class Quickbooks::Model::CustomField

def value
  case type
  when 'BooleanType' then boolean_value == 'true'
  when 'StringType' then string_value
  when 'DateType' then date_value
  when 'NumberType' then number_value
  end
end

def value=(value)
  case type
  when 'BooleanType' then self.boolean_value = value ? 'true' : 'false'
  when 'StringType' then self.string_value = value
  when 'DateType' then self.date_value = value
  when 'NumberType' then self.number_value = value
  end
end