# File lib/merb-auth-more/mixins/salted_user/mongoid_salted_user.rb, line 5
        def self.extended(base)
          base.class_eval do

            field :crypted_password, :type => String

            if Merb::Authentication::Mixins::SaltedUser > base
              field :salt, :type => String
            end

            validates_presence_of :password, :if => proc{|m| m.password_required?}
            validates_confirmation_of :password, :if => proc{|m| m.password_required?}

            before_save   :encrypt_password
          end # base.class_eval

        end