node.js - 如何在 express 应用程序中设置基于 Jade 的选项？ (使用 "basedir"和 "extends"路径需要 "absolute"选项)

Question

浏览 peepcode nodejs 视频并在当前 express/node 版本上重新创建应用程序，我遇到了一个小问题。

文件结构

site
 - apps
 - - authentication
 - - - views
 - - - - login.jade
 - - - routes.js
 - node_modules
 - public
 - - images
 - - javascripts
 - - stylesheets
 - routes
 - views
 app.js

login.jade:

extends /views/layout
block content
  form(action='/sessions', method='post')
    label
      | Username
      input(type='text', name='user')
    label
      | Password
      input(type='password', name='password')
    input(type='submit', name='submit')

app.js

var express = require('express')
  , user = require('./routes/user')
  , http = require('http')
  , path = require('path');

var app = express();

// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.set('view options', { basedir: process.env.__dirname})
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

require('./apps/authentication/routes')(app)

http.createServer(app).listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
});

当我导航到 localhost:3000/login 时，我收到以下错误:

Error: /Users/bob/code/site/apps/authentication/views/login.jade:1 
  > 1| extends /views/layout 
    2| block content
    3| form(action='/sessions', method='post')
    4| label

the "basedir" option is required to use "extends" with "absolute" paths

我可以将 extends 行更新为: extends ../../../views/layout 并使其工作，但我更想知道如何设置 basedir 选项。

Answer 1

你可以用这个:

app.locals.basedir = '/your/base/directory';

或者，使用较新的 Express 方法，

app.locals.basedir = path.join(__dirname, 'views');