我正在为我的模型实现ACL系统,我想将公共代码提取到一个常见的Helper类中。我找不到任何关于如何正确做这样的事情的例子,但我经常发现需要这样做。
例如,让我们说在我的控制器中我有一大堆代码(直接来自文档):
// creating the ACL
$aclProvider = $this->get('security.acl.provider');
$objectIdentity = ObjectIdentity::fromDomainObject($asset);
$acl = $aclProvider->createAcl($objectIdentity);
// retrieving the security identity of the currently logged-in user
$securityContext = $this->get('security.context');
$user = $securityContext->getToken()->getUser();
$securityIdentity = UserSecurityIdentity::fromAccount($user);
// grant owner access
$acl->insertObjectAce($securityIdentity, MaskBuilder::MASK_OWNER);
$aclProvider->updateAcl($acl);
我更愿意拥有以下内容:
$this->get('my_helpers')->bindUserToObject($asset, MaskBuilder::MASK_OWNER);
我应该如何实施'my_helpers'服务?我很确定这将是一项服务,但我仍然觉得“服务”的概念有点令人困惑。
答案 0 :(得分:7)
好的,出于某种原因,在这里定义我的问题的过程帮助我解决了如何做到这一点。我确实创建了一项服务。
class AclHelper {
protected $aclProvider;
protected $securityContext;
protected $logger;
public function __construct(MutableAclProvider $aclProvider, $securityContext, $logger) {
$this->aclProvider = $aclProvider;
$this->securityContext = $securityContext;
$this->logger = $logger;
}
public function bindUserToObject($object, $mask) {
// creating the ACL
$objectIdentity = ObjectIdentity::fromDomainObject($object);
$acl = $aclProvider->createAcl($objectIdentity);
// retrieving the security identity of the currently logged-in user
$user = $this->securityContext->getToken()->getUser();
$securityIdentity = UserSecurityIdentity::fromAccount($user);
// grant owner access
$acl->insertObjectAce($securityIdentity, $mask);
$aclProvider->updateAcl($acl);
}
}
然后我将它添加到我的services.yml文件中:
parameters:
acl_helper.class: GC\DashboardBundle\Services\AclHelper
services:
acl_helper:
class: %acl_helper.class%
arguments: [@security.acl.provider, @security.context, @logger]
现在在我的控制器中,我所要做的就是:
$this->get('acl_helper')->bindUserToObject($object, MaskBuilder::MASK_OWNER);
答案 1 :(得分:1)
有一个bundle:)。
答案 2 :(得分:0)
你是对的,你必须创建一项服务
您可以在the official documentation中找到有关服务和服务容器的更多信息。