protected function setAddress($address)
    {
        if (is_array($address)) {
            $new_address = [];

            foreach (['address', 'city', 'state', 'zip'] as $field) {
                if (array_key_exists($field, $address)) {
                    $new_address[] = $address[$field];
                }
            }

            $address = implode(' ', $new_address);
        }

        return $address;
    }