------------------------------
Here is Order Controller
-----------------------------
import nc from "next-connect";
import db from "../../../utils/db";
import Order from "../../../models/OrderModel";
import { isAuth } from "../../../utils/auth";
const handler = nc();
handler.use(isAuth);
handler.get(async (req, res) => {
try {
await db.connect();
const order = await Order.findById(req.body.order).populate({
path: "product",
model: "Product",
});
await db.disconnect();
res.send(order);
} catch (err) {
console.log(err);
}
});
export default handler;
--------------------------------------------------------------
Here is Order Schema
--------------------------------------------------------------
import mongoose from "mongoose";
const orderSchema = new mongoose.Schema(
{
product: [
{
type: mongoose.Schema.Types.ObjectId,
ref: "Product",
required: true,
},
],
user: {
type: mongoose.Schema.Types.ObjectId,
ref: "User",
required: true,
}
},
{ timestamps: true }
);
const Order = mongoose.models.Order || mongoose.model("Order", orderSchema);
export default Order;
----------------------------
Here is Product Schema
----------------------------
import mongoose from "mongoose";
const productSchema = new mongoose.Schema(
{
name: {
type: String,
required: true,
},
description: {
type: String,
required: true,
},
price: {
type: Number,
required: true,
},
category: {
type: String,
required: true,
},
period: {
type: String,
required: true,
},
features: [{ type: String, required: true }],
},
{ timestamps: true }
);
const Product =
mongoose.models.Product || mongoose.model("Product", productSchema);
export default Product;
--------------------
I am getting this error: "MissingSchemaError: Schema hasn't been registered for model "Product".
Use mongoose.model(name, schema)"
There are also some orders including product ObjectId and I am trying to get the data using populate on the POSTMAN but getting this error.
I've really searched much before posting this but I've didn't solve the error
Related
I have a database in MongoDB with some data, I try to get them with the .find() method, but it returns an empty array instead of the array with the data. Why does this happen and how do I fix it? I'm using ES6
Controller:
import {Game} from '../models/Game.js';
export const getAll = async (req, res) => {
try {
let games = await Game.find();
console.log(games) //returns = []
res.status(200).json(games);
} catch(error) {
console.log('Hubo un error', error)
}
};
Model:
import mongoose from "mongoose";
const { Schema, model } = mongoose;
const GameSchema = new Schema({
name: {
type: String,
required: true
},
price: {
type: Number,
required: true
},
description: {
type: String,
required: true
},
genre: {
type: String,
required: true
},
cover: {
type: String,
required: true
},
platform: {
type: String,
required: true
},
});
export const Game = model("Game", GameSchema);
Im having issues populating my mongoDB collection with another collection based off the _id. It Keeps returning an empty object with no errors or anything?
Property Schema
const PropertySchema = new Schema({
landlord: {
type: Schema.Types.ObjectId,
ref: "Landlord",
required: true,
},
...
});
Landlord Schema
import { Schema as _Schema, model } from "mongoose";
const Schema = _Schema;
const LandlordSchema = new Schema({
fname: {
type: String,
required: true,
},
lname: {
type: String,
required: true,
},
phone: {
type: Number,
required: true,
},
email: {
type: String,
required: true,
},
company: {
type: String,
},
});
const Landlord = (module.exports = model("Landlord", LandlordSchema));
export function get(callback, limit) {
Landlord.find(callback).limit(limit);
}
Property Controller
exports.readProperty = async (req, res) => {
await Property.find({ _id: req.params.propertyId })
.populate({
path: "Landlord",
select: "fname lname email phone company",
model: "Landlord",
strictPopulate: false,
})
.then(function (err, property) {
if (err) return res.send(err);
res.json(property);
});
};
mongodb Property Collection
Mongodb Landlord Collection
When running the get call from postman it returns:
I fixed this issue by selecting the field: landlord not Landlord
How to fetch data from multiple collections in MongoDB by using a common field and sending data (in those fetched collections) using one response?
Employee Scheema:
const mongoose = require("mongoose");
const employeeSchema = new mongoose.Schema(
{
profilePic: {
type: String,
},
employeeID: {
type: String,
required: true,
},
employeeFirstName: {
type: String,
required: true,
},
employeeLastName: {
type: String,
required: true,
},
birthday: {
type: String,
},
streetNo: {
type: String,
},
city: {
type: String,
},
phoneNumber: {
type: String,
},
jobRole: {
type: String,
required: true,
},
NIC: {
type: String,
required: true,
unique: true,
},
companyEmail: {
type: String,
required: true,
unique: true,
},
status: {
type: String,
required: true,
},
resignDate: {
type: String,
},
jobType: {
type: String,
required: true,
},
candidateID: {
type: String,
required: true,
},
teamID: {
type: String,
},
lastSeen: {
type: String,
},
token: {
type: String,
},
},
{ timestamps: true }
);
module.exports = mongoose.model("employee", employeeSchema);
Acadamic Qualification Scheema:
const mongoose = require("mongoose");
const academicQualificaationSchema = new mongoose.Schema(
{
employeeID: {
type: String,
required: true,
},
ordinaryLevelResult: {
type: Array,
required: true,
},
advancedLevelResults: {
type: Array,
required: true,
},
achievements: {
type: Array,
required: true,
},
},
{ timestamps: true }
);
module.exports = mongoose.model(
"academicQualification",
academicQualificaationSchema
);
Professional Qualification Scheema:
const mongoose = require("mongoose");
const proffesionalQualificaationSchema = new mongoose.Schema(
{
employeeID: {
type: String,
required: true,
},
degree: {
type: Array,
required: true,
},
language: {
type: Array,
required: true,
},
course: {
type: Array,
required: true,
},
},
{ timestamps: true }
);
module.exports = mongoose.model(
"proffesionalQualification",
proffesionalQualificaationSchema
);
Controller:
exports.viewEmployees = async (req, res) => {
try {
let accQuali, profQuali;
const employees = await employeeSchema.find();
accQuali = await academicQualificaationSchema.find();
profQuali = await ProffesionalQualificationSchema.find();
if (employees || accQuali || profQuali) {
return res.status(200).json({ data: { employees, profQuali, accQuali } });
} else {
return res.status(404).json({ message: message });
}
} catch (err) {
return res.status(404).json({ err: err.message });
}
};
This controller is working properly and sends all data in 3 collections with the use of one response. But, I am comfortable if I will be able to Fetch data separately for each employee.
