MongoDb:在数组中推送文档时出错

Question

我需要后端的帮助。我正在使用邮递员，这是我后端的模型：

name: {
        type: String,
        required: [true, 'Department Name is Required']
    },
    description: {
        type: String,
        required: [true, 'Description is Required']
    },
agents: [
        {
            agentId: {
                type: String,
                required: [true, 'Agent ID is Required']
            },
            createdOn: {
                type: String,
                default: new Date()
            }
        }
]

我试图在代理数组中推送文档，但我遇到了一些错误。

路线和控制器如下：

Routes:
router.post('/enroll', (req, res) => {
    UserController.enroll(req.body).then(result => res.send(result))
});

Controllers:
module.exports.enroll = (params) => {
    return Department.findById({departmentId: params.departmentId}).then(department => {
        department.agents.push({userId: params.userId})

        return department.save().then((department, error) => {
            return (err) ? false : true
        })
    })
}

这就是我得到的错误：（节点：9916）未经处理的PromisejectionWarning:CastError:CastToObjectId值“{departmentId:'60e27549c36af1272812c4e3'}”（类型对象）在模型“Department”的路径“\u id”处失败

目标是寻找部门ID，并将推送我已经获得的代理ID。

Answer 1

谢谢图萨！你帮了大忙。

我能够使用您提供的链接找到答案，并且意识到我在代码本身上犯了一些错误。哈哈哈

I've modified routes to:
router.post('/enroll/:id', (req, res) => {
    const params = {
        departmentId: req.params.id,
       agentId: req.body.agentId
    }
    
    UserController.enroll(params).then(department => res.send(department))
});

Then, some of the lines in my controllers too:
module.exports.enroll = (params) => {
    return Department.findById(params.departmentId).then(department => {
        department.agents.push({agentId: params.agentId})

        return department.save().then((department, error) => {
            return (error) ? false : true
        })
    })
}

它现在正在工作。

Answer 2

尝试

改变

退货部。findById（{departmentId:params.departmentId}）

到

返回Department.findById（params.departmentId）

findById仅接受id而不接受对象