._doc in Mongoose

Question

我有这个js代码

app.post('/auth', async (req, res) => {
try {
const user = UserModel.findOne({email: req.body.email}).exec()
if (!user) return res.status(404).json({
message: 'Not find user'
})
const isValidPassword = bcrypt.compare(req.body.password,user._doc.passwordHash)
if (!isValidPassword) return res.status(404).json({
message: 'Incorrect password'
})
}
catch (err) {
console.log(err)
res.status(500).json({
message: 'error'
})
}
})

我有这个模式

import mongoose from 'mongoose'
const userSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
surname: {
type: String,
required: true
},
email: {
type: String,
required: true,
unique: true
},
passwordHash: {
type: String,
required: true
},
telegramUrl: {
type: String,
required: true
},
avatarUrl: String
},
{
timestamps: true
}
)
export default mongoose.model('User', userSchema)

在这一行

const isValidPassword = bcrypt.compare(req.body.password,user._doc.passwordHash)

我有错误：无法读取未定义的属性(读取"passwordHash"(。为什么我会出错？他写信给我的_文档未定义，但为什么？请帮帮我

Answer 1

在模式中使用这两种方法

const bcrypt = require("bcrypt");
// Create Hash Salt Password ..
userSchema.pre("save", async function (next) {
if (!this.isModified("passwordHash")) return next();
this.passwordHash = await bcrypt.hash(this.passwordHash, 12);
next();
});
// Compare Password ...
userSchema.methods.comparePassword = function (passwordHash) {
return bcrypt.compareSync(passwordHash, this.passwordHash);
};

在您的身份验证代码中

app.post('/auth', async (req, res) => {
try {
const user = await UserModel.findOne({email: req.body.email}).exec()
if (user) {
res.status(400).json(
{ message: 'User already register'})
}
else{
const newuser = New User({
name: req.body.name,
// also write other schema fields
}
const res = await newuser.save();
console.log(res)

catch (err) {
console.log(err)
res.status(500).json({
message: 'error'
})
}

})

我希望这能解决您的问题