nswbmw/N-blog学习笔记20171218

试学前端开发，这个教程不错，https://github.com/nswbmw/N-blog

跟着学习下，记录注意事项。

20171218：4.7.2注册页面按找步骤做完，运行出错，提示

"user is not defined"

routes(app)
// 设置模板全局常量
app.locals.blog = {
  title: pkg.name,
  description: pkg.description
}
// 添加模板必需的三个变量
app.use(function (req, res, next) {
  res.locals.user = req.session.user
  res.locals.success = req.flash('success').toString()
  res.locals.error = req.flash('error').toString()
  next()
})

这样写的顺序是错误的，必须把routes(app)这一句写到后面

// 设置模板全局常量
app.locals.blog = {
  title: pkg.name,
  description: pkg.description
}
// 添加模板必需的三个变量
app.use(function (req, res, next) {
  res.locals.user = req.session.user
  res.locals.success = req.flash('success').toString()
  res.locals.error = req.flash('error').toString()
  next()
})
// 路由
routes(app)