Accessing res.locals from Backbone.Router templates

问题

I've been working on a very basic nodejs problem for way too long at this point and I'm stuck. Others have asked similar questions but for some reason the answers don't seem to work for me.

Background:

I'm just ramping up with NodeJS with Express, Backbone, & Passport for auth. Passport stores the user object in the request so I'm trying to pass it up to my Backbone views.

I've been using the Node Cellar project as a starting point and have followed their lead in displaying most of my views via Backbone.Router.extend.

What I'm trying to do:

I just want to pass the user object to a view and display, e.g. a name in my template.

What I've tried:

I'm using middleware similar to the below to pass my user to the model

app.use(function(req, res, next){
   res.locals.user = req.user;
   next();
});

When I use app.get directly I'm able to confirm that this works:

app.get('/test',function index(req, res) {
    res.send(res.locals.user);
});

However, if I include the following in my HeaderView.html file everything breaks down (even if I can confirm user is defined via app.get):

<%= user === null ? "No user" : user %> (or user.name.familyName, etc.)

I get the following error in the console:

Uncaught ReferenceError: user is not defined

Here's what my main.js looks like:

var AppRouter = Backbone.Router.extend({
    routes: {
        "home"               : "home"  
    },

initialize: function () {
    this.headerView = new HeaderView();
    $('.header').html(this.headerView.el);

    var footerView = new FooterView();
    $('#footer').html(footerView.el);
},

home: function (id) {
    if (!this.homeView) {
        this.homeView = new HomeView();
    }
    $('#content').html(this.homeView.el);
},

});

utils.loadTemplate(['HomeView'], function() {
    app = new AppRouter();
    Backbone.history.start();
});

Here's how I'm setting up express:

app.set('port', process.env.PORT || 3000);
app.use(express.logger('default'));  /* 'default', 'short', 'tiny', 'dev' */
app.use(express.bodyParser()),
app.use(express.static(path.join(config.root, 'public')));
app.use(express.cookieParser('optional secret string'));
app.use(express.session({ secret: 'my secret secret key' }));
app.use(passport.initialize());
app.use(passport.session());

Any thoughts?

回答1:

I withdraw my preview answer, as it was shortsighted :)

It looks like you can find your answer here: ExpressJS 3.0 How to pass res.locals to a jade view?

hth,
Aaron

来源：https://stackoverflow.com/questions/19150826/accessing-res-locals-from-backbone-router-templates