Symfony -优化表单重复EntityType

Question

目前我正在开发的网站是运行Symfony 3.4。

我的一个实体是Contact:我得到一个非常大的MySQL表，有~ 14000行联系人配置文件:

姓名电子邮件电话号码

分配
Brand Peter	[e-mail]	49594885403	Bla blabla
…	…	…	…

这样做的一种方法是创建一个属性$clientChoices，在其中一次性存储您的repo->getAll()结果。为此，您必须将表单定义为服务:https://symfony.com/doc/3.4/form/form_dependencies.html.

然后注入EntityManager以在构造函数中获得所需的内容，如下所示:

<?php
namespace AppBundleForm;
/*****
** Here all my others 'use'
*****/
use AppBundleEntityContact;
use AppBundleRepositoryContactRepository;
class EventForm
{
private $clientChoices = [];
public function __constructor(EntityManagerInterface $entityManager)
{
$this->clientChoices = $entityManager->getRepository(Client::class)->getAll();
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder

// A lot of ->add(), not revelant for my issue

->add('client1', EntityType::class, [
'class' => Client::class,
'choices' => $this->clientChoices,
])

->add('client2', EntityType::class, [
'class' => Client::class,
'choices' => $this->clientChoices,
}
])

// ->add('client3'), same as above
// ->add('client4'), same as above
// ->add('client5'), same as above
// ->add('client6'), same as above
;
}