sequelize 创建多对多关系报错？

Question

定义关联关系：

 Theme.belongsToMany(Product,{through:theme_product,foreignKey:'theme_id'})
 Product.belongsToMany(Theme,{through:theme_product,foreignKey:'product_id'})

theme_product为中间表

报错信息:

 throw new Error(this.name + '.belongsToMany called with something that\'snot a subclass of Sequelize.Model');
      ^

Error: Theme.belongsToMany called with something that's not a subclass of Sequelize.Model

Answer 1

我是通过这样的方式实现的，不知道对你有没有帮助。
Wordbook为word（单词表）和book（教材表）的关系表
Wordbook.belongsTo(WordModel, {
foreignKey: "wordid",
constraints: false,
});
// BelongsTo关联表示一对多关系的外键存在于源模型。
Wordbook.belongsTo(BookModel, {
foreignKey: "bookid",
constraints: false,
});

Answer 2

你好 我也碰到了这个报错,你是怎么解决的,能详细贴出你的代码 分享下吗?

Answer 3

问题已经解决，两个模型并不在同一个sequelize实例下。
参考该项目：https://segmentfault.com/a/11...