/**
* @param integer $region_id
* @param string $city_name
* @throws Exception
* @return static
*/
public static function upsert($attributes)
{
if (isset(self::$_models[$attributes['city_id']])) {
return self::$_models[$attributes['city_id']];
} else {
$model = City::findOne($attributes['city_id']);
if (!$model) {
$model = new City();
}
$model->setAttributes($attributes);
$model->save(false);
return self::$_models[$attributes['city_id']] = $model;
}
}
