Php 如何将实体管理器作为选项从控制器传递到窗体类?错误:所需选项“0”;实体“管理人”;不见了
我试图在我的表单中创建一个动态下拉字段。下拉列表中的选项从表的“名称”字段获取。我已经使用form类创建了表单,并将entity_manager从我的控制器传递给form类 家庭类型-表单类Php 如何将实体管理器作为选项从控制器传递到窗体类?错误:所需选项“0”;实体“管理人”;不见了,php,forms,drop-down-menu,symfony4,entitymanager,Php,Forms,Drop Down Menu,Symfony4,Entitymanager,我试图在我的表单中创建一个动态下拉字段。下拉列表中的选项从表的“名称”字段获取。我已经使用form类创建了表单,并将entity_manager从我的控制器传递给form类 家庭类型-表单类 namespace App\Form; use App\Entity\Family; use App\Form\AddressType; use Symfony\Component\Form\AbstractType; use App\Entity\Vendor; //for radio buttons
namespace App\Form;
use App\Entity\Family;
use App\Form\AddressType;
use Symfony\Component\Form\AbstractType;
use App\Entity\Vendor;
//for radio buttons
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\TelType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\Request;
class FamilyType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$entityManager = $options['entity_manager'];
$list = $entityManager->getRepository(Vendor::class)->getNameList();
$arr = [];
foreach($list as $key=>$value){
foreach($value as $k=> $v){
$arr[$v] = $v;
}
}
$builder
->add('name', TextType::class, [
'attr' => [
'placeholder' => 'Enter Name',
],
])
->add('contact', TelType::class, [
'attr' => [
'placeholder' => 'Enter COntact number',
],
])
->add('gender', ChoiceType::class, [
'choices' => $arr,
'choices_as_values' => true, 'multiple' => false, 'expanded' => true,
]
)
->add('address', AddressType::class, [
//To get validation error for embeded form
'constraints' => array(new Assert\Valid()),
])
->add('favorite_food', ChoiceType::class, [
'choices' => $arr,
])
->add('Save',SubmitType::class,[
'attr' => [
'class' => 'btn btn-success '
]
])
;
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => Family::class,
]);
$resolver->setRequired('entity_manager');
}
}
->add('address', AddressType::class, [
//To get validation error for embeded form
'constraints' => array(new Assert\Valid()),
'entity_manager' => $options['entity_manager']
])
家庭控制器:
public function familyFoodForm(Request $request)
{
$entityManager = $this->getDoctrine()->getManager();
$family = new Family();
$f_form = $this->createForm(FamilyType::class, $family, [
'entity_manager' => $entityManager,
]);
$f_form->handleRequest($request);
if ($f_form->isSubmitted()) {
if ($f_form->isValid()) {
$address = $family->getAddress();
$entityManager->persist($address);
$entityManager->flush();
$entityManager->persist($family);
$entityManager->flush();
$this->addFlash('success', 'Welcome!! Family is added.');
}
}
return $this->render('family/index.html.twig', [
'form' => $f_form->createView(),
]);
}
上面的代码给了我一个错误:
缺少必需的选项“实体管理器”。
我是symfony的新手,我通过以下方式创建了此功能:
此处AddressType表单嵌入FamilyType,执行此操作时,还需要将“实体管理器”(如有疑问)传递给嵌入的表单类 因此,在您的家庭类型表单课程中
namespace App\Form;
use App\Entity\Family;
use App\Form\AddressType;
use Symfony\Component\Form\AbstractType;
use App\Entity\Vendor;
//for radio buttons
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\TelType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\Request;
class FamilyType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$entityManager = $options['entity_manager'];
$list = $entityManager->getRepository(Vendor::class)->getNameList();
$arr = [];
foreach($list as $key=>$value){
foreach($value as $k=> $v){
$arr[$v] = $v;
}
}
$builder
->add('name', TextType::class, [
'attr' => [
'placeholder' => 'Enter Name',
],
])
->add('contact', TelType::class, [
'attr' => [
'placeholder' => 'Enter COntact number',
],
])
->add('gender', ChoiceType::class, [
'choices' => $arr,
'choices_as_values' => true, 'multiple' => false, 'expanded' => true,
]
)
->add('address', AddressType::class, [
//To get validation error for embeded form
'constraints' => array(new Assert\Valid()),
])
->add('favorite_food', ChoiceType::class, [
'choices' => $arr,
])
->add('Save',SubmitType::class,[
'attr' => [
'class' => 'btn btn-success '
]
])
;
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => Family::class,
]);
$resolver->setRequired('entity_manager');
}
}
->add('address', AddressType::class, [
//To get validation error for embeded form
'constraints' => array(new Assert\Valid()),
'entity_manager' => $options['entity_manager']
])
现在,实体管理器选项被传递到表单中。干杯