裝飾(修改)一個Service
/htdocs/engine/Shopware/Bundle/StoreFrontBundle/Service/Core/ListProductService.php
可以在上面路徑中找到ListProductService.php文件 ==> 該 service 已存在。
定義該service的xml配置文件在/htdocs/engine/Shopware/Bundle/StoreFrontBundle/services.xml。在這里面看到ListProductService.php被定義,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>
我們自己定義的services.xml這樣寫:
屬性id是新建的service的id,而decorate中是將要被修改的service的id。
這句代碼的功能為:告訴服務(wù)器將用swag_example.list_product_service代替 id 為shopware_storefront.list_product_service的service。而舊的service通過<argument>被重命名為swag_example.list_product_service.inner,通過這種辦法將舊的service注入到我們新建的service中。
注意:這里的
<argument>的id的命名基于新service的id,但有一定自由度,你也可以命名為比如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>```
更多關(guān)于service decorate的信息
這里相關(guān)的修改已經(jīng)涉及到Symfony的知識點,跟多相關(guān)接下來對該service進(jìn)行修改。
<?php
namespace SwagExample\Bundle\StoreFrontBundle;
// 引用需要用到的兩個接口(這兩個接口在原本的ListProductService.php中就有被引用,原文件中有許多許多被引用的文件,但這里只引用我們需要的)
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));
}
}
到這里service decoration的內(nèi)容告一段落 END
#### 實例
SwagSloganOfTheDay
├── Resources
│ └── services.xml xml為配置文件; 該文件中可新定義services; 或重寫 / 修改核心service
├──SloganPrinter.php
├──RouteSubscriber.php
└──SwagSloganOfTheDay.php 主php文件,入口文件; 包含安裝 / 卸載函數(shù); 調(diào)用service.xml中的services
在shopware新的插件系統(tǒng)中,我們可以在services.xml中利用service的`tag`標(biāo)簽添加subscriber ==> 通過這種方式,Shopware能夠自動加載所有事件監(jiān)聽器(event subscriber)而不用再手動聲明。
> service的 `tag` 標(biāo)簽該service用于某個特定目的(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>```
注冊帶tpl的Controller
首先在插件的主php文件中注冊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',
];
}
// 注冊控制器
public function registerController(\Enlight_Event_EventArgs $args)
{
// 獲取模板文件路徑
$this->container->get('template')->addTemplateDir(
$this->getPath() . '/Resources/views/'
);
return $this->getPath() . '/Controllers/Frontend/MyController.php';
}
}
編寫的插件中,Controller需要放在固定路徑下:SwagControllerExample/Controllers/(Backend|Frontend|Widgets|Api)/MyController.php
Controller的命名也需要遵守規(guī)則。在Controller的preDispatch()方法中,我們完成了模板template的注冊。
class Shopware_Controllers_Frontend_MyController extends \Enlight_Controller_Action
{
public function preDispatch()
{
$pluginPath = $this->container->getParameter('swag_controller_example.plugin_dir');
// 添加模板路徑
$this->get('template')->addTemplateDir($pluginPath . '/Resources/views/');
$this->get('snippets')->addConfigDir($pluginPath . '/Resources/snippets/');
}
}```