/**
  * {@inheritdoc}
  */
 public function execute(BlockContextInterface $blockContext, Response $response = null)
 {
     $revisions = array();
     foreach ($this->auditReader->findRevisionHistory($blockContext->getSetting('limit'), 0) as $revision) {
         $revisions[] = array('revision' => $revision, 'entities' => $this->auditReader->findEntitesChangedAtRevision($revision->getRev()));
     }
     return $this->renderResponse($blockContext->getTemplate(), array('block' => $blockContext->getBlock(), 'settings' => $blockContext->getSettings(), 'revisions' => $revisions), $response);
 }
 /**
  * {@inheritdoc}
  */
 public function findRevisionHistory($className, $limit = 20, $offset = 0)
 {
     return $this->auditReader->findRevisionHistory($limit, $offset);
 }