lib/arel/attributes/attribute.rb


# frozen_string_literal: true

module Arel # :nodoc: all
  module Attributes
    class Attribute < Struct.new :relation, :name
      include Arel::Expressions
      include Arel::Predications
      include Arel::AliasPredication
      include Arel::OrderPredications
      include Arel::Math

      def type_caster
        relation.type_for_attribute(name)
      end

      ###
      # Create a node for lowering this attribute
      def lower
        relation.lower self
      end

      def type_cast_for_database(value)
        relation.type_cast_for_database(name, value)
      end

      def able_to_type_cast?
        relation.able_to_type_cast?
      end
    end
  end

  Attribute = Attributes::Attribute
end