Symfony 表单构建器默认选择 EntityType

Question

我尝试使用 EntityType 创建带有 html 选择元素的表单。我必须通过某些条件获取值，并且在此条件下必要的默认值不是从数据库中选择的。所以我得到所有选项值，没有一个，必须是默认值。所以我试图找到一种方法来选择这个值。我尝试了什么......

在表单中设置值：

$growing = $em->getRepository('FarmBundle:Growing')->findGrowing($user_id);
$garden = $em->getRepository('FarmBundle:Garden')->find(7);
$tableForm = $this->createForm('FarmBundle\Form\GrowingType', $growing, ['user_id' => $user_id]);

$tableForm->get('garden')->setData($garden);
$form = $tableForm->createView()

然后我尝试在实体中设置数据：

$growing = $em->getRepository('FarmBundle:Growing')->findGrowing($user_id);
$garden = $em->getRepository('FarmBundle:Garden')->find(7);
$growing->setGarden($garden);
$tableForm = $this->createForm('FarmBundle\Form\GrowingType', $growing, ['user_id' => $user_id]);
$form = $tableForm->createView()

然后我尝试使用“数据”属性在 form_builder 中设置默认选择值：

$growing = $em->getRepository('FarmBundle:Growing')->findGrowing($user_id);
$garden = $em->getRepository('FarmBundle:Garden')->find(7);
$tableForm = $this->createForm('FarmBundle\Form\GrowingType', $grow, [
            'user_id' => $user_id,
            'selected_choice' => $garden
        ]);
$form = $tableForm->createView();

Form_builder 代码：

class GrowingType extends AbstractType
{

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('id', HiddenType::class)
            ->add('garden', EntityType::class , [
                'class' => 'FarmBundle\Entity\Garden',
                'query_builder' => function (GardenRepository $gr) use ($options) {
                    return $gr->queryFreeGardens($options['user_id']);
                },
                'attr' => [
                    'data-type' => 'text',
                    'class' => 'table-select',
                    'disabled' => true
                ],
                'required' => false,
                'data' => $options['selected_choice']
            ]);
     }

     /**
      * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'FarmBundle\Entity\Growing',
            'selected_choice' => null,
            'user_id' => null
        ));
    }
 }

以及查询生成器的查询代码：

class GardenRepository extends \Doctrine\ORM\EntityRepository
{
    public function queryFreeGardens($user_id)
    {
        $qb = $this->createQueryBuilder('g')
            ->leftJoin('g.growing', 'grow')
            ->where('grow.plantDate is NULL')
            ->orWhere('grow.endDate is not NULL')
            ->andWhere('g.user = :user_id')
            ->orderBy('g.name')
           ->setParameter('user_id', $user_id);

    return $qb;
    }
}

这 3 种方法都不起作用。结果是一个，如果实体没有在查询生成器中进行查询，我无法设置此实体。如果我将实体设置为默认值，那在查询生成器中一切都会正常工作。
我该如何解决这个问题？

Answer 1

试试这个 在控制器中：

$growing = $em->getRepository('FarmBundle:Growing')->findGrowing($user_id);
$garden = $em->getRepository('FarmBundle:Garden')->find(7);
$tableForm = $this->createForm('FarmBundle\Form\GrowingType', $grow, [
            'user_id' => $user_id,
            'additional_id' => 7
        ]);
$form = $tableForm->createView();

形式：

class GrowingType extends AbstractType
{

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('id', HiddenType::class)
            ->add('garden', EntityType::class , [
                'class' => 'FarmBundle\Entity\Garden',
                'query_builder' => function (GardenRepository $gr) use ($options) {
                    return $gr->queryFreeGardens($options['user_id'], $options['additional_id');
                },
                'attr' => [
                    'data-type' => 'text',
                    'class' => 'table-select',
                    'disabled' => true
                ],
                'required' => false
            ]);
     }

     /**
      * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'FarmBundle\Entity\Growing',
            'additional_id' => null,
            'user_id' => null
        ));
    }
 }

在存储库中：

class GardenRepository extends \Doctrine\ORM\EntityRepository
{
    public function queryFreeGardens($user_id, $additional_id)
    {
        $qb = $this->createQueryBuilder('g')
            ->leftJoin('g.growing', 'grow')
            ->where('grow.plantDate is NULL')
            ->andWhere('g.id = :additional_id')
            ->orWhere('grow.endDate is not NULL')
            ->andWhere('g.user = :user_id')
            ->andWhere('g.id = :additional_id')  
            ->orderBy('g.name')
           ->setParameter('user_id', $user_id)->setParameter('additional_id', $additional_id);

    return $qb;
    }
}

也许您需要调整您的存储库方法以以正确的方式检索值。有 or 子句，您应该将此附加 id 添加到 or 子句的两个分支中。主要思想是也检索您选择的对象。