb：
RSpec.configure do |config|
config.include Rails.application.routes.url_helpers
end
回答by Lenin Raj Rajasekaran
In your routes.rb, see if you have defined root. Something like this:
在你的 routes.rb 中，看看你是否定义了root. 像这样的东西：
root :to => 'home#index'
回答by user664833
You figured out your issue, though I want to let others know that another reason they may get the error message...
您已经解决了您的问题，但我想让其他人知道他们可能会收到错误消息的另一个原因......
NameError: undefined local variable or method `root_path'
...is because they renamed the "root" route:
...是因为他们重命名了“根”路由：
For example:
例如：
root to: 'pages#landing', as: :home
This will create home_pathand home_urlas named helpers in your application, whereas root_pathand root_urlwill be undefined.
这将在您的应用程序中创建home_path和home_url作为命名助手，而root_pathandroot_url将是undefined。
回答by Richard Peck
As mentioned by @emaillenin, you'll need to include root to: "controller#action"in your routes.rbfile
正如 所提到的@emaillenin，您需要root to: "controller#action"在routes.rb文件中包含
However, you need to ensure this is declared correctly - I've had it before that root_pathis not found, only because it's at the end of the routes.rbfile or something
但是，您需要确保正确声明它 - 我之前已经root_path找到它了，只是因为它在routes.rb文件的末尾或其他东西
It would be beneficial to show your entire routes.rbfile
显示您的整个routes.rb文件将是有益的
