module ActiveUtils::Validateable

def attributes=(attributes)
  unless attributes.nil?
    for key, value in attributes
      send("#{key}=", value )
    end
  end
end

def errors
  @errors ||= Errors.new(self)
end

def initialize(attributes = {})
  self.attributes = attributes
end

def valid?
  errors.clear
  before_validate if respond_to?(:before_validate, true)
  validate if respond_to?(:validate, true)
  errors.empty?
end