Ruby-on-rails 指定要从 before_filter 中排除的控制器
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Specify which controllers to exclude from before_filter
提问by chaz hamilton
I'm using devise for authentication and have some before_filters in my application controller. Issue I'm seeing is that when I try to logout the before_filter intercepts that and keeps me on the view that's I've setup in the before_filter. Is there any way for me to specify which controllers should be excluded from the application controller or some other file?
我正在使用 devise 进行身份验证，并且在我的应用程序控制器中有一些 before_filters。我看到的问题是，当我尝试注销 before_filter 时，它会拦截它并使我保持在我在 before_filter 中设置的视图上。我有什么方法可以指定应从应用程序控制器或其他文件中排除哪些控制器？
回答by Jesse Wolgamott
In the controller where you want to skip a before filter specified in an inherited controller, you can tell rails to skip the filter
在要跳过继承控制器中指定的 before 过滤器的控制器中，您可以告诉 rails 跳过过滤器
class ApplicationController
before_filter :authenticate_user!
end
class SessionsController < ApplicationController
skip_before_filter :authenticate_user!
end
回答by Don Roby
You can qualify a filter with :onlyor :except.
您可以使用:only或限定过滤器:except。
before_filter :filter_name, :except => [:action1, :action2]
Or if the filter (as I now see is the case in your situation) is defined in ApplicationControllerand you want to bypass it in a subclass controller, you can use a skip_before_filterwith the same qualifications in the subclass controller:
或者，如果过滤器（正如我现在看到的情况就是您的情况）定义在 中，ApplicationController并且您想在子类控制器中绕过它，则可以在子类控制器中使用skip_before_filter具有相同限定的a ：
skip_before_filter :filter_name, :except => [:action1, :action2]
回答by Taimoor Changaiz
In config/application.rb
在 config/application.rb
config.to_prepare do
Devise::SessionsController.skip_before_filter :authenticate_user!
end
Referenced by:
参考：
How to skip a before_filter for Devise's SessionsController?
回答by akostadinov
Answers above are good except:
DEPRECATION WARNING: skip_before_filter is deprecated and will be removed in Rails 5.1. Use skip_before_action instead.
上面的答案很好，除了：
DEPRECATION WARNING: skip_before_filter is deprecated and will be removed in Rails 5.1. Use skip_before_action instead.
So please use before_actionand skip_before_actioninstead of *-filter.
所以请使用before_actionandskip_before_action而不是*-filter。
