updated db migration

database/migrations/20270101000018-create-quiz-options.js

@@ -0,0 +1,21 @@
+'use strict';
+
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.createTable('quiz_options', {
+      option_id:   { type: Sequelize.BIGINT, primaryKey: true, autoIncrement: true },
+      question_id: { type: Sequelize.BIGINT, allowNull: false, references: { model: 'quiz_questions', key: 'question_id' }, onDelete: 'CASCADE' },
+      text:        { type: Sequelize.TEXT, allowNull: false },
+      is_correct:  { type: Sequelize.BOOLEAN, defaultValue: false },
+      order_index: { type: Sequelize.INTEGER, defaultValue: 0 },
+      createdAt:   { type: Sequelize.DATE, allowNull: false },
+      updatedAt:   { type: Sequelize.DATE, allowNull: false },
+    });
+
+    await queryInterface.addIndex('quiz_options', ['question_id']);
+  },
+
+  async down(queryInterface) {
+    await queryInterface.dropTable('quiz_options');
+  },
+};