nswbmw / n-club

使用 Koa + MongoDB + Redis 搭建论坛系统

N-club

使用 koa 搭建论坛系统。

在线演示：https://n-club.herokuapp.com/。 教程：https://nswbmw.github.io/N-club。

本教程亦收录于《Node.js实战（第2季）》第五章，购书链接：

当当: http://product.dangdang.com/23783541.html
亚马逊: http://www.amazon.cn/Node-js%E5%AE%9E%E6%88%98-%E5%90%B4%E4%B8%AD%E9%AA%85/dp/B015RNAU5E/ref=sr_1_3
京东: http://item.jd.com/11778251.html

n-club's Issues

如何在路由里引入验证中间件

比如N-Club的的路由
http://localhost:3000/topic/57d65f08c0d001f037b165da

如何让只有已经登陆的用户查看这个主题，未登录的用户，跳转到登录页面，登录以后，再自动跳转回来

SyntaxError: Invalid Unicode escape sequence in "index.ejs"

Server listening on: 3000
<-- GET /
xxx GET / 500 158ms -

SyntaxError: Invalid Unicode escape sequence in "index.ejs"
at exports.compile (D:\node\N-club-master\node_modules.1.5.2@co-ejs\lib\ejs.js:339:15)
at exports.render (D:\node\N-club-master\node_modules.1.5.2@co-ejs\lib\ejs.js:381:66)
at next (native)
at exports.renderFile (D:\node\N-club-master\node_modules.1.5.2@co-ejs\lib\ejs.js:412:17)
at next (native)
at Object.app.context.render (D:\node\N-club-master\node_modules.1.5.2@co-ejs\lib\ejs.js:167:23)
at next (native)
at onFulfilled (D:\node\N-club-master\node_modules.4.6.0@co\index.js:65:19)

co-cache这个模块用到了redis

请问，两种不同的数据库可以一起用吗？？

用了koa-flash中间件之后页面会出现闪动

用了koa-flash中间件之后,页面加载完成时候还会闪动几次。浏览器：chrome
电脑：mac

你的项目没有用到redis，但是必须启动redis，是什么原因

建议升级到2.0

再结合aync wait搞一版 nodejs的书真是一买就过时( ▼-▼ ) 容许我先去哭一会儿

运行过程中出现问题

npm start 之后正常，但是在浏览器访问时主页出现如图所示错误，其余页面均重定向至主页无法访问
http://p6vc8zrmb.bkt.clouddn.com/localhost-3000-2018.04.08-21-38-03.png

koa 有什么好的debug技巧吗？

关于generator的问题

var userExist = yield $User.getUserByName(data.name);
if(userExist) {
//......
}

yield不是没有返回值的吗？下面这个程序a的值也没打印出来，为什么上面的程序，userExist会被赋值呢

> function *con() {
... var a = yield function() {
..... return 1;
..... }
... console.log(a);
... console.log('b');
... }
undefined
> con()
{}
> var a = con()
undefined
> a.next()
{ value: [Function], done: false }
> a.next()
undefined
b
{ value: undefined, done: true }

用node --harmony启动之后就一点反应也没有，首页也打不开

源码

这个源码能跑起来嘛，下下来之后跑不起来，已经将mongo的数据库建立连接起来，作者能不能发一份跑起来的源码给我和数据库建表的 谢谢

使用koa的时候报错

koa deprecated Support for generators will be removed in v3. See the documentation for examples of how to convert old middle
ware https://github.com/koajs/koa/blob/master/docs/migration.md index.js:5:5

错误信息是上面这样的，我打开那个链接想按照说明升级middleware，但是没看懂怎么弄，望大神指教

refresh session error: Cannot read property 'done' of undefined

 koa-generic-session:session session id not exist, generate a new one +10s
  koa-route GET /signup matches /signup [] +5ms

  koa-generic-session:session new session and do not modified +4ms
  koa-generic-session:session refresh session error: Cannot read property 'done' of undefined +1ms
  xxx GET /signup 500 13ms -

