// 加载文档constdoc=awaitArticleModel.findOne({name:'lio-zero'})// 使用 Document.updateOne() 加载文档等同于 ArticleModel.updateOne({ _id: doc._id }, update)constupdate={title:'使用 findOne() 方法更新文档'}awaitdoc.updateOne(update)constupdatedDoc=awaitArticleModel.findOne({name:'lio-zero'...
});// Update the document using `Document#updateOne()`// Equivalent to `CharacterModel.updateOne({ _id: doc._id }, update)`const update = { title: 'King in the North' };await doc.updateOne(update);const updatedDoc = await CharacterModel.findOne({ name: 'Jon Snow' });updatedDoc....
age = 30; return doc.save(); } }) .then(() => { console.log('Document updated successfully'); }) .catch((error) => { console.error('Error updating document', error); }); 在这个示例中,我们首先连接到名为"mydatabase"的MongoDB数据库。然后定义了一个名为"Model"的模型,包含"name"和...
要在 MongoDB 应用给定后返回文档 update，您需要将 new 选项设置为 true：// If you set the `new` option to `true`, Mongoose will// return the document with the update applied.const filter = { name: 'Luke Skywalker' };const update = { rank: 'Jedi Knight' };const opts = { new: tr...
Mongoose findOneAndUpdate 是 Mongoose 库中的一个方法,用于在 MongoDB 中查找并更新文档。在更新子文档中的对象时,可以使用以下方法: 首先,确保你的模型定义了子文档的结构。子文档可以通过嵌套的方式在父文档中定义。例如,如果你有一个父文档 User,其中包含一个子文档 Address,你可以在 User 模型中...
使用updateOne，updateMany或findByIdAndUpdate方法，我们可以更新数据库中的数据：Blog.updateOne({ title:...
在一个命令中向MongoDB服务器发送多个insertOne、updateOne、updateMany、replaceOne、deleteOne和/或...
updateMerchantLastProductUpdate:function(mID) { now =newDate();varquery = {"merchant_aw_id": mID };Merchants.update(query, {"product_feed_updated": now },function(err) {if(err)returnconsole.error(err); }) } Route app.get('/queries',function(req, res) { queries.updateMerchantLastProdu...
Also note that if you are able to build an array of all of the scores that need to be updated, you could use a similar statement to update all of the scores for a single player in a one operation, which should perform a bit better. Share Improve this answer Follow a...
a more interesting question: It’s not uncommon for systems to want to track when a document was created or when changes were made to a document, and it would certainly be a pain to have to fill in fields every time any part of the surrounding code touched or saved one of these guys...