class Faker::Bank
Public Class Methods
account_number(legacy_digits = NOT_GIVEN, digits: 10)
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# File lib/faker/default/bank.rb, line 8 def account_number(legacy_digits = NOT_GIVEN, digits: 10) warn_for_deprecated_arguments do |keywords| keywords << :digits if legacy_digits != NOT_GIVEN end output = '' output += rand.to_s[2..-1] while output.length < digits output[0...digits] end
iban(legacy_country_code = NOT_GIVEN, country_code: 'GB')
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# File lib/faker/default/bank.rb, line 20 def iban(legacy_country_code = NOT_GIVEN, country_code: 'GB') # Each country has its own format for bank accounts # Many of them use letters in certain parts of the account # Using regex patterns we can create virtually any type of bank account warn_for_deprecated_arguments do |keywords| keywords << :country_code if legacy_country_code != NOT_GIVEN end begin pattern = fetch("bank.iban_details.#{country_code.downcase}.bban_pattern") rescue I18n::MissingTranslationData raise ArgumentError, "Could not find iban details for #{country_code}" end # Use Faker::Base.regexify for creating a sample from bank account format regex account = Base.regexify(/#{pattern}/) # Add country code and checksum to the generated account to form valid IBAN country_code.upcase + iban_checksum(country_code, account) + account end
name()
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# File lib/faker/default/bank.rb, line 41 def name fetch('bank.name') end
routing_number()
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# File lib/faker/default/bank.rb, line 45 def routing_number valid_routing_number end
routing_number_with_format()
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# File lib/faker/default/bank.rb, line 49 def routing_number_with_format compile_fraction(valid_routing_number) end
swift_bic()
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# File lib/faker/default/bank.rb, line 53 def swift_bic fetch('bank.swift_bic') end
Private Class Methods
checksum(num_string)
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# File lib/faker/default/bank.rb, line 59 def checksum(num_string) num_array = num_string.split('').map(&:to_i) ( 7 * (num_array[0] + num_array[3] + num_array[6]) + 3 * (num_array[1] + num_array[4] + num_array[7]) + 9 * (num_array[2] + num_array[5]) ) % 10 end
compile_fraction(routing_num)
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# File lib/faker/default/bank.rb, line 102 def compile_fraction(routing_num) prefix = (1..50).to_a.map(&:to_s).sample numerator = routing_num.split('')[5..8].join.to_i.to_s denominator = routing_num.split('')[0..4].join.to_i.to_s prefix + '-' + numerator + '/' + denominator end
compile_routing_number()
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# File lib/faker/default/bank.rb, line 68 def compile_routing_number digit_one_two = %w[00 01 02 03 04 05 06 07 08 09 10 11 12] ((21..32).to_a + (61..72).to_a + [80]).each { |x| digit_one_two << x.to_s } routing_num = digit_one_two.sample + rand_numstring + rand_numstring + rand_numstring + rand_numstring + rand_numstring + rand_numstring + rand_numstring routing_num end
iban_checksum(country_code, account)
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Calculates the mandatory checksum in 3rd and 4th characters in IBAN format source: en.wikipedia.org/wiki/International_Bank_Account_Number#Validating_the_IBAN
# File lib/faker/default/bank.rb, line 77 def iban_checksum(country_code, account) # Converts letters to numbers according the iban rules, A=10..Z=35 account_to_number = "#{account}#{country_code}00".upcase.chars.map do |d| d =~ /[A-Z]/ ? (d.ord - 55).to_s : d end.join.to_i # This is answer to (iban_to_num + checksum) % 97 == 1 checksum = (1 - account_to_number) % 97 # Use leftpad to make the size always to 2 checksum.to_s.rjust(2, '0') end
rand_numstring()
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# File lib/faker/default/bank.rb, line 109 def rand_numstring (0..9).to_a.map(&:to_s).sample end
valid_checksum?(routing_number, checksum)
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# File lib/faker/default/bank.rb, line 98 def valid_checksum?(routing_number, checksum) routing_number[8].to_i == checksum end
valid_routing_number()
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# File lib/faker/default/bank.rb, line 90 def valid_routing_number routing_number = compile_routing_number checksum = checksum(routing_number) return routing_number if valid_checksum?(routing_number, checksum) routing_number[0..7] + checksum.to_s end