node.js - 在 Mongoose 中迭代集合的最简单方法

Question

我希望能够遍历集合，以便能够遍历所有对象。这是我的架构:

'use strict';

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const bcrypt = require('bcrypt');
const moment = require('moment');

//Create user schema 
const UserSchema = new Schema ({
    username: { type: String, unique:true },
    password: {type:String},
    phonenumber: Number,
});

//**************PASSWORD STUFF *******************************
//Hash the password so it becomes encrypted.
UserSchema.methods.generateHash = function(password){
    return bcrypt.hashSync(password,bcrypt.genSaltSync(9));
}

UserSchema.methods.validPassword = function(password){
    return bcrypt.compareSync(password,this.password);
}
//************************************************************

//Schema model.
const User = mongoose.model('user-dodger', UserSchema);

module.exports = User;

Answer 1

Mongoose 现在有 async iterators 。这些的优点是在开始迭代之前不需要加载集合中的所有文档:

for await (const doc of Model.find()) {
  doc.name = "..."
  await doc.save();
}

这是一个great blog post更多详细信息。