用mongoose填充模型对象的数组
这是我使用的模式。 正如你所看到的，survey_codes模型path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, required: true}, valid : {type: Boolean, default: true}, create_date : {type: Date, default: Date.now}, used_date : {type: Date, default: null} }); 在这里，我试图使用的function：
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function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); }".
我无法理解这一点。 这是我第一次在这里发布，我注意到你们中的几个人回答了类似的问题，但是解决scheme并不适合我的情况。
谢谢！
编辑：
这里是一些额外的信息：
1）来自餐厅的样品：
[ { "__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）依赖的版本：
mongoose: 3.6.20 mongodb: 1.3.19 locomotive: 0.3.7 locomotive-mongoose: 0.1.0
解决了（！）
我的模型中有一个简单的错字：
survey_codes : [{type: ObjectId, ref: SurveyCode}],
参考作为一个模型名称，所以'SurveyCode'，而不是！