[mysql] How to auto generate migrations with Sequelize CLI from Sequelize models?

While it doesn't auto generate, one way to generate new migrations on a change to a model is: (assuming that you're using the stock sequelize-cli file structure where migrations, and models are on the same level)

  1. (Same as Manuel Bieh's suggestion, but using a require instead of an import) In your migration file (if you don't have one, you can generate one by doing "sequelize migration:create") have the following code:

    'use strict';
    var models = require("../models/index.js")
    module.exports = {
      up: function(queryInterface, Sequelize) {
        return queryInterface.createTable(models.User.tableName, 
          models.User.attributes);
      },
      down: function(queryInterface, Sequelize) {
        return queryInterface.dropTable('Users');
      }
    };
    
  2. Make a change to the User model.

  3. Delete table from database.
  4. Undo all migrations: sequelize db:migrate:undo:all
  5. Re-migrate to have changes saved in db. sequelize db:migrate

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