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<?php |
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namespace SumoCoders\FrameworkCoreBundle\ValueObject; |
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use Doctrine\ORM\Mapping as ORM; |
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use Symfony\Component\HttpFoundation\File\UploadedFile; |
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/** |
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* The following things are mandatory to use this class. |
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* |
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* You need to implement the method getUploadDir. |
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* When using this class in an entity certain life cycle callbacks should be called |
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* prepareToUpload for @ORM\PrePersist() and @ORM\PreUpdate() |
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* upload for @ORM\PostPersist() and @ORM\PostUpdate() |
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* remove for @ORM\PostRemove() |
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*/ |
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abstract class AbstractFile |
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{ |
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/** |
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* @var string |
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* @ORM\Column(type="string", length=255, nullable=true) |
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*/ |
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protected $fileName = null; |
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/** |
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* @var UploadedFile |
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*/ |
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protected $file; |
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/** |
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* @var string |
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*/ |
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protected $oldFileName; |
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/** |
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* @param string $fileName |
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*/ |
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protected function __construct($fileName) |
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{ |
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$this->fileName = $fileName; |
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} |
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/** |
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* @return string |
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*/ |
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public function getFileName() |
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{ |
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return $this->fileName; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getAbsolutePath() |
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{ |
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return $this->fileName === null ? null : $this->getUploadRootDir() . '/' . $this->fileName; |
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} |
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/** |
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* @return string |
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*/ |
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public function getWebPath() |
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{ |
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$file = $this->getAbsolutePath(); |
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if (is_file($file) && file_exists($file)) { |
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return '/' . $this->getUploadDir() . '/' . $this->fileName; |
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} |
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return ''; |
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} |
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/** |
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* @return string |
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*/ |
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protected function getUploadRootDir() |
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{ |
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// the absolute directory path where uploaded documents should be saved |
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return __DIR__ . '/../../../../web/' . $this->getTrimmedUploadDir(); |
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} |
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/** |
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* @return string |
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*/ |
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protected function getTrimmedUploadDir() |
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{ |
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return trim($this->getUploadDir(), '/\\'); |
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} |
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/** |
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* The dir in the web folder where the file needs to be uploaded. |
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* The base directory is always the src/Frontend/Files/ directory |
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* |
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* @return string |
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*/ |
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abstract protected function getUploadDir(); |
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/** |
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* Sets file. |
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* |
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* @param UploadedFile $file |
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* |
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* @return static |
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*/ |
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public function setFile(UploadedFile $file = null) |
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{ |
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if ($file === null) { |
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return $this; |
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} |
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$this->file = $file; |
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// check if we have an old image path |
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if ($this->fileName === null) { |
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return $this; |
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} |
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// store the old name to delete after the update |
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$this->oldFileName = $this->fileName; |
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$this->fileName = null; |
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return clone $this; |
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} |
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/** |
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* @param UploadedFile|null $uploadedFile |
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* |
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* @return static |
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*/ |
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public static function fromUploadedFile(UploadedFile $uploadedFile = null) |
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{ |
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$file = new static(null); |
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$file->setFile($uploadedFile); |
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return $file; |
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} |
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/** |
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* Get file. |
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* |
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* @return UploadedFile |
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*/ |
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public function getFile() |
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{ |
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return $this->file; |
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} |
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/** |
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* This function should be called for the life cycle events @ORM\PrePersist() and @ORM\PreUpdate() |
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*/ |
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public function prepareToUpload() |
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{ |
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if ($this->getFile() === null) { |
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return; |
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} |
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// do whatever you want to generate a unique name |
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$filename = sha1(uniqid(mt_rand(), true)); |
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$this->fileName = $filename . '.' . $this->getFile()->guessExtension(); |
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} |
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/** |
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* This function should be called for the life cycle events @ORM\PostPersist() and @ORM\PostUpdate() |
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*/ |
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public function upload() |
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{ |
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// check if we have an old image |
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if ($this->oldFileName !== null) { |
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// delete the old image |
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$oldFile = $this->getUploadRootDir() . '/' . $this->oldFileName; |
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if (is_file($oldFile) && file_exists($oldFile)) { |
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unlink($oldFile); |
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} |
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// clear the $this->oldFileName image path |
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$this->oldFileName = null; |
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} |
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if ($this->getFile() === null) { |
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return; |
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} |
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$this->writeFileToDisk(); |
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$this->file = null; |
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} |
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/** |
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* if there is an error when moving the file, an exception will |
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* be automatically thrown by move(). This will properly prevent |
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* the entity from being persisted to the database on error |
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*/ |
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protected function writeFileToDisk() |
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{ |
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$this->getFile()->move($this->getUploadRootDir(), $this->fileName); |
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} |
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/** |
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* This function should be called for the life cycle event @ORM\PostRemove() |
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*/ |
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public function remove() |
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{ |
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$file = $this->getAbsolutePath(); |
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if (!is_file($file) || !file_exists($file)) { |
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return; |
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} |
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unlink($file); |
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} |
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/** |
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* Returns a string representation of the image. |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return (string) $this->fileName; |
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} |
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/** |
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* @param string $fileName |
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* |
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* @return static |
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*/ |
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public static function fromString($fileName) |
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{ |
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return new static($fileName); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function jsonSerialize() |
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{ |
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return (string) $this->getWebPath(); |
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} |
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public function markForDeletion() |
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{ |
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$this->oldFileName = $this->fileName; |
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$this->fileName = null; |
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} |
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} |
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