Class: ValidationKit::PostalCodeValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/validation_kit/postal_code_validator/postal_code_validator.rb

Instance Method Summary collapse

Instance Method Details

#disallowed_characters_for_country(country_code) ⇒ Object 



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# File 'lib/validation_kit/postal_code_validator/postal_code_validator.rb', line 17

def disallowed_characters_for_country(country_code)
  if country_code.blank?
    nil
  elsif ["US", "AU", "NZ"].include?(country_code)
    /[^0-9]/
  elsif ["CA", "UK"].include?(country_code)
    /[^0-9A-Z]/
  else
    nil
  end
end

#format_as_postal_code(arg, country_code, disallowed_characters) ⇒ Object 



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# File 'lib/validation_kit/postal_code_validator/postal_code_validator.rb', line 62

def format_as_postal_code(arg, country_code, disallowed_characters)
  return nil if (arg.blank? or country_code.blank? or !postal_code_regex_for_country(country_code))

  postal_code = arg.gsub(disallowed_characters, '')

  if ["US"].include?(country_code)
    digit_count = postal_code.length
    if digit_count == 5
      return postal_code
    elsif digit_count == 9
      return "%s-%s" % [postal_code[0..4], postal_code[5..8]]
    else
      return nil
    end

  elsif ["AU", "NZ"].include?(country_code)
    postal_code

  elsif ["CA"].include?(country_code)
    fsa = postal_code[0..2]
    lda = postal_code[3..5]

    postal_code = "%s %s" % [fsa, lda]
    postal_code.upcase
  end
end

#postal_code_regex_for_country(country_code) ⇒ Object 



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# File 'lib/validation_kit/postal_code_validator/postal_code_validator.rb', line 3

def postal_code_regex_for_country(country_code)
  if country_code.blank?
    nil
  elsif ["AU", "NZ"].include?(country_code)
    /\d{4}/
  elsif ["US"].include?(country_code)
    /\d{5}(-\d{4})?/
  elsif ["CA"].include?(country_code)
    /[ABCEGHJKLMNPRSTVXY]\d[ABCEGHJKLMNPRSTWVXYZ]\d[ABCEGHJKLMNPRSTWVXYZ]\d/
  else
    nil
  end
end

#validate_each(record, attribute, value) ⇒ Object 



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# File 'lib/validation_kit/postal_code_validator/postal_code_validator.rb', line 29

def validate_each(record, attribute, value)
  if options[:country].is_a?(String)
    country = options[:country]
  elsif options[:country].is_a?(Symbol) and record.respond_to?(options[:country])
    country = record.send(options[:country])
  elsif record.respond_to?(:country)
    country = record.send(:country)
  else
    country = false
  end

  return unless country
  current_regex = postal_code_regex_for_country(country)
  return unless current_regex
  disallowed_characters = disallowed_characters_for_country(country)

  new_value = value.nil? ? "" : value.upcase.gsub(disallowed_characters, '')

  model_name = record.class.to_s

  unless (options[:allow_blank] && new_value.blank?) || new_value =~ current_regex
    message = I18n.t("activerecord.errors.models.#{model_name.underscore}.attributes.#{attribute}.invalid",
                     :default => [:"activerecord.errors.models.#{model_name.underscore}.invalid",
                                  options[:message],
                                  :'activerecord.errors.messages.invalid'])
    record.errors[attribute].add message
  else
    record.send(attribute.to_s + '=',
      format_as_postal_code(new_value, country, disallowed_characters)
    ) if options[:set]
  end
end