7

这是我使用的架构。如您所见，survey_codes 模型路径由 ObjectId 数组组成。

...
var Schema = mongoose.Schema;
var Email = mongoose.SchemaTypes.Email;
var ObjectId = mongoose.SchemaTypes.ObjectId;

var RestaurantSchema = new Schema({
  id                    : {type: String, required: true, unique: true},
  name                  : {type: String, required: true},
  owner_name            : String,
  reservation_email     : Email,
  survey_url            : String,
  survey_codes          : [{type: ObjectId, ref: SurveyCode}],
  created_at            : {type: Date, default: Date.now}
});

var SurveyCodeSchema = new Schema({
  code                  : {type: String, unique: true, required: true},
  valid                 : {type: Boolean, default: true},
  create_date           : {type: Date, default: Date.now},
  used_date             : {type: Date, default: null}
});

这里是我尝试使用的功能：

Restaurant
    .findOne({ id: self.param('id') })
    .populate('survey_codes')
    .exec(function(err, restaurant) {
      if (err)
        console.log('Error in view survey codes function');
      if (!restaurant || restaurant.survey_codes.length < 1)
        self.res.send('No survey codes are yet generated.');
      else
        self.res.send(restaurant.survey_codes);
    });

当我执行该函数时，它给了我这个错误：

Locomotive 0.3.7 application starting in development on http://0.0.0.0:3000

/home/pblondin/nodejs-dev/rezerve-locomotive/node_modules/mongoose/lib/utils.js:419
        throw err;
              ^
MissingSchemaError: Schema hasn't been registered for model "function model(doc, fields, skipId) {
    if (!(this instanceof model))
      return new model(doc, fields, skipId);
    Model.call(this, doc, fields, skipId);
  }".

我只是无法理解这一点。这是我第一次在这里发帖，我注意到你们中的几个人回答了类似的问题，但解决方案不适用于我的情况。

谢谢！

编辑：

以下是一些附加信息：

1) 来自餐厅收藏的样本：

[
    {
        "__v": 1,
        "_id": "52617861b9ee6c171b000001",
        "id": "AAA",
        "name": "Name",
        "owner_name": "Owner",
        "reservation_email": "email@new.com",
        "survey_url": "new@new.com",
        "created_at": "2013-10-18T18:05:21.447Z",
        "survey_codes": [
            "52617864b9ee6c171b000002",
            "52617864b9ee6c171b000003",
            "52617864b9ee6c171b000004",
            "52617864b9ee6c171b000005",
            "52617864b9ee6c171b000006",
            "52617864b9ee6c171b000007",
            "52617864b9ee6c171b000008",
            "52617864b9ee6c171b000009",
            "52617864b9ee6c171b00000a",
            "52617864b9ee6c171b00000b"
        ]
    }
]

2）依赖版本：

mongoose: 3.6.20
mongodb: 1.3.19
locomotive: 0.3.7
locomotive-mongoose: 0.1.0
4

1 回答 1

7

解决了（！）

我的模型中有一个简单的错字：

survey_codes          : [{type: ObjectId, ref: SurveyCode}],

ref 作为模型名称，所以改为“SurveyCode”！

于 2013-10-19T16:09:08.460 回答