updated db migration

2026-09-27 00:12:54 +08:00 · 2026-07-20 12:28:46 +08:00
parent a2c9936f79
commit d665897ef5
129 changed files with 574 additions and 1878 deletions
@@ -0,0 +1,47 @@
+'use strict';
+
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.createTable('quiz_attempts', {
+      attempt_id:      { type: Sequelize.BIGINT, primaryKey: true, autoIncrement: true },
+      uuid:            { type: Sequelize.UUID, defaultValue: Sequelize.UUIDV4, unique: true },
+      user_id:         { type: Sequelize.BIGINT, allowNull: false, references: { model: 'users', key: 'user_id' }, onDelete: 'CASCADE' },
+      quiz_id:         { type: Sequelize.BIGINT, allowNull: true, references: { model: 'unit_quizzes',       key: 'quiz_id'       }, onDelete: 'SET NULL' },
+      assessment_id:   { type: Sequelize.BIGINT, allowNull: true, references: { model: 'course_assessments', key: 'assessment_id' }, onDelete: 'SET NULL' },
+      answers:         { type: Sequelize.JSONB, allowNull: false, defaultValue: {} },
+      total_points:    { type: Sequelize.INTEGER, allowNull: false, defaultValue: 0 },
+      earned_points:   { type: Sequelize.INTEGER, allowNull: false, defaultValue: 0 },
+      score:           { type: Sequelize.INTEGER, allowNull: false, defaultValue: 0 },
+      passed:          { type: Sequelize.BOOLEAN, allowNull: false, defaultValue: false },
+      attempt_number:  {
+        type:         Sequelize.INTEGER,
+        allowNull:    false,
+        defaultValue: 1,
+        comment:      '1-based counter per user + quiz (or user + assessment). Derived at insert time from prior attempt count.',
+      },
+      passing_score:   {
+        type:      Sequelize.INTEGER,
+        allowNull: true,
+        comment:   'Snapshot of the required passing score at the time of submission.',
+      },
+      course_id:       {
+        type:       Sequelize.BIGINT,
+        allowNull:  true,
+        references: { model: 'courses', key: 'course_id' },
+        onDelete:   'SET NULL',
+        comment:    'Denormalized course reference for fast per-course attempt queries.',
+      },
+      createdAt:       { type: Sequelize.DATE, allowNull: false },
+      updatedAt:       { type: Sequelize.DATE, allowNull: false },
+    });
+
+    await queryInterface.addIndex('quiz_attempts', ['user_id']);
+    await queryInterface.addIndex('quiz_attempts', ['quiz_id']);
+    await queryInterface.addIndex('quiz_attempts', ['assessment_id']);
+    await queryInterface.addIndex('quiz_attempts', { fields: ['course_id'], name: 'idx_qa_course_id' });
+  },
+
+  async down(queryInterface) {
+    await queryInterface.dropTable('quiz_attempts');
+  },
+};