Sha256: 7622aea08fbaf86fc200b6ec507f238856479f15f12ff73a88589191e49e9958
Contents?: true
Size: 686 Bytes
Versions: 11
Compression:
Stored size: 686 Bytes
Contents
class SedolValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
unless valid?(value)
record.errors[attribute] << (options[:message] || I18n.t('flash_validators.errors.messages.sedol'))
end
end
private
def valid_format?(value)
value =~ /^([A-Z0-9]{6})(\d{1})$/
end
def valid_checksum?(value)
digits = value.split('').map { |i| i.match(/[A-Z]/) ? (i.ord - 55) : i.to_i }
weights = [1, 3, 1, 7, 3, 9, 1]
sum = 0
digits.each_with_index do |i, idx|
sum += weights[idx] * i
end
(10 - sum % 10) % 10
end
def valid?(value)
valid_format?(value) &&
valid_checksum?(value)
end
end
Version data entries
11 entries across 11 versions & 1 rubygems