Contents

##
# EAN-13 Barcode 是13位条形码。
# https://en.wikipedia.org/wiki/EAN-13
# https://en.wikipedia.org/wiki/International_Article_Number_(EAN)

class Unidom::ArticleNumber::Ean13Barcode < Unidom::ArticleNumber::ApplicationRecord

  RESTRICTED_DISTRIBUTION_GS1_PREFIXES = (('020'..'029').to_a + ('040'..'049').to_a + ('200'..'299').to_a).freeze

  self.table_name = 'unidom_ean_13_barcodes'

  include Unidom::Common::Concerns::ModelExtension
  include Unidom::ArticleNumber::Concerns::AsBarcode

  validates :code,           uniqueness: true, length: { minimum: 13 }, numericality: { only_integer: true }
  validates :gs1_prefix,     presence: true,   length: { is:       3 }, numericality: { only_integer: true }
  validates :company_number, presence: true,   length: { is:       4 }, numericality: { only_integer: true }
  validates :item_reference, presence: true,   length: { is:       5 }, numericality: { only_integer: true }
  validates :check_digit,    presence: true,   length: { is:       1 }, numericality: { only_integer: true }

  def code=(code)
    code = code.to_s
    write_attribute :code, code
    if code.present?
      write_attribute :gs1_prefix,     code[0..2]
      write_attribute :company_number, code[3..6]
      write_attribute :item_reference, code[7..11]
      write_attribute :check_digit,    code[12]
    end
  end

  def restricted_distribution?
    self.class::RESTRICTED_DISTRIBUTION_GS1_PREFIXES.include? gs1_prefix
  end

end unless Unidom::Common::Neglection.namespace_neglected? 'Unidom::ArticleNumber::Ean13Barcode'

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
unidom-article_number-2.3.4	app/models/unidom/article_number/ean13_barcode.rb