猫鼬对象方法不是一个函数

下面是我的代码，它对我有用。

-----User Model
const mongoose = require('mongoose');
const validator = require('validator');
const bcrypt = require('bcryptjs');
const jwt = require('jsonwebtoken');
const userSchema = new mongoose.Schema({
    name:{
        type: String,
        required: [true, 'Pleae enter your name']
    },
    email:{
        type: String,
        required: [true, 'Please enter your email address'],
        unique: true,
        validate: [validator.isEmail, 'Please enter a valid email address']
    },
    role: {
        type: String,
        enum:{
            values: ['user', 'employer'],
            message : 'Please select your role'
        },
        //required: [true, 'Please select role that is required'],
        default: 'user'
    },
    password :{
        type: String,
        required: [true, 'Please enter password for your account'],
        minlength: [8, 'Your password must be a t leeast 8 characters long'],
        select: false
    },
    createdAt: {
        type: Date,
        default: Date.now
    },
    resetPasswordToken: String,
    resetPasswordExpire: Date
});
//Encryting Passwords before Saving
userSchema.pre('save', async function(next){
    this.password = await bcrypt.hash(this.password, 10);
});
//Return JSON web token
userSchema.methods.getJwtToken = function(){
    return jwt.sign({id: this._id}, process.env.JWT_SECRET, {
        expiresIn: process.env.JWT_EXPIRES_TIME
    });
}
//Compare password in database
userSchema.methods.comparePassword = async function(enterPassword){
    return await bcrypt.compare(enterPassword, this.password);
}

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



-----Auth Controller
const User = require('../models/users');
const catchAsyncErrors = require('../middlewares/catchAsyncErrors');
const ErrorHandler = require('../utils/errorHandler');
//Register a new user ==> /api/v1/user/register
exports.registerUser = catchAsyncErrors(async(req, res, next) => {
    const { name, email, password, role} = req.body;
    
    const user = await User.create({
        name,
        email,
        password,
        role
    });
    //Create JWT Token
    const token = user.getJwtToken();
    res.status(200).json({
        succes: true,
        message: 'User created succesfully',
        data: user,
        token: token
    })
});

//Loguin user => /api/v1/login
exports.loginUser = catchAsyncErrors( async(req, res, next) =>{
    const { email, password } = req.body;
    if(!email || !password){
        return next (new ErrorHandler('Please enter email and password'), 400);
    }
    //Finding user in database
    const user = await (await User.findOne({email})).isSelected('+password');
    if(!user){
        return next(new ErrorHandler('Invalid Email or Password', 401));
    }
    //Check if passwoerd is correct
    const isPasswordMatched = await user.comparePassword(password);
    if(!isPasswordMatched){
        return next (new ErrorHandler('Invalid Email or Password', 401));
    }
    //Create JSOBN Web Token
    const token = user.getJwtToken();
    res.status(200).json({
        succes: true,
        token
    })
})

尝试这样做：

型号/用户.js

var mongoose = require('mongoose');
var crypto = require('crypto');
var jwt = require('jsonwebtoken');
var UserSchema = new mongoose.Schema({
  username: {type: String, lowercase: true, unique: true},
  hash: String,
  salt: String
});
UserSchema.methods.setPassword = function(password){
  this.salt = crypto.randomBytes(16).toString('hex');
  this.hash = crypto.pbkdf2Sync(password, this.salt, 1000, 64).toString('hex');
};
UserSchema.methods.validPassword = function(password) {
  var hash = crypto.pbkdf2Sync(password, this.salt, 1000, 64).toString('hex');
  return this.hash === hash;
};
UserSchema.methods.generateJWT = function() {
  // set expiration to 60 days
  var today = new Date();
  var exp = new Date(today);
  exp.setDate(today.getDate() + 60);
  return jwt.sign({
    _id: this._id,
    username: this.username,
    exp: parseInt(exp.getTime() / 1000),
  }, 'SECRET');
};
// exports the user schema
module.exports = mongoose.model('User', UserSchema);

路由/索引.js

var express = require('express');
var router = express.Router();
var passport = require('passport');
var mongoose = require('mongoose'); 
var User = require('models/user'); // require the user model in the correct path
// line removed
//var User = mongoose.model('User');
router.post('/register', function(req, res, next){
  if(!req.body.username || !req.body.password){
    return res.status(400).json({message: 'Please fill out all fields'});
  }
  var user = new User();
  user.username = req.body.username;
  user.setPassword(req.body.password);
  user.save(function (err){
    if(err){ return next(err); }
    return res.json({token: user.generateJWT()})
  });
});
module.exports = router;

让我知道这是否有效。

有趣：始终确保您的文件没有保存在某个时髦的位置。我的stylesheets/文件夹中有一份Users.js的副本，这就是我一直在处理的副本。与此同时，models/的副本充满了很容易发现的小马车。