const { DataTypes } = require('sequelize');
const sequelize = require('../config/db');
const Region = require('./Region');

const Apartment = sequelize.define('Apartment', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true
  },
  regionId: {
    type: DataTypes.INTEGER,
    allowNull: false,
    references: {
      model: Region,
      key: 'id'
    }
  },
  name: {
    type: DataTypes.STRING(50),
    allowNull: false
  },
  address: {
    type: DataTypes.STRING(255),
    allowNull: true
  },
  createTime: {
    type: DataTypes.DATE,
    defaultValue: DataTypes.NOW
  },
  updateTime: {
    type: DataTypes.DATE,
    defaultValue: DataTypes.NOW,
    onUpdate: DataTypes.NOW
  },
  isDeleted: {
    type: DataTypes.INTEGER,
    allowNull: false,
    defaultValue: 0
  }
}, {
  tableName: 'apartments',
  timestamps: false
});

// 建立关联
Apartment.belongsTo(Region, { foreignKey: 'regionId' });
Region.hasMany(Apartment, { foreignKey: 'regionId' });

module.exports = Apartment;