attributes_builder

# File activerecord/lib/active_record/model_schema.rb, line 416
      def attributes_builder # :nodoc:
        unless defined?(@attributes_builder) && @attributes_builder
          defaults = _default_attributes.except(*(column_names - [primary_key]))
          @attributes_builder = ActiveModel::AttributeSet::Builder.new(attribute_types, defaults)
        end
        @attributes_builder
      end