symfony - 两个表单字段合并为一个实体值

Question

如何以一种形式(例如日期和时间)将两个单独的字段(必须分开)连接到一个实体属性 datetime 以在表单发布后保留？

什么是更好的方法？数据转换器 ?表单事件 ?表格模型 ?在持久化之前手动设置所有实体属性？

实体:

<?php namespace Acme\DemoBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="event")
 */
class EventEntity
{

    /**
     * @ORM\Column(name="id", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    // ...

    /**
     * @ORM\Column(name="date_time", type="datetime", nullable=false)
     */
    protected $datetime;

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

    // ...

    public function getDateTime()
    {
        return $this->datetime;
    }

    public function setDateTime(\DateTime $datetime)
    {
        $this->datetime = $datetime;
    }

}

表格类型:

<?php namespace Acme\DemoBundle\Form\Type;

use JMS\DiExtraBundle\Annotation as DI;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

class EventType extends AbstractType
{

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            // ...
            ->add('date', 'date', [
                    'required' => true,
                    'widget'   => 'single_text',
                    'format'   => 'dd.MM.yyyy'
                ]
            )
            ->add('time', 'time', [
                    'required' => false,
                    'widget'   => 'single_text'
                ]
            );
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Acme\DemoBundle\Entity\EventEntity' //Acme\DemoBundle\Form\Model\EventModel ?
        ));
    }

    public function getName()
    {
        return 'event';
    }

}

Answer 1

如果您在 datetime 类型中单独设置日期和时间小部件，则它们将单独呈现，但作为一个字段进行验证。

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add('datetime', 'datetime', array(
            'date_widget' => 'single_text',
            'time_widget' => 'single_text',
            'date_format' => 'dd.MM.yyyy',
        ));
}