【发布时间】:2021-12-25 21:47:28
【问题描述】:
我有这样的架构
const vocabularySchema = new mongoose.Schema({
vocabulary: { type: String, required: true },
defination: { type: String, required: true },
exampleSentences: [{ type: String }],
note: { type: String },
timeStamp: { type: Date, default: Date.now },
resource: { type: String },
owner: { type: mongoose.Schema.Types.ObjectId, ref: "User" },
});
查看“定义”键。拼写不正确。我想把它改回“定义”。但问题是有很多文件添加了“定义”。如何将它们改回“定义”?
为了更清楚,我在这些数据中添加了关键“定义”。它们如下
[
{
_id: new ObjectId("618fe4f6ee433e36f0392785"),
vocabulary: 'destiny',
defination: 'the events that will necessarily happen to a particular person or thing in the future.',
exampleSentences: [ 'If something is our destiny, there is no way we can avoid it.' ],
note: '',
timeStamp: 2021-11-13T16:16:54.897Z,
resource: '',
owner: new ObjectId("6162e68db8d492f28b8e7870"),
__v: 0
}
{
_id: new ObjectId("618fe554ee433e36f0392795"),
vocabulary: 'rumor',
defination: 'a currently circulating story or report of uncertain or doubtful truth.',
exampleSentences: [ 'You should never be bothered by rumor s.' ],
note: '',
timeStamp: 2021-11-13T16:18:28.523Z,
resource: '',
owner: new ObjectId("6162e68db8d492f28b8e7870"),
__v: 0
}
]
我想在这些现有文档中将键“定义”更改为“定义”。这是我迄今为止尝试过但没有奏效的方法。
Vocabulary.find({}).then((voca) => {
voca.forEach((v) => {
v["definition"] = v["defination"];
console.log(v);
});
});
请帮助我如何做到这一点。
【问题讨论】:
-
只看你最后一段代码 - 分配不应该反过来吗?
-
您能说得更准确些吗?我不明白你的意思。
-
没关系,是我没有做研究,对不起。看看这里,它涵盖了你的问题:) docs.mongodb.com/manual/reference/operator/update/rename
-
我猜它应该是 v["definition"] =v["defination"] 因为我想要带有“definition”的新键并且它们的值来自“definition”。我在这里找到它stackoverflow.com/questions/4647817/…。感谢您的文档链接。我会读的。
标签: node.js database mongodb mongoose mongoose-schema