唯一属性不起作用 mongoose 重复项仍在添加中答案

【问题标题】：unique attribute is not working mongoose duplicates are still being added唯一属性不起作用 mongoose 重复项仍在添加中
【发布时间】：2021-09-27 07:35:04
【问题描述】：

所以我尝试了这个问题的上一个解决方案 1滴收集 2-drop数据库 3-添加dropDups 没有任何效果

const userSchema = new Schema({
    name: {
        type: String,
        required: [true, "please Enter your Name"],
        lowercase: true,
    },
    username: {
        type: String,
        required: [true, "please Enter your user name"],
        index: { unique: true, dropDups: true },
    },
    email: {
        type: String,
        required: [true, "please Enter your Email"],
        unique: true,
        lowercase: true,
        validate: [isEmail, "please Enter a valid Email"],
    },
    password: {
        type: String,
        required: [true, "please Enter a Password"],
        minlength: [8, "minimum password length is 8 characters"],
    },
    address: {
        type: String,
        required: [true, "please Enter your address"],
    },
});


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

如果有人有更新的解决方案，那就太好了

【问题讨论】：

标签： node.js database mongodb mongoose mongoose-schema

【解决方案1】：

您使用什么来添加新用户？我有同样的问题，我正在使用 User.create(...) 而是使用 new User (...)

async addUser(req, res) {
        const { name, username, email, password, address } = req.body;
        try {
            const user = new User({
                name: name,
                username: username,
                email: email,
                password: password,
                address: address,
            });
            const data = await user.save();
            res.status(201).json(data);
        } catch (err) {
            
            res.status(400).send(err);
        }

【讨论】：