If you want to get the data from the three collections for specific employee or employees, you can use an aggregation pipeline with a $lookup stage, as suggested by #1sina1. For example:
db.employee.aggregate([
{
$match: {"employeeID": "IDA"}
},
{
$lookup: {
from: "academicQualification",
localField: "employeeID",
foreignField: "employeeID",
as: "academicQualification"
}
},
{
$lookup: {
from: "proffesionalQualification",
localField: "employeeID",
foreignField: "employeeID",
as: "proffesionalQualification"
}
}
])
As you can see on the playground
So Im building a simple application with the MEARN stack.
The problem is that i want to have the user's information (name,email, etc...) to be put in the 'user' property in the product , and it's not working (Postman request return 500 status Server error) , i don't know what i'm doing wrong , thanks in advance! my code snippets :
My User Model :
const mongoose = require('mongoose')
const UserSchema = mongoose.Schema({
name : {
type: String,
required: true
},
email : {
type: String,
required: true,
unique: true
},
password : {
type: String,
required: true
},
date : {
type: Date,
default: Date.now
},
})
module.exports = mongoose.model('user',UserSchema)
my Product Model :
const mongoose = require('mongoose')
const ProductSchema = mongoose.Schema({
user:{
type: mongoose.Schema.Types.ObjectId,
ref: 'users'
},
name : {
type: String,
required: true
},
description : {
type: String,
required: true
},
quantity : {
type: Number,
required: true
},
price : {
type: Number,
required: true
},
date : {
type: Date,
default: Date.now
},
})
module.exports = mongoose.model('product',ProductSchema)
and my request :
router.get('/:id', async (req,res) => {
try {
const product = await Product.findById(req.params.id).populate('user')
res.json(product)
} catch (err) {
res.status(500).send('Server Error')
}
})
Your ref value needs to match the name of the model user references. So you need to change it to:
user:{
type: mongoose.Schema.Types.ObjectId,
ref: 'user'
},
You have to specify the path:populate({path:'user'}) Try :
router.get('/:id', async (req,res) => {
try {
const product = await Product.findById(req.params.id).populate({path:'user'})
res.json(product)
} catch (err) {
res.status(500).send('Server Error')
}
})
I have a model like this
const Schema = mongoose.Schema
const fileSchema = mongoose.Schema({
ownerId: { type: Schema.Types.ObjectId },
fileTypeId: { type: Schema.Types.ObjectId },
name: { type: String },
data: { type: Schema.Types.Mixed },
fileSize: { type: Number },
isHashInBlockchain: { type: Boolean },
createdAt: { type: Date, default: Date.now },
updatedAt: { type: Date, default: Date.now }
})
fileSchema.virtual('file', {
ref: 'filetype',
localField: 'fileTypeId',
foreignField: '_id'
})
fileSchema.set('toObject', { virtuals: true })
fileSchema.set('toJSON', { virtuals: true })
module.exports = mongoose.model('useruploadedfiles', fileSchema)
I am referring filetype collection to this model
But when I run the following query
await File.find(query).populate({ path: 'file' }).select('_id name createdAt updatedAt').sort({ createdAt: -1 }).skip(limit * (pageNumber - 1)).limit(limit)
I am getting the following error
Schema hasn't been registered for model "filetype"
You have to import your model in your root app file.
model.js
const UserSchema = new mongoose.Schema({
email: {
type: String,
unique: true,
trim: true,
},
name: {
type: String,
required: "Please supply a name",
trim: true
},
});
module.exports = mongoose.model("User", UserSchema);
app.js
mongoose.connect(process.env.DATABASE);
mongoose.Promise = global.Promise; // Tell Mongoose to use ES6 promises
mongoose.connection.on('error', (err) => {
console.error(`🙅 🚫 🙅 🚫 🙅 🚫 🙅 🚫 → ${err.message}`);
});
// READY?! Let's go!
require('./models/User')
router.js
const User = mongoose.model("User");
const getUsers = async (req, res) => res.json(await User.find({}));
app.get('/users', getUsers);