装饰(修改)一个Service
/htdocs/engine/Shopware/Bundle/StoreFrontBundle/Service/Core/ListProductService.php
可以在上面路径中找到ListProductService.php
文件 ==> 该 service 已存在。
定义该service的xml配置文件在/htdocs/engine/Shopware/Bundle/StoreFrontBundle/services.xml
。在这里面看到ListProductService.php被定义,如下:
<service id="shopware_storefront.list_product_service"
class="Shopware\Bundle\StoreFrontBundle\Service\Core\ListProductService">
<argument type="service" id="shopware_storefront.list_product_gateway"/>
<argument type="service" id="shopware_storefront.graduated_prices_service"/>
<argument type="service" id="shopware_storefront.cheapest_price_service"/>
<argument type="service" id="shopware_storefront.price_calculation_service"/>
<argument type="service" id="shopware_storefront.media_service"/>
<argument type="service" id="shopware_storefront.marketing_service"/>
<argument type="service" id="shopware_storefront.vote_service"/>
<argument type="service" id="shopware_storefront.category_service" />
<argument type="service" id="config" />
</service>
我们自己定义的services.xml这样写:
属性id是新建的service的id,而decorate中是将要被修改的service的id。
这句代码的功能为:告诉服务器将用swag_example.list_product_service
代替 id 为shopware_storefront.list_product_service
的service。而旧的service通过<argument>
被重命名为swag_example.list_product_service.inner
,通过这种办法将旧的service注入到我们新建的service中。
注意:这里的
<argument>
的id的命名基于新service的id,但有一定自由度,你也可以命名为比如swag_example.list_product_service.wooz
<?xml version="1.0" ?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<services>
<service id="swag_example.list_product_service"
class="SwagExample\Bundle\StoreFrontBundle\ListProductService"
decorates="shopware_storefront.list_product_service"
public="false">
<argument type="service" id="swag_example.list_product_service.inner"/>
</service>
</services>
</container>```
更多关于service decorate的信息
这里相关的修改已经涉及到Symfony的知识点,跟多相关接下来对该service进行修改。
<?php
namespace SwagExample\Bundle\StoreFrontBundle;
// 引用需要用到的两个接口(这两个接口在原本的ListProductService.php中就有被引用,原文件中有许多许多被引用的文件,但这里只引用我们需要的)
use Shopware\Bundle\StoreFrontBundle\Service\ListProductServiceInterface;
use Shopware\Bundle\StoreFrontBundle\Struct\ProductContextInterface;
class ListProductService implements ListProductServiceInterface
{
private $service;
public function __construct(ListProductServiceInterface $service)
{
$this->service = $service;
}
public function getList(array $numbers, ProductContextInterface $context)
{
$products = $this->service->getList($numbers, $context);
//...
return $products;
}
public function get($number, ProductContextInterface $context)
{
return array_shift($this->getList([$number], $context));
}
}
到这里service decoration的内容告一段落 END
#### 实例
SwagSloganOfTheDay
├── Resources
│ └── services.xml xml为配置文件; 该文件中可新定义services; 或重写 / 修改核心service
├──SloganPrinter.php
├──RouteSubscriber.php
└──SwagSloganOfTheDay.php 主php文件,入口文件; 包含安装 / 卸载函数; 调用service.xml中的services
在shopware新的插件系统中,我们可以在services.xml中利用service的`tag`标签添加subscriber ==> 通过这种方式,Shopware能够自动加载所有事件监听器(event subscriber)而不用再手动声明。
> service的 `tag` 标签该service用于某个特定目的(specific purpose)
<?xml version="1.0" ?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<services>
<service id="swag_slogan_of_the_day.subscriber.route" class="SwagSloganOfTheDay\Subscriber\Route">
<argument type="service" id="swag_slogan_of_the_day.slogan_printer" />
<tag name="shopware.event_subscriber" />
</service>
<service id="swag_slogan_of_the_day.slogan_printer" class="SwagSloganOfTheDay\SloganPrinter">
<argument type="service" id="dbal_connection" />
</service>
</services>
</container>```
注册带tpl的Controller
首先在插件的主php文件中注册controller:
<?php
namespace SwagControllerExample;
use Shopware\Components\Plugin;
class SwagControllerExample extends Plugin
{
/**
* @inheritdoc
*/
public static function getSubscribedEvents()
{
return [
'Enlight_Controller_Dispatcher_ControllerPath_Frontend_MyController' => 'registerController',
];
}
// 注册控制器
public function registerController(\Enlight_Event_EventArgs $args)
{
// 获取模板文件路径
$this->container->get('template')->addTemplateDir(
$this->getPath() . '/Resources/views/'
);
return $this->getPath() . '/Controllers/Frontend/MyController.php';
}
}
编写的插件中,Controller需要放在固定路径下:SwagControllerExample/Controllers/(Backend|Frontend|Widgets|Api)/MyController.php
Controller的命名也需要遵守规则。在Controller的preDispatch()方法中,我们完成了模板template的注册。
class Shopware_Controllers_Frontend_MyController extends \Enlight_Controller_Action
{
public function preDispatch()
{
$pluginPath = $this->container->getParameter('swag_controller_example.plugin_dir');
// 添加模板路径
$this->get('template')->addTemplateDir($pluginPath . '/Resources/views/');
$this->get('snippets')->addConfigDir($pluginPath . '/Resources/snippets/');
}
}```