text: 'use strict';
  
  module.exports = {
    up: (queryInterface, Sequelize) => {
      queryInterface.addColumn('CardSet', 'promptCards', {
        type: Sequelize.INTEGER,
        references: {
          model: 'PromptCard',
          key: 'id'
        }
      }),
      queryInterface.addColumn('CardSet', 'responseCards', {
        type: Sequelize.INTEGER,
        references: {
          model: 'ResponseCard',
          key: 'id'
        }
      })
    },
  
    down: (queryInterface, Sequelize) => {
      /*
        Add reverting commands here.
        Return a promise to correctly handle asynchronicity.
  
        Example:
        return queryInterface.dropTable('users');
      */
    }
  };
  