Skip before_filter in Rails
Names and objects have been simplified for clarity's sake. The basic concept remains the same.
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:
before_filter :authenticate
def authenticate
authentica开发者_JAVA百科te_or_request_with_http_basic do |name, password|
name == "foo" && password == "bar"
end
end
In the show
action of dog
, I need to have open access to all users (skip the authentication).
If I were to write the authentication separately for dog
, I could do something like this:
before_filter :authenticate, :except => :show
But since dog
inherits from animal
, I do not have access to the controller-specific actions. Adding :except => :show
in the animal
controller will not only skip authentication for the show
action of dog
, but also that of cat
and horse
. This behaviour is not desired.
How can I skip the authentication only for the show
action of dog
while still inheriting from animal
?
class Dog < Animal
skip_before_filter :authenticate, :only => :show
end
See ActionController::Filters::ClassMethods for more info on filters and inheritance.
The two answers given are half right. In order to avoid making all your dog actions open, you need to qualify the skip_before_filter to only apply to the 'show' action as follows:
class Dog < Animal
skip_before_filter :authenticate, :only => :show
end
For this you can use skip_before_filter
It's explained in the Rails API
In your example dog
just would have to contain
skip_before_filter :authenticate
Just a small update that using rails 4, it is now skip_before_action :authenticate, :only => :show
and that before_filters should now use before_action
instead.
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