我在mongo atlas 中有这个文档
_id: 5f8939cbedf74e363c37dd86,
firstname: "Person",
lastname: "Person lastname",
sex: "Masculino",
age: "20",
birthDay: 2020-10-07T00:00:00.000+00:00,
vaccines: Array
0:Object
dose: Array
_id: 5f8939cbedf74e363c37dd87
vaccine:5f7023ad96f7ed21e85be521
createdAt:2020-10-16T06:12:27.726+00:00
updatedAt:2020-10-16T06:12:27.726+00:00
1:Object
dose:Array
_id:5f893a9ca98e97188c93fea8
vaccine:5f70259796f7ed21e85be523
2:Object
dose:Array
_id:5f893acda98e97188c93fea9
vaccine:5f7023ad96f7ed21e85be521
这是我的猫鼬模式
const mySchema = new Schema({
firstname: {
type: String,
required: true,
},
lastname: {
type: String,
required: true,
},
sex: {
type: String,
required: true,
},
age: {
type: String,
required: true,
},
birthDay: {
type: Date,
required: true,
},
vaccines: [
{
type: new Schema(
{
vaccine: {
type: Schema.ObjectId,
ref: "Vaccine",
},
dose: Array,
},
{ timestamps: true }
),
},
],
});
每次我添加一个新人，疫苗数组都会得到一个带有时间戳的新对象，正如你所看到的，在我的js文件中，我使用以下代码：
const addPerson = (person) => {
const myPerson= new Model(person);
return myPerson.save();
};
然后，当我为同一个人添加新疫苗时，它没有得到时间戳，我使用以下代码：
const addPersonVaccine = async ({ params, body }) => {
if (!params) return Promise.reject("Invalid ID");
const vaccines = [body];
const foundPerson = await Model.updateOne(
{
_id: params,
},
{
$push: {
vaccines: vaccines,
},
}
);
return foundPerson;
};
这就是我体内的疫苗阵列：[ { vaccine: '5f72c909594ee82d107bf870', dose: 'Primera' } ]
问题是，我没有关于下一个时间戳的结果，正如你在我的mongo图集文档中看到的那样：
1:Object
dose:Array
_id:5f893a9ca98e97188c93fea8
vaccine:5f70259796f7ed21e85be523
2:Object
dose:Array
_id:5f893acda98e97188c93fea9
vaccine:5f7023ad96f7ed21e85be521
这是在子文档或子架构中实现时间戳的最佳方式吗？
我会感谢你的回答，thnks👏
您可以使用mongoose模式时间戳选项来内部模式
const mongoose = require("mongoose");
const forumSchema = new mongoose.Schema(
{
title: { type: String, required: true },
biddings: [
{
type: new mongoose.Schema(
{
biddingId: String,
biddingPoints: Number
},
{ timestamps: true }
)
}
]
},
{ timestamps: true }
);
const Forum = mongoose.model("Forum", forumSchema);
module.exports = Forum;
有关更多Mongoose模式的信息，请在嵌套文档上设置时间戳
const mySchema = new Schema({
firstname: {
type: String,
required: true,
},
lastname: {
type: String,
required: true,
},
sex: {
type: String,
required: true,
},
age: {
type: String,
required: true,
},
birthDay: {
type: Date,
required: true,
},
vaccines: [
{
type: new Schema(
{
vaccine: {
type: Schema.ObjectId,
ref: "Vaccine",
},
dose: Array,
},
{ timestamps: { createdAt: "created_at", updatedAt:
"updated_at" } }
),
},
],
},{ timestamps: { createdAt: "created_at", updatedAt:
"updated_at" } }
);
更新查询
testModel
.updateMany(
{ _id: _id },
{ $push: { vaccines: vaccines } },
{ multi: true }
)
.then((update) => {
res.send(update);
})
.catch((err) => {
res.send(err);
});