  TypeError: Cannot read property 'done' of undefined
      at next (/work/learn/learnkoa/node_modules/co/index.js:98:14)
      at onFulfilled (/work/learn/learnkoa/node_modules/co/index.js:69:7)
      at /work/learn/learnkoa/node_modules/co/index.js:54:5
      at Object.co (/work/learn/learnkoa/node_modules/co/index.js:50:10)
      at Object.toPromise (/work/learn/learnkoa/node_modules/co/index.js:118:63)
      at next (/work/learn/learnkoa/node_modules/co/index.js:99:29)
      at onFulfilled (/work/learn/learnkoa/node_modules/co/index.js:69:7)
      at process._tickCallback (internal/process/next_tick.js:103:7)

  <-- GET /favicon.ico
  koa-generic-session:session session id not exist, generate a new one +176ms
  koa-generic-session:session new session and do not modified +6ms
  koa-generic-session:session refresh session error: Cannot read property 'done' of undefined +0ms
  xxx GET /favicon.ico 500 8ms -

  TypeError: Cannot read property 'done' of undefined
      at next (/work/learn/learnkoa/node_modules/co/index.js:98:14)
      at onFulfilled (/work/learn/learnkoa/node_modules/co/index.js:69:7)
      at /work/learn/learnkoa/node_modules/co/index.js:54:5
      at Object.co (/work/learn/learnkoa/node_modules/co/index.js:50:10)
      at Object.toPromise (/work/learn/learnkoa/node_modules/co/index.js:118:63)
      at next (/work/learn/learnkoa/node_modules/co/index.js:99:29)
      at onFulfilled (/work/learn/learnkoa/node_modules/co/index.js:69:7)
      at process._tickCallback (internal/process/next_tick.js:103:7)

mac 笔记本，启动后 访问http://localhost:3000/signup

就会报上面的问题,

@nswbmw

关于 routerCacheConf 的配置应该更新下吧

7.1. 基础项目搭建 中default.js 关于 routerCacheConf 的配置应该更新下吧，koa-router-cache 的使用配置你都更新了

koa-generic-session set error: Cannot read property 'maxAge' of undefined

koa-generic-session 和 koa-generic-session-mongo 中相关的配置：
app.js

app.use(session({
  store: new MongoStore(config.mongodb)
}));

config/default.js

  mongodb: {
    url: 'mongodb://127.0.0.1:27017/club'
  },

每次post /signin 时候执行到
routes/signin.js

  this.session = {
    user: userInfo.name,
    email: userInfo.email
  };

就报错：

koa-generic-session set error: Cannot read property 'maxAge' of undefined
    at MongoStore.set$ (f:\Users\dev\bbs\node_modules\koa-generic-session-mongo\dist\store.js:195:33)
    at tryCatch (f:\Users\dev\bbs\node_modules\babel-runtime\regenerator\runtime.js:72:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (f:\Users\dev\bbs\node_modules\babel-runtime\regenerator\runtime.js:334:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (f:\Users\dev\bbs\node_modules\babel-runtime\regenerator\runtime.js:105:21)
    at onFulfilled (f:\Users\dev\bbs\node_modules\co\index.js:65:19)
    at f:\Users\dev\bbs\node_modules\co\index.js:54:5
    at Object.co (f:\Users\dev\bbs\node_modules\co\index.js:50:10)
    at Object.toPromise (f:\Users\dev\bbs\node_modules\co\index.js:118:63)
    at next (f:\Users\dev\bbs\node_modules\co\index.js:99:29)
    at onFulfilled (f:\Users\dev\bbs\node_modules\co\index.js:69:7)
    at f:\Users\dev\bbs\node_modules\co\index.js:54:5
    at Object.co (f:\Users\dev\bbs\node_modules\co\index.js:50:10)
    at Object.toPromise (f:\Users\dev\bbs\node_modules\co\index.js:118:63)
    at next (f:\Users\dev\bbs\node_modules\co\index.js:99:29)
    at onFulfilled (f:\Users\dev\bbs\node_modules\co\index.js:69:7)
    at f:\Users\dev\bbs\node_modules\co\index.js:54:5

windows开发环境，一直找不到原因，求助 @nswbmw

测试的问题

发现在发送post请求的时候，数据经过scheme检测数据类型。但是即使数据是错误的，仍然能通过

关于在heroku部署的问题？

我在本地调试成功了，但是部署到heroku的时候，访问地址出现下面的情况：

Application Error
An error occurred in the application and your page could not be served. 
Please try again in a few moments.

