Question

在名为controllers.js的文件中，我有这些变量：

var indexCtrl           = require('./index'),
    offerCtrl           = require('./offer'),
    setLocaleCtrl       = require('./setLocale'),
    specificationsCtrl  = require('./specifications');

和这个对象：

var routes = {
    indexCtrl: {
        'fr-FR' : '/accueil',
        'en-EN' : '/home',
        'de-DE' : '/startseite'
    },
    offerCtrl: {
        'fr-FR' : '/offre',
        'en-EN' : '/offer',
        'de-DE' : '/angebot'
    },
    setLocaleCtrl: {
        'fr-FR' : '/setLocale/:locale',
        'en-EN' : '/setLocale/:locale',
        'de-DE' : '/setLocale/:locale'
    },
    specificationsCtrl: {
        'fr-FR' : '/specifications',
        'en-EN' : '/specifications-en',
        'de-DE' : '/spezifikationen'
    }
};

例如，所需的index.js：

'use strict';

var IndexModel = require('../models/index');

exports.route = function(req, res, locale) {
  console.log(locale);
  var model = new IndexModel();
  res.render('index', model);
};

如何使用var route中定义的indexCtrl作为上面定义的indexCtrl（带有require）？

编辑：例如：

for (var ctrl in routes) {
    var ctrlContent = routes[ctrl];
    for (var language in ctrlContent) {
        var route = ctrlContent[language];
        //router.get(route, ctrl);
        console.log('%s, %s, %s', ctrl, language, route);
    }
}

日志显示：

indexCtrl, fr-FR, /accueil
indexCtrl, en-EN, /home
indexCtrl, de-DE, /startseite
offerCtrl, fr-FR, /offre
offerCtrl, en-EN, /offer
offerCtrl, de-DE, /angebot
setLocaleCtrl, fr-FR, /setLocale/:locale
setLocaleCtrl, en-EN, /setLocale/:locale
setLocaleCtrl, de-DE, /setLocale/:locale
specificationsCtrl, fr-FR, /specifications
specificationsCtrl, en-EN, /specifications-en
specificationsCtrl, de-DE, /spezifikationen

这样，我知道路由/accueil必须由控制器indexCtrl在语言环境fr-FR中呈现。但是如果我尝试使用ctrl.route - 例如在require中定义的indexCtrl.route-，我会收到错误：Route.get() requires callback functions but got a [object Undefined]。

Answer 1

看看你的问题，这可能会解决问题：

var indexCtrl           = require(routes.indexCtrl[language]),
    offerCtrl           = require(routes.offerCtrl[language]),
    setLocaleCtrl       = require(routes.setLocaleCtrl[language]),
    specificationsCtrl  = require(routes.specificationsCtrl[language]);

将var链接到对象属性

1 个答案: