Symfony UniqueEntity在更新现有实体时显示错误
问题描述 投票：1回答：3
我有一个非常简单的实体，具有UniqueEntity验证：
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;
use Doctrine\ORM\Mapping\ManyToOne;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Doctrine\ORM\Mapping\HasLifecycleCallbacks;
/**
* @ORM\Entity(repositoryClass="App\Repository\UserRepository")
* @UniqueEntity("email", message="Email already in use")
*
*
*/
class User implements UserInterface
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @ORM\Column(type="string", length=180, unique=true)
*/
private $email;
表单（故意删除了所有其他表单字段）
namespace App\Form;
use App\Entity\Company;
use App\Entity\User;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\CallbackTransformer;
use Symfony\Component\Form\ChoiceList\Loader\CallbackChoiceLoader;
use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
class UserType extends AbstractType
{
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add( 'email', EmailType::class,[
'label' => 'Email'
] );
$builder->add( 'save', SubmitType::class, [
'attr' => [
'class' => 'btn btn-primary',
'id' => 'btn-user-form'
],
'label' => 'Save'
] );
}
/**
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults( [
'data_class' => 'App\Entity\User'
]);
}
/**
* {@inheritdoc}
*/
public function getBlockPrefix()
{
return 'user';
}
}
和控制器：
public function edit(User $user, RequestStack $request)
{
$em = $this->getDoctrine()->getManager();
$form = $this->createForm( UserType::class, $user);
$form->handleRequest($request->getCurrentRequest());
if ($form->isSubmitted() && $form->isValid()){
$em->persist( $user);
$em->flush();
$this->addFlash('success', 'User updated.');
return $this->redirectToRoute('user_index');
}
return $this->render('user/update.html.twig', [
'form' => $form->createView(),
'deleteForm' => $this->createDeleteForm($user)->createView()
]);
}
当保存现有记录时，出现错误消息“电子邮件已在使用中”（由我指定）
Symfony Profiler中显示以下查询：
SELECT t0.id AS id_1, t0.email AS email_2, t0.firstname AS firstname_3, t0.lastname AS lastname_4, t0.roles AS roles_5, t0.last_ip_address AS last_ip_address_6, t0.last_active AS last_active_7, t0.password AS password_8, t0.reset_token AS reset_token_9, t0.company_id AS company_id_10 FROM user t0 WHERE t0.id = ?
Parameters:
[▼
1
]
View formatted query View runnable query Explain query
2 0.44 ms
SELECT t0.id AS id_1, t0.email AS email_2, t0.firstname AS firstname_3, t0.lastname AS lastname_4, t0.roles AS roles_5, t0.last_ip_address AS last_ip_address_6, t0.last_active AS last_active_7, t0.password AS password_8, t0.reset_token AS reset_token_9, t0.company_id AS company_id_10 FROM user t0 WHERE t0.id = ?
Parameters:
[▼
"100"
]
View formatted query View runnable query Explain query
3 0.43 ms
SELECT t0.id AS id_1, t0.name AS name_2 FROM company t0 WHERE t0.id = ?
Parameters:
[▼
17
]
View formatted query View runnable query Explain query
4 0.56 ms
SELECT c0_.id AS id_0, c0_.name AS name_1 FROM company c0_ WHERE c0_.id IN (?) ORDER BY c0_.name ASC
Parameters:
[▼
[▼
"17"
]
]
View formatted query View runnable query Explain query
5 0.76 ms
SELECT u0_.id AS id_0, u0_.email AS email_1, u0_.firstname AS firstname_2, u0_.lastname AS lastname_3, u0_.roles AS roles_4, u0_.last_ip_address AS last_ip_address_5, u0_.last_active AS last_active_6, u0_.password AS password_7, u0_.reset_token AS reset_token_8, u0_.company_id AS company_id_9 FROM user u0_ LEFT JOIN company c1_ ON u0_.company_id = c1_.id
Parameters:
[]
View formatted query View runnable query Explain query
6 0.31 ms
SELECT c0_.id AS id_0, c0_.name AS name_1 FROM company c0_ ORDER BY c0_.name ASC
Parameters:
[]
View formatted query View runnable query Explain query
7 0.14 ms
"START TRANSACTION"
Parameters:
[]
View formatted query View runnable query Explain query
8 0.49 ms
UPDATE user SET last_active = ? WHERE id = ?
