I have a practice problem on mongoose.
I have two models, let's call them product and support.
I need to create a third model which is the result of a mathematical calculation between some fields of the first two models (product and support).
However, I don't want this third model to be saved in the database, unless the user wants it.
I would like to have some advice on the best way to do it.
Thanks in advance
as you can see I have two models (product and support) and a third model (calculation) which is the result of a calculation between the first two models.
const productSchema = new mongoose.Schema({
diametre : {
type: Number,
required: true
},
type: {
type: String,
enum : ['metal', 'wood']
},
weight : {
type: Number,
required: true
},
length: {
type: Number,
required: true
},
createdAt: {
type: Date,
default: Date.now()
}
})
const supportSchema = new mongoose.Schema({
reference: {
type: String,
required: true
},
type: {
type: String,
required: true
},
material: {
type: String,
enum : ['wood', 'metal']
},
internalDiameter : {
type: Number,
required: true
},
externalDiameter : {
type: Number,
required: true
},
internalWidth : {
type: Number,
required: true
},
externalWidth : {
type: Number,
required: true
},
createdAt: {
type: Date,
default: Date.now()
}
})
const calculSchema = new mongoose.Schema({
product: {
type: mongoose.Schema.ObjectId,
ref: 'Product',
required: true
},
support: {
type: mongoose.Schema.ObjectId,
ref: 'Support',
required: true
},
lengthOnSupport:{
type: Number,
required: true
},
numberOfSupport: {
type: Number,
required: true
},
createdAt: {
type : Date,
default : Date.now()
}
})
Related
I need a code in Express.Js and Mongodb where I can change an exact string inside an object through the id of the item, I need to change the string "colorSelected" to a new value, changing only what I put in the body, in my previous failed attempts every change I made would change the entire object, I don't want that, thank you in advance.
Router Cart.js
//update color cart
router.patch("/cart/:id", Auth, async (req, res) => {
});
Model Cart.js
const mongoose = require('mongoose')
const ObjectID = mongoose.Schema.Types.ObjectId
const cartSchema = new mongoose.Schema({
owner : {
type: ObjectID,
required: true,
ref: 'User'
},
items: [{
itemId: {
type: ObjectID,
ref: 'Item',
required: true
},
img: String,
name: String,
colorSelected: String,
colors: Array,
stock: Number,
quantity: {
type: Number,
required: true,
min: 1,
default: 1
},
price: Number
}],
bill: {
type: Number,
required: true,
default: 0
}
}, {
timestamps: true
})
const Cart = mongoose.model('Cart', cartSchema)
module.exports = Cart
Model Item.js
const mongoose = require('mongoose')
const ObjectID = mongoose.Schema.Types.ObjectId
const reviewSchema = mongoose.Schema(
{
name: { type: String, required: true },
rating: { type: Number, required: true },
comment: { type: String, required: true },
user: {
type: ObjectID,
required: true,
ref: 'User'
},
},
{
timestamps: true,
}
)
const itemSchema = new mongoose.Schema({
images: [{
name: {
type: String,
required: true
},
src: {
type: String,
required: true
},
color: {
type: String,
required: true
},
}],
owner : {
type: ObjectID,
required: true,
ref: 'User'
},
name: {
type: String,
required: true,
trim: true
},
description: {
type: String,
required: true
},
category: {
type: Number,
required: true
},
price: {
type: Number,
required: true
},
stock: {
type: Number,
required: true
},
visibility: {
type: Boolean,
required: true
},
reviews: [reviewSchema],
rating: {
type: Number,
required: true,
default: 0,
},
numReviews: {
type: Number,
required: true,
default: 0,
}
}, {
timestamps: true
})
const Item = mongoose.model('Item', itemSchema)
module.exports = Item
Here is my query
const {a_id, b_id, rate} = req.body
const rate = await Rate.create({
a_id,// In my model schema of Rate I've referenced it to another table which is `user`
b_id,// In my model schema of Rate I've referenced it to another table which is `class`
rate// this is the random rate I wanna pass into body
})
Now I want to rate on the basis of a_id and b_id, How can i pass a_id and b_id
This is my Rate Schema:
a_id: {
type: mongoose.Schema.Types.ObjectId,
ref: "user",
},
b_id: {
type: mongoose.Schema.Types.ObjectId,
ref: "class",
},
rate: {
type: Number,
required:true
},
Here is the class schema
name: {
type: String,
required: true
},
email: {
type: String,
required: true
},
rate: {
type: Number,
required: true
},
This is user Schema :
email: {
type: String,
required: true,
},
username: {
type: String,
required: true
},
role:
{
type: mongoose.Schema.Types.ObjectId,
ref: "Role",
},
This is role Schema.
role: {
type: String,
enum: ['Super Admin', 'Jury', 'Selection'],
required: true
}
Hi I want to implement this snippet of my class diagram using mongoose.
