How to add column in Sequelize existing model?

Question

I have added a model and a migration file using this command

node_modules/.bin/sequelize model:generate --name User --attributes firstName:string,lastName:strin         


        

Answer 1

In order to add new fields to the table,we should use migration skeleton as shown below.

sequelize migration:create --name Users

Open the migration file and add the below codes

module.exports = {
  up: function (queryInterface, Sequelize) {
    return [ queryInterface.addColumn(
              'Users',
              'gender',
               Sequelize.STRING
             ),
            queryInterface.addColumn(
             'Users',
             'age',
             Sequelize.STRING
          )];
  },

  down: function (queryInterface, Sequelize) {
    // logic for reverting the changes
  }
};

Then just run the migration

node_modules/.bin/sequelize db:migrate

Note: The passed queryInterface object can be used to modify the database. The Sequelize object stores the available data types such as STRING or INTEGER.

Full list of methods in Query Interface

I hope this will help you. If you have any issues let me know.