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 +1,38 @@
+'use strict';
+
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.createTable('announcement_courses', {
+      id: {
+        type:          Sequelize.BIGINT,
+        autoIncrement: true,
+        primaryKey:    true,
+      },
+      announcement_id: {
+        type:       Sequelize.BIGINT,
+        allowNull:  false,
+        references: { model: 'announcements', key: 'id' },
+        onDelete:   'CASCADE',
+      },
+      course_id: {
+        type:       Sequelize.BIGINT,
+        allowNull:  false,
+        references: { model: 'courses', key: 'course_id' },
+        onDelete:   'CASCADE',
+      },
+    });
+
+    await queryInterface.addConstraint('announcement_courses', {
+      fields: ['announcement_id', 'course_id'],
+      type:   'unique',
+      name:   'uq_announcement_courses',
+    });
+
+    await queryInterface.addIndex('announcement_courses', { fields: ['announcement_id'], name: 'idx_announcement_courses_ann_id' });
+    await queryInterface.addIndex('announcement_courses', { fields: ['course_id'],       name: 'idx_announcement_courses_course_id' });
+  },
+
+  async down(queryInterface) {
+    await queryInterface.dropTable('announcement_courses');
+  },
+};