before_filter running multiple methods

Question

is it possible to have:

before_filter :authenticate_user! || :authenticate_admin!

Answer 1

before_filter :do_authentication

def do_authentication
  authenticate_user! || authenticate_admin!
end

Answer 2

before_filter {authenticate_user! || authenticate_admin!}

Passing in a proc to the before_filter method, would be the closest to what you have provided in you question.