node.js - "Path ' hashed_pa​​ssword ' is required"即使使用虚拟字段时 hash_password 字段已满

Question

我正在尝试创建一个应用程序，其中密码被发送到虚拟字段中，然后进行哈希处理并存储为哈希值。但是我不断收到此错误:

(node:32101) UnhandledPromiseRejectionWarning: ValidationError: User validation failed: hashed_password: Path `hashed_password` is required.

下面是我的代码，当我运行它时，我会得到代码下面包含的日志。

const mongoose = require('mongoose');
const uuidv1 = require('uuid/v1');
const cryptop = require('crypto');

const userSchema = new mongoose.Schema({
    name: {
        type: String,
        trim: true,
        required: true
    },
    email: {
        type: String,
        trim: true,
        required: true
    },
    hashed_password: {
        type: String,
        required: true
    },
    salt: String,
    created: {
        type: Date,
        default: Date.now
    },
    updated: Date
});

userSchema
    .virtual("password")
    .set(password => {
        // create temporary variable called _password
        this._password = password;
        // generate a timestamp
        this.salt = uuidv1();
        // encryptPassword()
        this.hashed_password = this.encryptPassword(password);
        console.log(this);
    })
    .get(function () {
        return this._password;
    });

userSchema.methods = {
    encryptPassword: password => {
        if (!password) return "";
        try {
            return crypto
                .createHmac("sha1", this.salt)
                .update(password)
                .digest("hex");
        } catch (err) {
            return "";
        }
    }
};

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

错误:

Express is listening on port 8080
DB connected
{ name: 'Ryan', email: 'ryan1@gmail.com', password: 'rrrrr' }
(node:32477) UnhandledPromiseRejectionWarning: TypeError: this.encryptPassword is not a function

当我在没有 encryptPassword 函数的情况下执行此操作时，我仍然收到错误:

const mongoose = require('mongoose');
const uuidv1 = require('uuid/v1');
const cryptop = require('crypto');

const userSchema = new mongoose.Schema({
    name: {
        type: String,
        trim: true,
        required: true
    },
    email: {
        type: String,
        trim: true,
        required: true
    },
    hashed_password: {
        type: String,
        required: true
    },
    salt: String,
    created: {
        type: Date,
        default: Date.now
    },
    updated: Date
});

userSchema
    .virtual("password")
    .set(password => {
        // create temporary variable called _password
        this._password = password;
        // generate a timestamp
        this.salt = uuidv1();
        // encryptPassword()
        // this.hashed_password = this.encryptPassword(password);
        this.hashed_password = 'Test hash';
        console.log(this);
    })
    .get(function () {
        return this._password;
    });

userSchema.methods = {
    encryptPassword: password => {
        if (!password) return "";
        try {
            return crypto
                .createHmac("sha1", this.salt)
                .update(password)
                .digest("hex");
        } catch (err) {
            return "";
        }
    }
};

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

错误:

Express is listening on port 8080
DB connected
{ name: 'Ryan', email: 'ryan1@gmail.com', password: 'rrrrr' }
{
  _password: 'rrrrr',
  salt: 'ff790ca0-34f0-11ea-9394-a53427d4f6bb',
  hashed_password: 'Test hash'
}
(node:32577) UnhandledPromiseRejectionWarning: ValidationError: User validation failed: hashed_password: Path `hashed_password` is required.

Answer 1

尝试使用function(password)而不是password =>。

当您使用箭头函数时，this 并不是指您正在保存的用户，这也是您在控制台登录时看不到姓名和电子邮件的原因。