模式數組路徑的值無效

Question

我正在嘗試構建包含以下內容的評論模型：Reply和CommentThread。 CommentThread包含Reply，並且Reply可以遞歸自己。

/models/comment.js：

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

var replySchema = new Schema({ 
    username: String, 
    timestamp: { type: Date, default: Date.now }, 
    body: String, 
    replies: [replySchema] 
}, {_id: true}); 

var commentThreadSchema = new Schema({ 
    title: String, 
    replies: [replySchema] 
}); 

var Reply = mongoose.model('Reply', replySchema); 
var CommentThread = mongoose.model('CommentThread', commentThreadSchema); 

module.exports = { 
    Reply: Reply, 
    CommentThread: CommentThread 
}; 

我的錯誤信息是：對於架構陣列路徑無效值 '回覆'。不能replySchema使用自己作爲值類型？或者其他一些原因？

c:\Users\jacki_000\projects\invictusblog\node_modules\mongoose\lib\schema.js:297 

     throw new TypeError('Invalid value for schema Array path `'+ prefix + ke 
      ^
TypeError: Invalid value for schema Array path `replies` 
    at Schema.add (c:\Users\jacki_000\projects\invictusblog\node_modules\mongoos 
e\lib\schema.js:297:13) 
    at new Schema (c:\Users\jacki_000\projects\invictusblog\node_modules\mongoos 
e\lib\schema.js:87:10) 
    at Object.<anonymous> (c:\Users\jacki_000\projects\invictusblog\models\comme 
nt.js:4:19) 
    at Module._compile (module.js:460:26) 
    at Object.Module._extensions..js (module.js:478:10) 
    at Module.load (module.js:355:32) 
    at Function.Module._load (module.js:310:12) 
    at Module.require (module.js:365:17) 
    at require (module.js:384:17) 
    at Object.<anonymous> (c:\Users\jacki_000\projects\invictusblog\services\com 
ment-service.js:1:83) 
    at Module._compile (module.js:460:26) 
    at Object.Module._extensions..js (module.js:478:10) 

Answer 1

https://searchcode.com/codesearch/view/6134527/

看到上面的例子，你需要做的是這樣

var replySchema = new Schema(); 
replyschema.add({ 
    username: String, 
    timestamp: { type: Date, default: Date.now }, 
    body: String, 
    replies: [replySchema] 
}); 

Answer 2

運行

NPM安裝mongoose@3.8.5

快速修復