我试图访问一个EventListener中的doctrine来测试一个数据库表,如果它无效,那么用户将被重定向到一个配置页面,他将在那里修复问题!
测试将在每次调用控制器之前执行,因此我将使用Event kernel.controller:
[已编辑:已解决,TESTNG和重定向VERRY FINE]
<?php
namespace AdminBundle\EventListener;
use Symfony\Bundle\FrameworkBundle\Routing\Router;
use Doctrine\ORM\EntityManager;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Session\Session;
class BuildReferencesEventListener
{
/**
* @var EntityManager
*/
protected $em;
/**
* @var Router
*/
protected $router;
protected $references = [
1 => 'oxygen',
2 => 'pH',
3 => 'pCO2'
];
protected $redirect_route = 'references';
protected $requestStack;
protected $session;
public function __construct(EntityManager $entityManager, Router $router, RequestStack $requestStack, Session $session)
{
$this->em = $entityManager;
$this->router = $router;
$this->requestStack = $requestStack;
$this->session = $session;
}
public function onKernelController()
{
$em = $this->em;
$savedReferences = $em->getRepository('AdminBundle:ParamReference')->findAll();
$references = $this->references;
if (count($savedReferences) <= 0){
$this->redirect();
}
for ($i =0; $i<count($savedReferences); $i++){
if ($savedReferences[$i] !== $references[$i]) {
$this->redirect();
}
}
}
public function redirect()
{
$request = $this->requestStack->getCurrentRequest();
$route = $request->get('_route');
$this->session->getFlashBag()->add('warning', 'You need to setup the references for the parameters before starting the work');
if ($route != 'references'){
$url = $this->router->generate('references');
$redirect = new RedirectResponse($url);
$redirect->send();
}
}
}
这是services.yml
build.references:
class: AdminBundle\EventListener\BuildReferencesEventListener
arguments: ['@doctrine.orm.entity_manager', '@router', '@request_stack', '@session']
tags:
- { name: kernel.event_listener, event: kernel.controller, method: onKernelController }
2 回答
在Symfony 3.4及更高版本中,默认情况下启用自动装配,因此您只需向服务的构造函数方法添加类型提示参数,并将私有属性添加到参数值 .
如果需要显式声明参数,可以在服务配置中执行此操作:
这可能对传递服务容器不知道的参数很有用 .
要了解有关服务容器的更多信息,请https://symfony.com/doc/3.4/service_container.html#injecting-services-config-into-a-service .
在service.yml事件列表服务部分中添加参数
并在列表器中添加此__cunstruct代码: