/**
  * Fix container item group references after a container has been cloned
  *
  * @param
  * @return
  */
 static function fixContainerItemGroupRefsAfterCloning($a_source_container, $a_copy_id)
 {
     global $ilLog;
     $ilLog->write(__METHOD__ . ': Fix item group references in ' . $a_source_container->getType());
     include_once 'Services/CopyWizard/classes/class.ilCopyWizardOptions.php';
     $cwo = ilCopyWizardOptions::_getInstance($a_copy_id);
     $mappings = $cwo->getMappings();
     $new_container_ref_id = $mappings[$a_source_container->getRefId()];
     $ilLog->write(__METHOD__ . ': 2-' . $new_container_ref_id . '-');
     $new_container_obj_id = ilObject::_lookupObjId($new_container_ref_id);
     include_once "./Services/COPage/classes/class.ilPageObject.php";
     include_once "./Services/Container/classes/class.ilContainerPage.php";
     $ilLog->write(__METHOD__ . ': 3' . $new_container_obj_id . '-');
     if (ilPageObject::_exists("cont", $new_container_obj_id)) {
         $ilLog->write(__METHOD__ . ': 4');
         $new_page = new ilContainerPage($new_container_obj_id);
         $new_page->buildDom();
         include_once "./Services/COPage/classes/class.ilPCResources.php";
         ilPCResources::modifyItemGroupRefIdsByMapping($new_page, $mappings);
         $new_page->update();
     }
     $ilLog->write(__METHOD__ . ': 5');
 }
 /**
  * Clone container settings
  *
  * @access public
  * @param int target ref_id
  * @param int copy id
  * @return object new object 
  */
 public function cloneObject($a_target_id, $a_copy_id = 0)
 {
     $new_obj = parent::cloneObject($a_target_id, $a_copy_id);
     include_once './Services/Container/classes/class.ilContainerSortingSettings.php';
     $sorting = new ilContainerSortingSettings($new_obj->getId());
     $sorting->setSortMode($this->getOrderType());
     $sorting->update();
     // copy content page
     include_once "./Services/Container/classes/class.ilContainerPage.php";
     if (ilContainerPage::_exists("cont", $this->getId())) {
         $orig_page = new ilContainerPage($this->getId());
         $new_page_object = new ilContainerPage();
         $new_page_object->setParentId($new_obj->getId());
         $new_page_object->setId($new_obj->getId());
         $new_page_object->createFromXML();
         $new_page_object->setXMLContent($orig_page->getXMLContent());
         $new_page_object->buildDom(true);
         $new_page_object->update();
     }
     return $new_obj;
 }