node.js中Jade模板的全局变量

Question

我使用node.js和Jade模板系统。

假设，我有以下路由规则：

// ./routes/first.js
exports.first = function(req, res)
{
    res.render('first', {
        author: 'Edward',
        title: 'First page'
    });
};
// ./routes/second.js
exports.second = function(req, res)
{
    res.render('second', {
        author: 'Edward',
        title: 'Second page'
    });
};

这些伪视图：

// ./views/first.jade
html
    head
        title #{author} – #{title}
    body
        span First page content
// ./views/second.jade
html
    head
        title #{author} – #{title}
    body
        span Second page content

对于这两个视图，我如何一般地声明author变量？

Answer 1

// ./author.js
module.exports = 'Edward';
// ./routes/first.js
exports.first = function(req, res)
{
    res.render('first', {
        author: require('../author'),
        title: 'First page'
    });
};
// ./routes/second.js
exports.second = function(req, res)
{
    res.render('second', {
        author: require('../author'),
        title: 'Second page'
    });
};

或

// ./views/includes/head.jade
head
    title Edward – #{title}
// ./views/first.jade
html
    include includes/head
    body
        span First page content
// ./views/second.jade
html
    include includes/head
    body
        span Second page content

或

// ./views/layout.jade
html
    head
        title Edward – #{title}
    body
        block body
// ./views/first.jade
extends layout
append body
    span First page content
// ./views/second.jade
extends layout
append body
    span Second page content