我有一个实体"新闻",它包含以下字段:
当我尝试调用这个方法("createNewsAction")时,我收到了错误提示:
这段代码有什么问题?
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\Column(type="string", length=100)
*/
protected $name;
/**
* @ORM\Column(type="text")
*/
protected $description;
我在控制器中生成表单:
public function createNewsAction(Request $request)
{
$news = new News();
$news->setName('New!');
$news->setDescription('test');
$form = $this->createFormBuilder($news)
->add('name', TextType::class)
->add('description', TextType::class)
->add('save', SubmitType::class, array('label' => 'Create Task'))
->getForm();
return $this->render('frontend/createNews.html.twig', array(
'form' => $form->createView(),
));
}
当我尝试调用这个方法("createNewsAction")时,我收到了错误提示:
Could not load type "Doctrine\DBAL\Types\TextType"
500 Internal Server Error - InvalidArgumentException
Stack Trace
in vendor\symfony\symfony\src\Symfony\Component\Form\FormRegistry.php at line 87 -
if (class_exists($name) && in_array('Symfony\Component\Form\FormTypeInterface', class_implements($name))) {
$type = new $name();
} else {
throw new InvalidArgumentException(sprintf('Could not load type "%s"', $name));
}
}
这段代码有什么问题?