If you are the application owner, check your logs for details.

然后查看heroku logs（没有看懂），请教一下这是哪里除了问题？

heroku logs
2015-10-24T11:52:04.305187+00:00 heroku[api]: Enable Logplex by [e-mail]
2015-10-24T11:52:04.305187+00:00 heroku[api]: Release v2 created by [e-mail]
2015-10-24T11:55:22.335600+00:00 heroku[slug-compiler]: Slug compilation started
2015-10-24T11:55:22.335610+00:00 heroku[slug-compiler]: Slug compilation finished
2015-10-24T11:55:22.168034+00:00 heroku[api]: Scale to web=1 by [e-mail]
2015-10-24T11:55:22.244773+00:00 heroku[api]: Deploy e1c7aa8 by [e-mail]
2015-10-24T11:55:22.244773+00:00 heroku[api]: Release v3 created by [e-mail]
2015-10-24T11:55:23.126384+00:00 heroku[web.1]: Starting process with command `npm start`
2015-10-24T11:55:24.358943+00:00 app[web.1]: 
2015-10-24T11:55:24.358950+00:00 app[web.1]: > V-club@0.0.1 start /app
2015-10-24T11:55:24.358951+00:00 app[web.1]: > NODE_ENV=default DEBUG=* node --harmony app
2015-10-24T11:55:24.358952+00:00 app[web.1]: 
2015-10-24T11:55:24.905440+00:00 app[web.1]: module.js:338
2015-10-24T11:55:24.921552+00:00 app[web.1]: npm ERR! Linux 3.13.0-66-generic
2015-10-24T11:55:24.921935+00:00 app[web.1]: npm ERR! argv "/app/.heroku/node/bin/node" "/app/.heroku/node/bin/npm" "start"
2015-10-24T11:55:24.922128+00:00 app[web.1]: npm ERR! node v0.12.2
2015-10-24T11:55:24.922485+00:00 app[web.1]: npm ERR! npm  v2.7.4
2015-10-24T11:55:24.922642+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2015-10-24T11:55:24.922900+00:00 app[web.1]: npm ERR! Exit status 1
2015-10-24T11:55:24.922789+00:00 app[web.1]: npm ERR! V-club@0.0.1 start: `NODE_ENV=default DEBUG=* node --harmony app`
2015-10-24T11:55:24.923062+00:00 app[web.1]: npm ERR! 
2015-10-24T11:55:24.923132+00:00 app[web.1]: npm ERR! Failed at the V-club@0.0.1 start script 'NODE_ENV=default DEBUG=* node --harmony app'.
2015-10-24T11:55:24.923263+00:00 app[web.1]: npm ERR! This is most likely a problem with the V-club package,
2015-10-24T11:55:24.923372+00:00 app[web.1]: npm ERR! not with npm itself.
2015-10-24T11:55:24.905470+00:00 app[web.1]:     throw err;
2015-10-24T11:55:24.905471+00:00 app[web.1]:     ^
2015-10-24T11:55:24.923465+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:
2015-10-24T11:55:24.923668+00:00 app[web.1]: npm ERR! You can get their info via:
2015-10-24T11:55:24.923570+00:00 app[web.1]: npm ERR!     NODE_ENV=default DEBUG=* node --harmony app
2015-10-24T11:55:24.923773+00:00 app[web.1]: npm ERR!     npm owner ls V-club
2015-10-24T11:55:24.923882+00:00 app[web.1]: npm ERR! There is likely additional logging output above.
2015-10-24T11:55:24.926338+00:00 app[web.1]: npm ERR!     /app/npm-debug.log
2015-10-24T11:55:24.905474+00:00 app[web.1]:     at Function.Module._load (module.js:278:25)
2015-10-24T11:55:24.926238+00:00 app[web.1]: npm ERR! Please include the following file with any support request:
2015-10-24T11:55:24.925971+00:00 app[web.1]: 
2015-10-24T11:55:24.905473+00:00 app[web.1]:     at Function.Module._resolveFilename (module.js:336:15)
2015-10-24T11:55:24.905474+00:00 app[web.1]:     at Module.require (module.js:365:17)
2015-10-24T11:55:24.905476+00:00 app[web.1]:     at Module._compile (module.js:460:26)
2015-10-24T11:55:24.905472+00:00 app[web.1]: Error: Cannot find module 'gravatar'
2015-10-24T11:55:24.905475+00:00 app[web.1]:     at require (module.js:384:17)
2015-10-24T11:55:24.905477+00:00 app[web.1]:     at Object.Module._extensions..js (module.js:478:10)
2015-10-24T11:55:24.905476+00:00 app[web.1]:     at Object.<anonymous> (/app/theme/helpers/filters.js:1:78)
2015-10-24T11:55:24.905478+00:00 app[web.1]:     at Module.load (module.js:355:32)
2015-10-24T11:55:24.905478+00:00 app[web.1]:     at Function.Module._load (module.js:310:12)
2015-10-24T11:55:24.905479+00:00 app[web.1]:     at Module.require (module.js:365:17)
2015-10-24T11:55:24.917845+00:00 app[web.1]: 
2015-10-24T11:55:24.905480+00:00 app[web.1]:     at require (module.js:384:17)
2015-10-24T11:55:25.553391+00:00 heroku[web.1]: Process exited with status 1
