Sha256: 26fe013a149c6f38460e9558af526a8be2fb9865f83c580708fc1e63270c067a
Contents?: true
Size: 793 Bytes
Versions: 5
Compression:
Stored size: 793 Bytes
Contents
class SedolValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
unless valid?(value.to_s)
record.errors[attribute] << (options[:message] || I18n.t('active_validation.errors.messages.sedol'))
end
end
private
def valid_checksum?(value)
digits = value.chars.map { |digit| digit.match(/[A-Z]/) ? (digit.ord - 55) : digit.to_i }
weights = [1, 3, 1, 7, 3, 9, 1]
total = 0
digits.each_with_index do |digit, i|
total += (weights[i] * digit)
end
(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
5 entries across 5 versions & 1 rubygems