Sha256: f2778a0b9d2b3a10673f7985236eb12e44cd3684eb1ec0eb097cb90ba6ac8ab8
Contents?: true
Size: 779 Bytes
Versions: 8
Compression:
Stored size: 779 Bytes
Contents
class SedolValidator < ActiveModel::EachValidator
WEIGHTS ||= [1, 3, 1, 7, 3, 9, 1].freeze
def validate_each(record, attribute, value)
return if valid?(value.to_s)
record.errors[attribute] <<
(options[:message] || I18n.t('active_validation.errors.messages.sedol'))
end
private
def valid_checksum?(value)
digits = value.chars.map { |dgt| dgt =~ /[A-Z]/ ? (dgt.ord - 55) : dgt.to_i }
total = 0
digits.each_with_index { |dgt, idx| total += (WEIGHTS[idx] * dgt) }
(10 - total % 10) % 10
end
def valid_format?(value)
value =~ /^([A-Z0-9]{6})(\d{1})$/
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