Symfony 3 表单类型错误 - Symfony 3 form type error

Symfony 3 form type error

本文关键字：错误类型表单 Symfony | 更新日期: 2023-09-27

我有带有字段的实体"新闻"：

/**
 * @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(),
    ));
}

当我尝试调用此方法（"createNewsAction"）时，我收到错误：

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));
                }
            }

我用这段代码做错了什么？

检查控制器顶部的use语句...
您可能已经使用过：

use Doctrine'DBAL'Types'TextType

它应该是：

use Symfony'Component'Form'Extension'Core'Type'TextType;