我在 Mongo 中有一个模式,如下所示:
({
title: String,
genre: String,
publishDate: Date,
index:Number,
requirementInformation:{
requirementInformationStatus:{
type: String,
required: true
},
requirement: [{ requirementId: {
type: Number
},requirementState: {
type: String
}}]
}
})
我想在 Node.js 中自动增加字段 requirementsId。我尝试使用 mongoose-auto-increment 包,但无法为嵌套对象创建自动增量。需要一些帮助。我的代码如下:
const mongoose = require('mongoose')
const Schema= mongoose.Schema;
var autoIncrement = require('mongoose-auto-increment');
var connection = mongoose.createConnection("mongodb://localhost/Test");
autoIncrement.initialize(connection);
var bookSchema = new Schema({
title: String,
genre: String,
publishDate: Date,
index:Number,
requirementInformation:{
requirementInformationStatus:{
type: String,
required: true
},
requirement: [{ requirementId: {
type: Number
},requirementState: {
type: String
}}]
}
});
bookSchema.plugin(autoIncrement.plugin, {model:'Book',field: 'requirementInformation.requirement.requirementId'});
//authorSchema.plugin(autoIncrement.plugin, 'Author');
var Book = connection.model("Book", bookSchema);
const me = new Book({
title: 'MyBook',
requirementInformation:{requirementInformationStatus:'True',requirement:[{requirementState:"hj"}]}
})
me.save().then(() => {
console.log(me)
}).catch((error) => { console.log(error) })
如何访问 requirementsId 字段?