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toxxxa
Asked:2020-02-18 17:04:49 +0000 UTC2020-02-18 17:04:49 +0000 UTC

如何在 Symfony 4 中手动创建嵌套表单并用数组填充它

  • 772

有一个实体 myEntity，其记录属性为 json 类型，反序列化后如下所示：

class myEntity
{
    public function getRecords()
    {
        return [
            ['param1' => 'value1', 'param2' => 'value2'],
            ['param1' => 'value1', 'param2' => 'value2'],
        ];
    }
}

我想创建一个将用这些反序列化值填充的表单，并为新值多留一个“行”：

MAIN FORM
    -> Record #1
        -> Param 1
        -> Param 2
    -> Record #2
        -> Param 1
        -> Param 2
    -> New Record <- пустая строка для новых значений
        -> Param 1
        -> Param 2

我在控制器中创建了一个新表单：

$this->container->get('form.factory')->create(myMainForm::class, $myEntity);

在主窗体中，我创建了一个嵌套records：

class myMainFormType extends EasyAdminFormType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('records', myRecordsType::class);
    }
}

而这里我有问题，不知道怎么遍历所有现有的数组值​​​​​​​​​​

class myRecordsType extends EasyAdminFormType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // TODO buildForm(), something like:
        // foreach (... as ...)
        // {
        //      $builder->add('record', myRecordType::class);
        // }
    }
}

最后，将创建文本字段本身，这里一切都很清楚：

class myRecordType extends EasyAdminFormType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('param1', TextType::class);
        $builder->add('param2', TextType::class);
    }
}
form

2 个回答

  1. 感谢@kostiantyn-okhotnyk 的帮助，结果是这样的：

    class myRecordsType extends EasyAdminFormType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) {
            $form = $event->getForm();
            foreach ($event->getData() as $i => $d) {
                $form->add($i, MyRecordType::class);
                $form->get($i)->setData($d);
            }
            $i = isset($i) ? $i++ : 0;
            $form->add($i, MyRecordType::class);
        });
    }
}
    • 1
  2. Best Answer

    getData是一个类方法FormEvent。我想你需要挂起一个事件，然后调用getData.

    public function buildForm(FormBuilderInterface $builder, array $options) {
   ...
   $builder->addEventListener(FormEvents::PRE_SET_DATA /*POST_SUBMIT ...*/, function (FormEvent $event) {
          $data = $event->getData();
          //и тут уже перебор  
   });
}

    表单事件中的事件。

    • 0

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