class Faker::Finance
Constants
- CREDIT_CARD_TYPES
Public Class Methods
credit_card(*types)
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# File lib/faker/default/finance.rb, line 10 def credit_card(*types) types = CREDIT_CARD_TYPES if types.empty? type = sample(types) template = numerify(fetch("finance.credit_card.#{type}")) # calculate the luhn checksum digit multiplier = 1 luhn_sum = template.gsub(/[^0-9]/, '').split('').reverse.map(&:to_i).inject(0) do |sum, digit| multiplier = (multiplier == 2 ? 1 : 2) sum + (digit * multiplier).to_s.split('').map(&:to_i).inject(0) { |digit_sum, cur| digit_sum + cur } end # the sum plus whatever the last digit is must be a multiple of 10. So, the # last digit must be 10 - the last digit of the sum. luhn_digit = (10 - (luhn_sum % 10)) % 10 template.gsub('L', luhn_digit.to_s) end
vat_number(legacy_country = NOT_GIVEN, country: 'BR')
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# File lib/faker/default/finance.rb, line 29 def vat_number(legacy_country = NOT_GIVEN, country: 'BR') warn_for_deprecated_arguments do |keywords| keywords << :country if legacy_country != NOT_GIVEN end numerify(fetch("finance.vat_number.#{country}")) rescue I18n::MissingTranslationData raise ArgumentError, "Could not find vat number for #{country}" end
vat_number_keys()
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# File lib/faker/default/finance.rb, line 39 def vat_number_keys translate('faker.finance.vat_number').keys end