Parameters:
[▼
"2020-01-18 07:56:51"
1
]
View formatted query View runnable query Explain query
9 0.77 ms
"COMMIT"
Parameters:
[]
View formatted query View runnable query Explain query
10 0.15 ms
"START TRANSACTION"
Parameters:
[]
View formatted query View runnable query Explain query
11 0.23 ms
INSERT INTO usage_log (logged, url, user_id, file_type_id) VALUES (?, ?, ?, ?)
Parameters:
[▼
1 => "2020-01-18 07:56:51"
2 => "/user/100/edit"
3 => 1
4 => null
]
View formatted query View runnable query Explain query
12 0.38 ms
"COMMIT"
Parameters:
[]
[有一个听众引起了
update last_active... and
insert into usage_log
查询。可以肯定的是，此问题不仅限于用户实体，当我创建记录时，另一个实体公司也存在相同的问题。
实体：
<?php
namespace App\Entity;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\ORM\Mapping\OneToMany;
use Doctrine\ORM\Mapping\ManyToMany;
use Doctrine\ORM\Mapping\JoinColumn;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
/**
* @ORM\Entity(repositoryClass="App\Repository\CompanyRepository")
* @UniqueEntity("name", message="Company already saved")
*/
class Company
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @ORM\Column(type="string", length=100, unique=true)
*/
private $name;
/**
* @OneToMany(targetEntity="User", mappedBy="Company")
*/
private $Users;
/**
* @ManyToMany(targetEntity="ModelFile", inversedBy="Companies")
* @JoinColumn(nullable=true)
*/
private $ModelFile;
控制器：
public function create(RequestStack $request)
{
$company = new Company();
$em = $this->getDoctrine()->getManager();
$form = $this->createForm(CompanyType::class, $company);
$form->handleRequest($request->getCurrentRequest());
if ($form->isSubmitted() && $form->isValid()){
$em->persist($company);
$em->flush();
$this->addFlash('success', 'Company created.');
return $this->redirectToRoute('company_index');
}
return $this->render('company/create.html.twig', [
'form' => $form->createView()
]);
}
创建公司时的查询日志是
1 0.84 ms
SELECT t0.id AS id_1, t0.email AS email_2, t0.firstname AS firstname_3, t0.lastname AS lastname_4, t0.roles AS roles_5, t0.last_ip_address AS last_ip_address_6, t0.last_active AS last_active_7, t0.password AS password_8, t0.reset_token AS reset_token_9, t0.company_id AS company_id_10 FROM user t0 WHERE t0.id = ?
Parameters:
[▼
1
]
View formatted query View runnable query Explain query
2 1.22 ms
SELECT c0_.id AS id_0, c0_.name AS name_1 FROM company c0_ ORDER BY c0_.name ASC
Parameters:
[]
View formatted query View runnable query Explain query
3 0.47 ms
SELECT m0_.id AS id_0, m0_.name AS name_1, m0_.display_name AS display_name_2, m0_.file AS file_3 FROM model_file m0_
Parameters:
[]
View formatted query View runnable query Explain query
4 0.13 ms
"START TRANSACTION"
Parameters:
[]
View formatted query View runnable query Explain query
5 0.51 ms
UPDATE user SET last_active = ? WHERE id = ?
Parameters:
[▼
"2020-01-18 07:44:29"
1
]
View formatted query View runnable query Explain query
6 0.55 ms
"COMMIT"
Parameters:
[]
View formatted query View runnable query Explain query
7 0.14 ms
"START TRANSACTION"
Parameters:
[]
View formatted query View runnable query Explain query
8 0.34 ms
INSERT INTO usage_log (logged, url, user_id, file_type_id) VALUES (?, ?, ?, ?)
Parameters:
[▼
1 => "2020-01-18 07:44:29"
2 => "/company/create"
3 => 1
4 => null
]
View formatted query View runnable query Explain query
9 0.30 ms
"COMMIT"
Parameters:
[]
我也在这里提供了侦听器代码：
<?php
namespace App\Listener;
use App\Entity\UsageLog;
use App\Entity\User;
use Doctrine\ORM\EntityManagerInterface;
use \Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
class LastActivityListener implements EventSubscriberInterface
{
private $tokenStorage;
private $em;
private $router;
public function __construct(TokenStorageInterface $tokenStorage, EntityManagerInterface $em, RouterInterface $router)
{
$this->tokenStorage = $tokenStorage;
$this->em = $em;
$this->router = $router;
}
public function onResponse(FilterResponseEvent $event)
{
$token = $this->tokenStorage->getToken();
if ($token && $token->isAuthenticated() && is_a($token->getUser(), User::class) ) {
$token->getUser()->setLastActive(new \DateTime());
$this->em->persist($token->getUser());
$this->em->flush($token->getUser());
if ($event->getRequest()->get('_route')) {
$usageLog = new UsageLog();
$usageLog
->setUrl($this->router->generate($event->getRequest()->get('_route'), $event->getRequest()->attributes->get('_route_params')))
->setUser($token->getUser())
->setLogged(new \DateTime());
$this->em->persist($usageLog);
$this->em->flush($usageLog);
}
}
}
public static function getSubscribedEvents()
{
return [
KernelEvents::RESPONSE => 'onResponse',
];
}
}
我已注释掉onResponse中的所有内容，但问题仍然存在。
我发现奇怪的是，当我保存公司时，对验证失败的描述。它列出了所有公司作为失败的原因：
它确实已经存在，但是在同一记录上。我应该使用不同的实体进行插入和更新，还是UniqueEntity设计为如何使用？
Symfony 4.2
3个回答
0
投票
投票
将实体加载到表单中时应非常小心：
$form = $this->createForm( UserType::class, $user);
$form->handleRequest($request->getCurrentRequest());
if ($form->isSubmitted() && $form->isValid()) {
即使您的表格无效，handleRequest也会更改您的实体，除非您在实体顶部使用->flush()，否则它将在代码的第一个@ORM\ChangeTrackingPolicy("DEFERRED_EXPLICIT")处进行更新。
除此之外，您的代码是完全有效的，恐怕您需要给我们更多上下文。
如果有疑问，可以尝试运行以下示例：
src / Entity / Test.php
<?php
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
/**
* @ORM\Entity(repositoryClass="App\Repository\TestRepository")
* @ORM\ChangeTrackingPolicy("DEFERRED_EXPLICIT")
* @UniqueEntity("test")
*/
class Test
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @ORM\Column(type="string", length=255, unique=true)
*/
private $test;
public function getId(): ?int
{
return $this->id;
}
public function getTest(): ?string
{
return $this->test;
}
public function setTest(string $test): self
{
$this->test = $test;
return $this;
}
}
src / Controller / TestController.php
<?php
namespace App\Controller;
use App\Entity\Test;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;
class TestController extends Controller
{
/**
* @Route(path="/test/{id}", name="test")
*
* @param string $code
* @param int $action
*
* @return Response
*/
public function testAction(Test $test, Request $request)
{
$form = $this->createFormBuilder($test, ['data_class' => Test::class])
->add('test', TextType::class)
->add('save', SubmitType::class)
->getForm();
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($test);
$em->flush();
return $this->redirectToRoute('test', [
'id' => $test->getId(),
]);
}
return $this->render('test.html.twig', [
'form' => $form->createView(),
]);
}
}
templates / test.html.twig
{{ form(form) }}
这可能是一个愚蠢的评论，但是您是否检查了唯一索引是否已正确插入数据库模式中？如果不是这样，您可能让另一个用户拥有相同的电子邮件，说明验证失败的原因。
-1
投票
投票
代替使用EntityManager::persist()，使用EntityManager::merge()：
$em->merge($user);
您正在从表单创建的实体未被识别为已由实体管理器管理的实体，并且persist()尝试创建新实体。
通过使用merge()，它将尝试将您从表单获得的实体重新链接到由Doctrine管理的实体。
-2
投票
投票
可以一直尝试，可能不是最有效的方法，但是应该可以工作：
public function edit(User $user, RequestStack $request)
{
$em = $this->getDoctrine()->getManager();
$form = $this->createForm( UserType::class, $user);
$form->handleRequest($request->getCurrentRequest());
if ($form->isSubmitted() && $form->isValid()){
$_user = $this->getDoctrine()->getRepository(User::class)->find($user->id);
$_user->email = $user->email;
// note it might be $_user->setEmail ($user->email) instead, can't quite remember, been a while since I used symfony...
$em->persist($_user);
$em->flush();
$this->addFlash('success', 'User updated.');
return $this->redirectToRoute('user_index');
}
return $this->render('user/update.html.twig', [
'form' => $form->createView(),
'deleteForm' => $this->createDeleteForm($user)->createView()
]);
}
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