Question

在下面的client.save（）上，出现以下错误（可以正确捕获）：

DocumentNotFoundError：未找到查询“ {_id：'5bfbce595be7d1047c976e6b'}”的文档

app.put('/api/client', function (req, res) {
    Client.findOne(new mongoose.Types.ObjectId(req.body._id)).then(client => {
            //This is OK, I can see client and its properties
            client.name = req.body.name;
            //This is OK, I can see the updated client and its properties
            client.save().then(test => {
                console.log("ERR=" + err);
                console.log(test);
            }).catch(err => console.log("ERR :" + err));
            res.json(client);
        });
});

模型是这样的：

 mongoose.model('Client', {
    _id: {type: String, default: ''},
    name: {type: String, default: ''},
    creationDate: {type: Date, default: ''}
});

为什么在FindOne（）上找到文档，而在save（）上找不到文档？

Answer 1

尝试这样做：

 mongoose.model('Client', {
  _id: { type: mongoose.Schema.Types.ObjectId, auto: true },
  name: { type: String, default: '' },
  creationDate: { type: Date, default: Date.now() }
});

还有

Client.findOne().where({_id : req.body._id})...

AngularJS猫鼬findOne可以，但是保存错误：DocumentNotFoundError：

1 个答案: