这是我的表单类型:
class TestFormType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('thumbnail', 'hidden', array(
'label' => 'Thumbnail',
'label_attr' => array(
'class' => 'col-xs-2 control-label'
),
'required' => false,
'error_bubbling' => true,
'required' => false
));
$builder->add('thumbnail_data', 'file', array(
'error_bubbling' => true,
'required' => false
));
}
public function setDefaultOptions(\Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'X\LibraryBundle\Entity\Test',
'cascade_validation' => true,
'error_bubbling' => true,
));
}
public function getName()
{
return 'test';
}
}
这里是实体,重要的部分是setThumbnailData($file)方法,它存储缩略图文件,并通过setThumbnail(string)方法设置缩略图路径。
<?php
namespace X\LibraryBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Test
*
* @ORM\Table(name="test")
* @ORM\Entity(repositoryClass="X\LibraryBundle\Repository\TestRepository")
*/
class Test
{
/**
* @ORM\Column(name="id", type="integer", nullable=false)
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\Column(type="text", nullable=true)
*/
protected $thumbnail;
/**
* Set thumbnail
*
* @param string $thumbnail
* @return Test
*/
public function setThumbnail($thumbnail)
{
$this->thumbnail = $thumbnail;
return $this;
}
/**
* Get thumbnail
*
* @return string
*/
public function getThumbnail()
{
return $this->thumbnail;
}
/**
* This will save file to disk
* @param $file
*/
public function setThumbnailData($file) {
if($file !== null && $file !== false)
{
$fileName = $file->getClientOriginalName();
$baseDir = __DIR__ . '/../../../../../../../web/uploads/promotional_material/';
$dir = sha1(microtime());
while (is_dir($baseDir . $dir)) {
$dir = sha1(microtime());
}
mkdir($baseDir . $dir);
$this->setThumbnail('/uploads/promotional_material/' . $dir . '/' . $fileName);
$file->move($baseDir . $dir, $fileName);
}
}
public function getThumbnailData() {
return '';
}
}
现在的问题是,如果表单遇到验证错误,则以下树枝行会产生不同的输出,第二行输出正确的值,另一行产生原始缩略图路径。因此,如果我使用 {{ form_widget(form.thumbnail) }} 输出缩略图输入,我会得到原始缩略图路径,而不是应该通过 setThumbnailData() 方法更改的路径。
{{ dump(form.thumbnail.vars.data) }}
{{ dump(form.vars.data.thumbnail) }}
问题是否是由于使用 setThumbnailData() 方法设置缩略图引起的?除了像这样在树枝中硬编码输入之外,不知道如何解决这个问题:
<input type="hidden" name="test[thumbnail]" value="{{ form.vars.value.thumbnail }}"/>