2015-10-24T11:55:25.555369+00:00 heroku[web.1]: State changed from crashed to starting
2015-10-24T11:55:25.554197+00:00 heroku[web.1]: State changed from starting to crashed
2015-10-24T11:55:26.625822+00:00 heroku[web.1]: Starting process with command `npm start`
2015-10-24T11:55:28.830544+00:00 app[web.1]: 
2015-10-24T11:55:28.830562+00:00 app[web.1]: > V-club@0.0.1 start /app
2015-10-24T11:55:28.830564+00:00 app[web.1]: > NODE_ENV=default DEBUG=* node --harmony app
2015-10-24T11:55:28.830565+00:00 app[web.1]: 
2015-10-24T11:55:29.522872+00:00 app[web.1]: npm ERR! Linux 3.13.0-66-generic
2015-10-24T11:55:29.523269+00:00 app[web.1]: npm ERR! argv "/app/.heroku/node/bin/node" "/app/.heroku/node/bin/npm" "start"
2015-10-24T11:55:29.523470+00:00 app[web.1]: npm ERR! node v0.12.2
2015-10-24T11:55:29.523847+00:00 app[web.1]: npm ERR! npm  v2.7.4
2015-10-24T11:55:29.524185+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2015-10-24T11:55:29.524485+00:00 app[web.1]: npm ERR! V-club@0.0.1 start: `NODE_ENV=default DEBUG=* node --harmony app`
2015-10-24T11:55:29.524606+00:00 app[web.1]: npm ERR! Exit status 1
2015-10-24T11:55:29.524800+00:00 app[web.1]: npm ERR! 
2015-10-24T11:55:29.524927+00:00 app[web.1]: npm ERR! Failed at the V-club@0.0.1 start script 'NODE_ENV=default DEBUG=* node --harmony app'.
2015-10-24T11:55:29.525065+00:00 app[web.1]: npm ERR! This is most likely a problem with the V-club package,
2015-10-24T11:55:29.525181+00:00 app[web.1]: npm ERR! not with npm itself.
2015-10-24T11:55:29.525408+00:00 app[web.1]: npm ERR!     NODE_ENV=default DEBUG=* node --harmony app
2015-10-24T11:55:29.525296+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:
2015-10-24T11:55:29.525546+00:00 app[web.1]: npm ERR! You can get their info via:
2015-10-24T11:55:29.525657+00:00 app[web.1]: npm ERR!     npm owner ls V-club
2015-10-24T11:55:29.525786+00:00 app[web.1]: npm ERR! There is likely additional logging output above.
2015-10-24T11:55:29.527852+00:00 app[web.1]: 
2015-10-24T11:55:29.528170+00:00 app[web.1]: npm ERR! Please include the following file with any support request:
2015-10-24T11:55:29.528344+00:00 app[web.1]: npm ERR!     /app/npm-debug.log
2015-10-24T11:55:29.509126+00:00 app[web.1]: module.js:338
2015-10-24T11:55:29.509129+00:00 app[web.1]:     ^
2015-10-24T11:55:29.509128+00:00 app[web.1]:     throw err;
2015-10-24T11:55:29.509130+00:00 app[web.1]: Error: Cannot find module 'gravatar'
2015-10-24T11:55:29.509131+00:00 app[web.1]:     at Function.Module._resolveFilename (module.js:336:15)
2015-10-24T11:55:29.509131+00:00 app[web.1]:     at Function.Module._load (module.js:278:25)
2015-10-24T11:55:29.509132+00:00 app[web.1]:     at Module.require (module.js:365:17)
2015-10-24T11:55:29.509132+00:00 app[web.1]:     at require (module.js:384:17)
2015-10-24T11:55:29.509133+00:00 app[web.1]:     at Object.<anonymous> (/app/theme/helpers/filters.js:1:78)
2015-10-24T11:55:29.509133+00:00 app[web.1]:     at Module._compile (module.js:460:26)
2015-10-24T11:55:29.509134+00:00 app[web.1]:     at Object.Module._extensions..js (module.js:478:10)
2015-10-24T11:55:29.509134+00:00 app[web.1]:     at Module.load (module.js:355:32)
2015-10-24T11:55:29.509135+00:00 app[web.1]:     at Function.Module._load (module.js:310:12)
2015-10-24T11:55:29.519168+00:00 app[web.1]: 
2015-10-24T11:55:29.509135+00:00 app[web.1]:     at Module.require (module.js:365:17)
2015-10-24T11:55:29.509136+00:00 app[web.1]:     at require (module.js:384:17)
2015-10-24T11:55:30.259064+00:00 heroku[web.1]: State changed from starting to crashed
2015-10-24T11:55:30.256871+00:00 heroku[web.1]: Process exited with status 1
2015-10-24T11:55:47.462119+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=voidclub.herokuapp.com request_id=d94572b8-4a77-41a3-914a-c2136802c5dc fwd="158.199.193.222" dyno= connect= service= status=503 bytes=
2015-10-24T11:55:48.429317+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=voidclub.herokuapp.com request_id=efc8b77c-88ee-4140-bbce-43b1e4386d7b fwd="158.199.193.222" dyno= connect= service= status=503 bytes=

