Class: Kirico::SjisBytesizeValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/kirico/validators/sjis_bytesize_validator.rb

Constant Summary collapse

MESSAGES = 
{ is: :wrong_length_in_bytes, minimum: :too_short_in_bytes, maximum: :too_long_in_bytes }.freeze
CHECKS = 
{ is: :==, minimum: :>=, maximum: :<= }.freeze
RESERVED_OPTIONS = 
%i(minimum maximum within is too_short too_long)

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ SjisBytesizeValidator

Returns a new instance of SjisBytesizeValidator.



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# File 'lib/kirico/validators/sjis_bytesize_validator.rb', line 20

def initialize(options)
  range = (options.delete(:in) || options.delete(:within))
  if range
    raise ArgumentError, ':in and :within must be a Range' unless range.is_a?(Range)
    options[:minimum] = range.min
    options[:maximum] = range.max
  end

  if options[:allow_blank] == false && options[:minimum].nil? && options[:is].nil?
    options[:minimum] = 1
  end

  super
end

Instance Method Details

#check_validity! ⇒ Object 



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# File 'lib/kirico/validators/sjis_bytesize_validator.rb', line 35

def check_validity!
  keys = CHECKS.keys & options.keys

  if keys.empty?
    raise ArgumentError, 'Range unspecified. Specify the :in, :within, :maximum, :minimum, or :is option.'
  end

  keys.each do |key|
    value = options[key]

    unless (value.is_a?(Integer) && value >= 0) || value == Float::INFINITY
      raise ArgumentError, ":#{key} must be a nonnegative Integer or Infinity"
    end
  end
end

#validate_each(record, attribute, value = '') ⇒ Object 



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# File 'lib/kirico/validators/sjis_bytesize_validator.rb', line 51

def validate_each(record, attribute, value = '')
  value_length = value.to_s.encode('CP932', undef: :replace).bytesize

  errors_options = options.except(*RESERVED_OPTIONS)

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

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

    errors_options[:count] = check_value

    default_message = options[MESSAGES[key]]
    errors_options[:message] ||= default_message if default_message

    record.errors.add(attribute, MESSAGES[key], errors_options)
  end
end