dependency-injection - 如何在 TYPO3 Extbase 扩展中包含或自动加载外部库？ + 依赖注入(inject)？

Question

我正在使用 Extbase 1.4 开发一个 TYPO3 4.6 扩展，并且我试图包含一个外部库。图书馆，在我的例子中是 facebook PHP SDK , 在 $_EXTKEY/Resources/PHP/facebook-php-sdk/facebook.php 下.我希望库在我需要的地方自动加载并自动注入(inject)(Dependecy Injection)。

我在网上找到的一些评论建议应该包含带有 require_once() 的库:

http://forge.typo3.org/issues/33142

1. if it's just a tiny helper library, it's intended to be stored in {PackageRoot}/Resources/PHP/{libraryName} and just included via require. is this suspected by the problem however?
2. if the FLOW3 package mainly represents the foreing library at all, like it's the case in Imagine or Swift package, the library code is put below {PackageRoot}/Classes directly."

http://lists.typo3.org/pipermail/typo3-project-typo3v4mvc/2011-July/009946.html

"I would include the class (using require_once) from within a specific action to handle this. That way you have access over those functions and the class becomes your library."

我试过了，它的工作原理是这样的:

<?php
require_once( t3lib_extMgm::extPath('extkey') . 'Resources/PHP/facebook-php-sdk/facebook.php');

class Tx_WsLogin_Domain_Repository_FacebookUserRepository extends Tx_WsLogin_Domain_Repository_UserRepository {

protected $facebook;

public function __construct() {
    $this->setFacebook(new Facebook(array(
        'appId' =>'',
        'secret' => '')
    ));
    parent::__construct();
}

public function setFacebook(Facebook $facebook) {
    $this->facebook = $facebook;
}


public function sampleFunction() {
    $userId = $this->facebook->getUser();
}

}
?>

但是我怎样才能让它自动加载并使用 injectFacebook 函数自动注入(inject)库呢？

编辑:

点赞@alex_schnitzler和 @sorenmalling提到自动加载:

@PeterTheOne Put all the files inside ext_autoload.php and then use DI or the object manager.

@PeterTheOne put the class definition into ext_autoload.php in your extension?

我试过这样(文件:ext_autoload.php):

<?php

$extPath = t3lib_extMgm::extPath('extKey');

return array(
    'facebook' => $extPath . 'Resources/PHP/facebook-php-sdk/facebook.php',
);

?>

它似乎找到并包含正确的文件。但是当我尝试使用用户依赖注入(inject)(如 peter answered )时，我收到一个错误:

not a correct info array of constructor dependencies was passed!

InvalidArgumentException thrown in file /var/syscp/webs/web1/dev/typo3_src-4.5.15/typo3/sysext/extbase/Classes/Object/Container/Container.php in line 247.

我认为这是因为 Facebook 类的构造函数有一个必需的 $config 参数。

编辑2:

在 @alex_schnitzler 的帮助下，我做了彼得在回答中所说的。和 @sorenmalling ，谁将我指向 ObjectManager，我的 FacebookService 现在看起来像这样:

class Tx_Extkey_Service_FacebookService implements t3lib_Singleton {

/**
* @var Tx_Extbase_Object_ObjectManagerInterface
*/
protected $objectManager;

/**
 * Facebook from @link https://github.com/facebook/facebook-php-sdk facebook-php-sdk
 *
 * @var Facebook
 */
protected $facebook;

/**
* @param Tx_Extbase_Object_ObjectManagerInterface $objectManager
*/
public function injectObjectManager(Tx_Extbase_Object_ObjectManagerInterface $objectManager) {
    $this->objectManager = $objectManager;
}

/**
 * 
 */
public function initializeObject() {
    $this->facebook = $this->objectManager->create(
        'Facebook',
        array(
            'appId' =>'input appId here',
            'secret' => 'input app secret here'
        )
    );
}

/**
 * @return Facebook
 */
public function getFacebook() {
    return $this->facebook;
}

}

如需更多帮助，请阅读:http://forge.typo3.org/projects/typo3v4-mvc/wiki/Dependency_Injection_(DI)关于 的部分初始化对象() 和 通过对象管理器创建原型(prototype)对象

Answer 1

首先在扩展根文件夹中创建 ext_autoload.php

并添加您的代码，它包含以键为类名的一维数组(类名必须以扩展键为前缀)和值作为文件的路径。
确保清除您的网站

<?php

    $extensionPath = \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath('rent_system');
    return array(   
        'rent_system_TCPDF' => $extensionPath.'Resources/Private/PHP/tcpdf/tcpdf.php',  
    );
?>

在 Controller 文件中

$pdf = $this->objectManager->create('rent_system_TCPDF');