vol.71は楽しい記事が多いなぁ～。
WEB+DB PRESSでSymfonyではじめるDIを読んだので実際に写経する。
■まずphpのバージョン確認（Composerの兼ね合いで。。）
$ php -v
PHP 5.3.3 (cli) (built: Jul 3 2012 16:40:30)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
■Composerのインストール
$ curl -s http://getcomposer.org/installer | php
#!/usr/bin/env php
Some settings on your machine may cause stability issues with Composer.
If you encounter issues, try to change the following:
Your PHP (5.3.3) is quite old, upgrading to PHP 5.3.4 or higher is recommended.
Composer works with 5.3.2+ for most people, but there might be edge case issues.
Downloading...
Composer successfully installed to: /path/symfony_DI/composer.phar
Use it: php composer.phar
バージョンで文句言われたけど無視。
■Composer用の設定ファイル作成
$ vim composer.json
{
"require":{
"symfony/dependency-injection": "2.1.*",
"symfony/config": "2.1.*",
"symfony/yaml": "2.1.*"
}
}
$ ll
total 632
drwxrwxr-x 2 takeuchi takeuchi 4096 Oct 31 15:21 ./
drwxrwxrwx 8 takeuchi takeuchi 4096 Oct 31 15:18 ../
-rw-rw-r-- 1 takeuchi takeuchi 118 Oct 31 15:21 composer.json
-rwxr-xr-x 1 takeuchi takeuchi 631264 Oct 31 15:18 composer.phar*
■依存パッケージの取得
$ php composer.phar install
Loading composer repositories with package information
Installing dependencies
- Installing symfony/dependency-injection (v2.1.3)
Downloading: 100%
- Installing symfony/config (v2.1.3)
Downloading: 100%
- Installing symfony/yaml (v2.1.3)
Downloading: 100%
Writing lock file
Generating autoload files
$ ll
total 644
drwxrwxr-x 3 takeuchi takeuchi 4096 Oct 31 15:23 ./
drwxrwxrwx 8 takeuchi takeuchi 4096 Oct 31 15:18 ../
-rw-rw-r-- 1 takeuchi takeuchi 118 Oct 31 15:21 composer.json
-rw-rw-r-- 1 takeuchi takeuchi 4939 Oct 31 15:23 composer.lock
-rwxr-xr-x 1 takeuchi takeuchi 631264 Oct 31 15:18 composer.phar*
drwxrwxr-x 4 takeuchi takeuchi 4096 Oct 31 15:23 vendor/
■依存のないクラスの実装とかそれ以降のコード
$ vim initial.php
namespace App{
class Controller{
private $memberRegistration;
private $router;
private $templating;
public function __construct(){
echo __METHOD__.PHP_EOL;
}
public function registerAction(){
echo __METHOD__.PHP_EOL;
$memberData=$this->getRequestData();
$this->memberRegistration->register($memberData);
$html=$this->templating->render('register');
return $html;
}
public function setMemberRegistration(\Domain\MemberRegistration $memberRegistration){
echo __METHOD__.PHP_EOL;
$this->memberRegistration=$memberRegistration;
}
public function setRouter(\App\Router $router){
echo __METHOD__.PHP_EOL;
$this->router=$router;
}
public function setTemplating(\App\Templating $templating){
echo __METHOD__.PHP_EOL;
$this->templating=$templating;
}
private function getRequestData(){
return array();
}
}
class Templating{
private $router;
public function __construct(){
echo __METHOD__.PHP_EOL;
}
public function render($templateName){
echo __METHOD__.PHP_EOL;
$url=$this->router->generateUrl('test');
}
//セッターインジェクション
public function setRouter(\App\Router $router){
$this->router=$router;
}
}
class Router{
public function __construct(){
echo __METHOD__.PHP_EOL;
}
public function generateUrl(){
echo __METHOD__.PHP_EOL;
}
}
}
namespace Domain{
class MemberRegistration{
public function __construct(){
echo __METHOD__.PHP_EOL;
}
public function register($memberData){
echo __METHOD__.PHP_EOL;
}
}
}
namespace{
require_once 'vendor/autoload.php';
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;
$container=new ContainerBuilder();
$container->register('app.controller', '\App\Controller')
->addMethodCall('setTemplating', array(new Reference('app.templating'),))
->addMethodCall('setRouter', array(new Reference('app.router'),))
->addMethodCall('setMemberRegistration', array(new Reference('domain.member_registration'),));
$container->register('app.templating', '\App\Templating')
->addMethodCall('setRouter', array(new Reference('app.router'),));
$container->register('app.router', '\App\Router');
$container->register('domain.member_registration', '\Domain\MemberRegistration');
$controller=$container->get('app.controller');
$controller->registerAction();
}
■実行結果
$ php initial.php
App\Controller::__construct
App\Templating::__construct
App\Router::__construct
App\Controller::setTemplating
App\Controller::setRouter
Domain\MemberRegistration::__construct
App\Controller::setMemberRegistration
App\Controller::registerAction
Domain\MemberRegistration::register
App\Templating::render
App\Router::generateUrl
このあとはYAMLにしたりダンプで再利用とか。
■参考URL
PHPの外部ライブラリの管理にComposerを使う
