method

number_to_currency

Ruby on Rails latest stable (v2.2.1) - 2 notes - Class: ActionView::Helpers::NumberHelper

number_to_currency(number, options = {}) public

Formats a number into a currency string (e.g., $13.65). You can customize the format in the options hash.

Options

:precision - Sets the level of precision (defaults to 2).
:unit - Sets the denomination of the currency (defaults to "$").
:separator - Sets the separator between the units (defaults to ".").
:delimiter - Sets the thousands delimiter (defaults to ",").
:format - Sets the format of the output string (defaults to "%u%n"). The field types are:
```
  %u  The currency unit
  %n  The number
```

Examples

 number_to_currency(1234567890.50)                    # => $1,234,567,890.50
 number_to_currency(1234567890.506)                   # => $1,234,567,890.51
 number_to_currency(1234567890.506, :precision => 3)  # => $1,234,567,890.506

 number_to_currency(1234567890.50, :unit => "&pound;", :separator => ",", :delimiter => "")
 # => &pound;1234567890,50
 number_to_currency(1234567890.50, :unit => "&pound;", :separator => ",", :delimiter => "", :format => "%n %u")
 # => 1234567890,50 &pound;

Show source

# File actionpack/lib/action_view/helpers/number_helper.rb, line 71
      def number_to_currency(number, options = {})
        options.symbolize_keys!

        defaults  = I18n.translate('number.format''number.format', :locale => options[:locale], :raise => true) rescue {}
        currency  = I18n.translate('number.currency.format''number.currency.format', :locale => options[:locale], :raise => true) rescue {}
        defaults  = defaults.merge(currency)

        precision = options[:precision] || defaults[:precision]
        unit      = options[:unit]      || defaults[:unit]
        separator = options[:separator] || defaults[:separator]
        delimiter = options[:delimiter] || defaults[:delimiter]
        format    = options[:format]    || defaults[:format]
        separator = '' if precision == 0

        begin
          format.gsub(/%n/, number_with_precision(number,
            :precision => precision,
            :delimiter => delimiter,
            :separator => separator)
          ).gsub(/%u/, unit)
        rescue
          number
        end
      end

August 29, 2008

2 thanks

Brazilian Real (R$ 1.200,95)

helper:

 def number_to_currency_br(number)
   number_to_currency(number, :unit => "R$ ", :separator => ",", :delimiter => ".")
 end

October 20, 2008

1 thank

number_to_euro

in small cells:

  12
  €
  -->
  12 €

  def number_to_euro(amount)
    number_to_currency(amount,:unit=>'€').gsub(' ',nbsp)
  end

number_to_currency

Related methods

Options

Examples

Brazilian Real (R$ 1.200,95)

number_to_euro