我正在使用dynamicHelpers在Express 2的每个页面上设置一些变量.现在它们已经消失,我不知道该怎么做.使用Express 3做这样的事情的最佳方法是什么？
app.js
app.dynamicHelpers( require('dynamicHelpers') )
dynamicHelpers.js
exports.user = function(req,res) {
return req.user || {};
}
exports.message = function(req,res) {
return req.flash.message || {};
}
在veiw.jade
h1= user.username
解决方法
中间件示例
var app = require('express')(),jade = require('jade')
app.set('views',__dirname + '/views')
app.set('view engine','jade')
app.use(function(req,res,next){
res.locals.user = { name : "test" }
next()
})
app.get('*',function(req,res){
res.render('index.jade')
})
app.listen('8001')
index.jade
!!! 5
html
body
div hello #{user.name}
使用req.flash尝试：
var app = require('express')(),'jade')
app.use(require('connect-flash')())
// Expose the flash function to the view layer
app.use(function(req,next) {
res.locals.flash = req.flash.bind(req)
next()
})
app.get('*',res){
res.render('index.jade')
})
app.listen('8001')
更新了我的答案,尚未迁移到3.0,在https://github.com/visionmedia/express/wiki/Migrating-from-2.x-to-3.x下查看选项：
The "view options" setting is no longer necessary,app.locals are the local variables
merged with res.render()'s,so app.locals.pretty = true is the same as passing
res.render(view,{ pretty: true }).
