Mongo DB，PHP在文档中添加或更新字段 [英] Mongo DB, PHP add or update a field in a document

问题描述

我有以下文件:

{
   "_id": ObjectId("5241f1d79b7e7aed05000000"),
   "description": {
     "nl": "Hallo",
     "en": "Hello"
    },
  "name": "Marc"
}

现在，我需要进行更新以更新一个现有字段或在描述中添加新字段.在php中，我对Mongo和以下代码使用了更新功能:

Now I need to update to update one existing field or add new field to the description. In php I use the update function for Mongo and the following code:

$new_data = array(
    '$set' => array(
    "description" => array(
         "de" => "hallo"
       )
    )
);

它执行的操作将删除所有其他字段，而只需插入"de"字段.我尝试用$ push替换$ set(我认为是这样做的)，但是$ setOnInsert也没有任何结果.

What it does it removes all other fields and just insert the "de" field. I tried replacing $set with $push (which I thought was made for this) but no result also $setOnInsert does not do anything.

如何解决此问题，以便我可以添加一个新字段(如果不存在)或进行更新(如果存在).

How can I solve this problem so that I can either add a new field (if it does not exist) or update if it exist.

谢谢

推荐答案

就像进行更新一样

{$set: {"description.de": "hello"}}

我想在您的代码中应该是:

I guess in your code it would be:

$new_data = array(
  '$set' => array(
    "description.de" => "hallo"
  )
);

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