Question

我必须在我的node.js express app中使用模式 - 用户和交付。

var User = new Schema({
    name: {type: String},
    addresses: [
        {
            city: {type: String},
            address: {type: String},
        }
    ],
});

我无法从交付架构的addresses字段引用用户的address子文档，因此address字段存储子文档的_id。

var Delivery = new Schema({
    time: {type: String},
    address: {type: String} // this field references to User schema's address subdocument
});

那么如何在address架构中填充Delivery字段？

Delivery.findOne(/*here is condition*/).populate({path: 'address', model: 'User.addresses'});

Answer 1

试试这个：

var Address = new Schema({
    city: {type: String},
    address: {type: String}
});
var AddressModel = mongoose.model('AddressModel', Address);

var User = new Schema({
    name: {type: String},
    addresses: [Address],
});

var Delivery = new Schema({
    time: {type: String},
    address: {
        type: Schema.ObjectId,
        res: 'Address'
    }
});

然后：

Delivery.findOne(/*here is condition*/).populate('address')...

猫鼬：与引用的子文档链接的人口

1 个答案: