Foreign keys with Sequelize and Typescript

Question

Given these 2 Sequelize models:

export class Users extends Model<Users> {

    @HasMany(() => UserRoles)
    @Column({ primaryKey: true, allowNull: false, unique: true })
    UserId: string;

    @Column({ allowNull: false, unique: true })
    Email: string;
}

export class UserRoles extends Model<UserRoles> {

    @ForeignKey(() => Users)
    @Column({ primaryKey: true, allowNull: false, unique: true })
    UserId: string;

    @Column({ allowNull: false })
    RoleId: number;
}

When I create a user I will also create a row in UserRoles with the UserId being the foreign key and so there is always a One to one match.

When I try to run this I get:

Error: Naming collision between attribute 'UserId' and association 'UserId' on model Users. To remedy this, change either foreignKey or as in your association definition

I imagine that means that the 2 tables have the same column name UserId and that is causing the problem? If so how can I fix that? give it some kind of alias? or how?

Answer 1

如果你想要一个一对一的模型，即一个用户只能被分配一个角色，反之亦然，那么主键和外键约束使用相同的字段，否则使用不同的一个