Sha256: bf5388a3dabfeff1e991c23ed5c8e8024597a5ff2c25d8fdb739c5fedf9fa888
Contents?: true
Size: 788 Bytes
Versions: 4
Compression:
Stored size: 788 Bytes
Contents
class SedolValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
unless valid?(value.to_s)
record.errors[attribute] << (options.fetch(:message, false) || I18n.t('active_validation.errors.messages.sedol'.freeze))
end
end
private
def valid_checksum?(value)
digits = value.chars.map { |d| d.match(/[A-Z]/) ? (d.ord - 55) : d.to_i }
weights = [1, 3, 1, 7, 3, 9, 1].freeze
total = 0
digits.lazy.each_with_index { |d, i| total += (weights[i] * d) }
(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
4 entries across 4 versions & 1 rubygems