const nestedSchema = new Schema({ _id: false, // <-- disable _id name: String }); Instance methods Instances of Models are documents. Documents have many of their own built-in instance methods. We may also define our own custom document instance methods....
当我进行查询时,我会得到:无法填充路径statesPersons.activeWork.referenceId,因为它不在架构中。请将strictPopulate选项设置为false以覆盖。我不知道填充的格式是否正确,或者问题是否出在模式中, mongodb共1条答案 1#zzzyeukh 2022-12-26 如果要填充该值,应将statesPersonsSchema中的activeWork属性声明更改为引用: ...
情况是这样的,一个Node.js+MongoDB的项目中,使用了mongoose操作数据库,在使用populate()方法进行类似表关联操作的时候,报错如下: Schema hasn't been registered for model "..." 数据库连接和业务逻辑排了了一整遍,没有问题,但只要使用populate()方法就报错。 老孙翻遍了Google上搜出来的所有相关问题的技术文档...
(require('mongoose-autopopulate'))`.// You only need to add mongoose-autopopulate to top-level schemas.constnestedSchema=mongoose.Schema({child:{type:Number,ref:'Child',autopopulate:true}});consttopSchema=mongoose.Schema({nested:nestedSchema});topSchema.plugin(require('mongoose-autopopulate'))...
{name:String,binary:Buffer,living:Boolean,updated:{type:Date,default:Date.now},age:{type:Number,min:18,max:65,required:true},mixed:Schema.Types.Mixed,_someId:Schema.Types.ObjectId,array:[],ofString:[String],// You can also have an array of each of the other types too.nested:{stuff:...
Q. I'm populating a nested property under an array like the below code: newSchema({arr: [{child: {ref:'OtherModel',type:Schema.Types.ObjectId} }] }); .populate({ path: 'arr.child', options: { sort: 'name' } })won't sort byarr.child.name?
我们可以在需要的时候使用populate()方法获取某些信息。 Mixed:任意schema类型。 []:数组对象。你可以对该对象执行JavaScript数组操作(push, pop, unshift等)。上面的实例展示了,没有指定数组对象类型的数组,和指定为String的数组。你可以指定任意类型的数组。 这段代码也展示来定义属性的两种方法: 属性名和属性类型...
npm i mongoose-embed-populate Setup // Including the library will add 'subPopulate' helper for query const subReferencesPopulate = require('mongoose-embed-populate'); const TestSchema = new mongoose.Schema({}); // Applying as plugin on the schema will provide 'subPopulate' method on the mod...
check that schema type is an object when setting isunderneathdocarray #10361 [ vmo-khanus ]( https://github.com/vmo-khanus ) 4 * fix(document): avoid infinite recursion when setting single nested subdoc to array #10351 5 * fix(populate): allow populating nested path in schema using `...
1.4 Schema.Types NodeJS中的基本数据类型都属于Schema.Type,另外Mongoose还定义了自己的类型 代码语言:javascript 复制 //举例:varExampleSchema=newSchema({name:String,binary:Buffer,living:Boolean,updated:Date,age:Number,mixed:Schema.Types.Mixed,//该混合类型等同于nested_id:Schema.Types.ObjectId,//主键_fk...