接下来,您需要在您的mongoose模型上应用findOrCreate插件: yourSchema.plugin(findOrCreate); 添加了插件后,您可以使用findOrCreate方法来执行查找或创建操作。以下是一个示例: yourModel.findOrCreate({name:'John'},function(err,result){if(err){console.error(err);}else{console.log(result);}}); ...
Or on individual schemas: // people.model.js const findOrCreate = require('find-or-create-mongoose'); const schema = new mongoose.Schema({ name: { type: String }, age: { type: Number } }); schema.plugin(findOrCreate); module.exports = mongoose.model('People', schema, 'people');...
那是mongoose 的链式方法吧,可以在ORM自己修改,一般都是在方法之中返回当前对象以实现链式调用。可以...
const Character = mongoose.model('Character', mongoose.Schema({ name: String, age: Number, rank: String}));await Character.create([ { name: 'Jean-Luc Picard', age: 59, rank: 'Captain' }, { name: 'William Riker', age: 29, rank: 'Commander' }, { name: 'Deanna Troi', ...
mongoose.model('users').db.db.command({ "geoNear": users, "near": [ <latitude>, <longitude> ], "spherical": true, "distanceMultiplier": 6378.1, // multiplier for kilometres "maxDistance": 100 / 6378.1, // every user within 100 km "query": { } (I used db.command since from wh...
Mongoose是一个Node.js的MongoDB对象建模工具,它提供了一种简单而直观的方式来操作MongoDB数据库。在Mongoose中,可以使用`find`、`sort`和`$and`等方法来...
在Mongoose中,Model.find()函数是查询数据库的主要工具。 第一个参数Model.find()是一个filter目的。 MongoDB 将搜索所有匹配的文档filter,如果您传递一个空过滤器,MongoDB 将返回所有文档。 在本教程中,您将了解如何在 Mongoose 中通过构建filter使用MongoDB 查询运算符。
TypeORM返回空数组在codeigniter select查询中获取空数组在空数组上使用$all查询MongoDB不返回结果在Firebase Firestore上查询文档时获取空查询在Firebase中查询数组的映射时,数组为空在Hibernate中从@查询中获取空结果从json文件传递mongodb查询以在python中执行如何在未找到结果时从Mongoose Find查询返回自定义消息而不是空...
Try to use sinon-mongoose https://github.com/underscopeio/sinon-mongoose Here is an example: require('sinon'); require('sinon-mongoose'); sinon.mock(Ticket) .expects('find') .chain('populate').withArgs(/* args */) .chain('sort').withArgs('create') .chain('lean') .chain('exec'...
This is a Mongoose plugin that allows your Mongoose to support lookup on reference fields. Reference field is like this: { type: MongooseSchema.Types.ObjectId, ref: 'XXX', } Its principle is to parse your find request. When it finds that you want to filter the value of the reference fi...