forms - Symfony2 绑定(bind)后抛出表单错误

Question

我想在绑定(bind)表单后抛出一个错误。这是我的代码:

$form = $this->createFormBuilder()
            ...
            ->add('date', 'birthday', array(
                'years' => range($year_18-90, $year_18),
                'empty_value' => array('year' => $year_18-16)
            ))->getForm;

//Post and valid 
if ($form->isValid()) {
            $formData = $form->getData();
            if ($formData['date']->getTimestamp() > $date_18) {
                //if user is under 18, then throw an error in from 'date' / ' birthday'
            }

在 Method-Post 之后我如何在 symfony2 中完成它？

Answer 1

是的，你可以这样做:

use Symfony\Component\Form\FormError;
//...
$dateError = new FormError("Age must be greater than 18");
$form->get('date')->addError($dateError);