public function revertToDraft($blocks) { $single = !is_array($blocks) && $blocks instanceof BlockInterface; if ($single) { $blocks = array($blocks); } foreach ($blocks as $key => $block) { $currentRevision = $this->revisionManager->getCurrentRevision($block); $latestRevision = $this->revisionManager->getLatestRevision($block); if ($latestRevision !== false && $currentRevision < $latestRevision) { try { $this->revisionManager->revert($block, $latestRevision); } catch (DeletedException $e) { unset($blocks[$key]); } } } return $single ? array_shift($blocks) : $blocks; }