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我对MEAN堆栈相当陌生,所以也许我做了一件令人难以置信的傻事。猫鼬嵌套模式验证错误
我有几个既定的模式(BlogEntry,ForumPost),都需要相同的嵌套模式(在这种情况下,评论),所以我已经将评论架构移动到其自己的文件,以避免任何代码重复。
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);
和注释架构包含在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);
我的路由器处理博客信息包含以下内容:
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;
当注释模式处于分离Ë文件,我发布了以下要求,我得到一个验证错误:
{
"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,如果我摆脱comment.js文件,并移动注释的模式进入blog.js文件,像这样,我可以发布与上面列出的完全相同的消息,验证错误消失,并且我成功发布数据。
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 ...我在这里做错了什么?
对您提到的更改进行了更改,并将其部署到服务器,并且仍然收到相同的错误。有趣的是,对用户的嵌套引用工作正常,即使它在不同的文件中,并且在此模式文件中并不明确需要。 –
如果您在代码中的其他位置使用了用户(很可能是verifyOrdinaryUser函数)。然后,以前的'require'将它添加到mongoose缓存中。 保留'''require('./ comment.js')'''并且尝试改变'''评论:[Comment]'''为 '''评论:[{0类型:Schema.Types。 ObjectId, ref:'Comment' }]''' –
我会同意@Rafael,这是comment.js的第一次使用,所以它应该在require语句中。我尝试过使用'comments:[Comment]'和'comments:[{type:Schema.Types.ObjectId,ref:'Comment'}]',但在两种情况下都会得到相同的错误。 –