在Node js + Express + Passport + MongoDB中更新用户记录

Question

好的，所以我一直在为此苦苦挣扎几个小时，无法弄清楚如何让它工作。

我也跟着上设置的NodeJS本教程完成的MongoDB，Express和护照： https://scotch.io/tutorials/easy-node-authentication-setup-and-local 它的伟大工程，但现在我想用验证的会话才能允许用户通过表单创建的显示名称。

我很难过，因为我无法弄清楚如何使用route/passport/session方法通过POST请求更新mongodb中的用户记录。

我的问题涉及下面的'过程更新配置文件'代码块。我试图使用user.update函数将一个显示名添加到我的用户记录中。我得到以下错误：

ReferenceError: user is not defined 
at Object.handle (/vagrant/new/app/routes.js:65:9) 
at next_layer (/vagrant/new/node_modules/express/lib/router/route.js:103:13) 
at Object.isLoggedIn [as handle] (/vagrant/new/app/routes.js:115:16) 
at next_layer (/vagrant/new/node_modules/express/lib/router/route.js:103:13) 
at Route.dispatch (/vagrant/new/node_modules/express/lib/router/route.js:107:5) 
at /vagrant/new/node_modules/express/lib/router/index.js:195:24 
at Function.proto.process_params (/vagrant/new/node_modules/express/lib/router/index.js:251:12) 
at next (/vagrant/new/node_modules/express/lib/router/index.js:189:19) 
at next_layer (/vagrant/new/node_modules/express/lib/router/route.js:77:14) 
at next_layer (/vagrant/new/node_modules/express/lib/router/route.js:81:14) 
at next_layer (/vagrant/new/node_modules/express/lib/router/route.js:81:14) 
at Route.dispatch (/vagrant/new/node_modules/express/lib/router/route.js:107:5) 
at /vagrant/new/node_modules/express/lib/router/index.js:195:24 
at Function.proto.process_params (/vagrant/new/node_modules/express/lib/router/index.js:251:12) 
at next (/vagrant/new/node_modules/express/lib/router/index.js:189:19) 
at next (/vagrant/new/node_modules/express/lib/router/index.js:166:38) 

我可以看到，用户不传递给我使用的功能，但我不能找出正确的方法应该是什么 - 或者，如果我接近这是正确的方式。 请参阅下面的代码：

// app/routes.js 
module.exports = function(app, passport) { 
// ===================================== 
// HOME PAGE (with login links) ======== 
// ===================================== 
app.get('/', function(req, res) { 
    res.render('index.ejs'); // load the index.ejs file 
}); 

//... some code (login, signup methods) omitted for brevity ... 

// ===================================== 
// UPDATE PROFILE ================= 
// ===================================== 
app.get('/updateprofile', isLoggedIn, function(req, res) { 
    res.render('updateprofile.ejs', { 
     user : req.user // get the user out of session and pass to template 
    }); 
}); 

// ===================================== 
// PROCESS UPDATE PROFILE======================= 
// ===================================== 
// process the update profile form 
app.post('/updateprofile', isLoggedIn, function(req, res) { 
    user.update({_id: req.session.passport.user}, { 
     displayName: req.body.displayName 
    }, function(err, numberAffected, rawResponse) { 
     console.log('new profile update error'); 
    }); 
    res.render('profile.ejs', { 
     user : req.user // get the user out of session and pass to template 
    }); 
}); 

// ===================================== 
// PROFILE SECTION ===================== 
// ===================================== 
// we will want this protected so you have to be logged in to visit 
// we will use route middleware to verify this (the isLoggedIn function) 
app.get('/profile', isLoggedIn, function(req, res) { 
    res.render('profile.ejs', { 
     user : req.user // get the user out of session and pass to template 
    }); 
}); 

}; 功能isLoggedIn（REQ，水库，下一个）{

// if user is authenticated in the session, carry on 
if (req.isAuthenticated()) 
    return next(); 

// if they aren't redirect them to the home page 
res.redirect('/'); 

}

Answer 1

你应该在你的routes.js文件的顶部添加此行：

var user = require('../app/models/user'); //i get the address of user model in the link you give, but in general it should be the user model address. 

因为当你使用更新函数，下面代码中的user应该是您的MongoDB模型的名称。

user.update({_id: req.session.passport.user}, { 
     displayName: req.body.displayName 
    },function(err, numberAffected, rawResponse) { 
     console.log('new profile update error'); 
    }); 

用于更新正确的查询是：

{_id: req.session.passport.user.id} 

，如果你想找到基于它的ID的用户，那么你应该与用户的ID查询。