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我想使用文件验证器来限制文件输入的MIME类型。不幸的是，这个约束从来没有使用过，所有的文件都被接受为什么Symfony文件验证器不起作用
namespace WNC\SoldierBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* WNC\SoldierBundle\Entity\Soldier
*
* @ORM\Table(name="soldier")
* @ORM\Entity(repositoryClass="WNC\SoldierBundle\Entity\SoldierRepository")
* @ORM\HasLifecycleCallbacks()
*/
class Soldier
{
/**
* @var string $picture
* @Assert\Image()
* @ORM\Column(name="picture", type="string", length=255)
*/
private $picture;
/**
* @var string $file
*
* @Assert\Image()
* @Assert\NotBlank()
*/
public $file;
public function getAbsolutePath()
{
return null === $this->picture ? null : $this->getUploadRootDir().'/'.$this->picture;
}
public function getWebPath()
{
return null === $this->picture ? null : $this->getUploadDir().'/'.$this->picture;
}
protected function getUploadRootDir()
{
// the absolute directory path where uploaded documents should be saved
return __DIR__.'/../../../../web/'.$this->getUploadDir();
}
protected function getUploadDir()
{
// get rid of the __DIR__ so it doesn't screw when displaying uploaded doc/image in the view.
return 'uploads/pictures';
}
/**
* @ORM\PrePersist()
* @ORM\PreUpdate()
*/
public function preUpload()
{
if($this->picture && file_exists($this->getAbsolutePath())) {
unlink($this->getAbsolutePath());
}
if (null !== $this->file) {
// do whatever you want to generate a unique name
$this->picture = uniqid().'.'.$this->file->guessExtension();
}
}
/**
* @ORM\PostPersist()
* @ORM\PostUpdate()
*/
public function upload()
{
if (null === $this->file) {
return;
}
// if there is an error when moving the file, an exception will
// be automatically thrown by move(). This will properly prevent
// the entity from being persisted to the database on error
$this->file->move($this->getUploadRootDir(), $this->picture);
}
/**
* @ORM\PostRemove()
*/
public function removeUpload()
{
if ($file = $this->getAbsolutePath()) {
unlink($file);
}
}
}
表单生成器：
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('mothers_name')
->add('service_end_date', 'date',array(
'widget' => 'single_text',
'format' => 'MM/dd/yyyy',
'attr' => array('class' => 'date six columns')
))
->add('army_unit')
->add('city', 'city_selector')
->add('gender', 'choice', array(
'choices' => array(0 => 'Male', 1 => 'Female'),
'required' => false,
'expanded' => true,
'label' => 'Male/Female',
'data' => 0
))
->add('file','file', array(
'data_class' => 'Symfony\Component\HttpFoundation\File\File',
'label' => 'Picture'
))
->add('self_description', 'textarea')
->add('video', null, array(
'attr' => array(
'placeholder' => 'some link here'
)))
->add('wants_to_contact', null, array(
'label' => Soldier::getLabel('wants_to_contact')
))
->add('comments', 'textarea')
->add('user', new NameFormType('Application\Sonata\UserBundle\Entity\User'))
->add('city', 'city_selector')
;
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'validation_groups' => array('Registration'),
'cascade_validation' => true,
));
}
public function getName()
{
return 'wnc_soldierbundle_soldiertype';
}
控制器：
/**
* Creates a new Soldier entity.
*
* @Route("/create", name="soldier_create")
* @Method("POST")
* @Template("WNCSoldierBundle:Soldier:new.html.twig")
*/
public function createAction(Request $request)
{
$entity = new Soldier();
$form = $this->createForm(new SoldierType(), $entity);
$form->bind($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('soldier_show', array('id' => $entity->getId())));
}
return array(
'entity' => $entity,
'form' => $form->createView(),
);
}
不同的主题：我已经注意到你有与路径相同的问题，你可能想检查一下：http://stackoverflow.com/questions/12168086/how-to-deal-with-relative-paths -in-symfony-2 – ChocoDeveloper
谢谢，但保存工作无懈可击，但我无法找到验证无效的原因。也许是因为它只是一个虚拟的字段没有用作db列？ –
我刚刚创建了一个使用此断言的测试应用程序，它工作正常。非图像出现错误，图像通过。这是在Symfony2.1上。你的表单构建器是什么样的？ – Kris