这是我使用的架构.如您所见,survey_codes模型路径由一个ObjectIds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,valid : {type: Boolean,default: true},create_date : {type: Date,default: Date.now},used_date : {type: Date,default: null}
});
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);
});
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);
}".
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"
]
}
]
2)依赖项的版本：
mongoose: 3.6.20 mongodb: 1.3.19 locomotive: 0.3.7 locomotive-mongoose: 0.1.0
解决方法
解决了(！)
在我的模型中一个简单的拼写错误：
survey_codes : [{type: ObjectId,
ref为模型名称,所以改为’SurveyCode’！
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