我在这里看到了这个问题的许多答案，但我仍然不明白(可能是因为他们使用了更"复杂"的例子)...
let customerModel = new Schema({
firstName: String,
lastName: String,
company: String,
contactInfo: {
tel: [Number],
email: [String],
address: {
city: String,
street: String,
houseNumber: String
}
}
});
tel和email可能是一个array.
我怎样才能做到这一点？
const mongoose = require("mongoose");
// Make connection
// https://mongoosejs.com/docs/connections.html#error-handling
mongoose.connect("mongodb://localhost:27017/test", {
useNewUrlParser: true,
useUnifiedTopology: true,
});
// Define schema
// https://mongoosejs.com/docs/models.html#compiling
const AddressSchema = mongoose.Schema({
city: String,
street: String,
houseNumber: String,
});
const ContactInfoSchema = mongoose.Schema({
tel: [Number],
email: [String],
address: {
type: AddressSchema,
required: true,
},
});
const CustomerSchema = mongoose.Schema({
firstName: String,
lastName: String,
company: String,
connectInfo: ContactInfoSchema,
});
const CustomerModel = mongoose.model("Customer", CustomerSchema);
// Create a record
// https://mongoosejs.com/docs/models.html#constructing-documents
const customer = new CustomerModel({
firstName: "Ashish",
lastName: "Suthar",
company: "BitOrbits",
connectInfo: {
tel: [8154080079, 6354492692],
email: ["asissuthar@gmail.com", "contact.bitorbits@gmail.com"],
},
});
// Insert customer object
// https://mongoosejs.com/docs/api.html#model_Model-save
customer.save((err, cust) => {
if (err) return console.error(err);
// This will print inserted record from database
// console.log(cust);
});
// Display any data from CustomerModel
// https://mongoosejs.com/docs/api.html#model_Model.findOne
CustomerModel.findOne({ firstName: "Ashish" }, (err, cust) => {
if (err) return console.error(err);
// To print stored data
console.log(cust.connectInfo.tel[0]); // output 8154080079
});
// Update inner record
// https://mongoosejs.com/docs/api.html#model_Model.update
CustomerModel.updateOne(
{ firstName: "Ashish" },
{
$set: {
"connectInfo.tel.0": 8154099999,
},
}
);