mongo更新数组字段_更新mongodb中嵌套数组中的几个字段(使用pymongo)

我正在尝试更新数组内数组中的一些字段

示例文档如下:{

id: 987654321

tweets: [

{

text: "RT @947FreshFM: A vigil will be held for #SandyHook victims at UMd. at 7pm at Nyumburu Ampitheater. @BlackTerp",

urls: [

],

id: 279718351289348100

},

{

text: "RT @WTOP: McDonnell: If you talk completely about guns, I think you're missing the point. #AskTheGov http://t.co/hbFt7t1n",

urls: [

{

status: null,

domain: null,

url: "http://t.co/hbFt7t1n",

period: null,

resolved_url: null,

annotation: null

}

],

id: 281061376275906560

}

],

}

我想将url数组更新为:

^{pr2}$

我用这样的方法来更新:collection.update({"id":987654321, "tweets.id":281061376275906560,"tweets.urls.url":"http://t.co/hbFt7t1n"},

{"$set":{

"tweets.urls.resolved_url":"http://wtop.com/?nid=610&sid=3162096",

"tweets.urls.domain": "wtop.com",

"tweets.urls.annotation2":"guncontrol"

}}, False,False)

但是它给了我错误can't append to array using string field name [urls]

有什么建议吗?在


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