我正在使用 Symfony2 表单组件来构建和验证表单。现在我需要基于单个字段值设置验证器组,不幸的是,似乎每个示例都基于实体 - 由于多种原因,我没有使用实体。
示例:如果任务为空,则应删除所有约束验证器,但如果不是,则应使用默认的验证器集(或验证器组)。
换句话说,我想要实现的是使子表单成为可选的,但如果填充了关键字段,仍然会被验证。
有人可以给我一个如何配置它的例子吗?
<?php
namespace CoreBundle\Form\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Component\Validator\Constraints as Assert;
use CoreBundle\Form\Type\ItemGroupOption;
class ItemGroup extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('title', 'text', array(
'label' => 'Titel',
'attr' => array('class' => 'span10 option_rename'),
'required' => false
));
$builder->add('max_selections', 'integer', array(
'label' => 'Max tilvalg',
'constraints' => array(new Assert\Type('int', array('groups' => array('TitleProvided')))),
'attr' => array('data-default' => 0)
));
$builder->add('allow_multiple', 'choice', array(
'label' => 'Tillad flere valg',
'constraints' => array(new Assert\Choice(array(0,1))),
'choices' => array(0 => 'Nej', 1 => 'Ja')
));
$builder->add('enable_price', 'choice', array(
'label' => 'Benyt pris',
'constraints' => array(new Assert\Choice(array(0,1))),
'choices' => array(0 => 'Nej', 1 => 'Ja'),
'attr' => array('class' => 'option_price')
));
$builder->add('required', 'choice', array(
'label' => 'Valg påkrævet',
'constraints' => array(new Assert\Choice(array(0,1))),
'choices' => array(0 => 'Nej', 1 => 'Ja')
));
$builder->add('options', 'collection', array(
'type' => new ItemGroupOption(),
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false
)
);
$builder->add('sort', 'hidden');
}
public function getName()
{
return 'item_group';
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
global $app;
$resolver->setDefaults(array(
'validation_groups' => function(FormInterface $form) use ($app) {
// Get submitted data
$data = $form->getData();
if (count($app['validator']->validateValue($data['title'], new Assert\NotBlank())) == 0) {
return array('TitleProvided');
} else {
return false;
}
},
));
}
}