How do I before_filter a Module::Class::method?

I have a custom Module on my Rails project, and I want it to be a before_f开发者_运维知识库ilter, is there a way I can do?

before_filter TokenGenerator::Generator.generate_token("mytoken")

You can use a block as a before_filter:

before_filter do |controller|
    TokenGenerator::Generator.generate_token("mytoken")
end

Or you could create a separate class:

class TokenFilter
    def self.filter(controller)
        TokenGenerator::Generator.generate_token("mytoken")
    end
end

#...

before_filter TokenFilter

Or the usual method:

before_filter :token_generator

#...

private

def token_generator
    TokenGenerator::Generator.generate_token("mytoken")
end

You could create a delegator method to generate_token, then use the delegator method with the before filter...

before_filter :generate_token

def generate_token
  TokenGenerator::Generator.generate_token("mytoken")
end