Module: GS1::Extensions::GTIN

Included in:
Content, GTIN
Defined in:
lib/gs1/extensions/gtin.rb

Overview

Extension for a GS1 GTIN. Ensures correct formating and validation.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/gs1/extensions/gtin.rb', line 6

def self.included(base)
  base.define :check_digit
  base.define :length, allowed: [8, 12, 13, 14].freeze, barcode: 14

  base.allowed_lengths.each do |length|
    define_method "to_gtin_#{length}" do
      data.to_s.rjust(length, '0')
    end
  end
end

Instance Method Details

#to_s ⇒ Object

Default to GTIN-14 since it is the most common format.



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# File 'lib/gs1/extensions/gtin.rb', line 18

def to_s
  return unless data

  to_gtin_14
end