如何在服务挂钩中检查关联特征-sequelize

const { Sequelize, Model, DataTypes } = require('sequelize');

// 创建sequelize实例
const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: 'mysql',
});

// 定义模型
const User = sequelize.define('User', {
  name: DataTypes.STRING,
});

const Post = sequelize.define('Post', {
  title: DataTypes.STRING,
});

// 定义关联关系
User.hasMany(Post);
Post.belongsTo(User);

// 在查询之前检查关联特征
Post.addHook('beforeFind', (options) => {
  if (options.include && options.include.length > 0) {
    // 检查是否包含关联模型
    console.log('检查关联特征');
  }
});

// 进行查询
Post.findAll({ include: [User] });