class ActiveModel::Type::ImmutableString

:nodoc:

def cast_value(value) 

def cast_value(value)
  result = \
    case value
    when true then "t"
    when false then "f"
    else value.to_s
    end
  result.freeze
end

def serialize(value) 

def serialize(value)
  case value
  when ::Numeric, ActiveSupport::Duration then value.to_s
  when true then "t"
  when false then "f"
  else super
  end
end

def type

:nodoc: 
def type
  :string
end