...
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,valid                 : {type: Boolean,default: true},create_date           : {type: Date,default: Date.now},used_date             : {type: Date,default: null}
});@H_404_3@ 
 
这里我正在尝试使用的功能：
 
  
 
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);
    });@H_404_3@ 
 
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,skipId);
    Model.call(this,doc,skipId);
  }".@H_404_3@ 
 
我无法理解这一点.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,但解决方案并不适用于我的情况.
 
 
谢谢！
 
 
编辑：
 
 
这是一些额外的信息：
 
 
1)来自餐馆集合的样本：
 
  
 
[
    {
        "__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"
        ]
    }
]@H_404_3@ 
 
2)依赖项的版本：
 
  
 
mongoose: 3.6.20
mongodb: 1.3.19
locomotive: 0.3.7
locomotive-mongoose: 0.1.0@H_404_3@