猫鼬独特的指数不起作用 [英] Mongoose unique index not working

问题描述

我不希望重复的用户名能够在我的网站上注册。所以，我在mongoose模型中放置这样的东西：

I don's want duplicate usernames to be able to sign-up on my website. So, I place something like this in mongoose model:

var userSchema = new mongoose.Schema({
  username: { type: String, index: { unique: true }}, 
  password: String
});

但当我创建新用户时如下所示的控制器，它不会抛出异常并创建副本。

But when I create a new user in the controller like below, it does not throw an exception and creates a duplicate.

mongoose.model('User').create({
    username : email,
    password : password
}, function(err, user) {
    if (err) {
        // WHY DOES IT NOT THROW ERROR AND GET HERE?
    }
});

我已经尝试重启我的应用程序和mongod进程。

I have already tried to restart my application and mongod process.

推荐答案

我终于找到了解决这个问题的方法我还有

I finally found a fix to this issue I was also having

你需要

npm install mongoose-unique-validator

npm install mongoose-unique-validator

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