method_missing

# File activerecord/lib/active_record/attribute_methods.rb, line 200
    def method_missing(method, *args, &block) # :nodoc:
      self.class.define_attribute_methods
      if respond_to_without_attributes?(method)
        # make sure to invoke the correct attribute method, as we might have gotten here via a `super`
        # call in a overwritten attribute method
        if attribute_method = self.class.find_generated_attribute_method(method)
          # this is probably horribly slow, but should only happen at most once for a given AR class
          attribute_method.bind(self).call(*args, &block)
        else
          return super unless respond_to_missing?(method, true)
          send(method, *args, &block)
        end
      else
        super
      end
    end