我有一个EventArticleMergedType，其中包含另外两种形式：
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('event', EventType::class)
->add('article', ArticleType::class);
}
在我的控制器中，我将此EventArticleMergedType发送到我的视图：
$article = new Article();
$event = new Event();
$formData['article'] = $article;
$formData['event'] = $event;
$form = $this->createForm('AppBundle\Form\EventArticleMergedType', $formData);
显然我收到了错误：
$form->handleRequest($request);
我的问题是如何获得正确的表格？ 或者你有另一个问题的解决方案吗？
我的帖子实体：
<?php
namespace AppBundle\Entity;
use AppBundle\Entity\Image;
use DateTime;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\UploadedFile;
/**
* @ORM\Entity
* @ORM\InheritanceType("SINGLE_TABLE")
* @ORM\DiscriminatorColumn(name="type", type="string")
* @ORM\DiscriminatorMap({"event" = "Event", "article" = "Article"})
* @ORM\Table(name="posts")
*/
abstract class Post
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255)
*/
protected $name;
/**
* @var string
*
* @ORM\Column(name="text", type="text")
*/
protected $text;
/**
* @var DateTime
*
* @ORM\Column(name="createdAt", type="datetime")
*/
protected $createdAt;
/**
* @ORM\OneToOne(targetEntity="Image", cascade={"persist", "remove"})
* @ORM\JoinColumn(onDelete="CASCADE")
*/
protected $featuredImage;
/**
* @var UploadedFile
*/
protected $file;
/**
* Get id
*
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
*
* @return Post
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Set text
*
* @param string $text
*
* @return Post
*/
public function setText($text)
{
$this->text = $text;
return $this;
}
/**
* Get text
*
* @return string
*/
public function getText()
{
return $this->text;
}
/**
* Set createdAt
*
* @param DateTime $createdAt
* @return Post
*/
public function setCreatedAt(DateTime $createdAt)
{
$this->createdAt = $createdAt;
return $this;
}
/**
* Get createdAt
*
* @return DateTime
*/
public function getCreatedAt()
{
return $this->createdAt;
}
/**
* Set Featured Image
* @param Image $featuredImage
*
* @return Post
*/
public function setFeaturedImage(Image $featuredImage)
{
$this->featuredImage = $featuredImage;
return $this;
}
/**
* Get Featured Image
*
* @return Image
*/
public function getFeaturedImage()
{
return $this->featuredImage;
}
/**
* Set File
* @param UploadedFile $file
*
* @return Post
*/
public function setFile(UploadedFile $file)
{
$this->file = $file;
return $this;
}
/**
* Get File
* @return UploadedFile
*/
public function getFile()
{
return $this->file;
}
}
活动实体：
<?php
namespace AppBundle\Entity;
use AppBundle\Entity\Image;
use AppBundle\Entity\Post;
use DateTime;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\UploadedFile;
/**
* Event
*
* @ORM\Entity
*/
class Event extends Post
{
/**
* @var DateTime
*
* @ORM\Column(name="eventDate", type="datetime")
*/
private $eventDate;
/**
* Set eventDate
*
* @param DateTime $eventDate
* @return Gallery
*/
public function setEventDate(DateTime $eventDate)
{
$this->eventDate = $eventDate;
return $this;
}
/**
* Get eventDate
*
* @return DateTime
*/
public function getEventDate()
{
return $this->eventDate;
}
}
文章实体：
<?php
namespace AppBundle\Entity;
use AppBundle\Entity\Image;
use AppBundle\Entity\Post;
use DateTime;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\UploadedFile;
/**
* Event
*
* @ORM\Entity
*/
class Article extends Post
{
/**
* @var string
*
* @ORM\Column(name="author", type="string", length=255)
*/
private $author;
/**
* Set author
*
* @param string $author
*
* @return Article
*/
public function setAuthor($author)
{
$this->author = $author;
return $this;
}
/**
* Get author
*
* @return string
*/
public function getAuthor()
{
return $this->author;
}
}
这是堆栈跟踪：
[1] Symfony\Component\PropertyAccess\Exception\InvalidArgumentException: Expected argument of type "DateTime", "NULL" given
at n/a
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php line 254
at Symfony\Component\PropertyAccess\PropertyAccessor::throwInvalidArgumentException('Argument 1 passed to AppBundle\Entity\Post::setCreatedAt() must be an instance of DateTime, null given, called in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php on line 605 and defined', array(array('file' => '/var/www/filadelfia/src/AppBundle/Entity/Post.php', 'line' => '124', 'function' => 'handleError', 'class' => 'Symfony\Component\PropertyAccess\PropertyAccessor', 'type' => '::', 'args' => array('4096', 'Argument 1 passed to AppBundle\Entity\Post::setCreatedAt() must be an instance of DateTime, null given, called in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php on line 605 and defined', '/var/www/filadelfia/src/AppBundle/Entity/Post.php', '124', array('this' => object(Article)))), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php', 'line' => '605', 'function' => 'setCreatedAt', 'class' => 'AppBundle\Entity\Post', 'type' => '->', 'args' => array(null)), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php', 'line' => '201', 'function' => 'writeProperty', 'class' => 'Symfony\Component\PropertyAccess\PropertyAccessor', 'type' => '->', 'args' => array(array(object(Article), object(Article)), 'createdAt', null)), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php', 'line' => '93', 'function' => 'setValue', 'class' => 'Symfony\Component\PropertyAccess\PropertyAccessor', 'type' => '->', 'args' => array(object(Article), object(PropertyPath), null)), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php', 'line' => '623', 'function' => 'mapFormsToData', 'class' => 'Symfony\Component\Form\Extension\Core\DataMapper\PropertyPathMapper', 