Javascript 验证错误Mongodb

我面临着一个奇怪的问题，它给了我一个特定模式的ValidationError。我不确定坠机的原因，因为物体的类型对我来说似乎很好

// works fine but the Data in ObservationsObject is LOST

var ObservationsObject = Observations.ObservationsModel(timeTable.learningCenter.observations);
var LearningCenterObject = LearningCenter.LearningCenterModel(timeTable.learningCenter);
LearningCenterObject.observations = ObservationsObject;



 // GIVES VALID ERROR UPON LEARNINGCENTER.SAVE()

var LearningCenterObject = LearningCenter.LearningCenterModel(timeTable.learningCenter);
for (var i = 0; i < timeTable.learningCenter.observations.length; i++) {
    var ObservationsObject = Observations.ObservationsModel(timeTable.learningCenter.observations[i]);
    LearningCenterObject.observations.push(ObservationsObject);
}

模式：

LearningCenterObject.save(function (err, learningCenterSavedObject) {
        if (err) {
            console.error("TimeTableController->LearningCenterObject->save()", err);
            return;
        }
        console.log("TimeTableController->LearningCenterObject->save() SUCCESS");

        ObservationsObject.save(function (err, observationSavedObject) {
            if (err) {
                console.error("TimeTableController->LearningCenterObject->Observations->save()", err);
                return;
            }

            console.log("TimeTableController->LearningCenterObject->Observations->save() SUCCESS");
        });
    });

learningCenterSchema = new mongoose.Schema({
        name : String,
        observations: [{type: Schema.Types.ObjectId, ref: "observations_model"}]
    });


observationsSchema = new mongoose.Schema({
        obsNum : String,
        data: {ageGroup : String, category: String, description: String, tips: String}
    });

TimeTableController->LearningCenterObject->save() { [ValidationError: learning_center_model validation failed]
  message: 'learning_center_model validation failed',
  name: 'ValidationError',
  errors: 
   { observations: 
      { [CastError: Cast to Array failed for value "[object Object]" at path "observations"]
        message: 'Cast to Array failed for value "[object Object]" at path "observations"',
        name: 'CastError',
        kind: 'Array',
        value: [Object],
        path: 'observations',
        reason: [Object] } } }

"learningCenter": {
    "name": "asdf",
    "observations": [
      {
        "obsNum": "1.1111",
        "data": {
          "ageGroup": "sadf",
          "category": "df",
          "description": "adf",
          "tips": "asdf"
        }
      }
    ]
}

错误：

LearningCenterObject.save(function (err, learningCenterSavedObject) {
        if (err) {
            console.error("TimeTableController->LearningCenterObject->save()", err);
            return;
        }
        console.log("TimeTableController->LearningCenterObject->save() SUCCESS");

        ObservationsObject.save(function (err, observationSavedObject) {
            if (err) {
                console.error("TimeTableController->LearningCenterObject->Observations->save()", err);
                return;
            }

            console.log("TimeTableController->LearningCenterObject->Observations->save() SUCCESS");
        });
    });

learningCenterSchema = new mongoose.Schema({
        name : String,
        observations: [{type: Schema.Types.ObjectId, ref: "observations_model"}]
    });


observationsSchema = new mongoose.Schema({
        obsNum : String,
        data: {ageGroup : String, category: String, description: String, tips: String}
    });

TimeTableController->LearningCenterObject->save() { [ValidationError: learning_center_model validation failed]
  message: 'learning_center_model validation failed',
  name: 'ValidationError',
  errors: 
   { observations: 
      { [CastError: Cast to Array failed for value "[object Object]" at path "observations"]
        message: 'Cast to Array failed for value "[object Object]" at path "observations"',
        name: 'CastError',
        kind: 'Array',
        value: [Object],
        path: 'observations',
        reason: [Object] } } }

"learningCenter": {
    "name": "asdf",
    "observations": [
      {
        "obsNum": "1.1111",
        "data": {
          "ageGroup": "sadf",
          "category": "df",
          "description": "adf",
          "tips": "asdf"
        }
      }
    ]
}

示例JSON:

LearningCenterObject.save(function (err, learningCenterSavedObject) {
        if (err) {
            console.error("TimeTableController->LearningCenterObject->save()", err);
            return;
        }
        console.log("TimeTableController->LearningCenterObject->save() SUCCESS");

        ObservationsObject.save(function (err, observationSavedObject) {
            if (err) {
                console.error("TimeTableController->LearningCenterObject->Observations->save()", err);
                return;
            }

            console.log("TimeTableController->LearningCenterObject->Observations->save() SUCCESS");
        });
    });

learningCenterSchema = new mongoose.Schema({
        name : String,
        observations: [{type: Schema.Types.ObjectId, ref: "observations_model"}]
    });


observationsSchema = new mongoose.Schema({
        obsNum : String,
        data: {ageGroup : String, category: String, description: String, tips: String}
    });

TimeTableController->LearningCenterObject->save() { [ValidationError: learning_center_model validation failed]
  message: 'learning_center_model validation failed',
  name: 'ValidationError',
  errors: 
   { observations: 
      { [CastError: Cast to Array failed for value "[object Object]" at path "observations"]
        message: 'Cast to Array failed for value "[object Object]" at path "observations"',
        name: 'CastError',
        kind: 'Array',
        value: [Object],
        path: 'observations',
        reason: [Object] } } }

"learningCenter": {
    "name": "asdf",
    "observations": [
      {
        "obsNum": "1.1111",
        "data": {
          "ageGroup": "sadf",
          "category": "df",
          "description": "adf",
          "tips": "asdf"
        }
      }
    ]
}

---

对于新手来说，这个错误有点神秘和模糊。用外行的话说，错误是

“您正在将一个作为对象数组的对象分配给一个只能接受包含OBJECTID的对象引用的对象。”

虽然我在数组中推送的对象是{object，object}（不确定为什么Mongoose说它是[object object]，可能是更熟练的人可以帮我弄清楚这一点）一个对象，它是一个对象ID数组，但Mongoose验证失败

为了解决这个问题，我创建了一个数组。将ObservationModel对象ID推送到该数组中，并将该数组分配给LearningCenter.observations

var myArray = new Array();

var LearningCenterObject = LearningCenter.LearningCenterModel(timeTable.learningCenter);
for (var i = 0; i < timeTable.learningCenter.observations.length; i++) {
    var ObservationsObject = Observations.ObservationsModel(timeTable.learningCenter.observations[i]);
    myArray.push(ObservationsObject);
}

LearningCenterObject.observations = myArray;

var myArray=new Array（）；
var LearningCenterObject=LearningCenter.LearningCenterModel（timeline.LearningCenter）；
对于（变量i=0；i

我在尝试更新阵列中没有任何内容的模型时遇到了相同的问题。如果数组中没有任何内容，我只是将其初始化为空数组

    if (contact.group && contact.group.length > 0){
        for (let groupContact of contact.group) {
            groupContact = groupContact._id;
         }
    } else {
       contact.group = [];
    }

---

contact.save…

遇到了相同的错误，并找到了解决方案。对我来说，问题是我对参考子文档使用了

default:[]

，比如

product:{type:productSchema，default:[]}

我删除了

默认值：[]

并修复了错误