Neos\Media\Command\MediaCommandController::clearThumbnailsCommand PHP Метод

    public function clearThumbnailsCommand($preset = null)
    {
        if ($preset !== null) {
            $thumbnailConfiguration = $this->thumbnailService->getThumbnailConfigurationForPreset($preset);
            $thumbnailConfigurationHash = $thumbnailConfiguration->getHash();
            $thumbnailCount = $this->thumbnailRepository->countByConfigurationHash($thumbnailConfigurationHash);
            $iterator = $this->thumbnailRepository->findAllIterator($thumbnailConfigurationHash);
        } else {
            $thumbnailCount = $this->thumbnailRepository->countAll();
            $iterator = $this->thumbnailRepository->findAllIterator();
        }
        $this->output->progressStart($thumbnailCount);
        foreach ($this->thumbnailRepository->iterate($iterator) as $thumbnail) {
            $this->thumbnailRepository->remove($thumbnail);
            $this->output->progressAdvance(1);
        }
    }