我有一个包含3个层的表单: 第一层是游戏容器:
class GameListType extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder->add('games', 'collection', array(
'required' => false,
'allow_add' => true,
'prototype' => true,
'by_reference' => false,
'type' => new GameBetType(),
))
;
}
public function setDefaultOptions(OptionsResolverInterface $resolver) {
parent::setDefaultOptions($resolver);
$resolver->setDefaults(array(
'cascade_validation' => true,
));
}
}
第二层是游戏本身,因为我不打算改变游戏,而只是在其上下注,它仅包括下注的表单:
class GameBetType extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder->add('bet', new BetType());
}
public function setDefaultOptions(\Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver) {
parent::setDefaultOptions($resolver);
$resolver->setDefaults(array(
'data_class' => 'Strego\TippBundle\Entity\Game',
'cascade_validation' => true,
));
}
}
第三层是下注表单:
class BetType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('scoreT1' , 'text')
->add('scoreT2' , 'text');
;
}
public function setDefaultOptions(\Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver) {
parent::setDefaultOptions($resolver);
$resolver->setDefaults(array(
'data_class' => 'Strego\TippBundle\Entity\Bet',
));
}
}
问题在于,如果第三级有验证约束条件,根表单始终有效,但是如果我专门验证赌注实体,则可以在我的控制器中获得正确的违规列表:
// Form processing
$form = $this->createForm(new GameListType(), $entity);
$request = $this->getRequest();
if ($request->getMethod() == 'POST') {
$form->bind($request);
$entity = $form->getData();
if ($form->isValid()) {
foreach ($entity->getGames() as $game) {
if($game->hasBet()){
$bet = $game->getBet();
$bet->setUser($user);
$validator = $this->container->get('validator');
$errors = $validator->validate($bet);
var_dump($errors) //<-- i see there are errors
if(count($errors) == 0){
print($bet. ' gets persisted<br>');
$em->persist($bet);
}
}
}
$em->flush();
}
}
另一个问题是即使我不调用
$em->persist($bet)
,实体仍然会被持久化。我没有看到第8行描述的输出。print($bet.'gets persisted<br>');
但表单输入仍然被保留在数据库中。
所以我的两个问题:
如果验证失败,如何获取错误信息并将其传递给表单(我不希望整个表单无效,因为可能只有3个中的1个下注无效)?
为什么即使我没有调用
$em-persist($bet)
,下注也会被保留,这是绑定过程中发生的魔术吗?