koa 生产环境日志一般怎么处理呢？

koa 生产环境日志一般怎么处理呢？。。。。求大神解答。直接写入文件?

请问你这个项目的flash是怎么传到ejs里的？

我自己在使用koa2搭建类似你这个项目
目前遇到的问题是不知道怎么把flash和session传到ejs
找了下，有人这么做的
res.locals.flash = req.flash();就可以在ejs里面用flash了
但是ctx.res已经没有locals了~
看你的代码也不知道究竟在哪里重定向
在ejs里引用也应该和koa1不同~

项目有用到redis吗？

找了半天没找到redis使用

直接访问首页没反应

在本地测试,node4.4,安装依赖,以node --harmony启动app,
访问localhost:3000/,一直在加载,

很不错的教程，发现了一个小小的BUG

登录之后看别人的帖子，右上角他人的信息中并没有出现添加好友的按钮了，未登录状态是有的

window开发环境下环境变量NODE_ENU不识别

NODE_ENU不是内部或外部的指令，也不是可运行的程序或批处理文件

只能实现部分功能

请问，这套源码只能实现注册、登录和发帖功能吗？
觉得我已经把环境配置好了，但是在实际运行时只有注册、登录和发帖功能可以实现（发帖功能还存在一些bug），查看帖子详细内容、查看个人信息、设置……这些功能据没有。
请问，这样是正常的吗？