bulk update sequelize code example

Example 1: create or update in sequelize

async function updateOrCreate (model, where, newItem) {
    // First try to find the record
   const foundItem = await model.findOne({where});
   if (!foundItem) {
        // Item not found, create a new one
        const item = await model.create(newItem)
        return  {item, created: true};
    }
    // Found an item, update it
    const item = await model.update(newItem, {where});
    return {item, created: false};
}

Example 2: sequelize update

var Book = db.define(‘books’, {
 title: {
   type: Sequelize.STRING
 },
 pages: {
   type: Sequelize.INTEGER
 }
})

Book.update(
   {title: req.body.title},
   {where: req.params.bookId}
 )

Example 3: update data in sequelize

const objectToUpdate = {
title: 'Hello World',
description: 'Hello World'
}

models.Locale.findAll({ where: { title: 'Hello World'}}).then((result) => {
   if(result){
   // Result is array because we have used findAll. We can use findOne as well if you want one row and update that.
        result[0].set(objectToUpdate);
        result[0].save(); // This is a promise
}
})

Example 4: update data in sequelize

const objectToUpdate = {
title: 'Hello World',
description: 'Hello World'
}

models.Locale.update(objectToUpdate, { where: { id: 2}})