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orderController.js 
const Order = require("../../../models/order");
function orderController() {
  return {
    store(req, res) {
      const { phone, address } = req.body;
      if (!phone || !address) {
        req.flash("error", "All fields are required");
        return res.redirect("/cart");
      }
      const order = new Order({
        customerId: req.user._id,
        items: req.session.cart.items,
        phone,
        address,
      });

      order
        .save()
        .then((result) => {
          req.flash("success", "Order placed successfully");
          return res.redirect("/");
        })
        .catch((err) => {
          req.flash("error", "something went wrong");
          return res.redirect("/cart");
        });
    },
    async index(req, res) {
      const orders = await Order.findOne({ customerId: req.user._id });
      console.log(orders);
    },
  };
}

module.exports = orderController;




web.js
const homeController = require("../app/http/controllers/homeController");
const authController = require("../app/http/controllers/authController");
const cartController = require("../app/http/controllers/customers/cartController");
const orderController = require("../app/http/controllers/customers/orderController");
const guest = require("../app/http/middlewares/guest");
function initRoutes(app) {
  app.get("/", homeController().index);
  app.get("/login", guest, authController().login);
  app.post("/login", authController().postLogin);
  app.get("/register", guest, authController().register);
  app.post("/register", authController().postRegister);
  app.post("/logout", authController().logout);
  app.get("/cart", cartController().index);
  app.post("/update-cart", cartController().update);
  //customer routes
  app.post("/orders", orderController().store);
  app.get("/customer/orders", orderController().index);
}

module.exports = initRoutes;




 orderController.js 
const Order = require("../../../models/order");
function orderController() {
  return {
    store(req, res) {
      const { phone, address } = req.body;
      if (!phone || !address) {
        req.flash("error", "All fields are required");
        return res.redirect("/cart");
      }
      const order = new Order({
        customerId: req.user._id,
        items: req.session.cart.items,
        phone,
        address,
      });

      order
        .save()
        .then((result) => {
          req.flash("success", "Order placed successfully");
          return res.redirect("/");
        })
        .catch((err) => {
          req.flash("error", "something went wrong");
          return res.redirect("/cart");
        });
    },
    async index(req, res) {
      const orders = await Order.findOne({ customerId: req.user._id });
      console.log(orders);
    },
  };
}

module.exports = orderController;
web.js
const homeController = require("../app/http/controllers/homeController");
const authController = require("../app/http/controllers/authController");
const cartController = require("../app/http/controllers/customers/cartController");
const orderController = require("../app/http/controllers/customers/orderController");
const guest = require("../app/http/middlewares/guest");
function initRoutes(app) {
  app.get("/", homeController().index);
  app.get("/login", guest, authController().login);
  app.post("/login", authController().postLogin);
  app.get("/register", guest, authController().register);
  app.post("/register", authController().postRegister);
  app.post("/logout", authController().logout);
  app.get("/cart", cartController().index);
  app.post("/update-cart", cartController().update);
  //customer routes
  app.post("/orders", orderController().store);
  app.get("/customer/orders", orderController().index);
}

module.exports = initRoutes;

order.js 
const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const orderSchema = new Schema(
  {
    customerId: {
      type: mongoose.Schema.Types.ObjectId,
      ref: "User",
      required: true,
    },
    items: { type: Object, required: true },
    phone: { type: String, required: true },
    address: { type: String, required: true },
    paymentType: { type: String, default: "COD" },
    status: { type: String, default: "order_placed" },
  },
  { timestamps: true }
);

module.exports = mongoose.model("Order", orderSchema);




server.js
require("dotenv").config();
const express = require("express");
const app = express();
const ejs = require("ejs");
const path = require("path");
const passport = require("passport");
const expressLayout = require("express-ejs-layouts");
const PORT = process.env.PORT || 3000;
const mongoose = require("mongoose");
const session = require("express-session");
const flash = require("express-flash");
const MongoDbStore = require("connect-mongo")(session);
 


const url = "mongodb://127.0.0.1/pizza";
mongoose.set("strictQuery", false);
mongoose.connect(url, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
});

const connection = mongoose.connection;
connection
  .once("open", () => {
    console.log("Database connected...");
  })
  .on("error", function (err) {
    console.log("connection failed");
  });

let mongoStore = new MongoDbStore({
  mongooseConnection: connection,
  collection: "sessions",
});

app.use(
  session({
    secret: process.env.COOKIE_SECRET,
    resave: false,
    saveUninitialized: false,
    store: mongoStore,
    cookie: { maxAge: 1000 * 15 },
  })
);
const passportInit = require("./app/config/passport");
passportInit(passport);
app.use(passport.initialize());
app.use(passport.session());

app.use(flash());
app.use(express.static("public"));
app.use(express.urlencoded({ extended: false }));
app.use(express.json());

app.use((req, res, next) => {
  res.locals.session = req.session;
  res.locals.user = req.user;
  next();
});

app.use(expressLayout);
app.set("views", path.join(__dirname, "/resources/views"));

app.set("view engine", "ejs");

require("./routes/web")(app);

app.listen(2000, () => {
  console.log("Listening on 8002");
});


user.js 
const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const userSchema = new Schema(
  {
    name: { type: String, required: true },
    email: { type: String, required: true, unique: true },
    password: { type: String, required: true },
    role: { type: String, default: "customer" },
  },
  { timestamps: true }
);

module.exports = mongoose.model("User", userSchema);


What I have tried:

I am getting the following error in the terminal :

const orders = await Order.findOne({ customerId: req.user._id }); ^

TypeError: Cannot read properties of undefined (reading '_id') at index (C:\Users\bhide\Desktop\best\pizza\app\http\controllers\customers\orderController.js:29:65) at Layer.handle [as handle_request] (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\layer.js:95:5) at next (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\route.js:144:13) at Route.dispatch (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\route.js:114:3) at Layer.handle [as handle_request] (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\layer.js:95:5) at C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\index.js:284:15 at Function.process_params (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\index.js:346:12) at next (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\index.js:280:10) at module.exports (C:\Users\bhide\Desktop\best\pizza\node_modules\express-ejs-layouts\lib\express-layouts.js:116:3) at Layer.handle [as handle_request] (C:\Users\bhide\Desktop\best\pizza\node_modules\express\lib\router\layer.js:95:5)
Posted
Updated 23-Jan-23 22:36pm
Comments
Richard MacCutchan 24-Jan-23 6:13am    
The problem is at line 29 of orderController.js. And the issue is simple, the variable reference req.user has not been initiaised, so it does not point to a valid user type. You will need to do some debugging to find out why that is so.

1 solution

The dot before the _id is probably causing the problem -
const orders = await Order.findOne({ customerId: req.user._id });


You are receiving the req.user detail which then should be concatenated to the id i.e. you have returneda user with name tan, he has an id of 25 -
req.user + _id
this then should read tan25 and not tan._25.

The error is pointing you the the problem, trust above will solve it.
 
Share this answer
 
Comments
tan25 24-Jan-23 5:41am    
this solution didn't work for me
const orders = await Order.find({ customerId: req.user + _id });

^

ReferenceError: _id is not defined
Richard MacCutchan 24-Jan-23 6:08am    
The issue is that req.user is null.
tan25 24-Jan-23 8:05am    
how can i correct this.
Richard MacCutchan 24-Jan-23 8:18am    
See my comment to your question.

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