Contents

# frozen_string_literal: true

class IsbnValidator < BaseValidator

  CHARACTERS = %w[
    0 1 2 3 4 5 6 7 8 9 x
  ].freeze

  private

  def valid_attr?
    values = value.to_s.gsub(/-| /, "").downcase.chars
    [10, 13].include?(values.size) && values.all? { |chr| CHARACTERS.include?(chr) }
  end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
lite-validators-1.8.0	lib/lite/validators/isbn_validator.rb