LMongo\Query\Builder::performUpdate PHP 메소드

    protected function performUpdate(array $query)
    {
        $result = $this->connection->{$this->collection}->update($this->compileWheres($this), $query, array('multiple' => true));
        if (1 == (int) $result['ok']) {
            return $result['n'];
        }
        return 0;
    }