在Symfony2的每个请求教义过滤器设置参数(Set parameter for Doctrine

2019-08-18 08:40发布

我在Symfony2的项目学说过滤器。 我试图过滤器的参数设置为每个请求一些值(从会议上作出)。 问题是,过滤对象的Symfony的onKernelRequest事件之后创建的,所以我不能在那里设置。 如果我尝试将其设置成学说的postConnect事件循环依赖检测:

ServiceCircularReferenceException: Circular reference detected for service "doctrine.orm.private_entity_manager", path: "routing.loader -> assetic.asset_manager -> twig -> translator.default -> doctrine.orm.private_entity_manager -> doctrine.dbal.private_connection -> year_visibility.parameter_setter".

现在的问题是,在(或者说如何)我应该设置过滤器的参数?

Answer 1:

您可以尝试手动定义过滤器和在同一时间传递所需的参数。

services:
    app.filter_manager:
        class: App\Bundle\AppBundle\Filter\FilterManager
        arguments: [@doctrine.orm.entity_manager, @session]
        tags:
            - { name: kernel.event_listener, event: kernel.request, method: onKernelRequest }

而在过滤器管理器类:

// ...

public function __construct(EntityManager $em, SessionInterface $session) 
{
    $this->em = $em;
    $this->session = $session;
}

// ...

public function onKernelRequest()
{
    $this->em->getConfiguration()->addFilter('filter_name', 'Filter/Class/Name/With/Ns');

    $filter = $this->em->getFilters()->enable('filter_name');
    $filter->setParameter('param_name', $this->session->get('param_name'));
}  


Answer 2:

正如在这里看到: https://stackoverflow.com/a/14650403/244058 ,

你可以在内核引导有你的过滤器类的一个实例。 所以,你的情况是可以非常早。

<?php

class MyBundle extends Bundle 
{
    public function boot()
    {
        $em = $this->container->get('doctrine.orm.default_entity_manager');
        $conf = $em->getConfiguration();
        $conf->addFilter(
            'filter_name',
            'Doctrine\Filter\TestFilter'
        );

        // either enable it here, or later in the event listener
        $em->getFilters()->enable('filter_name');
    }
}

之后,只需添加上侦听kernel.event_listener kernel.request并设置过滤器参数(像这样):

<?php

class DoctrineSqlFilterConfigurator
{
    private $em; // inject the entity manager somehow (ctor is a good idea)

    public function onKernelRequest(GetResponseEvent $event)
    {
        $filter = $this->em->getFilters()->enable('filter_name');
        $filter->setParameter('param_name', $event->getRequest()->getSession()->get('param_name'));
    }
}


文章来源: Set parameter for Doctrine filter on every request in Symfony2