嵌入模式给出错误

Question

我正在尝试将架构嵌入到我创建的其他架构中，但我不断收到此错误：

我不完全确定这里出了什么问题，但我想做的是在用户模式中存储对我的事件模式和兴趣模式的引用。如果有人能告诉我我做错了什么，那将是非常感谢！

编辑：我现在收到一个新错误：

   /Users/Dynee/node_modules/mongoose/lib/schema.js:421
  throw new TypeError('Invalid value for schema Array path `' + prefix + key + '`');
  ^

TypeError: Invalid value for schema Array path `eventsHosted`
at Schema.add (/Users/Dynee/node_modules/mongoose/lib/schema.js:421:13)
at new Schema (/Users/Dynee/node_modules/mongoose/lib/schema.js:99:10)
at Object.<anonymous> (/Users/Dynee/Documents/eventure-rest-backend/Models/User.js:5:18)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/Users/Dynee/Documents/eventure-rest-backend/Models/Event.js:2:43)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)

我的用户架构

var mongoose = require('mongoose');
var EventSchema = require('../Models/Event').schema;
var InterestSchema = require('../Models/Interest').schema;

var UserSchema = new mongoose.Schema({
    email: String,
    password: String,
    eventsHosted: [EventSchema],
    eventsAttended: [EventSchema],
    currentlyAttending: [EventSchema],
    currentlyHosting: [EventSchema],
    profileImage: String,
    interests: [InterestSchema],
    followers: [UserSchema],
    following: [UserSchema]

});

module.exports = mongoose.model('User', UserSchema);

我的事件架构

var mongoose = require('mongoose');
var UserSchema = require('../Models/User').schema;

var EventSchema = new mongoose.Schema({
    title: String,
    description: String,
    location: String,
    attendees: [UserSchema],
    date: String,
});

module.exports = mongoose.model('Event', EventSchema);

我的兴趣架构

var mongoose = require('mongoose');

var InterestSchema = new mongoose.Schema({
    name: String
});

module.exports = mongoose.model('Interest', InterestSchema);

Answer 1

这是因为您在模块中导出的不是Schemas，而是Models。当您执行var EventSchema = require('../Models/Event'); 时，您需要的是Event Model，而不是Event Schema。要从您的模型中访问底层架构，您可以执行以下操作：

var EventSchema = require('../Models/Event').schema;
var InterestSchema = require('../Models/Interest').schema;
var UserSchema = require('../Models/User').schema;

当您引用属于另一个集合的文档时也会遇到问题，这应该可以：

事件模型：

var mongoose = require('mongoose');
var UserSchema = require('./User').schema;

var EventSchema = new mongoose.Schema({
    title: String,
    description: String,
    location: String,
    attendees: [{ type: Schema.Types.ObjectId, ref: 'User' }],
    date: String
});

module.exports = mongoose.model('Event', EventSchema);

兴趣模型：

var mongoose = require('mongoose');

var InterestSchema = new mongoose.Schema({
    name: String
});

module.exports = mongoose.model('Interest', InterestSchema);

用户模型：

var mongoose = require('mongoose');
var EventSchema = require('./Event').schema;
var InterestSchema = require('./Interest').schema;

var UserSchema = new mongoose.Schema({
    email: String,
    password: String,
    eventsHosted: [{ type: Schema.Types.ObjectId, ref: 'Event' }],
    eventsAttended: [{ type: Schema.Types.ObjectId, ref: 'Event' }],
    currentlyAttending: [{ type: Schema.Types.ObjectId, ref: 'Event' }],
    currentlyHosting: [{ type: Schema.Types.ObjectId, ref: 'Event' }],
    profileImage: String,
    interests: [{ type: Schema.Types.ObjectId, ref: 'Interest' }],
    followers: [{ type: Schema.Types.ObjectId, ref: 'User' }],
    following: [{ type: Schema.Types.ObjectId, ref: 'User' }]
});

module.exports = mongoose.model('User', UserSchema);

How to reference another schema in my Mongoose schema? http://mongoosejs.com/docs/populate.html