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Tag: v4.1.3
47 lines (38 sloc) 1.291 kB
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
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