Sha256: 7ff1c2a737a175ef221c5ed4ce5bdabe73d3c7dcd9bb80ab10d9c173d6c54e5e
Contents?: true
Size: 810 Bytes
Versions: 4
Compression:
Stored size: 810 Bytes
Contents
class ImeiValidator < 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.imei'.freeze))
end
end
private
def valid_format?(value)
value =~ /\A[\d\.\:\-\s]+\z/i
end
def valid_length?(value)
value.present?
end
def valid_luhn?(value)
number = value.gsub(/\D/, ''.freeze).reverse
total = 0
number.chars.lazy.each_with_index do |c, i|
result = c.to_i
result *= 2 if i.odd?
result = (1 + (result - 10)) if (result >= 10)
total += result
end
(total % 10).zero?
end
def valid?(value)
valid_length?(value) &&
valid_format?(value) &&
valid_luhn?(value)
end
end
Version data entries
4 entries across 4 versions & 1 rubygems