/**
  * Collects all nodes with missing shadow nodes
  *
  * @param Workspace $workspace
  * @param boolean $dryRun
  * @param NodeType $nodeType
  * @return array
  */
 protected function fixShadowNodesInWorkspace(Workspace $workspace, $dryRun, NodeType $nodeType = null)
 {
     $workspaces = array_merge([$workspace], $workspace->getBaseWorkspaces());
     $fixedShadowNodes = 0;
     foreach ($workspaces as $workspace) {
         /** @var Workspace $workspace */
         if ($workspace->getBaseWorkspace() === null) {
             continue;
         }
         /** @var QueryBuilder $queryBuilder */
         $queryBuilder = $this->entityManager->createQueryBuilder();
         $queryBuilder->select('n')->from(NodeData::class, 'n')->where('n.workspace = :workspace');
         $queryBuilder->setParameter('workspace', $workspace->getName());
         if ($nodeType !== null) {
             $queryBuilder->andWhere('n.nodeType = :nodeType');
             $queryBuilder->setParameter('nodeType', $nodeType->getName());
         }
         /** @var NodeData $nodeData */
         foreach ($queryBuilder->getQuery()->getResult() as $nodeData) {
             $nodeDataSeenFromParentWorkspace = $this->nodeDataRepository->findOneByIdentifier($nodeData->getIdentifier(), $workspace->getBaseWorkspace(), $nodeData->getDimensionValues());
             // This is the good case, either the node does not exist or was shadowed
             if ($nodeDataSeenFromParentWorkspace === null) {
                 continue;
             }
             // Also good, the node was not moved at all.
             if ($nodeDataSeenFromParentWorkspace->getPath() === $nodeData->getPath()) {
                 continue;
             }
             $nodeDataOnSamePath = $this->nodeDataRepository->findOneByPath($nodeData->getPath(), $workspace->getBaseWorkspace(), $nodeData->getDimensionValues(), null);
             // We cannot just put a shadow node in the path, something exists, but that should be fine.
             if ($nodeDataOnSamePath !== null) {
                 continue;
             }
             if (!$dryRun) {
                 $nodeData->createShadow($nodeDataSeenFromParentWorkspace->getPath());
             }
             $fixedShadowNodes++;
         }
     }
     return $fixedShadowNodes;
 }