Question

我想做一个这样的技巧：将标签名称作为数组提交，然后将它们转换为实体。提交的数据：

{"title":"Title","description":"Desc", "tags": ["first", "second"]}

形式：

class ImageType extends AbstractType
{
    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('title')
            ->add('description')
            ->add('imageFile')
            ->add('tags', CollectionType::class, [
                'entry_type' => ImageTagType::class,
                'allow_add'    => true,
                'allow_delete' => true,
                'by_reference' => false,
            ]);
    }

    /**
     * {@inheritdoc}
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => Image::class,
            'csrf_protection' => false,
        ]);
    }

    /**
     * {@inheritdoc}
     */
    public function getBlockPrefix()
    {
        return 'appbundle_image';
    }


}

图片代码表单：

class ImageTagType extends AbstractType
{
    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('name');
    }

    /**
     * {@inheritdoc}
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\ImageTag'
        ));
    }

    /**
     * {@inheritdoc}
     */
    public function getBlockPrefix()
    {
        return 'appbundle_imagetag';
    }


}

实体与多对多连接。一个图像可以有许多标签，一个标签可以有许多图像。我正在构建API并希望简化标签提交。我该怎么办？

Answer 1

使用DataTransformer。例如：

....

$builder->get('YOUR_FILED')
    ->addModelTransformer(new CallbackTransformer(
        function ($array) {
            // your implementation here
        },
        function ($array) {
            if (!$array) {
                return;
            }

            return new ArrayCollection(array_map(function ($data) {
                return $this->someRepository->findOneBy(['FIELD' => $data]);
            }, $array));
        }
    ));

....

提交标记名称数组并转换为实体

1 个答案: