static function addChildTo($contentobjectID, $nodeID, $asObject = false, $contentObjectVersion = false)
 {
     $node = eZContentObjectTreeNodeNoLanguage::fetch($nodeID);
     $contentObject = eZContentObject::fetch($contentobjectID);
     if (!$contentObject) {
         return false;
     }
     if (!$contentObjectVersion) {
         $contentObjectVersion = $contentObject->attribute('current_version');
     }
     $db = eZDB::instance();
     $parentMainNodeID = $node->attribute('node_id');
     //$parent->attribute( 'main_node_id' );
     $parentPath = $node->attribute('path_string');
     $parentDepth = $node->attribute('depth');
     $isInvinsible = $node->attribute('is_invisible');
     $nodeDepth = $parentDepth + 1;
     $insertedNode = eZContentObjectTreeNodeNoLanguage::create($parentMainNodeID, $contentobjectID);
     // set default sorting from content class
     $contentClass = $contentObject->attribute('content_class');
     $insertedNode->setAttribute('sort_field', $contentClass->attribute('sort_field'));
     $insertedNode->setAttribute('sort_order', $contentClass->attribute('sort_order'));
     $insertedNode->setAttribute('depth', $nodeDepth);
     $insertedNode->setAttribute('path_string', '/TEMPPATH');
     $insertedNode->setAttribute('contentobject_version', $contentObjectVersion);
     // If the parent node is invisible, the new created node should be invisible as well.
     $insertedNode->setAttribute('is_invisible', $isInvinsible);
     $db->begin();
     $insertedNode->store();
     $insertedID = $insertedNode->attribute('node_id');
     $newNodePath = $parentPath . $insertedID . '/';
     $insertedNode->setAttribute('path_string', $newNodePath);
     $insertedNode->store();
     $db->commit();
     if ($asObject) {
         return $insertedNode;
     } else {
         return $insertedID;
     }
 }