我试图指定我的数据库在猫鼬的架构。目前我这样做:猫鼬:铸造ObjectId失败的值
var Schema = mongoose.Schema;
var today = new Date(2011, 11, 12, 0, 0, 0, 0);
var personSchema = new Schema({
_id : Number,
name: { type: String, required: true },
tel: { type: String, required: true },
email: { type: String, required: true },
newsitems: [{ type: Schema.Types.ObjectId, ref:'NewsItem'}]
});
var taskSchema = new Schema({
_id: Number,
description: { type: String, required: true },
startDate: { type: Date, required: true },
newsitems: [{ type: Schema.Types.ObjectId, ref:'NewsItem'}]
});
var newsSchema = new Schema({
_id: Number,
creator : { type: Schema.Types.ObjectId, ref: 'Person' },
task : { type: Schema.Types.ObjectId, ref: 'Task' },
date: { type: Date, required:true },
loc: {type: String, required: true }
});
var NewsItem = mongoose.model('NewsItem', newsSchema);
var Person = mongoose.model('Person', personSchema);
var Task = mongoose.model('Task', taskSchema);
var tony = new Person({_id:0, name: "Tony Stark", tel:"234234234", email:"[email protected]" });
var firstTask = new Task({_id:0, description:"Get an interview with the president", startDate:today});
var newsItem1 = new NewsItem({_id:0, creator: tony.id, task: firstTask.id, date: today, loc: "NY"});
newsItem1.save(function (err) {
if (err) console.log(err);
firstTask.save(function (err) {
if (err) console.log(err);
});
tony.save(function (err) {
if (err) console.log(err);
});
});
NewsItem
.findOne({ loc: "NY" })
.populate('creator')
.populate('task')
.exec(function (err, newsitem) {
if (err) console.log(err)
console.log('The creator is %s', newsitem.creator.name);
})
我创建模式并尝试保存一些数据。
错误:
{ message: 'Cast to ObjectId failed for value "0" at path "creator"',
name: 'CastError',
type: 'ObjectId',
value: '0',
path: 'creator' }
我写了一个基于这个代码:http://mongoosejs.com/docs/populate.html#gsc.tab=0
的分贝我尝试创建看起来像这样:Specify schema in mongoose。
我该如何解决这个问题?
thx的帮助,虽然查询和填充时,我得到一个错误。你碰巧知道我做错了什么? (更新了问题) – Ojtwist
你救了他们吗?它似乎应该起作用,除非它正在加载之前没有创建者保存的新闻项目。 – numbers1311407
我刚才补充说,尽管我认为我做错了。 – Ojtwist