sequelize 不是唯一的表/别名

Question

亲爱的我遇到了一个问题，因为包含加入一个表会抛出另一个表然后我立即包含它

如果我通过 (Provider) 访问 (User) 表，则 (User) 表应返回提供商名称

如果直接包含（用户）表，这意味着获取客户名称

但我收到以下错误

ER_NONUNIQ_TABLE：不唯一的表/别名：'Provider.User'

代码：

models.Order.findOne({

        where: {

            id: req.params.id



        },attributes: ['orderStatus','id','serviceId','providerId','orderDescription',"orderScheduledDate",'userLat','userLng','createdAt'],
        include: [
            {
                model: models.Provider,
                attributes: ['id','userId'],
                include : [{

                    model : models.User,
                    attributes: ['firstName','lastName','phoneNumber']

                },{


                    model : models.User,
                    attributes: ['phoneNumber']
                }]
            }
        ]
    })

Answer 1

如果你想包含两次相同的模型，你需要为关系/关联分配一个别名：

Provider.belongsTo/haveMany/any...(User, {as: 'ProviderUser'}); //<------ HERE
Provider.belongsTo/haveMany/any...(User, {as: 'User'}); //<------ HERE

include: [{
    model: models.Provider,
    attributes: ['id', 'userId'],
    include: [{
        model: models.User,
        as : 'User' //<---------- HERE
        attributes: ['firstName', 'lastName', 'phoneNumber']
    }, {
        model: models.User,
        as : 'ProviderUser' //<---------- HERE
        attributes: ['phoneNumber']
    }]
}]