Question

我一直在关注MEAN堆栈（https://jsfid）的教程，并且偶然发现了一个问题。尝试C:\Linked\linked>npm start > linked@0.0.0 start C:\Linked\linked > node ./bin/www C:\Linked\linked\node_modules\mongoose\lib\index.js:329 throw new mongoose.Error.MissingSchemaError(name); ^ MissingSchemaError: Schema hasn't been registered for model "Post". Use mongoose.model(name, schema) at Mongoose.model (C:\Linked\linked\node_modules\mongoose\lib\index.js:329:13) at Object.<anonymous> (C:\Linked\linked\routes\index.js:2:21) 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:\Linked\linked\app.js:8:14) 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:\Linked\linked\bin\www:7:11) npm ERR! Windows_NT 6.3.9600 npm ERR! argv "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start" npm ERR! node v0.12.3 npm ERR! npm v2.9.1 npm ERR! code ELIFECYCLE npm ERR! linked@0.0.0 start: `node ./bin/www` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the linked@0.0.0 start script 'node ./bin/www'. npm ERR! This is most likely a problem with the linked package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node ./bin/www npm ERR! You can get their info via: npm ERR! npm owner ls linked npm ERR! There is likely additional logging output above. npm ERR! Please include the following file with any support request: npm ERR! C:\Linked\linked\npm-debug.log时，我收到一条错误消息，具体如下：

routes\index.ejs

以下是可能包含此问题的文件。我尝试修改不同的行，主要是var mongoose = require('mongoose'); var Post = mongoose.model('Post'); var Comment = mongoose.model('Comment'); var express = require('express'); var router = express.Router(); /* GET home page. */ router.get('/', function(req, res, next) { res.render('index', { title: 'Express' }); }); module.exports = router; // GET posts router.get('/posts', function(req, res, next) { Post.find(function(err, posts){ if(err){ return next(err); } res.json(posts); }); }); // POST a post router.post('/posts', function(req, res, next) { var post = new Post(req.body); post.save(function(err, post){ if(err){ return next(err); } res.json(post); }); }); ...，但我还没有解决这个问题。

路由\ index.ejs

var mongoose = require('mongoose');

var PostSchema = new mongoose.Schema({
  title: String,
  link: String,
  upvotes: {type: Number, default: 0},
  comments: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Comment' }]
});

mongoose.model('Post', PostSchema);

// Upvote method
PostSchema.methods.upvote = function(cb) {
  this.upvotes += 1;
  this.save(cb);
};

模型\ Posts.js

var mongoose = require('mongoose');
require('./models/Posts');
require('./models/Comments');
mongoose.connect('mongodb://localhost/news');
var app = angular.module('linked', ['ui.router']);

公开\ Javascript角\ angularApp.js

rm -frd ~/Library/Developer/Xcode/DerivedData/*

如果我不清楚，请告诉我。

Answer 1

问题是你没有在你的index.ejs文件中包含模型文件 - 你只是在mongoose中引用模型引用。

你在哪里

var Post = mongoose.model('Post');
var Comment = mongoose.model('Comment');

将这些替换为链接到models / Posts.js文件的require语句

var Post = require('models/Posts');

MissingSchemaError：尚未为模型“Post”注册Schema

1 个答案: