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我有一个 CreditCard 实体，在表单屏幕上有一个包含用户银行实体的下拉列表，我想根据所选银行动态填写 BankAccount 下拉列表，我已经尝试了 SO 的几个解决方案并在我的表单中添加了一个事件侦听器但是当我更改银行下拉菜单我得到“违反完整性约束：kart_adi（实体上的信用卡名称字段）不能为空。我正在使用带有 php 8.1.2 的 Symfony 6

KrediKarti.php：

class KrediKarti
{
#[ORM\Id]
#[ORM\GeneratedValue]
#[ORM\Column(type: 'integer')]
private $id;

#[ORM\ManyToOne(targetEntity: Banka::class)]
#[ORM\JoinColumn(nullable: false)]
private $banka;

#[ORM\ManyToOne(targetEntity: BankaHesap::class, inversedBy: 'krediKartlari')]
#[ORM\JoinColumn(nullable: false)]
private $hesap;

#[ORM\Column(type: 'string', length: 255)]
private $kart_adi;

#[ORM\Column(type: 'string', length: 255)]
private $kart_no;

#[ORM\Column(type: 'integer')]
private $hesap_kesim_gunu;

#[ORM\Column(type: 'string', length: 255, nullable: true)]
private $aciklama;

#[ORM\Column(type: 'float')]
private $borc;

#[ORM\Column(type: 'float')]
private $alacak;

#[ORM\Column(type: 'datetime_immutable')]
private $created_at;

public function getId(): ?int
{
    return $this->id;
}

public function getBanka(): ?Banka
{
    return $this->banka;
}

public function setBanka(?Banka $banka): self
{
    $this->banka = $banka;

    return $this;
}

public function getHesap(): ?BankaHesap
{
    return $this->hesap;
}

public function setHesap(?BankaHesap $hesap): self
{
    $this->hesap = $hesap;

    return $this;
}

public function getKartAdi(): ?string
{
    return $this->kart_adi;
}

public function setKartAdi(string $kart_adi): self
{
    $this->kart_adi = $kart_adi;

    return $this;
}

public function getKartNo(): ?string
{
    return $this->kart_no;
}

public function setKartNo(string $kart_no): self
{
    $this->kart_no = $kart_no;

    return $this;
}

public function getHesapKesimGunu(): ?int
{
    return $this->hesap_kesim_gunu;
}

public function setHesapKesimGunu(int $hesap_kesim_gunu): self
{
    $this->hesap_kesim_gunu = $hesap_kesim_gunu;

    return $this;
}

public function getAciklama(): ?string
{
    return $this->aciklama;
}

public function setAciklama(?string $aciklama): self
{
    $this->aciklama = $aciklama;

    return $this;
}

public function getBorc(): ?float
{
    return $this->borc;
}

public function setBorc(float $borc): self
{
    $this->borc = $borc;

    return $this;
}

public function getAlacak(): ?float
{
    return $this->alacak;
}

public function setAlacak(float $alacak): self
{
    $this->alacak = $alacak;

    return $this;
}

public function getCreatedAt(): ?\DateTimeImmutable
{
    return $this->created_at;
}

public function setCreatedAt(\DateTimeImmutable $created_at): self
{
    $this->created_at = $created_at;

    return $this;
}
}

KrediKartiType.php：

$builder
        ->add('kart_adi',TextType::class,['label' => 'Kart Adı','required' => false, 'attr' =>['class' => 'form-control', 'placeholder' => 'Kart Adı']])
        ->add('kart_no',TextType::class,['label' => 'Kart No','required' => false, 'attr' =>['class' => 'form-control', 'placeholder' => 'Kart No']])
        ->add('hesap_kesim_gunu', NumberType::class, [
            'label' => 'Hesap Kesim Tarihi', 'attr' =>['class' => 'form-control', 'placeholder' => 'Hesap Kesim Günü']
        ])
        ->add('aciklama',TextType::class,['label' => 'Açıklama','required' => false, 'attr' =>['class' => 'form-control', 'placeholder' => 'Açıklama']])
        ->add('borc', NumberType::class,
            [
                'label' => 'Borç', 'attr' =>['class' => 'form-control', 'placeholder' => "Borç",'value' => '0.00','style' => 'text-align: right']
            ])
        ->add('alacak', NumberType::class,
            [
                'label' => 'Alacak', 'attr' =>['class' => 'form-control', 'placeholder' => "Alacak",'value' => '0.00','style' => 'text-align: right']
            ])
        ->add('banka',  EntityType::class, array(
            'class' => Banka::class,
            'choice_label'=> 'adi',
            'placeholder' => 'Lütfen bankanızı seçiniz',
            'attr' =>['class' => 'form-control']
        ))

    ;

    $formModifier = function (FormInterface $form, Banka $banka = null) {
        $banka_hesap = null === $banka ? [] : $banka->getBankaHesaplari();

        $form->add('hesap', EntityType::class, [
            'class' => BankaHesap::class,
            'placeholder' => '',
            'choices' => $banka_hesap,
        ]);
    };

    $builder->addEventListener(
        FormEvents::PRE_SET_DATA,
        function (FormEvent $event) use ($formModifier) {
            $data = $event->getData();

            $formModifier($event->getForm(), $data->getBanka());
        }
    );

    $builder->get('banka')->addEventListener(
        FormEvents::POST_SUBMIT,
        function (FormEvent $event) use ($formModifier) {
            $banka = $event->getForm()->getData();

            $formModifier($event->getForm()->getParent(), $banka);
        }
    );

新的.html.twig：

<script>
var $banka = $('#kredi_karti_banka');
var $token = $('#kredi_karti__token');
$banka.change(function() {
    var $form = $(this).closest('form');
    var data = {};
    data[$banka.attr('name')] = $banka.val();
    data[$token.attr('name')] = $token.val();
    $.ajax({
    url : $form.attr('action'),
    type: $form.attr('method'),
    data : data,
    complete: function(html) {
    // Replace current position field ...
    $('#kredi_karti_hesap').replaceWith(
    // ... with the returned one from the AJAX response.
    $(html.responseText).find('#meetup_position')
    );
    // Position field now displays the appropriate positions.
    }
    });
});
</script>

我只是想根据银行找零时选择的银行来获取银行账户。

4

1 回答 1

1

您可以在创建表单时向表单添加选项。因此，您可以创建一个端点，您可以在其中使用可能是bankid 的额外选项创建表单，然后仅呈现您希望的选择元素，在您的情况下为bank_accountsselect。您可以通过 JS 在更改事件上调用此端点来banks选择。您还需要修改KrediKartiType以便bank_accounts选择应该从查询构建器中获取值。例如：

class BankAccountsController extends AbstractController
{
    #[Route('/bank-accounts-select', name: 'bank_accounts_select', methods: ['GET'])]
    public function getBankAccountsSelect(Request $request): Response
    {
        $form = $this->createForm(
            KrediKartiType::class,
            null,
            ['bankId' => $request->query->get('bankId')]
        );

        return $this->render('_bank-accounts-select.html.twig', [
            'form' => $form->createView(),
        ]);
    }
}

键的表单类型bank_accounts可能如下所示：

->add('bank_accounts', EntityType::class, [
      'class' => BankaHesap::class,
      'query_builder' => function (BankaHesapRepository $bankaHesapRepository) use ($options) {
           return $bankaHesapRepository->bankAccountsByBankId((int) $options['bankId']);
       },
       'label_attr' => ['class' => 'mb-0 d-block'],
])

从 bankId 获取银行账户的 Repository 方法：

public function bankAccountsByBankId(?int $bankId): QueryBuilder
{
   return $this->createQueryBuilder('bh')
     ->join('bh.bank', 'b')
     ->where('b.id = :bankId')
     ->setParameter('bankId', $bankId)
     ->orderBy('bh.name', 'ASC') // this is optional :)
   ;
}

您还需要呈现选择元素的树枝文件_bank-accounts-select.html.twig：

{{ form_row(form.bank_accounts, {
    attr: {
        'class': 'mb-3 form-control'
    }
}) }}

最后是 Js 部分，您需要在其中调用端点bank-accounts-select，将 select 替换为从端点获得的选择：

$bankSelect.on('change', (event) => {
  const bankId = event.target.value;
  $.ajax({
      url: BASE_URL+'/bank-accounts-select',
      data: {
        bankId: bankId,
      },
      success: function (html) {
        const $bankAccountsSelect = REGION_SELECT_FROM_CLASS_NAME //replace this with your jQuery/Javascript selector;
        $bankAccountsSelect.html($(html).find("option"));
        $bankAccountsSelect.val("").trigger("change");
      },
    });
});

应该这样做，我建议您在代码中使用英语；）

于 2022-02-05T17:16:32.523 回答