访问嵌入式表单数据符号

Question

我正在使用symfony中的嵌入式表单，并且无法从嵌入式表单获取数据。

这是我的专利表格

namespace AppBundle\Form;

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\TextType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use AppBundle\Form\SubscriberAddressType;

class SubscriberDetailsType extends AbstractType {
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options) {

        $builder
            ->add('firstname', TextType::class, [
                'label' => false,
                'required' => true,
                'error_bubbling' => true,
                'attr' => [
                    'placeholder' => 'First Name',
                    'class' => 'form-control'
                    ]])
            ->add('lastname', TextType::class, [
                'label' => false,
                'required' => true,
                'error_bubbling' => true,
                'attr' => array(
                    'placeholder' => 'Last Name',
                    'class' => 'form-control'
                )])
            ->add('emailaddress', EmailType::class, [
                'label' => false,
                'required' => true,
                'error_bubbling' => true,
                'attr' => [
                    'placeholder' => 'Email Address',
                    'pattern'     => '.{2,}',//minlength
                    'class' => 'form-control'
                    ]])
            ->add('subscriberaddress', CollectionType::class, ['entry_type' => SubscriberAddressType::class])
            ->add('submit', SubmitType::class, [
                'label' => 'Sign Up',
                'attr' => [
                    'class' => 'smoothScroll btn btn-danger sb-button'
                    ]
        ])
             ;
    }

    /**
    * @param OptionsResolverInterface $resolver
    */
    public function configureOptions(OptionsResolver $resolver) {
        $resolver->setDefaults(['data_class' => 'AppBundle\Entity\SubscriberDetails']);
    }
    /**
     * @return string
     */
    public function getName() {
        return 'subscriberdetails';
    }
}

这是我的孩子表格

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\TextType;

class SubscriberAddressType extends AbstractType {
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options) {

        $builder
            ->add('address1', TextType::class, [
                'label' => false,
                'required' => true,
                'error_bubbling' => true,
                'attr' => [
                    'placeholder' => 'Address 1',
                    'class' => 'form-control'
                    ]])
            ->add('city', TextType::class, [
                'label' => false,
                'required' => true,
                'error_bubbling' => true,
                'attr' => array(
                    'placeholder' => 'City',
                    'class' => 'form-control'
                )])
             ;
    }

    /**
    * @param OptionsResolverInterface $resolver
    */
    public function configureOptions(OptionsResolver $resolver) {
        $resolver->setDefaults(['data_class' => 'AppBundle\Entity\SubscriberAddress']);
    }
    /**
     * @return string
     */
    public function getName() {
        return 'subscriber';
    }
}

这就是我在树枝模板中调用嵌入式表单的方式

        <div class="form-group ">        
            {% for field in form.subscriberaddress %}
                {{ form_label(field.city) }}
                {{ form_widget(field.city) }}
            {% endfor %}           
        </div>

当我尝试使用以下方法从表单获取数据时：

            $firstname = $form['firstname'] ->getData();
            $lastname =$form['lastname'] ->getData();
            $email = $form['emailaddress'] ->getData();
            $address = $form['subscriber address']['address1'] ->getData();
            $city =$form['subscriber address']['city'] ->getData();

对于上面的前三行它工作正常，但是当它到达$ address = $ form ['subscriber address'] ['address1']-> getData（）; with是一个嵌入式字段，symfony拍摄错误子元素不存在。

我已经尝试通过官方的symfony食谱以及Post1，Post2这些帖子 ，但是这些似乎都无法回答我的问题，即：我如何从表单的嵌入式字段中获取数据？

Answer 1

您的嵌入式表单实际上是嵌入在集合中的（不确定是否是您的意图），因此您需要将其视为集合/数组

如果收集错了

您可能需要将其更改为

->add('subscriberaddress', SubscriberAddressType::class)

然后$ form-> getData（）将起作用。或者，您可以致电$form->get('subscriberaddress')->getData()

如果你真的想要收集

如果您实际上想将其用作CollectionType保留多个副本，SubscriberAddressType则可以通过以下方式访问数据：

foreach ($form->get('subscriberaddress') as $subForm) {
    $subData[] = $subForm->getData();
}

还可以考虑更改名称subscriberaddress以subscriberAddresses表明它是集合