爲什麼Node.js插件Mongoose不起作用？我跟所有指令

Question

mongoose.connect('mongodb://localhost/guesswho'); 
var Schema = mongoose.Schema; 
var Message = new Schema({ 
    author: { type:String }, 
    body: { type:String }, 
}); 
var MessageModel = mongoose.model("Message"); 

我跟着這裏的每一個指令：https://github.com/LearnBoost/mongoose

但運行時，我得到這個錯誤：Error: Schema hasn't been registered for model "Message".

我甚至試過這樣：var MessageModel = mongoose.model("Message", Message); 當我做到這一點...有沒有錯誤。但是，MessageModel未定義。

Answer 1

修正：

var Message = new Schema({ 
    author: { type:String }, 
    body: { type:String }, 
}); 
mongoose.model("Message",Message); 
var MessageModel = mongoose.model("Message"); 
var aMessage = new MessageModel(); 
aMessage.author = "apple"; 
aMessage.body = "orange"; 
aMessage.save(function(e){ 

}); 

從IRC稱爲coreb有人固定它。