findMediaById example

    /** * @throws MediaException */
    public function persistFileToMedia(
        MediaFile $mediaFile,
        string $destination,
        string $mediaId,
        Context $context
    ): void {
        $currentMedia = $this->findMediaById($mediaId, $context);
        $destination = $this->validateFileName($destination);
        $this->ensureFileNameIsUnique(
            $currentMedia,
            $destination,
            $mediaFile->getFileExtension(),
            $context
        );

        $this->validateFileExtension($mediaFile, $mediaId, $currentMedia->isPrivate());

        $this->removeOldMediaData($currentMedia, $context);

        

private readonly FilesystemOperator $filesystemPublic,
        private readonly FilesystemOperator $filesystemPrivate,
        private readonly UrlGeneratorInterface $urlGenerator,
        private readonly EntityRepository $mediaRepository,
        private readonly StreamFactoryInterface $streamFactory
    ) {
        $this->fileNameValidator = new FileNameValidator();
    }

    public function loadMediaFile(string $mediaId, Context $context): string
    {
        $media = $this->findMediaById($mediaId, $context);

        return $this->getFileSystem($media)->read($this->getFilePath($media)) ?: '';
    }

    public function loadMediaFileStream(string $mediaId, Context $context): StreamInterface
    {
        $media = $this->findMediaById($mediaId, $context);
        $resource = $this->getFileSystem($media)->readStream($this->getFilePath($media));

        return $this->streamFactory->createStreamFromResource($resource);
    }