MissingSchemaError：模式“用户”尚未注册模式。 [英] MissingSchemaError: Schema hasn't been registered for model "User"

问题描述

  var mongoose = require（'mongoose'）; 
 var Schema = mongoose.Schema; 
 
 var userSchema = new Schema（{
（define schema）
}）; 
 ... 
（保存用户）
 ... 
（检查密码）
 ... 
 mongoose.model（'User'，userSchema ）; 
  

在我的 router / index.js ，我有：

  var mongoose = require（'mongoose'）; 
 var User = mongoose.model（'User'）; 
  

会抛出错误：

  MissingSchemaError：模式User尚未注册模式。 
  

然而，如果在 user.js 我做（最后一行）

  module.exports = mongoose.model（'User'，userSchema）; 
  

和 index.js code> var User = require（'../ models / User'）; ，然后一切正常。

但它应该不是，因为在 config / pass.js 我正在做 var User = mongoose.model（'User'）; 它的工作非常完美。

require（'../ models / User'）; 语法不是在Ubuntu上工作，但是在我的Mac上。

我该怎么办？如何解决？我已经查看了大量的示例应用程序，包括 MEAN ，但没有什么是真正有用的

解决方案

当我尝试使用MEAN教程时，我遇到了同样的问题。

在完成了一些研究之后，我发现在app.js中，如果我将require（./ models / User）放在var routes = require（ ./routes/index），那么它有效。

像这样：

---

  mongoose.connect（ mongodb的：//本地主机/新闻）; 
 require（./ models / Posts）; 
 require（./ models / Comments）; 
 
 var routes = require（'./ routes / index'）; 
 var users = require（'./ routes / users'）; 
 
 var app = express（）; 
  

---

希望答案将会有帮助！ >

In my models/user.js file:

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

var userSchema = new Schema({
    (define schema)
});
...
(save user)
...
(check password)
...
mongoose.model('User', userSchema);

And in my router/index.js, I have:

var mongoose = require('mongoose');
var User = mongoose.model('User');

which throws the error:

MissingSchemaError: Schema hasn't been registered for model "User".

If however, in user.js, I do (in the last line)

module.exports = mongoose.model('User', userSchema);

and in index.js I do var User = require('../models/User');, then everything works.

But it should not, because in config/pass.js I am doing var User = mongoose.model('User'); and it's working flawlessly.

The require('../models/User'); syntax isn't working on Ubuntu, but is on my Mac.

What should I do? How do I fix it? I have looked at tons of sample apps, including MEAN but nothing was really helpful.

解决方案

I got the same problem when I am trying the MEAN tutorial.

After done a little bit research, I found that in app.js, if I put require("./models/User") before var routes = require("./routes/index"), then it works.

Like this:

---

mongoose.connect("mongodb://localhost/news");
require("./models/Posts");
require("./models/Comments");

var routes = require('./routes/index');
var users = require('./routes/users');

var app = express();

---

Hope the answer will be helpful!

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