public static function get(AggregatorInterface $aggregator)
    {
        $config = $aggregator->getConfig();

        $query = $config->getTable()->find('all');
        $query = $aggregator->applyConditions($query);
        $query = static::join($aggregator, $query);

        $entity = $query->first();
        if (null === $entity) {
            return '';
        }

        return $aggregator->getResult($entity);
    }