我想知道是否有内置的方法来扩展Express.js的res.render函数,因为我想将一组默认的“locals”传递给每个呈现的模板。目前我编写了一个小型中间件,它使用underscore.js的扩展函数来合并默认的“locals”和特定于该模板的“locals”:
app.use(function(req, res, next){
res.render2 = function (view, locals, fn) {
res.render(view, _.extend(settings.template_defaults, locals), fn);
};
next();
});
有更好的方法吗?
答案 0 :(得分:7)
app.locals
可能就是你要找的东西:
app.locals(settings.template_defaults);
与res.locals
和res.render
一起,Express已经能够为您合并价值:
// locals for all views in the application
app.locals(settings.template_defaults);
// middleware for common locals with request-specific values
app.use(function (req, res, next) {
res.locals({
// e.g. session: req.session
});
next();
});
// and locals specific to the route
app.get('...', function (req, res) {
res.render('...', {
// ...
});
});
答案 1 :(得分:3)
res.locals or app.locals is for this exact purpose.