/**
  * Clears the view cache for a subtree
  *
  * @param eZContentObjectTreeNodeNoLanguage $node
  * @param bool $clearForRootNode
  * @return bool
  */
 static function clearViewCacheForSubtree(eZContentObjectTreeNodeNoLanguage $node, $clearForRootNode = true)
 {
     // Max nodes to fetch at a time
     static $limit = 200;
     if ($clearForRootNode) {
         $objectID = $node->attribute('contentobject_id');
         eZContentCacheManager::clearContentCacheIfNeeded($objectID);
     }
     $offset = 0;
     $params = array('AsObject' => false, 'Depth' => false, 'Limitation' => array());
     // Empty array means no permission checking
     $subtreeCount = $node->subTreeCount($params);
     while ($offset < $subtreeCount) {
         $params['Offset'] = $offset;
         $params['Limit'] = $limit;
         $subtreeChunk = $node->subTree($params);
         $nNodesInChunk = count($subtreeChunk);
         $offset += $nNodesInChunk;
         if ($nNodesInChunk == 0) {
             break;
         }
         $objectIDList = array();
         foreach ($subtreeChunk as $curNode) {
             $objectIDList[] = $curNode['id'];
         }
         unset($subtreeChunk);
         eZContentCacheManager::clearContentCacheIfNeeded(array_unique($objectIDList));
     }
     return true;
 }