Mongoose一次存储子文档的动态数组

const mongoose = require('mongoose');

// 定义子文档模型
const childSchema = new mongoose.Schema({
  name: String,
  age: Number
});

// 定义父文档模型
const parentSchema = new mongoose.Schema({
  children: [childSchema]
});

// 创建父文档模型
const Parent = mongoose.model('Parent', parentSchema);

const parent = new Parent();
parent.children.push({ name: 'Alice', age: 10 });
parent.children.push({ name: 'Bob', age: 12 });
parent.save();

Parent.findOne({ _id: parentId }, (err, parent) => {
  if (err) {
    // 错误处理
  } else {
    const child = parent.children.id(childId);
    child.name = 'Charlie';
    parent.save();
  }
});

Parent.findOne({ _id: parentId }, (err, parent) => {
  if (err) {
    // 错误处理
  } else {
    parent.children.id(childId).remove();
    parent.save();
  }
});