starr-philproperties/database/migrations/20260101000034-create-user-notifications.js

'use strict';

module.exports = {
  async up(queryInterface, Sequelize) {
    await queryInterface.createTable('user_notifications', {
      notification_id: { type: Sequelize.BIGINT, primaryKey: true, autoIncrement: true },
      user_id:         { type: Sequelize.BIGINT, allowNull: false, references: { model: 'users', key: 'user_id' }, onDelete: 'CASCADE' },
      type:            { type: Sequelize.STRING(64), allowNull: false },
      title:           { type: Sequelize.STRING(255), allowNull: false },
      message:         { type: Sequelize.TEXT, allowNull: false },
      data:            { type: Sequelize.JSONB, allowNull: true, defaultValue: null },
      seen:            { type: Sequelize.BOOLEAN, allowNull: false, defaultValue: false },
      seen_at:         { type: Sequelize.DATE, allowNull: true, defaultValue: null },
      createdAt:       { type: Sequelize.DATE, allowNull: false },
      updatedAt:       { type: Sequelize.DATE, allowNull: false },
    });

    await queryInterface.addIndex('user_notifications', { fields: ['user_id'],          name: 'idx_un_user_id'    });
    await queryInterface.addIndex('user_notifications', { fields: ['user_id', 'seen'],  name: 'idx_un_seen'       });
    await queryInterface.addIndex('user_notifications', { fields: ['type'],             name: 'idx_un_type'       });
    await queryInterface.addIndex('user_notifications', { fields: ['createdAt'],        name: 'idx_un_created_at' });
  },

  async down(queryInterface) {
    await queryInterface.dropTable('user_notifications');
  },
};