我有以下数据模型:
用户 - 地址 (一个用户有一个地址)。
出于可重用性的原因,我想在两个单独的文件中定义Address和User的模式。这两个“实体”的关系应该实现为嵌入式文档(没有数组,因为用户只有一个地址)。
使用Mongoose阅读Embedded document without Array?和https://github.com/LearnBoost/mongoose/pull/585这并不容易。根据Stackoverflow线程,它可以完成,如:
addressPersistenceModel.js:
var address = {
street: String,
zipCode: String,
...
};
module.exports = address;
userPersistenceModel.js:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var addressDefinition = require('./addressPersistenceModel');
var Address = new Schema(addressDefinition);
var UserEntityModel = new Schema({
firstname: String,
lastname: String,
...
address: Address
});
mongoose.model('User', UserEntityModel);
但是我仍然收到错误
TypeError: Undefined type at `address`
Did you try nesting Schemas? You can only nest using refs or arrays.
答案 0 :(得分:0)
定义你那样的实体
var UserEntityModel = new Schema({
firstname: String,
lastname: String,
address: addressDefinition
});
您可以嵌入“定义”,但不能嵌入已创建的架构。