管理员的奏鸣曲媒体验证
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【中文标题】管理员的奏鸣曲媒体验证【英文标题】：Sonata media validation at admin 【发布时间】：2016-06-12 00:03:28 【问题描述】：我正在尝试验证图像。我看到了答案 Sonata Media: The file could not be found
如何验证图像（宽度和高度）。 我需要帮助。网络中没有合适的文档。
【问题讨论】：
【参考方案1】：要使用奏鸣曲媒体验证图像尺寸，您需要覆盖奏鸣曲媒体的ImageProvider 类，奏鸣曲使用此类来处理图像操作。如果您已经有奏鸣曲媒体包的extended bundle，那么在 services.yml 文件中您可以如下定义您自己的提供程序，确保您的 yml 文件包含在 main config.yml 中
parameters:
sonata.media.provider.file.class: Application\Sonata\MediaBundle\Provider\ImageProvider
现在创建您的提供程序并使用奏鸣曲媒体的 ImageProvider 覆盖器 validate() 函数扩展它并定义您自己的验证，或者可以覆盖 buildCreateForm()/buildEditForm() 并为 binaryContent 字段定义您的断言
命名空间 Application\Sonata\MediaBundle\Provider;
//... other uses classes
use Sonata\MediaBundle\Provider\ImageProvider as BaseProvider;
class ImageProvider extends BaseProvider
public function __construct($name, Filesystem $filesystem, CDNInterface $cdn, GeneratorInterface $pathGenerator, ThumbnailInterface $thumbnail, array $allowedExtensions = array(), array $allowedMimeTypes = array(), MetadataBuilderInterface $metadata = null)
parent::__construct($name, $filesystem, $cdn, $pathGenerator, $thumbnail);
$this->allowedExtensions = $allowedExtensions;
$this->allowedMimeTypes = $allowedMimeTypes;
$this->metadata = $metadata;
/**
* @inheritdoc
*/
public function validate(ErrorElement $errorElement, MediaInterface $media)
if (!$media->getBinaryContent() instanceof \SplFileInfo)
return;
if ($media->getBinaryContent() instanceof UploadedFile)
$fileName = $media->getBinaryContent()->getClientOriginalName();
elseif ($media->getBinaryContent() instanceof File)
$fileName = $media->getBinaryContent()->getFilename();
else
throw new \RuntimeException(sprintf('Invalid binary content type: %s', get_class($media->getBinaryContent())));
if (!in_array(strtolower(pathinfo($fileName, PATHINFO_EXTENSION)), $this->allowedExtensions))
$errorElement
->with('binaryContent')
->addViolation('Invalid extensions')
->end();
if (!in_array($media->getBinaryContent()->getMimeType(), $this->allowedMimeTypes))
$errorElement
->with('binaryContent')
->addViolation('Invalid mime type : ' . $media->getBinaryContent()->getMimeType())
->end();
if ($media->getWidth() > '1280' || $media->getHeight() > 1280)
$errorElement
->with('binaryContent')
->addViolation('Invalid File Dimension : Please upload 1280px * (1280px) image')
->end();
【讨论】：
我们不能使用这个。它改变了整个验证。同时使用多个实体（使用奏鸣曲媒体）。如何验证？ 根据您的回答，我使用了 buildCreateForm() 但我有问题，请检查链接。 ***.com/questions/38308774/…【参考方案2】：此代码对我有用。 仅在 MyBundle（此处为 AppBundle）中使用 SonataMedia 时。我在 SonataUserBundle(Application\Sonata\UserBundle\Entity) 中使用了相同的代码。但是失败了。
实体：
<?php
// To reduce code i deleted many lines
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Gedmo\Mapping\Annotation as Gedmo;
/**
* FZHomeSlider
*
* @ORM\Table(name="fz__home_slider")
* @ORM\Entity(repositoryClass="AppBundle\Repository\FZHomeSliderRepository")
* @ORM\HasLifecycleCallbacks()
* @Assert\Callback(methods= "isMediaSizeValid" )
*/
class FZHomeSlider
const FILE_PATH = 'image';
const FILE_SIZE = 200; # kb
const FILE_MIN_WIDTH = 1024;
const FILE_MAX_WIDTH = 1024;
const FILE_MIN_HEIGHT = 250;
const FILE_MAX_HEIGHT = 250;
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\OneToOne(targetEntity="Application\Sonata\MediaBundle\Entity\Media" )
* @ORM\JoinColumns( @ORM\JoinColumn( referencedColumnName="id", onDelete="CASCADE" ) )
* @Assert\NotNull()
*/
private $image;
/**
* Set image
*
* @param \Application\Sonata\MediaBundle\Entity\Media $image
*
* @return FZHomeSlider
*/
public function setImage(\Application\Sonata\MediaBundle\Entity\Media $image = null)
$this->image = $image;
return $this;
/**
* Get image
*
* @return \Application\Sonata\MediaBundle\Entity\Media
*/
public function getImage()
return $this->image;
/**
* @param ExecutionContextInterface $context Description
*/
