在Symfony2中的每个请求设置Doctrine过滤器的参数 [英] Set parameter for Doctrine filter on every request in Symfony2

问题描述

我在Symfony2项目中有一个Doctrine过滤器。我试图将filter的参数设置为每个请求的某些值（取自会话）。
问题是，在Symfony的onKernelRequest事件之后创建过滤器对象，所以我无法从那里进行设置。如果我尝试在Doctrine的postConnect事件中设置循环依赖关系：

  ServiceCircularReferenceException：检测到服务的循环引用doctrine.orm .private_entity_manager，路径：routing.loader  - > assetic.asset_manager  - > twig  - > translator.default  - > doctrine.orm.private_entity_manager  - > doctrine.dbal.private_connection  - > year_visibility.parameter_setter。问题是，我应该设置过滤器的参数（或者更确切地说如何）？/ / code> 

b $ b

解决方案

您可以尝试手动定义过滤器并同时传递所需参数。

 服务：
 app.filter_manager：
类：App \Bundle\AppBundle\Filter\FilterManager 
参数：[@ doctrine.orm .entity_manager，@session] 
标签：
  -  {name：kernel.event_listener，event：kernel.request，方法：onKernelRequest} 
  

在过滤器管理器类中：

  // ... 
 
 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'））; 
} 
  




I have a Doctrine filter in Symfony2 project. I am trying to set filter's parameter to some value (taken from session) on every request. The problem is that filter object is created after Symfony's onKernelRequest event, so I can't set it from there. If I try to set it in Doctrine's postConnect event circular dependency is detected:

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".

The question is, where (or rather how) should I set filter's parameter?

解决方案

You can try to define filters manually and pass required parameters at the same time.

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 }

And in the filter manager class:

// ...

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'));
}  

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