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<?php |
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/* |
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* This file is part of the Sonata Project package. |
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* |
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* (c) Thomas Rabaix <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Sonata\MediaBundle\Form\DataTransformer; |
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use Psr\Log\LoggerAwareInterface; |
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use Psr\Log\LoggerAwareTrait; |
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use Psr\Log\NullLogger; |
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use Sonata\MediaBundle\Model\MediaInterface; |
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use Sonata\MediaBundle\Provider\Pool; |
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use Symfony\Component\Form\DataTransformerInterface; |
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class ProviderDataTransformer implements DataTransformerInterface, LoggerAwareInterface |
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{ |
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use LoggerAwareTrait; |
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/** |
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* @var Pool |
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*/ |
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protected $pool; |
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/** |
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* @var array |
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*/ |
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protected $options; |
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/** |
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* @param Pool $pool |
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* @param string $class |
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* @param array $options |
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*/ |
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public function __construct(Pool $pool, $class, array $options = []) |
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{ |
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$this->pool = $pool; |
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$this->options = $this->getOptions($options); |
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$this->class = $class; |
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$this->logger = new NullLogger(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function transform($value) |
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{ |
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if (null === $value) { |
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return new $this->class(); |
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} |
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return $value; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function reverseTransform($media) |
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{ |
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if (!$media instanceof MediaInterface) { |
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return $media; |
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} |
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$binaryContent = $media->getBinaryContent(); |
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// no binary |
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if (empty($binaryContent)) { |
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// and no media id |
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if (null === $media->getId() && $this->options['empty_on_new']) { |
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return; |
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} elseif ($media->getId()) { |
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return $media; |
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} |
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$media->setProviderStatus(MediaInterface::STATUS_PENDING); |
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$media->setProviderReference(MediaInterface::MISSING_BINARY_REFERENCE); |
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return $media; |
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} |
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// create a new media to avoid erasing other media or not ... |
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$newMedia = $this->options['new_on_update'] ? new $this->class() : $media; |
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$newMedia->setProviderName($media->getProviderName()); |
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$newMedia->setContext($media->getContext()); |
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$newMedia->setBinaryContent($binaryContent); |
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if (!$newMedia->getProviderName() && $this->options['provider']) { |
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$newMedia->setProviderName($this->options['provider']); |
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} |
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if (!$newMedia->getContext() && $this->options['context']) { |
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$newMedia->setContext($this->options['context']); |
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} |
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$provider = $this->pool->getProvider($newMedia->getProviderName()); |
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try { |
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$provider->transform($newMedia); |
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} catch (\Exception $e) { // NEXT_MAJOR: When switching to PHP 7+, change this to \Throwable |
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// #1107 We must never throw an exception here. |
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// An exception here would prevent us to provide meaningful errors through the Form |
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// Error message inspired from Monolog\ErrorHandler |
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$this->logger->error( |
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sprintf('Caught Exception %s: "%s" at %s line %s', get_class($e), $e->getMessage(), $e->getFile(), $e->getLine()), |
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['exception' => $e] |
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); |
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} |
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return $newMedia; |
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} |
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/** |
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* Define the default options for the DataTransformer. |
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* |
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* @param array $options |
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* |
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* @return array |
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*/ |
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protected function getOptions(array $options) |
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{ |
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return array_merge([ |
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'provider' => false, |
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'context' => false, |
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'empty_on_new' => true, |
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'new_on_update' => true, |
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], $options); |
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} |
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} |
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sonata-project /
SonataMediaBundle
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: