我正在尝试为我的用户模型创建一个'checkPassword'方法,但每当我调用它时,我都会收到以下错误:
User.checkPassword(password, hash, function(err, samePassword){
^
TypeError: undefined is not a function
我对猫鼬很新,所以我不确定我哪里出错了。
users.js(用户模型)
var mongoose = require('mongoose'),
Schema = mongoose.Schema,
bcrypt = require('bcrypt');
var userSchema = new Schema({
email : {type: String, required: true, unique: true},
password : {type: String, required: true},
firstName : {type: String},
lastName : {type: String}
});
userSchema.methods.checkPassword = function checkPassword(password, hash, done){
bcrypt.compare(password, hash, function(err, samePassword) {
if(samePassword === true){
done(null, true);
} else {
done(null, false)
}
});
}
module.exports = mongoose.model('User', userSchema);
passport.js
var passport = require('passport'),
LocalStrategy = require('passport-local').Strategy,
mongoose = require('mongoose'),
usersModel = require('../models/users'),
User = mongoose.model('User');
passport.use(new LocalStrategy({
usernameField: 'email',
passwordField: 'password'
}, function(email, password, done){
User.findOne({'email': email}, function(err, user){
if(user){
var hash = user.password;
User.checkPassword(password, hash, function(err, samePassword){
if(samePassword === true){
done(null, user);
}
等。
如果我在console.log用户模型(在passport.js的开头),我可以看到该方法存在,但我无法使用它。我的模型布局类似于文档中的模型布局:http://mongoosejs.com/docs/guide.html(实例方法部分)。
答案 0 :(得分:10)
您正在声明实例方法(意味着在User
模型/类的实例上调用),但您将其称为 class 方法(用Mongoose说法的static method)。
这是一个小型演示:
var mongoose = require('mongoose');
var testSchema = new mongoose.Schema({ test : String });
testSchema.methods.myFunc = function() {
console.log('test!');
};
var Test = mongoose.model('Test', testSchema);
// This will fail, because you're calling a class method.
Test.myFunc();
// This will work, because you're calling the method on an instance.
var test = new Test();
test.myFunc();
因此,在您的代码中,您应该将User.checkPassword(...)
替换为user.checkPassword(...)
(并稍微重写一下),或者使用userSchema.statics.checkPassword = function(...)
使其成为正确的类方法。