public function isMediaSizeValid(ExecutionContextInterface $context)
$this->fzValidateImage($context, $this->getImage());
private function fzValidateImage($context, $f)
if ($f == NULL)
$context->buildViolation('Please select an image.')->atPath(self::FILE_PATH)->addViolation();
else if ($f->getSize() > (self::FILE_SIZE * 1024))
$context->buildViolation('The file is too large ( %a% kb). Allowed maximum size is %b% kb.')->atPath(self::FILE_PATH)->setParameters(['%a%' => intval($f->getSize() / 1024), '%b%' => self::FILE_SIZE])->addViolation();
else if ($f->getWidth() < self::FILE_MIN_WIDTH)
$context->buildViolation('The image width is too small ( %a% px). Minimum width expected is %b% px.')->atPath(self::FILE_PATH)->setParameters(['%a%' => $f->getWidth(), '%b%' => self::FILE_MIN_WIDTH])->addViolation();
else if ($f->getWidth() > self::FILE_MAX_WIDTH)
$context->buildViolation('The image width is too big ( %a% px). Allowed maximum width is %b% px.')->atPath(self::FILE_PATH)->setParameters(['%a%' => $f->getWidth(), '%b%' => self::FILE_MAX_WIDTH])->addViolation();
else if ($f->getHeight() < self::FILE_MIN_HEIGHT)
$context->buildViolation('The image height is too small ( %a% px). Minimum height expected is %b% px.')->atPath(self::FILE_PATH)->setParameters(['%a%' => $f->getHeight(), '%b%' => self::FILE_MIN_HEIGHT])->addViolation();
else if ($f->getHeight() > self::FILE_MAX_HEIGHT)
$context->buildViolation('The image height is too big ( %a% px). Allowed maximum height is %b% px.')->atPath(self::FILE_PATH)->setParameters(['%a%' => $f->getHeight(), '%b%' => self::FILE_MAX_HEIGHT])->addViolation();
在管理员中：
$formMapper
->with('Media')
->add('image', 'sonata_type_model_list', ['btn_delete' => false, 'help' => self::$FORM_IMG_HELP, 'required' => false], ['link_parameters' => ['provider' => 'sonata.media.provider.image', 'context' => 'home_slider']])->end()
最终解决和解决方案：
根据Sonata Admin Doc
用户管理员
public function getFormBuilder()
$this->formOptions['data_class'] = $this->getClass();
$options = $this->formOptions;
$options['validation_groups'] = "";
$formBuilder = $this->getFormContractor()->getFormBuilder($this->getUniqid(), $options);
$this->defineFormBuilder($formBuilder);
return $formBuilder;
public function validate(ErrorElement $errorElement, $object)
// throw new \Exception("bingo");
$errorElement
->with('phone')
->assertLength(['min' => 10, 'max' => '14', 'minMessage' => "Phone number must be at least limit characters long", 'maxMessage' => "Phone number cannot be longer than limit characters"])
->end()
;
此处验证电话仅供参考。您也可以使用 validation.yml 文件进行验证。
Application/Sonata/UserBundle/Resources/config/validation.yml
Application\Sonata\UserBundle\Entity\User:
properties:
phone:
- Length:
min: 10
minMessage: "Phone number must be at least limit characters long"
max: 13
maxMessage: "Phone number cannot be longer than limit characters"
- Regex:
pattern: "/^[\d]10,13$/"
biography:
- Length:
min: 5
minMessage: "Biography must be at least limit characters long"
max: 7
maxMessage: "Biography cannot be longer than limit characters"
# image:
# - Image validation is done in Entity
【讨论】：
$options['validation_groups'] = "";是主要的。 你能用一个针对初始问题的工作示例来完成你的最终答案吗？谢谢 @jjgarcía AppBundle\Entity\FZHomeSlider 检查注释行 * @Assert\Callback(methods= "isMediaSizeValid" ) 这指向函数/方法 isMediaSizeValid。在 ADMIN AppBundle\Admin\FZHomeSliderAdmin 看到 getFormBuilder()$options['validation_groups'] = "";。我解决了这个问题，上面有完整的代码，如果有人需要更多详细信息，请告诉我.. @jjgarcía 类 FZHomeSliderAdmin 扩展 Admin 。这里 Admin 在这个 validation_group 中有 getFormBuilder() 给我带来了问题。所以我删除了我的 FZHomeSliderAdmin 中的所有验证组，只需从 Admin 重复 getFormBuilder() .. 我认为你对这个逻辑感到困惑..【参考方案3】： * @Assert\Image(
* minWidth = 200,
* maxWidth = 400,
* minHeight = 200,
* maxHeight = 400
* )
您可以为Entity添加Assert注解。看：http://symfony.com/doc/current/reference/constraints/Image.html
【讨论】：
注释验证在 SonataMedia 字段中不起作用。以上是关于管理员的奏鸣曲媒体验证的主要内容，如果未能解决你的问题，请参考以下文章