如何在表单构建器symfony中添加获取容器？ [英] How Can I add get container in form builder symfony?

问题描述

如何在表单构建器symfony中添加get容器？

我想在表单构建器中使用$ get-> container ...

解决方案

将整个容器注入表单类型是一种不好的做法。请考虑仅向您的表单类型注入必需的依赖项。您可以简单将表单类型定义为服务并注入所需的依赖关系。

src / AppBundle / Form / TaskType.php

 使用Doctrine \\ \\ORM\EntityManagerInterface; 
 // ... 
 
类TaskType扩展AbstractType 
 {
 private $ em; 
 
 public function __construct（EntityManagerInterface $ em）
 {
 $ this-> em = $ em; 
} 
 
 // ... 
} 
  

src / AppBundle / Resources / config / services.yml

 服务：
 AppBundle \Form \TaskType ：
 arguments：['@ doctrine.orm.entity_manager'] 
标签：[form.type] 
  

---

要注入一个存储库类，有两种方法。第二种方法更干净。

注入EntityManager类并从EM获取存储库类：

  $ this-> em-> getRepository（User :: class）
  

将存储库类注册为服务使用EM工厂并将其注入到您的表单类型：

  services：
 AppBundle \ Repository \UserRepository： 
工厂：['@ doctrine.orm.entity_manager'，getRepository] ​​
参数：['AppBundle \Entity\User'] 
  

How Can I add get container in form builder symfony ?

I would like use $get->container in form builder...

解决方案

Injecting the whole container into a form type is a bad practice. Please consider injecting only required dependencies to your form type. You can simply define your form type as a service and inject required dependencies.

src/AppBundle/Form/TaskType.php

use Doctrine\ORM\EntityManagerInterface;
// ...

class TaskType extends AbstractType
{
    private $em;

    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
    }

    // ...
}

src/AppBundle/Resources/config/services.yml

services:
    AppBundle\Form\TaskType:
        arguments: ['@doctrine.orm.entity_manager']
        tags: [form.type]

---

To inject a repository class there are two ways. The second approach is more clean.

Inject an EntityManager class and get repository class from EM:

$this->em->getRepository(User::class)

Register repository class as a service using EM factory and inject it to your form type:

  services:
    AppBundle\Repository\UserRepository:
      factory: ['@doctrine.orm.entity_manager', getRepository]
      arguments: ['AppBundle\Entity\User']

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