Sha256: a3d4b214a848b467a2b44d39b98464816c2bef3cd6b6e36a6b6375a3499a3b4a
Contents?: true
Size: 1014 Bytes
Versions: 8
Compression:
Stored size: 1014 Bytes
Contents
class CusipValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
return if valid?(value.to_s)
record.errors[attribute] <<
(options[:message] || I18n.t('active_validation.errors.messages.cusip'))
end
private
# rubocop:disable Lint/UselessAssignment
def valid_checksum?(value)
digits = value.chars.map { |chr| chr =~ /[A-Z]/ ? (chr.ord - 55) : chr.to_i }
even_values = digits.values_at(* digits.each_index.select(&:even?))
odd_values = digits.values_at(* digits.each_index.select(&:odd?))
values = odd_values.map { |int| int * 2 }.zip(even_values).flatten
values = values.inject(0) { |sum, int| sum += (int / 10) + int % 10 }
((10 - values) % 10) % 10
end
# rubocop:enable Lint/UselessAssignment
def valid_format?(value)
value =~ /^[0-9A-Z]{9}$/
end
def valid_length?(value)
value.present?
end
def valid?(value)
valid_length?(value) &&
valid_format?(value) &&
valid_checksum?(value)
end
end
Version data entries
8 entries across 8 versions & 1 rubygems