在Mongodb中更新嵌入式文档属性 [英] Updating embedded document property in Mongodb

问题描述

我有一个看起来像这样的文档:

I have a document that looks like this:

{
    "_id": 3,
    "Slug": "slug",
    "Title": "title",
    "Authors": [
        {
            "Slug": "slug",
            "Name": "name"
        }
    ]
}

我想基于Authors.Slug更新所有Authors.Name. 我试过了，但是没用:

I want to update all Authors.Name based on Authors.Slug. I tried this but it didn't work:

.update({"Authors.Slug":"slug"}, {$set: {"Authors.Name":"zzz"}});

我在做什么错了?

推荐答案

.update(Authors:{$elemMatch:{Slug:"slug"}}, {$set: {'Authors.$.Name':"zzz"}});

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