module ActiveRecord
  module TypeCaster
    class Map # :nodoc:
      def initialize(types)
        @types = types
      end

      def type_cast_for_database(attr_name, value)
        return value if value.is_a?(Arel::Nodes::BindParam)
        type = types.type_for_attribute(attr_name.to_s)
        type.serialize(value)
      end

      # TODO Change this to private once we've dropped Ruby 2.2 support.
      # Workaround for Ruby 2.2 "private attribute?" warning.
      protected

        attr_reader :types
    end
  end
end
