Phalcon\Db\Adapter\MongoDB\GridFS\WritableStream::fileCollectionInsert PHP Method

    private function fileCollectionInsert()
    {
        if ($this->isClosed) {
            // TODO: Should this be an error condition? e.g. BadMethodCallException
            return;
        }
        $md5 = hash_final($this->ctx);
        $this->file['length'] = $this->length;
        $this->file['md5'] = $md5;
        $this->collectionWrapper->insertFile($this->file);
        return $this->file['_id'];
    }