public function scopeAddCountryInfo($query)
    {
        $table = 'geonames_geonames';

        if (!isset($query->getQuery()->columns))
            $query = $query->addSelect($this->usefulScopeColumns);

        $query = $query
            ->leftJoin('geonames_country_infos as country_info', $table . '.country_code', '=',
                'country_info.iso'
            )
            ->addSelect(
                'country_info.geoname_id as country_info_geoname_id',
                'country_info.country as country_info_country'
            );

        return $query;
    }