Here is my logic model in detail:
Here is the definition of my Mother model:
const mongoose = require('mongoose')
const motherSchema = mongoose.Schema({
cniMother: { type: Number, required: true },
name: { type: String, required: true },
surname: { type: String, required: true },
birthDay: { type: Date, required: true },
birthPlace: { type: String, required: true },
address: { type: String, required: true },
phone: { type: Number, required: true },
occupation: { type: String, required: true },
});
module.exports = mongoose.model('Mother', motherSchema);
Here is the definition of my Declared model:
const mongoose = require('mongoose')
const declaredSchema = mongoose.Schema({
name: { type: String, required: true },
surname: { type: String, required: true },
father: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Father',
//required: true,
},
mother: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Mother',
//required: true,
},
birthDay: { type: Date, required: true },
birthPlace: { type: String, required: true },
gender: { type: String, required: true },
nationality: { type: String, required: true }
});
module.exports = mongoose.model('Declared', declaredSchema);
I want to retrieve the name of the father and the mother corresponding to the declared.
Can anyone help me please?
Here is my orders schema with Javascript mongoose;
import mongoose from 'mongoose';
const orderSchema = new mongoose.Schema(
{
orderItems: [
{
name: { type: String, required: true },
qty: { type: Number, required: true },
image: { type: String, required: true },
price: { type: Number, required: true },
product: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Product',
required: true,
},
},
],
shippingAddress: {
fullName: { type: String, required: true },
address: { type: String, required: true },
city: { type: String, required: true },
postalCode: { type: String, required: true },
country: { type: String, required: true },
lat: Number,
lng: Number,
},
paymentMethod: { type: String, required: true },
paymentResult: {
id: String,
status: String,
update_time: String,
email_address: String,
},
itemsPrice: { type: Number, required: true },
shippingPrice: { type: Number, required: true },
taxPrice: { type: Number, required: true },
totalPrice: { type: Number, required: true },
user: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true },
seller: { type: mongoose.Schema.Types.ObjectID, ref: 'User' },
isPaid: { type: Boolean, default: false },
paidAt: { type: Date },
isDelivered: { type: Boolean, default: false },
deliveredAt: { type: Date },
},
{
timestamps: true,
}
);
const Order = mongoose.model('Order', orderSchema);
export default Order;
And for the case of sellers how could I do the same for specific sellers.
I would like to create charts and graphs with that data so any help counts. Thank You!
I have a model in Mongoose that looks like this:
const orderLogSchema = mongoose.Schema(
{
removed: { type: String, required: true },
},
{
timestamps: true,
}
)
const orderSchema = mongoose.Schema({
user: {
type: mongoose.Schema.Types.ObjectId,
required: true,
ref: 'User'
},
orderItems: [
{
name: { type: String, required: true},
qty: { type: Number, required: true},
image: { type: String, required: true},
price: { type: Number, required: true},
product: { type: mongoose.Schema.Types.ObjectId, required: true, ref: 'Product'},
}
],
shippingAddress: {
address: { type: String, required: true },
city: { type: String, required: true },
postalCode: { type: String, required: true },
country: { type: String, required: true },
},
paymentMethod: {
type: String,
required: true,
},
paymentResult: {
id: { type: String },
status: { type: String },
update_time: { type: String },
email_address: { type: String },
},
taxPrice: {
type: Number,
required: true,
default: 0.0
},
shippingPrice: {
type: Number,
required: true,
default: 0.0
},
totalPrice: {
type: Number,
required: true,
default: 0.0
},
isPaid: {
type: Boolean,
required: true,
default: false
},
paidAt: {
type: Date,
},
isDelivered: {
type: Boolean,
required: true,
default: false
},
deliveredAt: {
type: Date,
},
couponCode: {
type: Object,
required: false
},
orderVerifyLog: [orderLogSchema],
}, {
timestamps: true
})
I need to be able to empty out the orderVerifyLog which is populated with the orderLogSchema. I have tried a bunch of things most recently I pulled the order into a variable, and I am able to access orderVerifyLog by using order.orderVerifyLog but I cant figure out how to empty out that orderLogSchema. I tried:
order.orderVerifyLog = []
order.save()
Is there an easy way to work with that "sub" schema and zero it out?
Basically I am pulling the log items from that schema for an order and displaying them on my front-end. Then I was to fire off an action to clears it out so they don't display every time the order is loaded (Only want them to show once). I also tired to loop over each item in the orderVerifyLog and use pull to remove them, but for some reason it always leaves one in there.