class UrlValidator < ActiveModel::EachValidator def validate_each(record, attribute, value) if value.present? valid = begin uri = URI.parse(value) uri.is_a?(URI::HTTP) && !uri.host.nil? && uri.host.include?(".") rescue URI::InvalidURIError => e if (e.message =~ /URI must be ascii only/) value = URI.encode(value) retry end nil end unless valid record.errors[attribute] << (options[:message] || I18n.t('errors.messages.invalid')) end end end end