'type' => '->', 'args' => array(object(RecursiveIteratorIterator), object(Article))), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php', 'line' => '567', 'function' => 'submit', 'class' => 'Symfony\Component\Form\Form', 'type' => '->', 'args' => array(array('post' => array('name' => 'dfdfdfd', 'text' => 'dfdfdfd', 'file' => object(UploadedFile)), 'author' => 'dfdfdf'), true)), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/HttpFoundation/HttpFoundationRequestHandler.php', 'line' => '113', 'function' => 'submit', 'class' => 'Symfony\Component\Form\Form', 'type' => '->', 'args' => array(array('article' => array('post' => array('name' => 'dfdfdfd', 'text' => 'dfdfdfd', 'file' => object(UploadedFile)), 'author' => 'dfdfdf'), 'event' => array('eventDate' => array('date' => array('year' => '2012', 'month' => '1', 'day' => '1'), 'time' => array('hour' => '0', 'minute' => '0')))), true)), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php', 'line' => '489', 'function' => 'handleRequest', 'class' => 'Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationRequestHandler', 'type' => '->', 'args' => array(object(Form), object(Request))), array('file' => '/var/www/filadelfia/src/AppBundle/Controller/Admin/PostAdminController.php', 'line' => '58', 'function' => 'handleRequest', 'class' => 'Symfony\Component\Form\Form', 'type' => '->', 'args' => array(object(Request))), array('function' => 'newAction', 'class' => 'AppBundle\Controller\Admin\PostAdminController', 'type' => '->', 'args' => array(object(Request))), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php', 'line' => '144', 'function' => 'call_user_func_array', 'args' => array(array(object(PostAdminController), 'newAction'), array(object(Request)))), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php', 'line' => '64', 'function' => 'handleRaw', 'class' => 'Symfony\Component\HttpKernel\HttpKernel', 'type' => '->', 'args' => array(object(Request), '1')), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/ContainerAwareHttpKernel.php', 'line' => '69', 'function' => 'handle', 'class' => 'Symfony\Component\HttpKernel\HttpKernel', 'type' => '->', 'args' => array(object(Request), '1', true)), array('file' => '/var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php', 'line' => '185', 'function' => 'handle', 'class' => 'Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel', 'type' => '->', 'args' => array(object(Request), '1', true)), array('file' => '/var/www/filadelfia/web/app_dev.php', 'line' => '20', 'function' => 'handle', 'class' => 'Symfony\Component\HttpKernel\Kernel', 'type' => '->', 'args' => array(object(Request)))), '1')
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php line 240
at Symfony\Component\PropertyAccess\PropertyAccessor::handleError('4096', 'Argument 1 passed to AppBundle\Entity\Post::setCreatedAt() must be an instance of DateTime, null given, called in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php on line 605 and defined', '/var/www/filadelfia/src/AppBundle/Entity/Post.php', '124', array('this' => object(Article)))
in /var/www/filadelfia/src/AppBundle/Entity/Post.php line 124
at AppBundle\Entity\Post->setCreatedAt(null)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php line 605
at Symfony\Component\PropertyAccess\PropertyAccessor->writeProperty(array(object(Article), object(Article)), 'createdAt', null)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php line 201
at Symfony\Component\PropertyAccess\PropertyAccessor->setValue(object(Article), object(PropertyPath), null)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php line 93
at Symfony\Component\Form\Extension\Core\DataMapper\PropertyPathMapper->mapFormsToData(object(RecursiveIteratorIterator), object(Article))
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 623
at Symfony\Component\Form\Form->submit(array('post' => array('name' => 'dfdfdfd', 'text' => 'dfdfdfd', 'file' => object(UploadedFile)), 'author' => 'dfdfdf'), true)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 567
at Symfony\Component\Form\Form->submit(array('article' => array('post' => array('name' => 'dfdfdfd', 'text' => 'dfdfdfd', 'file' => object(UploadedFile)), 'author' => 'dfdfdf'), 'event' => array('eventDate' => array('date' => array('year' => '2012', 'month' => '1', 'day' => '1'), 'time' => array('hour' => '0', 'minute' => '0')))), true)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/HttpFoundation/HttpFoundationRequestHandler.php line 113
at Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationRequestHandler->handleRequest(object(Form), object(Request))
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 489
at Symfony\Component\Form\Form->handleRequest(object(Request))
in /var/www/filadelfia/src/AppBundle/Controller/Admin/PostAdminController.php line 58
at AppBundle\Controller\Admin\PostAdminController->newAction(object(Request))
in line
at call_user_func_array(array(object(PostAdminController), 'newAction'), array(object(Request)))
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php line 144
at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php line 64
at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/ContainerAwareHttpKernel.php line 69
at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
in /var/www/filadelfia/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php line 185
at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
in /var/www/filadelfia/web/app_dev.php line 20