PurgeVersionsCommand.php

<?php

namespace ExampleBundle\Command;

use eZ\Publish\API\Repository\Values\Content\Query;
use eZ\Publish\Core\Repository\Values\User\UserReference;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Helper\ProgressBar;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class PurgeVersionsCommand extends ContainerAwareCommand
{
    protected function configure()
    {
        parent::configure();

        $this->setName('example:purge-versions');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        /** @var $repository \eZ\Publish\API\Repository\Repository */
        $repository = $this->getContainer()->get('ezpublish.api.repository');
        $repository->getPermissionResolver()->setCurrentUserReference(new UserReference(14));

        // We use legacy here to make sure we traverse all content as items might not be indexed yet by other
        // search engines
        // TODO: replace when correct api available
        $searchHandler = $this->getContainer()->get('ezpublish.spi.search.legacy');

        $query = new Query();
        $query->limit = 0;

        $searchResult = $searchHandler->findContent($query);
        $nbResults = $searchResult->totalCount;

        $pageSize = 100;
        $query->limit = $pageSize;

        $progress = new ProgressBar($output, $nbResults);

        while ($searchHits = $searchHandler->findContent($query)->searchHits) {
            foreach ($searchHits as $searchHit) {
                $contentInfo = $repository->getContentService()->loadContentInfo($searchHit->valueObject->id);
                $versions = $repository->getContentService()->loadVersions($contentInfo);
                foreach ($versions as $versionInfo) {
                    if ($versionInfo->versionNo !== $contentInfo->currentVersionNo) {
                        $repository->getContentService()->deleteVersion($versionInfo);
                    }
                }

                $progress->advance();
            }
            $query->offset += $pageSize;
            if ($query->offset > $nbResults) {
                break;
            }
        }

        $progress->finish();
    }
}