DCI dynamic super class

gistfile1.rb

# Define a new role "super class"
Applicant = Role.new do
  def apply
    # ...
  end
end

# Applicant[User] returns a cacheable class that inherits from User but
# has the behavior of the Applicant role as well
# i.e. calling Applicant[User] is equivalent to writing this:
# class ApplicantOfUser < User
#   def apply
#     # ...
#   end
# end
applicant = Applicant[User].find_by_email 'my@email.com'

applicant.apply