javascript - Model.function 不是路由器内的函数

Question

我目前遇到了路由器内的问题。 我导出该函数，如以下代码所示。

这是我的模型:

"use strict";
var mongoose = require('mongoose');
var bcrypt = require("bcryptjs");
var Schema = mongoose.Schema;

var UserSchema = mongoose.Schema({
    username: {
        type: String,
        index: true,
        required: true
    },
    email: {
        type: String,
        required: true,
        unique: true
    },
    password: {
        type: String,
        required: true
    },
    firstname: {
        type: String,
        required: true
    },
    lastname: {
        type: String,
        required: true
    },
    gender: {
        type: String,
        required: true
    },
    country: {
        type: String,
        required: true
    },
    confirm: {
        type: Number
    },
    confirmcode: {
        type: String
    },
    ip: {
        type: String
    },
    signup: {
        type: Date, 
        default : Date.now
    },
    voice: {
        type: String
    },
    steam: {
        type: String
    },
    steamid: {
        type: String
    },
    steamlink: {
        type: String
    },
    battletag: {
        type: String
    },
    showsteam: {
        type: Number
    },
    showbnet: {
        type: Number
    },
    birthdate: {
        type: Date,
        required: true
    },
    language: {
        type: String
    }
});

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

module.exports.createUser = function(newUser, callback){
    bcrypt.genSalt(10, function(err, salt) {
        bcrypt.hash(newUser.password, salt, function(err, hash) {
            newUser.password = hash;
            newUser.save(callback);
        });
    });
}

module.exports.comparePw = function(canPw, hash, callback){
    bcrypt.compare(canPw, hash).then((res) => {
        callback(null,res);
    });
}

module.exports.findUserById = function(id,callback){
    User.findById(id,callback);
}

module.exports.getGamer  = function(count,callback){
    User.count(count,callback);
}

module.exports.findUsername = function(uname, callback){
    var query = {username:uname};
    User.findOne(query,callback);
}

module.exports.findEmail = function(email, callback){
    var query = {email:email};
    User.findOne(query,callback);
}

这是我的路由器:

var User = require("../../model/user");
module.exports = function(router){
    router.get("/user", function(req, res){
        var user = new User();
        user.getGamer(function(err,response){
            if(err){
                throw err;
            }else{
                res.json(response);
            }
        });
    });
}

我得到的错误是:

TypeError: user.getGamer is not a function

但我不知道为什么。任何人都可以帮助我吗？

Answer 1

您需要将模型方法附加到架构，而不是模型。然后这些方法将在您的模型实例上可用。请参阅this post了解更多。

UserSchema.methods.getGamer = function(newUser, callback) ...