Getting this error when adding a product to mongoDB - mongodb

Question

This is the file containing the Schema
let mongoose = require('mongoose');
let Schema = mongoose.Schema;
const productSchema = new Schema({
_id: {
type: Number,
required: true
},
product_name: {
type: String,
required: true
},
price: {
type: String,
required: true
},
quantity: {
type: Number,
required: true
},
product_collection: {
type: String,
required: true,
enum: ['Nike' , 'Addidas']
},
product_image_url: {
type: String,
required: true
},
product_type: [
{
color: {
type: String,
required: true,
}
},
{
size: {
type: Number,
required: true,
enum: ['40', '41' , '42']
}
}
]
})
const Product = mongoose.model('Product' , productSchema);
module.exports = Product;
This is the seeds file where i want to create a product
//Require Models
const mongoose = require('mongoose');
//Require Models
const Product = require('./models/product');
//Connecting to DB server
mongoose.connect('mongodb://localhost:27017/ecom', {
useNewUrlParser: true,
useUnifiedTopology: true,
})
.then(() => {
console.log('DATABASE CONNECTED')
})
.catch(err => {
console.log('SOMETHING WENT WRONG WITH MONGO')
console.log(err)
})
const p = new Product({
_id: 1,
product_name: 'Nike HyperVenom',
price: 150,
quantity: 30,
product_collection: 'Nike',
product_image_url: 'zzzzz',
product_type: [
{
color: 'red'
},
{
size: [41 , 42]
}
]
})
p.save().then(p => {
console.log(p)
})
.catch(e => {
console.log(e)
})
This is the error that is displayed in console.
Error: Product validation failed: product_type.1.color: Path `color` is required
errors: {
'product_type.1.color': ValidatorError: Path `color` is required.
at validate (C:\Users\hadiz\Desktop\Business\portfolioprojects\ecommerce
\node_modules\mongoose\lib\schematype.js:1277:13)
at C:\Users\hadiz\Desktop\Business\portfolioprojects\ecommerce\node_modu
les\mongoose\lib\schematype.js:1260:7
at Array.forEach (<anonymous>)
at SchemaString.SchemaType.doValidate (C:\Users\hadiz\Desktop\Business\p
ortfolioprojects\ecommerce\node_modules\mongoose\lib\schematype.js:1210:14)
at C:\Users\hadiz\Desktop\Business\portfolioprojects\ecommerce\node_modu
les\mongoose\lib\document.js:2690:18
at processTicksAndRejections (node:internal/process/task_queues:76:11) {
properties: [Object],
kind: 'required',
path: 'color',
value: undefined,
reason: undefined,
[Symbol(mongoose:validatorError)]: true
}
},
_message: 'Product validation failed'
}
Any idea how to fix this , I am a bit of a beginner in mongoose and mongoDB. I think the problem is with the product_type section , am i giving them a value in the right way in the seeds file ?

Answer 1

The product_type object in your schema indicates that every object inside it must have a color key-value pair. The error was about your second object in product_type (index 1) does not have the color key. You should change product_type from an array to an object. I.E.
product_type: {
color: {
type: String,
required: true,
},
size: [{
type: Number,
required: true,
enum: [40, 41, 42]
}],
}
And your input should become:
product_type: {
color: "red",
size: [41, 42],
}