rails的before_filter，如果except子controller中的action skip_filter

如题，在http://stackoverflow.com/questions/2390178/skip-before-filter-in-rails 找到了答案。

?

问：

I have three controllers: dog, cat, and horse.These controllers all inherit from the controller animal.In the controller animal, I have a before filter that authenticates a user as such:

? class Dog < Animal  skip_before_filter :authenticateend

??

See ActionController::Filters::ClassMethods for more info on filters and inheritance.