Module: ActiveSupport::NumericWithFormat

Included in:
BigDecimal, Float, Integer
Defined in:
activesupport/lib/active_support/core_ext/numeric/conversions.rb

Instance Method Summary collapse

Instance Method Details

#to_fs(format = nil, options = nil) ⇒ Object Also known as: to_formatted_s

Provides options for converting numbers into formatted strings. Options are provided for phone numbers, currency, percentage, precision, positional notation, file size, and pretty printing.

This method is aliased to to_formatted_s.

Options

For details on which formats use which options, see ActiveSupport::NumberHelper

Examples

Phone Numbers:
5551234.to_fs(:phone)                                     # => "555-1234"
1235551234.to_fs(:phone)                                  # => "123-555-1234"
1235551234.to_fs(:phone, area_code: true)                 # => "(123) 555-1234"
1235551234.to_fs(:phone, delimiter: ' ')                  # => "123 555 1234"
1235551234.to_fs(:phone, area_code: true, extension: 555) # => "(123) 555-1234 x 555"
1235551234.to_fs(:phone, country_code: 1)                 # => "+1-123-555-1234"
1235551234.to_fs(:phone, country_code: 1, extension: 1343, delimiter: '.')
# => "+1.123.555.1234 x 1343"

Currency:
1234567890.50.to_fs(:currency)                     # => "$1,234,567,890.50"
1234567890.506.to_fs(:currency)                    # => "$1,234,567,890.51"
1234567890.506.to_fs(:currency, precision: 3)      # => "$1,234,567,890.506"
1234567890.506.to_fs(:currency, round_mode: :down) # => "$1,234,567,890.50"
1234567890.506.to_fs(:currency, locale: :fr)       # => "1 234 567 890,51 €"
-1234567890.50.to_fs(:currency, negative_format: '(%u%n)')
# => "($1,234,567,890.50)"
1234567890.50.to_fs(:currency, unit: '£', separator: ',', delimiter: '')
# => "£1234567890,50"
1234567890.50.to_fs(:currency, unit: '£', separator: ',', delimiter: '', format: '%n %u')
# => "1234567890,50 £"

Percentage:
100.to_fs(:percentage)                                  # => "100.000%"
100.to_fs(:percentage, precision: 0)                    # => "100%"
1000.to_fs(:percentage, delimiter: '.', separator: ',') # => "1.000,000%"
302.24398923423.to_fs(:percentage, precision: 5)        # => "302.24399%"
302.24398923423.to_fs(:percentage, round_mode: :down)   # => "302.243%"
1000.to_fs(:percentage, locale: :fr)                    # => "1 000,000%"
100.to_fs(:percentage, format: '%n  %')                 # => "100.000  %"

Delimited:
12345678.to_fs(:delimited)                     # => "12,345,678"
12345678.05.to_fs(:delimited)                  # => "12,345,678.05"
12345678.to_fs(:delimited, delimiter: '.')     # => "12.345.678"
12345678.to_fs(:delimited, delimiter: ',')     # => "12,345,678"
12345678.05.to_fs(:delimited, separator: ' ')  # => "12,345,678 05"
12345678.05.to_fs(:delimited, locale: :fr)     # => "12 345 678,05"
98765432.98.to_fs(:delimited, delimiter: ' ', separator: ',')
# => "98 765 432,98"

Rounded:
111.2345.to_fs(:rounded)                                      # => "111.235"
111.2345.to_fs(:rounded, precision: 2)                        # => "111.23"
111.2345.to_fs(:rounded, precision: 2, round_mode: :up)       # => "111.24"
13.to_fs(:rounded, precision: 5)                              # => "13.00000"
389.32314.to_fs(:rounded, precision: 0)                       # => "389"
111.2345.to_fs(:rounded, significant: true)                   # => "111"
111.2345.to_fs(:rounded, precision: 1, significant: true)     # => "100"
13.to_fs(:rounded, precision: 5, significant: true)           # => "13.000"
111.234.to_fs(:rounded, locale: :fr)                          # => "111,234"
13.to_fs(:rounded, precision: 5, significant: true, strip_insignificant_zeros: true)
# => "13"
389.32314.to_fs(:rounded, precision: 4, significant: true)    # => "389.3"
1111.2345.to_fs(:rounded, precision: 2, separator: ',', delimiter: '.')
# => "1.111,23"

Human-friendly size in Bytes:
123.to_fs(:human_size)                                    # => "123 Bytes"
1234.to_fs(:human_size)                                   # => "1.21 KB"
12345.to_fs(:human_size)                                  # => "12.1 KB"
1234567.to_fs(:human_size)                                # => "1.18 MB"
1234567890.to_fs(:human_size)                             # => "1.15 GB"
1234567890123.to_fs(:human_size)                          # => "1.12 TB"
1234567890123456.to_fs(:human_size)                       # => "1.1 PB"
1234567890123456789.to_fs(:human_size)                    # => "1.07 EB"
1234567.to_fs(:human_size, precision: 2)                  # => "1.2 MB"
1234567.to_fs(:human_size, precision: 2, round_mode: :up) # => "1.3 MB"
483989.to_fs(:human_size, precision: 2)                   # => "470 KB"
1234567.to_fs(:human_size, precision: 2, separator: ',')  # => "1,2 MB"
1234567890123.to_fs(:human_size, precision: 5)            # => "1.1228 TB"
524288000.to_fs(:human_size, precision: 5)                # => "500 MB"

Human-friendly format:
123.to_fs(:human)                                       # => "123"
1234.to_fs(:human)                                      # => "1.23 Thousand"
12345.to_fs(:human)                                     # => "12.3 Thousand"
1234567.to_fs(:human)                                   # => "1.23 Million"
1234567890.to_fs(:human)                                # => "1.23 Billion"
1234567890123.to_fs(:human)                             # => "1.23 Trillion"
1234567890123456.to_fs(:human)                          # => "1.23 Quadrillion"
1234567890123456789.to_fs(:human)                       # => "1230 Quadrillion"
489939.to_fs(:human, precision: 2)                      # => "490 Thousand"
489939.to_fs(:human, precision: 2, round_mode: :down)   # => "480 Thousand"
489939.to_fs(:human, precision: 4)                      # => "489.9 Thousand"
1234567.to_fs(:human, precision: 4,
                 significant: false)                             # => "1.2346 Million"
1234567.to_fs(:human, precision: 1,
                 separator: ',',
                 significant: false)                             # => "1,2 Million"

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# File 'activesupport/lib/active_support/core_ext/numeric/conversions.rb', line 111

def to_fs(format = nil, options = nil)
  return to_s if format.nil?

  case format
  when Integer, String
    to_s(format)
  when :phone
    ActiveSupport::NumberHelper.number_to_phone(self, options || {})
  when :currency
    ActiveSupport::NumberHelper.number_to_currency(self, options || {})
  when :percentage
    ActiveSupport::NumberHelper.number_to_percentage(self, options || {})
  when :delimited
    ActiveSupport::NumberHelper.number_to_delimited(self, options || {})
  when :rounded
    ActiveSupport::NumberHelper.number_to_rounded(self, options || {})
  when :human
    ActiveSupport::NumberHelper.number_to_human(self, options || {})
  when :human_size
    ActiveSupport::NumberHelper.number_to_human_size(self, options || {})
  when Symbol
    to_s
  else
    to_s(format)
  end
end