如何在不覆盖旧记录的情况下更新文档的字段

Question

基础设施建设

mongodb连接器

private $db;

    public function __construct(){
        //enter code here`
        try {
            $this->db = new MongoDB\Driver\Manager('mongodb://192.168.0.117:27017');
        }
        catch (Exception $e) {
            die('Erreur : '.$e->getmessage());
        }
    }

代码更新文档

public function mongoWrite($method, $records, $dbCollection, $filter = [], $options = ['upsert' => false]){
    $this->__construct();
    try {
        $bulk = new MongoDB\Driver\BulkWrite();
        if ($method == 'insert'){
            foreach ($records as $record) {
                $bulk->insert($record);
            }
        }
        elseif ($method == 'update') {
            foreach ($records as $record) {
                $bulk->update($filter, ['$set' => $record], $options);
            }
        }
    }
    catch (MongoDB\Driver\Exception\Exception $e) {
        echo $e->getMessage();
    }
    return $this->db->executeBulkWrite($dbCollection, $bulk);
}

我的基本文件如下

{ 
    "_id" : ObjectId("5c067dbfefad3805b000306b"), 
    "qr_code" : "mVkcMV822UUH6OsdZclJaDe0/idEA==", 
    "approot" : "JAUGEAGE", 
    "NIU" : "494-417-972", 
    "proprietaire" : "nomo pierre", 
    "document" : "Photos camion", 
    "donnees" : [
                    {
                        "content" : "computer"
                    }
                ], 
     "statut" : "desactivé", 
     "date_creation" : "2018-12-04 13:14:39", 
     "date_modification" : ""
 }

更新文档后

public function UpdateDataQr($qrcode, $args){
    $array = [];
    $array['donnees'][0]['content'] = 'blabla';
    var_dump($this->mongoWrite('update', [$array], 'amla_sqr.sqrdata', ['qr_code' => $qrcode]));
}

我看到在donnee中没有新插入，但是内容被新值压碎了。

请帮助！