如果我有两个模式，比如:
var userSchema = new Schema({
twittername: String,
twitterID: Number,
displayName: String,
profilePic: String,
});
var User = mongoose.model('User')
var postSchema = new Schema({
name: String,
postedBy: User, //User Model Type
dateCreated: Date,
comments: [{body:"string", by: mongoose.Schema.Types.ObjectId}],
});
我试着像上面的例子那样把它们连接起来，但我不知道怎么做.最终，如果我能做这样的事情，我的生活会变得很轻松
var profilePic = Post.postedBy.profilePic
听起来你想要的是填充方法.首先，对你的帖子模式做一些小改动:
var postSchema = new Schema({
name: String,
postedBy: {type: mongoose.Schema.Types.ObjectId, ref: 'User'},
dateCreated: Date,
comments: [{body:"string", by: mongoose.Schema.Types.ObjectId}],
});
然后制作你的模型:
var Post = mongoose.model('Post', postSchema);
然后，当您进行查询时，可以像这样填充引用:
Post.findOne({_id: 123})
.populate('postedBy')
.exec(function(err, post) {
// do stuff with post
});