Forms 将错误绑定到symfony2'中的嵌入表单字段；s控制器

使用Symfony2.3.4

正如标题所解释的，我需要将错误消息绑定到嵌入的表单字段，最好是在控制器中。我的想法可能与我使用单一表单的方式类似：

use Symfony\Component\Form\FormError;
//....
public function createAction(){
//.....
$postData = current($request->request->all());

if ($postData['field_name'] == '') {
            $error = new FormError("Write some stuff in here");
            $form->get('field_name')->addError($error);
        }
//.....
}

或者也许应该换一种方式我需要帮助

---

谢谢$

我明白了，您试图在表单字段不包含任何值时显示消息。您可以在表单类中轻松完成此操作，如下所示：

buildForm(FormBuilderInterface $builder, array $options) {
    $builder->add('field_name', 'text', array(
        'label' => 'Field label',
        'required' => true,
        'constraints' => array(
            new NotBlank(array('message' => 'Write some stuff in here.'))
         ),
    ));
}

public function setDefaultOptions(OptionsResolverInterface $resolver){
    $resolver->setDefaults(array(
        'your_custom_option_key' => '',
    ));
}

buildForm(FormBuilderInterface $builder, array $options) {
    $options['your_custom_option_key']; // Access content of your option

    // The rest of code omitted.
}

如果需要向表单中注入其他类型的约束，而该约束不是Symfony2框架的一部分，则可以

如果要在controller中向窗体添加一些选项，可以通过设置自己的选项来创建窗体的方法来完成：

class YourController {
    public function createForm(YourEntity $yourEntity){
        $form = $this->createForm(new YourFormType(), $yourFormType, array(
            'action' => $this->generateUrl('your_action_name', 
            array('your_custom_option_key' => 'Your custom option value')),
            'method' => 'POST',
        ));

        return $form;
    }

    // Rest of code omitted.
}

之后，您需要在表单类的

setDefaultOptions（OptionsResolverInterface$resolver）

方法中添加一个选项，如下所示：

buildForm(FormBuilderInterface $builder, array $options) {
    $builder->add('field_name', 'text', array(
        'label' => 'Field label',
        'required' => true,
        'constraints' => array(
            new NotBlank(array('message' => 'Write some stuff in here.'))
         ),
    ));
}

public function setDefaultOptions(OptionsResolverInterface $resolver){
    $resolver->setDefaults(array(
        'your_custom_option_key' => '',
    ));
}

buildForm(FormBuilderInterface $builder, array $options) {
    $options['your_custom_option_key']; // Access content of your option

    // The rest of code omitted.
}

然后在

buildForm（FormBuilderInterface$builder，array$options）

方法中访问它，如下所示：

buildForm(FormBuilderInterface $builder, array $options) {
    $builder->add('field_name', 'text', array(
        'label' => 'Field label',
        'required' => true,
        'constraints' => array(
            new NotBlank(array('message' => 'Write some stuff in here.'))
         ),
    ));
}

public function setDefaultOptions(OptionsResolverInterface $resolver){
    $resolver->setDefaults(array(
        'your_custom_option_key' => '',
    ));
}

buildForm(FormBuilderInterface $builder, array $options) {
    $options['your_custom_option_key']; // Access content of your option

    // The rest of code omitted.
}