examples/mvc/lib/boot.js

   1 'use strict'
   2
   3 /**
   4  * Module dependencies.
   5  */
   6
   7 var express = require('../../..');
   8 var fs = require('node:fs');
   9 var path = require('node:path');
  10
  11 module.exports = function(parent, options){
  12   var dir = path.join(__dirname, '..', 'controllers');
  13   var verbose = options.verbose;
  14   fs.readdirSync(dir).forEach(function(name){
  15     var file = path.join(dir, name)
  16     if (!fs.statSync(file).isDirectory()) return;
  17     verbose && console.log('\n   %s:', name);
  18     var obj = require(file);
  19     var name = obj.name || name;
  20     var prefix = obj.prefix || '';
  21     var app = express();
  22     var handler;
  23     var method;
  24     var url;
  25
  26     // allow specifying the view engine
  27     if (obj.engine) app.set('view engine', obj.engine);
  28     app.set('views', path.join(__dirname, '..', 'controllers', name, 'views'));
  29
  30     // generate routes based
  31     // on the exported methods
  32     for (var key in obj) {
  33       // "reserved" exports
  34       if (~['name', 'prefix', 'engine', 'before'].indexOf(key)) continue;
  35       // route exports
  36       switch (key) {
  37         case 'show':
  38           method = 'get';
  39           url = '/' + name + '/:' + name + '_id';
  40           break;
  41         case 'list':
  42           method = 'get';
  43           url = '/' + name + 's';
  44           break;
  45         case 'edit':
  46           method = 'get';
  47           url = '/' + name + '/:' + name + '_id/edit';
  48           break;
  49         case 'update':
  50           method = 'put';
  51           url = '/' + name + '/:' + name + '_id';
  52           break;
  53         case 'create':
  54           method = 'post';
  55           url = '/' + name;
  56           break;
  57         case 'index':
  58           method = 'get';
  59           url = '/';
  60           break;
  61         default:
  62           /* istanbul ignore next */
  63           throw new Error('unrecognized route: ' + name + '.' + key);
  64       }
  65
  66       // setup
  67       handler = obj[key];
  68       url = prefix + url;
  69
  70       // before middleware support
  71       if (obj.before) {
  72         app[method](url, obj.before, handler);
  73         verbose && console.log('     %s %s -> before -> %s', method.toUpperCase(), url, key);
  74       } else {
  75         app[method](url, handler);
  76         verbose && console.log('     %s %s -> %s', method.toUpperCase(), url, key);
  77       }
  78     }
  79
  80     // mount the app
  81     parent.use(app);
  82   });
  83 };