testSchema);await Test.create({name: 'Test Testerson'});await Test.create({name: 'Test Testerson'});await Test.create({name: 'Test Testerson'});await Test.create({name: 'Masteringjs'});await Test.create({name: 'MeanIT'});await Test.deleteMany({name: 'Test Testerson'}...
六、populate实现关联查询 //注意使用populate需要用到的model// ArticleModel.find({}).populate("cid").exec(function(err,data){// console.log(data);// })ArticleModel.find({}).populate("cid").populate("author_id").exec(function(err, data) {console.log(data); }) @TOC...
Site.deleteMany({ userUID: uid, id: { $in: [10, 2, 3, 5]}}, function(err) {}) 此处的文档: https ://docs.mongodb.com/manual/reference/operator/query/in/ 原文由 Kevin 发布,翻译遵循 CC BY-SA 3.0 许可协议 有用 回复 社区
await Person.deleteMany({ name: 'Ian Fleming' }); const story = await Story.findOne({ title: 'Casino Royale' }).populate('author'); story.author; // `null` If you have an array of authors in your storySchema, populate() will give you an empty array instead.const storySchema = ...
deleteOne() deleteMany() findOneAndDelete() findOneAndReplace() findOneAndUpdate() updateOne() updateMany() Defaults to the schema's writeConcern.j option Example: await mongoose.model('Person').deleteOne({ name: 'Ned Stark' }).j(true);Query...
constres =awaitTestModel.deleteMany({});// In Mongoose 6: `{ acknowledged: true, deletedCount: 2 }`// In Mongoose 5: `{ n: 2, ok: 1, deletedCount: 2 }`res; res.deletedCount;// Number of documents that were deleted. Replaces `res.n` ...
/* User.deleteMany({ name: "May" }, function (err) { if (err) console.log(err); }); */ 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. ...
constmySchema =newSchema({field:Number});constMyModel= mongoose.model('Test', mySchema);// Change this:awaitMyModel.remove(filter);// To this:awaitMyModel.deleteOne(filter);// Or this, if you want to delete multiple:awaitMyModel.deleteMany(filter);// For documents, change this:awaitdoc...
, `deletemany()` #10122 125 * docs(mongoose): make `usecreateindex` always `false` in docs #10033 126 * docs(schema): fix incorrect links from schema api docs #10111 127 128 5.12.4 / 2021-04-15 129 === 130 * fix: upgrade mongodb driver -> 3.6.6 #10079 131 * fix: store...
创建文档 const course = new Course({ name: 'node.js基础', author: '一客', isPublished: true }); //将文档插入数据库中...then(result => console.log(result)) 删除文档 findOneAndDelete 单个 如果更新条件匹配多个默认只更新第一个 deleteMany 多个 第一个条件为空...({ title: { type: String...