sequelize建立多对多关联之后插入数据报错

Question

背景：const EventUser = sequelize.define('userEvents', {    payStatus: Sequelize.STRING }) User.belongsToMany(Event, { through: EventUser}) Event.belongsToMany(User, { through: EventUser})使用：        const event = await EventModel.getEventDetail(eventId);        const user = await UserModel.findUserById(userId);        //这里event和user都是有值的，确认         try {            await event.addUser(user, { through: { payStatus: payStatus }}) //这里报错         } catch (e) {             console.log(e)         }

Answer 1

Event.findOne({
            where: {
                id: eventId
            },
        }).then(event => {            console.log(event)
            User.findById(userId).then(user => {                console.log(user)
                event.addUser(user, { through: { payStatus: payStatus }})
            });
        })

Answer 2

用promise写法就可以。。。await就不行?