module FFaker::BankUS
Public Instance Methods
account_number(min_digits: 9, max_digits: 17)
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# File lib/ffaker/bank_us.rb, line 8 def account_number(min_digits: 9, max_digits: 17) FFaker.numerify('#' * rand(min_digits..max_digits)) end
routing_number()
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# File lib/ffaker/bank_us.rb, line 12 def routing_number partial_routing_number = FFaker.numerify('########') ninth_digit = generate_ninth_digit(partial_routing_number) "#{partial_routing_number}#{ninth_digit}" end
Private Instance Methods
generate_ninth_digit(num_string)
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# File lib/ffaker/bank_us.rb, line 21 def generate_ninth_digit(num_string) # This leverages the `Modules 10, Straight Summation` used for routing_numbers # See http://www.sxlist.com/techref/ecommerce/bank/routingnumber/index.htm # for more details num_array = num_string.chars.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