public function getFullNameRevAttribute()
    {
        $first = [];
        $first[] = $this->first_name  ?: '';
        $first[] = $this->middle_name ?: '';

        $names = [];
        $names[] = $this->last_name ?: '';
        $names[] = implode(' ', array_filter($first));

        return trim(implode(', ', array_filter($names)));
    }