node js sequelize 在 model 中定义一个字段，类型为另一个 model

Question

i tried to import the model and give the field the type of the model but i get error that its not assignable.

 import { User } from './'; followerId: { type: User, allowNull: false, }

(btw i know you can get the field with relations but i need another field with the same type)

Answer 1

To achieve that you need an association:

https://sequelize.org/master/manual/assocs.html

YourModel.hasOne(User, {
    foreignKey: {
      name: 'followerId'
    }
});
User.belongsTo(YourModel);

and use include in queries:

const result = await YourModel.find({
  where: {
    // ...
  },
  include: User
})