我使用MongoDB作为我的应用程序的日志(log)保管器,然后同步移动客户端.我在NodeJS中设置了以下模型:
var UserArticle = new Schema({
date: { type: Number, default: Math.round((new Date()).getTime() / 1000) }, //Timestamp!
user: [{type: Schema.ObjectId, ref: "User"}],
article: [{type: Schema.ObjectId, ref: "Article"}],
place: Number,
read: Number,
starred: Number,
source: String
});
mongoose.model("UserArticle",UserArticle);
var Log = new Schema({
user: [{type: Schema.ObjectId, ref: "User"}],
action: Number, // O => Insert, 1 => Update, 2 => Delete
uarticle: [{type: Schema.ObjectId, ref: "UserArticle"}],
timestamp: { type: Number, default: Math.round((new Date()).getTime() / 1000) }
});
mongoose.model("Log",Log);
当我想要检索日志(log)时,我使用以下代码:
var log = mongoose.model('Log');
log
.where("user", req.session.user)
.desc("timestamp")
.populate("uarticle")
.populate("uarticle.article")
.run(function (err, articles) {
if (err) {
console.log(err);
res.send(500);
return;
}
res.json(articles);
如您所见,我希望mongoose从日志(log)集合中填充"uarticle"字段,然后,我希望填充UserArticle("uarticle")的"article"字段.
但是,使用这段代码,Mongoose只使用UserArticle模型填充"uarticle",而不是uarticle内部的article字段.
可以使用Mongoose和populate()完成吗?或者我应该做些别的事情?
非常感谢.