Question

我定义了这个架构：

var bookCollection = new mongoose.Schema({

    book:[{
        bookTitle: String,
        bookOrder: Number,
        bookChapters: [{
            chapterTitle: String,
            chapterIntro: String,
            chapterOrder: Number,
            chapterArticles: [{
                articleTitle: String,
                articleIntro: String,
                articleOrder: Number,
                articleHeadings: [{
                    headingTitle: String,
                    headingOrder: Number
                }]
            }]
        }]
    }]


});

var bookModel = mongoose.model('bookModel', bookCollection);

然后我将1个文档保存到mongoDB，这是使用db.bookmodels.find（）

进行检查时的JSON对象

{
"_id": ObjectId("530cc92710f774355434b394"),
"book": [
    {
        "bookTitle": "Javascript",
        "bookOrder": 300,
        "_id": ObjectId("530cc92710f774355434b395"),
        "bookChapters": [
            {
                "chapterTitle": "Functions",
                "chapterIntro": "All about javascript functions",
                "chapterOrder": 500,
                "_id": ObjectId("530cc92710f774355434b396"),
                "chapterArticles": [
                    {
                        "articleTitle": "A visual illustration of the JS function",
                        "articleIntro": "Something to see here, check it out",
                        "articleOrder": 500,
                        "_id": ObjectId("530cc92710f774355434b397"),
                        "articleHeadings": [
                            {
                                "headingTitle": "Parts of a function",
                                "headingOrder": 500,
                                "_id": ObjectId("530cc92710f774355434b398")
                            }
                        ]
                    }
                ]
            }
        ]
    }
],
"__v": 0

}

如果我想将 headingOrder 更改为100而不是500，我将如何使用mongoose.js更新数据库？我一直在尝试几件事，我似乎无法理解它。

你到处都可以看到简单模式的例子，但从来没有像这样的复杂模式。

THX。

Answer 1

您始终可以将文档加载到内存中并进行修改，即book[0].bookChapters[0].chapterArticles[0].articleHeadings[0].headingOrder = 100然后save()。

上面链接中的示例完全相同，document.find()后跟save()。

Node.js：使用mongoose.js更新mongoDB文档

1 个答案: