Question

我能够保存新列表并获取所有数据，但我如何在数组下面更新。我需要用forEach更新每个对象，还是用新对象替换它？

模式

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
 
var TypeOfAccountSchema = new Schema({
  name: {
    type: String,
    required: true,
    unique: true,
  },
});
 
module.exports = mongoose.model('typeofaccount', TypeOfAccountSchema);

[
    {
        "_id": "5efc26348150a306b017090e",
        "name": "Saving Account",
        "__v": 0
    },
    {
        "_id": "5efc26348150a306b017090f",
        "name": "Current Account",
        "__v": 0
    },
    {
        "_id": "5efc26678150a306b0170912",
        "name": "Saving1 Account",
        "__v": 0
    }
]

Answer 1

您可以使用以下逻辑，而不是使用forEach。

let p = [];
for (let i = 0; i < req.body.length; i++) {
    let { _id, ...rest } = req.body[i];
    let r = Typeofaccount.update({_id}, {$set: {...rest}})
    p.push(r);
}
Promise.all(p)
.then(data => {
    res.json({status: 200, message: "Updated"});
})
.catch(err => {
    return res.status(500).json({message : err.message})
})

更新猫鼬中的数组

1 个答案: