MongoDB创建空文档

Question

以下代码就像30分钟前的魅力一样，但在尝试向我的架构添加日期后，它突然停止工作，现在我总是在我的集合中添加一个空文档。

我唯一得到的是：

{ "_id" : ObjectId("564e1e7681c448840e06caea"), "__v" : 0 }

任何人都可以帮我查明代码中的错误吗？

image.js

var mongoose = require('mongoose');
Schema = mongoose.Schema;

var imagesSchema = new Schema({
    auctionId: String,
    name: String,
    dateAdded: Date
});

mongoose.exports = imagesSchema;

auction.js

var mongoose = require('mongoose');
var imagesSchema = require('./image.js');
var Image = mongoose.model('Image', imagesSchema);

Schema = mongoose.Schema;

var auctionsSchema = new Schema({
    name: String,
    address:
    {
        street: String,
        number: Number,
        box: String,
        postalCode: Number,
        city: String,
    },  
    auctionDate: Date, 
    finished: Boolean,
    viewingCode: String,
    images: [{ type: Schema.Types.ObjectId, ref: 'Image' }]
});

mongoose.exports = auctionsSchema;

在初始化home.html页面时调用以下操作。因此，故障必须位于以下操作或上述模式设计中。

MongoOperations.js

var mongoose = require('mongoose');
var auctionSchema = require('./auction.js');

mongoose.connect("mongodb://localhost/auctionsDb");
var db = mongoose.connection;

db.on('error', console.error.bind(console, "connection error"));
var Auction = db.model('Auction', auctionSchema);

//Once a connection is made to the DB, log this,
//find the db and if there are no results in the db, create a basic entry
db.once('open', function () {
    console.log("auctionsDb is open...");

    Auction.find().exec(function (error, results) {
        if (results.length === 0) {
            Auction.create({
                name: "Zaal Hand in Hand",  
                address: {
                    street: "Street Anon", 
                    number: 317,
                    box: "AB",
                    postalCode: 9490,
                    city: "Anonty"
                }, 
                auctionDate: new Date(),
                finished: true,
                viewingCode: "",
                images: [{}]
            });
        }
    });
});

Answer 1

您遇到了一些问题，但主要的问题是，您可能需要将阅读module.exports的行更改为Schema。您没有导出{{1}}。

Answer 2

始终进行错误检查。您的文档插入失败，

hashb = hashb + nb.GetHashCode() * 31;

每当你有

message: 'Cast to Array failed for value "[object Object]" at path "images"',

无一例外总是做类似于

的事情

xxxx(function(error, results){ {

简单的解决方法是将图像参考无效：

xxxx(function(error, results){ {

    if (error) {
        console.log('save seeing error');
        console.log(error);
        return;
    }