当使用VichUploaderBundle上传任何文件时,此断言正在传递Symfony的表单验证:
/**
* @Vich\UploadableField(mapping="product_media", fileNameProperty="path")
* @Assert\File(
* mimeTypes = {"image/jpeg", "image/gif", "image/png", "video/mp4", "video/quicktime", "video/avi"},
* mimeTypesMessage = "Wrong file type (jpg,gif,png,mp4,mov,avi)"
* )
* @var File $pathFile
*/
protected $pathFile;
我看不出断言的问题。如何使用VichUploader验证文件类型?
答案 0 :(得分:3)
您可以使用验证回调来解决此问题。
/**
* @ORM\Entity(repositoryClass="AppBundle\Entity\Repository\EntityRepository")
* @ORM\Table(name="entity")
* @Assert\Callback(methods={"validate"})
* @Vich\Uploadable
*/
class Entity
{
/**
* @Assert\File(maxSize="10M")
* @Vich\UploadableField(mapping="files", fileNameProperty="fileName")
*
* @var File $file
*/
protected $file;
/**
* @ORM\Column(type="string", length=255, name="file_name", nullable=true)
*
* @var string $fileName
*/
protected $fileName;
...
/**
* @param ExecutionContextInterface $context
*/
public function validate(ExecutionContextInterface $context)
{
if (! in_array($this->file->getMimeType(), array(
'image/jpeg',
'image/gif',
'image/png',
'video/mp4',
'video/quicktime',
'video/avi',
))) {
$context
->buildViolation('Wrong file type (jpg,gif,png,mp4,mov,avi)')
->atPath('fileName')
->addViolation()
;
}
}
}
答案 1 :(得分:3)
对于Symfony 4.0,您需要导入Validator组件
composer require validator
现在,在您的Entity类中,您可以使用@Assert注释。
// src/Entity/Author.php
// ...
use Symfony\Component\Validator\Constraints as Assert;
class Author
{
/**
* @Assert\NotBlank()
*/
public $name;
}
您可能需要在config / packages / framework.yaml文件中添加一些配置。无论如何,所有这些都在Symfony官方文档中得到了很好的解释。
http://symfony.com/doc/current/validation.html
要检查mime类型,您需要使用文件约束http://symfony.com/doc/current/reference/constraints/File.html
这是一个工作例子
/**
* @ORM\Column(type="string", length=255)
* @var string
*/
private $cvFilename;
/**
* @Assert\File(
* maxSize = "2048k",
* mimeTypes = {"application/pdf", "application/x-pdf"},
* mimeTypesMessage = "Please upload a valid PDF"
* )
* @Vich\UploadableField(mapping="cv", fileNameProperty="cvFilename")
* @var File
*/
private $cvFile;
现在,@ Vich \ UploadableField anotation中有一个mime和size选项,如此处所述https://github.com/dustin10/VichUploaderBundle/blob/master/Resources/doc/usage.md#step-2-link-the-upload-mapping-to-an-entity 但是我无法让它发挥作用。
@Assert注释将生成表单错误,您可以在Twig中检索它们以提供反馈。
关键是使用:form_errors(candidature_form.cvFile)
这是一个工作示例:
{% set error_flag = form_errors(candidature_form.cvFile) %}
<label class=" {% if error_flag %}has-error{% endif %}">
Curriculum Vitae (PDF)
</label>
{{ form_widget(candidature_form.cvFile) }}
{% if error_flag %}
<div class="has-error">
{{ form_errors(candidature_form.cvFile) }}
</div>
{% endif %}
答案 2 :(得分:0)
对于 Symfony 3.0 + ,只需要完成两件事:
添加use语句以导入 ExecutionContextInterface 。
回调注释必须直接添加到方法/函数而不是类中。
use Symfony\Component\Validator\Context\ExecutionContextInterface;
/**
* @Assert\File(maxSize="2M")
* @Vich\UploadableField(mapping="profile_image", fileNameProperty="avatar")
* @var File
*/
private $imageFile;
/**
* @ORM\Column(length=255, nullable=true)
* @var string $avatar
*/
protected $avatar;
/**
* @Assert\Callback
* @param ExecutionContextInterface $context
*/
public function validate(ExecutionContextInterface $context, $payload)
{
// do your own validation
if (! in_array($this->imageFile->getMimeType(), array(
'image/jpeg',
'image/gif',
'image/png'
))) {
$context
->buildViolation('Wrong file type (only jpg,gif,png allowed)')
->atPath('imageFile')
->addViolation();
}
}
答案 3 :(得分:0)
对于Symfony 4.x,此解决方案不起作用。我不知道为什么断言或事件验证器从不调用...
我已经找到了解决方案:Validation doesn't work on relation fields
use Symfony\Component\Validator\Constraints\File;
/* ... */
->add('ba_file', VichFileType::class, [
'label' => 'Bon d\'adhésion (PDF file)',
'required' => false,
'constraints' => [
new File([
'maxSize' => '5M',
'mimeTypes' => [
'image/jpeg',
'image/gif',
'image/png',
]
])
]
])