Question

我正在尝试在我自己的服务中使用knp_paginator，但我收到此错误

CheckExceptionOnInvalidReferenceBehaviorPass.php第58行中的ServiceNotFoundException：服务＆＃34; paginatorservice＆＃34;依赖于不存在的服务＆＃34; knp_paginator＆＃34;。

这是我的服务：

namespace CommonBundle\Service;

use Doctrine\ORM\EntityManager;

class PaginatorService
{

  public function paginate($query, $pageLimit, $pageNumber)
  {

    $paginator = $this->get('knp_paginator');
    $pagination = $paginator->paginate(
        $query,
        $request->query->getInt('page', $pageNumber),
        $pageLimit 
    );

    return $pagination;
  }

}

我的service.yml：

paginatorservice:
    class: CommonBundle\Service\PaginatorService
    arguments: 
        entityManager: [ "@doctrine.orm.entity_manager", "@knp_paginator "]

paginator在我的控制器中工作正常，但我想让它成为一个服务，所以我可以重用代码。

Answer 1

您应该将它们注入服务的__construct：

$private $em;
$private $paginator;
public function __contruct($em, $paginator){
   $this->em = $em;
   $this->$paginator = $paginator;
}

并改变：

paginatorservice:
    class: CommonBundle\Service\PaginatorService
    arguments: [ "@doctrine.orm.entity_manager", "@knp_paginator"]

希望它有所帮助。

Answer 2

我明白了。

我是service.yml我必须传递3个参数，＆＃39; entitymanager＆＃39;，＆＃39; knp_paginator＆＃39;和＆＃39; request_stack＆＃39;因为请求将在服务中使用。

paginatorservice:
    class: CommonBundle\Service\PaginatorService
    arguments: [ "@doctrine.orm.entity_manager", "@knp_paginator","@request_stack"]

我的服务类现在看起来像这样。

namespace CommonBundle\Service;

use Doctrine\ORM\EntityManager;
use Symfony\Component\HttpFoundation\RequestStack;

class PaginatorService
{

    private $em;
    private $paginator;
    protected $requestStack;

    public function __construct(EntityManager $em, $paginator,RequestStack $requestStack)
    {
        $this->em = $em;
        $this->paginator = $paginator;
        $this->requestStack = $requestStack;
    }

    public function paginate($query, $pageLimit, $pageNumber)
    {
        $request = $this->requestStack->getCurrentRequest();

        $pagination = $this->paginator->paginate(
            $query,
            $request->query->getInt('page', $pageNumber),
            $pageLimit 
        );

        return $pagination;
    }

}

在我自己的服务中使用knp_paginator

2 个答案: