我想用 Symfony 在我的表單中插入一個復選框。我在 UserType.php 檔案中將 CheckboxType 用于欄位“角色”。我想在選中復選框時設定值“ROLE_ADMIN”。復選框的值是布林值，目前這就是我被卡住的原因。我目前收到此錯誤訊息：無法轉換屬性路徑“角色”的值：應為布林值。這與我的資料庫要求的值（json 型別）不對應。我想我錯過了一步，我不知道如何在構建表單時繼續前進。
如何設定我的復選框值，以便在選中復選框時更改“ROLE_ADMIN”（而不是“ROLE_USER”）的“用戶”角色值？
Register.html.twig
{% extends 'base.html.twig' %}
{% block title %}Incris-toi !{% endblock %}
{% block main %}
<main>
<header></header>
{{form_start(userform)}}
<div class="form container">
<div class="form-floating mb-3">
{{form_widget(userform.email, {'attr' : {'placeholder' : 'Mon adresse e-mail', 'class' : 'form-control'}})}}
{{form_label(userform.email, 'Mon adresse e-mail', {'label_attr' : {'class' : 'label'}})}}
</div>
<div class="form-floating mb-3">
{{form_widget(userform.password.first, {'attr' : {'placeholder' : 'Mon mot de passe', 'class' : 'form-control'}})}}
{{form_label(userform.password.first, 'Mon mot de passe', {'label_attr' : {'class' : 'label'}})}}
</div>
<div class="form-floating">
{{form_widget(userform.password.second, {'attr' : {'placeholder' : 'Confirmation de mon mot de passe', 'class' : 'form-control'}})}}
{{form_label(userform.password.second, 'Confirmation de mon mot de passe', {'label_attr' : {'class' : 'label'}})}}
</div>
<div class="checkbox">
<label class="remember-me-label">
{{form_widget(userform.roles)}}
<span class="checkmark"></span>
Je m'inscris uniquement en tant qu'organisateur.
</label>
</div>
<button class="btn btn-lg btn-outline-primary mt-4 d-flex mx-auto">Je m'inscris</button>
</div>
{{form_end(userform)}}
</main>
{% endblock %}
用戶型別.php
<?php
namespace App\Form;
use App\Entity\User;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
use Symfony\Component\Form\Extension\Core\Type\PasswordType;
use Symfony\Component\Form\Extension\Core\Type\RepeatedType;
class UserType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options): void
{
$builder
->add('gender')
->add('lastname')
->add('firstname')
->add('birthdate')
->add('occupation')
->add('nationality')
->add('nativelanguage')
->add('wishedlanguages')
->add('email')
->add('password', PasswordType::class, [
'mapped' => false
])
->add('password', RepeatedType::class, [
'type' => PasswordType::class,
'invalid_message' => 'Les deux mots de passe doivent être identiques.',
'options' => ['attr' => ['class' => 'password-field']],
'required' => true,
'first_options' => ['label' => 'Password'],
'second_options' => ['label' => 'Repeat Password'],
])
->add('roles', CheckboxType::class, [
'label' => 'Role :',
'required' => false,
])
->add('Subcription', SubmitType::class);
;
}
public function configureOptions(OptionsResolver $resolver): void
{
$resolver->setDefaults([
'data_class' => User::class,
]);
}
}
用戶控制器.php
<?php
namespace App\Controller;
use App\Entity\User;
use App\Form\UserType;
use App\Repository\UserRepository;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;
class UserController extends AbstractController
{
#[Route('/register', name: 'register', methods: ['GET', 'POST'])]
public function createUser(
Request $request,
EntityManagerInterface $entityManagerInterface,
UserPasswordHasherInterface $userPasswordHasherInterface
){
$user = new User();
$userform = $this->createForm(UserType::class, $user);
$userform->handleRequest($request);
if ($userform->isSubmitted() && $userform->isValid()) {
$user->setRoles(["ROLE_USER"]);
$plainPassword = $userform->get('password')->getData();
$hashedPassword = $userPasswordHasherInterface->hashPassword($user, $plainPassword);
$user->setPassword($hashedPassword);
$entityManagerInterface->persist($user);
$entityManagerInterface->flush();
return $this->redirectToRoute('home');
}
return $this->render('front/register.html.twig', [
'userform' => $userform->createView()
]);
}
}
uj5u.com熱心網友回復：
這是您的用例的dataTransformer示例。
CallbackTransformer 將兩個回呼函式作為引數。第一個將原始值轉換為將用于呈現欄位的格式。第二個則相反：它將提交的值轉換回您將在代碼中使用的格式。
這可以制作成一個單獨的檔案以在其他形式中重用，這在檔案中有所描述，但這只是一個示例。
// Remember to add this at the top of your UserType.
use Symfony\Component\Form\CallbackTransformer;
// Add this into your buildForm method.
$builder->get('roles')
->addModelTransformer(new CallbackTransformer(
function ($arrayAsBool) {
// Transform the array to a bool.
// From the db to the form checkbox.
return in_array("ROLE_ADMIN", $arrayAsBool);
},
function ($boolAsArray) {
// Transform the bool back to an array.
// From the form submit to the db.
// For multiple roles this will need updating, for this example this will do.
return $boolAsArray ? ["ROLE_ADMIN"] : ["ROLE_USER"];
}
));
您不再需要$user->setRoles(["ROLE_USER"]);在UserController中設定默認值，因為它現在會在表單中設定它。
更新/調整您的需求。
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/503886.html