我的服务中的渲染视图 [英] RenderView in My service
问题描述
我是 symfony 世界的新手.我想在我的服务中使用渲染,但出现此错误
I'm new of symfony world. I want to use render inside my service, but I got this error
调用未定义的方法 renderView
Call to undefined method renderView
我知道renderView是
I know that renderView is shortcut of
/**
* Returns a rendered view.
*
* @param string $view The view name
* @param array $parameters An array of parameters to pass to the view
*
* @return string The rendered view
*/
public function renderView($view, array $parameters = array())
{
return $this->container->get('templating')->render($view, $parameters);
}
但我不知道我必须在我的服务中注入什么.我什至知道使用 php app/console container:debug
命令我可以看到我所有可用的服务,但我不知道如何选择/选择正确的
But I don't know what I have to Injection in my service. I know even that with php app/console container:debug
command I Can see all my services available, but I don't know how can take/choose the correct
更新
我尝试添加
arguments: [@mailer,@templating]
但是我得到了 ServiceCircularReferenceException
更新
我用
arguments: [@service_container]
甚至我的服务
$email = $this->service_container->get('mailer');
$twig = $this->service_container->get('templating');
使用服务邮件(swift)和渲染.
for use service Mail (swift) and render.
我认为这不是最好的解决方案.我只想注入 mailer
和 templating
I don't think that it's best solution. I'd like to injection Only mailer
and templating
更新后杰森的回答我正在使用 Symfony 2.3
UPDATE After Jason's answer I'm using Symfony 2.3
我的 services.yml
my services.yml
services:
EmailService:
class: %EmailService.class%
arguments: [@mailer,@templating,%EmailService.adminEmail%]
我收到了这个 ServiceCircularReferenceException
推荐答案
您对 renderView()
的看法是正确的,它只是控制器的快捷方式.当使用服务类并注入模板服务时,您所要做的就是将函数更改为 render()
.所以代替
You are correct about renderView()
, it's only a shortcut for Controllers. When using a service class and inject the templating service, all you have to do is change your function to render()
instead. So instead of
return $this->renderView('Hello/index.html.twig', array('name' => $name));
你会使用
return $this->render('Hello/index.html.twig', array('name' => $name));
来自 Olivia 回复的更新:
如果您遇到循环引用错误,解决它们的唯一方法是注入整个容器.这不被视为最佳实践,但有时无法避免.当我不得不求助于这个时,我仍然在构造函数中设置我的类变量,这样我就可以像直接注入一样行事.所以我会这样做:
If you are getting circular reference errors, the only way around them is to inject the whole container. It's not considered best practice but it sometimes cannot be avoided. When I have to resort to this, I still set my class variables in the constructor so I can act as if they were injected directly. So I will do:
use Symfony\Component\DependencyInjection\ContainerInterface;
class MyClass()
{
private $mailer;
private $templating;
public function __construct(ContainerInterface $container)
{
$this->mailer = $container->get('mailer');
$this->templating = $container->get('templating');
}
// rest of class will use these services as if injected directly
}
旁注,我刚刚在 Symfony 2.5 中测试了我自己的独立服务,并没有通过直接注入邮件程序和模板服务收到循环引用.
Side note, I just tested my own standalone service in Symfony 2.5 and did not receive a circular reference by injecting the mailer and templating services directly.
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