Mongoose Query.prototype.model API

The Mongoose Query API.prototype.model property of the Mongoose API is used on the Query objects. It allows us to verify the model with which the current query is associated with. Let us understand model property using an example.

Syntax:

query.model;

Parameters: This property does not accept any parameter.

Return Value: This property returns the model name on which the query is operating.

Setting up Node.js application:

Step 1: Create a Node.js application using the following command:

npm init

Step 2: After creating the NodeJS application, Install the required module using the following command:

npm install mongoose

Project Structure: The project structure will look like this:

Example 1: In this example, we are illustrating the functionality of model property, by accessing it on the query object.

Filename: app.js

Javascript

// Require mongoose module
const mongoose = require("mongoose");

// Set Up the Database connection
const URI = "mongodb://localhost:27017/geeksforgeeks";

const connectionObject = mongoose.createConnection(URI, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
});

const Customer = connectionObject.model(
    "Customer",
    new mongoose.Schema({
        name: String,
        address: String,
        orderNumber: Number,
    })
);

const query = Customer.find();
const res = query.model
console.log(res);

Step to run the program: To run the application execute the below command from the root directory of the project:

node app.js

Output:

Model { Customer }

Example 2: In this example, we are illustrating the functionality of model property, by accessing it on the query object. At the end, we are comparing the value return by model property with the Customer model.

Filename: app.js

Javascript

// Require mongoose module
const mongoose = require("mongoose");

// Set Up the Database connection
const URI = "mongodb://localhost:27017/geeksforgeeks";

const connectionObject = mongoose.createConnection(URI, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
});

const Customer = connectionObject.model(
    "Customer",
    new mongoose.Schema({
        name: String,
        address: String,
        orderNumber: Number,
    })
);

const query = Customer.find();
const output = query.model === Customer;
console.log(output);

Step to run the program: To run the application execute the below command from the root directory of the project:

node app.js

Output:

true

Reference: https://mongoosejs.com/docs/api/query.html#query_Query-model