function move($newParentNodeID, $nodeID = 0)
 {
     if ($nodeID == 0) {
         $node = $this;
         $nodeID = $node->attribute('node_id');
     } else {
         $node = eZContentObjectTreeNodeNoLanguage::fetch($nodeID);
     }
     $oldPath = $node->attribute('path_string');
     $oldParentNodeID = $node->attribute('parent_node_id');
     $newParentNodeID = (int) $newParentNodeID;
     if ($oldParentNodeID != $newParentNodeID) {
         $node->updateAndStoreModified();
         // Who moves which content should be logged.
         $object = $node->object();
         eZAudit::writeAudit('content-move', array('Node ID' => $node->attribute('node_id'), 'Old parent node ID' => $oldParentNodeID, 'New parent node ID' => $newParentNodeID, 'Object ID' => $object->attribute('id'), 'Content Name' => $object->attribute('name'), 'Comment' => 'Moved the node to the given node: eZContentObjectTreeNodeNoLanguage::move()'));
         $newParentNode = eZContentObjectTreeNodeNoLanguage::fetch($newParentNodeID);
         $newParentPath = $newParentNode->attribute('path_string');
         $newParentDepth = $newParentNode->attribute('depth');
         $newPath = $newParentPath . $nodeID;
         $oldDepth = $node->attribute('depth');
         $oldPathLength = strlen($oldPath);
         $moveQuery = "UPDATE\n                                 ezcontentobject_tree\n                          SET\n                                 parent_node_id = {$newParentNodeID}\n                          WHERE\n                                 node_id = {$nodeID}";
         $db = eZDB::instance();
         $subStringString = $db->subString('path_string', $oldPathLength);
         $newPathString = $db->concatString(array("'{$newPath}'", $subStringString));
         $moveQuery1 = "UPDATE\n                                 ezcontentobject_tree\n                           SET\n                                 path_identification_string = " . $db->concatString(array("'" . $db->escapeString($newParentNode->PathIdentificationString) . "'", $db->subString("path_identification_string", mb_strlen($node->PathIdentificationString) + 1))) . ",\n                                 path_string = {$newPathString},\n                                 depth = depth + {$newParentDepth} - {$oldDepth} + 1\n                           WHERE\n                                 path_string LIKE '{$oldPath}%'";
         $db->begin();
         $db->query($moveQuery);
         $db->query($moveQuery1);
         /// role system clean up
         // Clean up policies and limitations
         $expireRoleCache = false;
         $limitationsToFix = eZPolicyLimitation::findByType('SubTree', $node->attribute('path_string'), false);
         if (count($limitationsToFix) > 0) {
             $limitationIDString = $db->generateSQLINStatement($limitationsToFix, 'limitation_id');
             $subStringString = $db->subString('value', $oldPathLength);
             $newValue = $db->concatString(array("'{$newPath}'", $subStringString));
             $query = "UPDATE\n                                ezpolicy_limitation_value\n                          SET\n                                value = {$newValue}\n                          WHERE\n                                value LIKE '{$oldPath}%' AND {$limitationIDString}";
             $db->query($query);
             $expireRoleCache = true;
         }
         // clean up limitations on role assignment level
         $countRows = $db->arrayQuery("SELECT COUNT(*) AS row_count FROM ezuser_role WHERE limit_identifier='Subtree' AND limit_value LIKE '{$oldPath}%'");
         $assignmentsToFixCount = $countRows[0]['row_count'];
         if ($assignmentsToFixCount > 0) {
             $subStringString = $db->subString('limit_value', $oldPathLength);
             $newValue = $db->concatString(array("'{$newPath}'", $subStringString));
             $db->query("UPDATE\n                                ezuser_role\n                             SET\n                                limit_value = {$newValue}\n                             WHERE\n                                limit_identifier='Subtree' AND limit_value LIKE '{$oldPath}%'");
             $expireRoleCache = true;
         }
         if ($expireRoleCache) {
             eZRole::expireCache();
         }
         // Update "is_invisible" node attribute.
         $newNode = eZContentObjectTreeNodeNoLanguage::fetch($nodeID);
         eZContentObjectTreeNodeNoLanguage::updateNodeVisibility($newNode, $newParentNode);
         $db->commit();
     }
 }