diff options
Diffstat (limited to 'activesupport/lib/active_support/number_helper/number_to_currency_converter.rb')
-rw-r--r-- | activesupport/lib/active_support/number_helper/number_to_currency_converter.rb | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/number_helper/number_to_currency_converter.rb b/activesupport/lib/active_support/number_helper/number_to_currency_converter.rb new file mode 100644 index 0000000000..fb5adb574a --- /dev/null +++ b/activesupport/lib/active_support/number_helper/number_to_currency_converter.rb @@ -0,0 +1,46 @@ +module ActiveSupport + module NumberHelper + class NumberToCurrencyConverter < NumberConverter # :nodoc: + self.namespace = :currency + + def convert + number = self.number.to_s.strip + format = options[:format] + + if is_negative?(number) + format = options[:negative_format] + number = absolute_value(number) + end + + rounded_number = NumberToRoundedConverter.convert(number, options) + format.gsub(/%n/, rounded_number).gsub(/%u/, options[:unit]) + end + + private + + def is_negative?(number) + number.to_f.phase != 0 + end + + def absolute_value(number) + number.respond_to?("abs") ? number.abs : number.sub(/\A-/, '') + end + + def options + @options ||= begin + defaults = default_format_options.merge(i18n_opts) + # Override negative format if format options is given + defaults[:negative_format] = "-#{opts[:format]}" if opts[:format] + defaults.merge!(opts) + end + end + + def i18n_opts + # Set International negative format if not exists + i18n = i18n_format_options + i18n[:negative_format] ||= "-#{i18n[:format]}" if i18n[:format] + i18n + end + end + end +end |