如何更新和推送猫鼬

Question

我从Here 获取了这个模式

var mongoose = require('mongoose');

var ContactSchema = module.exports = new mongoose.Schema({
  name: {
    type: String,
    required: true
  },
  phone: {
    type: Number,
    required: true,
    index: {unique: true}
  },
  messageCount: {
    type: Number,
    required: true,
    default:0
  },
  messages: [
  {
    title: {type: String, required: true},
    msg: {type: String, required: true}
  }]
}, {
    collection: 'contacts',
    safe: true
});

我可以通过这样做来推送消息

let result = await Contact.findByIdAndUpdate(
        id,
        {$push: {"messages": {title: title, msg: msg}}},
        {new : true})

但我也想在单步中增加 messageCount

messageCount can be random also but point is to push and update

我期待 message 和 messageCount 使用任何 mongoose 函数在单个查询中更新

Answer 1

在查看This Post 并尝试解决我的疑问之后

let result = await Contact.findByIdAndUpdate(
        id,
        {
           messageCount:10
           $push: {"messages": {title: title, msg: msg}}
        },
        {new : true})