貓鼬嵌套模式驗證錯誤

我對MEAN堆棧相當陌生，所以也許我做了一件令人難以置信的傻事。貓鼬嵌套模式驗證錯誤

我有幾個既定的模式（BlogEntry，ForumPost），都需要相同的嵌套模式（在這種情況下，評論），所以我已經將評論架構移動到其自己的文件，以避免任何代碼重複。

在BlogEntry的例子只是看，我有我的blog.js模型如下：

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

var BlogEntry = new Schema({ 
    title: String, 
    thumbnailUrl: String, 
    content: String, 
    comments: [ 
     { 
      type: Schema.Types.ObjectId, 
      ref: 'Comment' 
     } 
    ] 
}, { 
    timestamps: true 
}); 


var Blog = new Schema({ 
    createdBy: { 
     type: Schema.Types.ObjectId, 
     ref: 'User' 
    }, 
    name: { 
     type: String, 
     required: true 
    }, 
    headerImageUrl: String, 
    description: String, 
    blogEntries: [BlogEntry] 
}, { 
    timestamps: true 
}); 

module.exports = mongoose.model('Blog', Blog);

和註釋架構包含在comment.js：

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

var Comment = new Schema({ 
    commentText: { 
     type: String, 
     required: true 
    }, 
    postedBy: { 
     type: Schema.Types.ObjectId, 
     ref: 'User' 
    }, 
    parentComment: { 
     type: Schema.Types.ObjectId, 
     ref: 'Comment' 
    } 
}, { 
    timestamps: true 
}); 

module.exports = mongoose.model('Comment', Comment);

我的路由器處理博客信息包含以下內容：

var express = require('express'); 
var bodyParser = require('body-parser'); 
var mongoose = require('mongoose'); 
var Blog = require('../models/blog'); 
var Verify = require('./verify'); 
var blogRouter = express.Router(); 
blogRouter.use(bodyParser.json()); 

blogRouter.route('/') 
.get(function(req, res, next) { 
    Blog.find(req.query) 
     .populate('createdBy') 
     .exec(function(err, blog) { 
      if(err) return next(err); 
      res.json(blog); 
     }); 
}) 

.post(Verify.verifyOrdinaryUser, function(req, res, next) { 
    req.body.createdBy = req.decoded._id; 
    Blog.create(req.body, function(err, blog) { 
     if(err) return next(err); 
     console.log("Blog created"); 
     var id = blog._id; 
     res.writeHead(200, { 'Content-Type': 'text/plain'}); 
     res.end('Added the blog with id: ' + id); 
    }); 
}); 

module.exports = blogRouter;

當註釋模式處於分離Ë文件，我發佈了以下要求，我得到一個驗證錯誤：

{ 
    "name": "A Cheesemaker's Adventure", 
    "headerImageUrl": "images/cheeseAdven.png", 
    "description": "The story of a man's transformation from a miserable, downtrodden software engineer to a bouyant, joy-filled cheesemaker.", 
    "blogEntries" : [ 
     { 
      "title": "I like cheese", 
      "content": "Here is my story...blah blah blah...", 
      "comments": [ 
       { 
       "commentText": "Who's is this guy kidding!" 
       } 
      ] 
     } 
    ] 
} 


<!DOCTYPE html><html><head><title></title><link rel="stylesheet" href="/stylesheets/style.css"></head><body><h1>Blog validation failed</h1><h2></h2><pre>ValidationError: Blog validation failed 
    at MongooseError.ValidationError (C:\Development\hcj-express\node_modules\mongoose\lib\error\validation.js:22:11) 
    at model.Document.invalidate (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:1410:32) 
    at EmbeddedDocument.invalidate (C:\Development\hcj-express\node_modules\mongoose\lib\types\embedded.js:190:19) 
    at EmbeddedDocument.Document.set (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:703:10) 
    at EmbeddedDocument.Document.set (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:548:18) 
    at EmbeddedDocument.Document (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:67:10) 
    at new EmbeddedDocument (C:\Development\hcj-express\node_modules\mongoose\lib\types\embedded.js:30:12) 
    at EmbeddedDocument (C:\Development\hcj-express\node_modules\mongoose\lib\schema\documentarray.js:27:17) 
    at DocumentArray.cast (C:\Development\hcj-express\node_modules\mongoose\lib\schema\documentarray.js:254:22) 
    at DocumentArray.SchemaType.applySetters (C:\Development\hcj-express\node_modules\mongoose\lib\schematype.js:628:12) 
    at model.Document.set (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:695:18) 
    at model.Document.set (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:548:18) 
    at model.Document (C:\Development\hcj-express\node_modules\mongoose\lib\document.js:67:10) 
    at model.Model (C:\Development\hcj-express\node_modules\mongoose\lib\model.js:41:12) 
    at new model (C:\Development\hcj-express\node_modules\mongoose\lib\model.js:3175:11) 
    at C:\Development\hcj-express\node_modules\mongoose\lib\model.js:1847:51</pre></body></html>

但是，如果我擺脫comment.js文件，並移動註釋的模式進入blog.js文件，像這樣，我可以發佈與上面列出的完全相同的消息，驗證錯誤消失，並且我成功發佈數據。

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

var Comment = new Schema({ 
    commentText: { 
     type: String, 
     required: true 
    }, 
    postedBy: { 
     type: Schema.Types.ObjectId, 
     ref: 'User' 
    }, 
    parentComment: { 
     type: Schema.Types.ObjectId, 
     ref: 'Comment' 
    } 
}, { 
    timestamps: true 
}); 

var BlogEntry = new Schema({ 
    title: String, 
    thumbnailUrl: String, 
    content: String, 
    comments: [Comment] 
}, { 
    timestamps: true 
}); 

var Blog = new Schema({ 
    createdBy: { 
     type: Schema.Types.ObjectId, 
     ref: 'User' 
    }, 
    name: { 
     type: String, 
     required: true 
    }, 
    headerImageUrl: String, 
    description: String, 
    blogEntries: [BlogEntry] 
}, { 
    timestamps: true 
}); 

module.exports = mongoose.model('Blog', Blog);

Sooo ...我在這裏做錯了什麼？

來源

2016-09-15 Patrick Borrelli

當您使用單獨的文件工作時，您需要確保在'BlogEntry'Schema之前加載'評論'模式。

您可以在BlogEntry.js的頂部添加require('./comment.js')。示例：

var mongoose = require('mongoose'); 
var Schema = mongoose.Schema; 
var Comment = require('./comment.js'); 

var BlogEntry = new Schema({ 
    title: String, 
    thumbnailUrl: String, 
    content: String, 
    comments: [Comment] 
}, { 
    timestamps: true 
});

來源

2016-09-15 01:54:58

對您提到的更改進行了更改，並將其部署到服務器，並且仍然收到相同的錯誤。有趣的是，對用戶的嵌套引用工作正常，即使它在不同的文件中，並且在此模式文件中並不明確需要。 –

如果您在代碼中的其他位置使用了用戶（很可能是verifyOrdinaryUser函數）。然後，以前的'require'將它添加到mongoose緩存中。保留'''require（'./ comment.js'）'''並且嘗試改變'''評論：[Comment]'''爲 '''評論：[{0類型：Schema.Types。 ObjectId， ref：'Comment' }]''' –

我會同意@Rafael，這是comment.js的第一次使用，所以它應該在require語句中。我嘗試過使用'comments：[Comment]'和'comments：[{type：Schema.Types.ObjectId，ref：'Comment'}]'，但在兩種情況下都會得到相同的錯誤。 –

貓鼬嵌套模式驗證錯誤

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