Join sequelize include只返回一个结果

我有一个

Users

表和一个

Groups

表，当我检索单个用户时，我想得到该用户所属的所有组的列表。我创建了一个名为

GroupUsers

的联接表，上面有

userId

和

groupId

，这就是我如何知道用户属于一个组的原因。现在，当我尝试使用

find

上的sequelize

include

获取用户所属组的列表时，如果用户属于不同的组，它只返回第一个匹配项。我如何解决这个问题

用户控制器

return models.Users
.find({
  include: [{
    model: models.Groups,
    as: 'groups',
    limit: null,
    required: false
  }],
  where: { username }
})

返回以下内容：

{
    "id": 1,
    "username": "John",
    "phone": "xxxxxxxx",
    "email": "john@email.com",
    "createdAt": "2017-07-16T20:14:04.744Z",
    "updatedAt": "2017-07-16T20:14:04.744Z",
    "groups": [
        {
            "id": 1,
            "name": "Test Group",
            "type": "Public",
            "createdAt": "2017-07-16T20:13:18.392Z",
            "updatedAt": "2017-07-16T20:13:18.392Z",
            "GroupUsers": {
                "userId": 1,
                "groupId": 1,
                "last_seen": null,
                "createdAt": "2017-07-16T20:14:27.903Z",
                "updatedAt": "2017-07-16T20:14:27.903Z"
            }
        }
    ]
}

    {
        "id": 1,
        "username": "John",
        "phone": "xxxxxxxx",
        "email": "john@email.com",
        "createdAt": "2017-07-16T20:14:04.744Z",
        "updatedAt": "2017-07-16T20:14:04.744Z",
        "groups": [
            {
                "id": 1,
                "name": "Test Group",
                "type": "Public",
                "createdAt": "2017-07-16T20:13:18.392Z",
                "updatedAt": "2017-07-16T20:13:18.392Z",
                "GroupUsers": {
                    "userId": 1,
                    "groupId": 1,
                    "last_seen": null,
                    "createdAt": "2017-07-16T20:14:27.903Z",
                    "updatedAt": "2017-07-16T20:14:27.903Z"
                }
            },
            {
                "id": 2,
                "name": "Test Group 2",
                "type": "Public",
                "createdAt": "2017-07-16T20:13:18.392Z",
                "updatedAt": "2017-07-16T20:13:18.392Z",
                "GroupUsers": {
                    "userId": 1,
                    "groupId": 2,
                    "last_seen": null,
                    "createdAt": "2017-07-16T20:14:27.903Z",
                    "updatedAt": "2017-07-16T20:14:27.903Z"
                }
            }
        ]
    }

而不是这个：

{
    "id": 1,
    "username": "John",
    "phone": "xxxxxxxx",
    "email": "john@email.com",
    "createdAt": "2017-07-16T20:14:04.744Z",
    "updatedAt": "2017-07-16T20:14:04.744Z",
    "groups": [
        {
            "id": 1,
            "name": "Test Group",
            "type": "Public",
            "createdAt": "2017-07-16T20:13:18.392Z",
            "updatedAt": "2017-07-16T20:13:18.392Z",
            "GroupUsers": {
                "userId": 1,
                "groupId": 1,
                "last_seen": null,
                "createdAt": "2017-07-16T20:14:27.903Z",
                "updatedAt": "2017-07-16T20:14:27.903Z"
            }
        }
    ]
}

    {
        "id": 1,
        "username": "John",
        "phone": "xxxxxxxx",
        "email": "john@email.com",
        "createdAt": "2017-07-16T20:14:04.744Z",
        "updatedAt": "2017-07-16T20:14:04.744Z",
        "groups": [
            {
                "id": 1,
                "name": "Test Group",
                "type": "Public",
                "createdAt": "2017-07-16T20:13:18.392Z",
                "updatedAt": "2017-07-16T20:13:18.392Z",
                "GroupUsers": {
                    "userId": 1,
                    "groupId": 1,
                    "last_seen": null,
                    "createdAt": "2017-07-16T20:14:27.903Z",
                    "updatedAt": "2017-07-16T20:14:27.903Z"
                }
            },
            {
                "id": 2,
                "name": "Test Group 2",
                "type": "Public",
                "createdAt": "2017-07-16T20:13:18.392Z",
                "updatedAt": "2017-07-16T20:13:18.392Z",
                "GroupUsers": {
                    "userId": 1,
                    "groupId": 2,
                    "last_seen": null,
                    "createdAt": "2017-07-16T20:14:27.903Z",
                    "updatedAt": "2017-07-16T20:14:27.903Z"
                }
            }
        ]
    }

---

我确信我在某个地方做错了什么，我只是不知道在哪里，同样的事情也可能是sequelize的原因，包括结果中的联接表：

GroupUsers

在我的关联中，我似乎做了：

Users.belongsToMany(models.Groups, {
  through: 'GroupUsers',
  as: 'groups',
  foreignKey: 'groupId'
});

而不是：

Users.belongsToMany(models.Groups, {
  through: 'GroupUsers',
  as: 'groups',
  foreignKey: 'userId'
});

注意

foreignKey

属性

对于同样返回的

GroupUsers

对象，我通过以下操作删除了它：

include: [{
    model: models.Groups,
    as: 'groups',
    attributes: ['id', 'name'],
    through: { attributes: [] }
  }]

---

请注意

到

键，该键的

属性设置为空数组。
第二个键的foreignKey:'userId'。我写了一篇关于它的文章，您可以查看：