Class: Valvat::Checksum::GR

Inherits:
Base
  • Object
show all
Defined in:
lib/valvat/checksum/gr.rb

Instance Attribute Summary

Attributes inherited from Base

#vat

Instance Method Summary collapse

Methods inherited from Base

check_digit_length, #initialize, #validate

Constructor Details

This class inherits a constructor from Valvat::Checksum::Base

Instance Method Details

#check_digit ⇒ Object 



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# File 'lib/valvat/checksum/gr.rb', line 6

def check_digit
  chk = sum_figures_by do |fig, i|
    fig * (2**(i + 1))
  end.modulo(11)
  chk > 9 ? 0 : chk
end