Is this possible to update multiple data with sequlize? - node.js

Question

I have created add product API like this. This is working fine. I'm posting successfully varient data by sharing product id as a foreign key, but I'm confused about how can I update product data. Can I update data by using this code?
try {
const { name, description, photo, tag, productId ,lableType,reccomendedProduct, varientDetails, isTex,GSTrate,GSTtyp, HSNcode, categoryId, subCategoryId, videoUpload,} = req.body;
const data= db.product.findOne({ where: { id: productId },
include: [{ model: db.tagModel, attributes: ["id","name","productId"]}, { model: db.reccomendProduct, attributes: ["id", "productName","productId"]},
{ model: db.varientModel, attributes: ["id", "sort","sku","productId","waightunitno","unit","mrp","discount","price","stock","minstock","outofstock"]}]
}).then(product => {
if (product) {
db.product.update({
categoryId: categoryId ? categoryId : product.categoryId,
subCategoryId: subCategoryId ? subCategoryId : product.subCategoryId,
name:name,
description:description,
lableType:lableType,
isTex:isTex,
// photo:req.file ? req.file.location:'',
photo:photo,
GSTrate:GSTrate,
GSTtyp:GSTtyp,
HSNcode:HSNcode,
categoryId:categoryId,
subCategoryId:subCategoryId,
videoUpload:videoUpload }, { where: { id: product.id }
})
}
if(varientDetails ) {
db.varientModel.findAll ({ where: { productId:productId }})
.then(varient => {
console.log(varient+data)
for (let i=0; i < varientDetails.length; i++) {
db.varientModel.update({
productId:productId,
sort:varientDetails[i].sort,
sku: varientDetails[i].sku,
waightunitno:varientDetails[i].waightunitno,
unit:varientDetails[i].unit,
mrp:varientDetails[i].mrp,
discount: varientDetails[i].discount,
price: varientDetails[i].price,
stock: varientDetails[i].stack,
minstock: varientDetails[i].minstock,
outofstock: varientDetails[i].outofstock
}, { where: { productId:productId[i] }
})
}
})
}

Answer 1

Yes, there are ways to do it.
I don't find them as expressive and as clear as multiple one.
1. Creating Query on own
You can create function like this
function updateUsers(updateFirstValue, updateSecondValue, productIds) {
let query = "";
for (let index = 0; index < productIds.length; index++) {
query += `update tableName set firstUpdateValue="${updateFirstValue[index]}",secondUpdateValue="${updateSecondValue[index]}" where productId="${productIds[index]}";`;
}
return query;
}
//This is vulnerable to SQL Injection so change according to your needs
//It's just idea of doing it
let firstUpdates = [800, 900, 10];
let secondUpdates = [1.23, 2.23, 8.97];
let productIds = [1, 9, 3];
let generatedQuery = updateUsers(firstUpdates, secondUpdates, productIds);
console.log(generatedQuery);
// to run this with sequelize we can execute plain query with this
//sequelize.query(generatedQuery);
2. Using bulkCreate and updateOnDuplicate
let updatingValue = [
{productId:1, sort:100,sku:800},
{productId:2, sort:800,sku:8.27},
{productId:3, sort:400,sku:7.77}
];
model.bulkCreate(updatingValue,{
fields:["productid","sort","sku"],
updateOnDuplicate: ["sort","sku"]
}
// these are the column name that gets updated if primaryKey(productId) gets matched you have to update these accordingly
)
It had problem before but is updated now this PR
Other methods but quite complicated are also here.