Contents

class SerialTranslator::SerialTranslatorLengthValidator < ActiveModel::Validations::LengthValidator
  def validate_each(record, attribute, _value)
    translations = record.__send__("#{attribute}_translations")&.values || []
    translations = [nil] if translations.empty?
    translations.each do |value|
      next if options[:allow_blank] && value.to_s == '' ||
              options[:allow_nil]   && value.nil?
      validate_translation(record, attribute, value)
    end
  end

  # this is ActiveModel::Validations::LengthValidator#validate_each,
  # only extended with more interpolation args in error_options
  def validate_translation(record, attribute, value)
    value_length = value.respond_to?(:length) ? value.length : value.to_s.length
    error_options = options.except(*RESERVED_OPTIONS)

    CHECKS.each do |key, validity_check|
      next unless check_value = options[key]

      if !value.nil? || skip_nil_check?(key)
        next if value_length.send(validity_check, check_value)
      end

      error_options.merge!(count: check_value, actual_length: value_length)
      key == :minimum && error_options[:difference] = check_value - value_length
      key == :maximum && error_options[:difference] = value_length - check_value

      default_message = options[MESSAGES[key]]
      error_options[:message] ||= default_message if default_message
      record.errors.add(attribute, MESSAGES[key], error_options)
    end
  end

  def kind; :length end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
serial_translator-1.0.0	lib/serial_translator/serial_translator_length_validator.rb