/**
  * Clones all data of a given room sharing pool to a new one.
  *
  * @param ilObjRoomSharing $a_pool
  * @param ilObjRoomSharing $a_new_pool
  *
  * @return bool true if cloning was successful
  */
 public static function clonePool(ilObjRoomSharing $a_pool, ilObjRoomSharing $a_new_pool)
 {
     // Pool main properties
     $rooms_agreement_file_id = $a_pool->getRoomsAgreementFileId();
     $cloned_rooms_agreement_file_id = "0";
     if (ilRoomSharingNumericUtils::isPositiveNumber($rooms_agreement_file_id)) {
         $rooms_agreement_file = new ilObjMediaObject($rooms_agreement_file_id);
         $cloned_agreement_file = $rooms_agreement_file->duplicate();
         $cloned_rooms_agreement_file_id = $cloned_agreement_file->getId();
     }
     $a_new_pool->setOnline($a_pool->isOnline());
     $a_new_pool->setMaxBookTime($a_pool->getMaxBookTime());
     $a_new_pool->setRoomsAgreementFileId($cloned_rooms_agreement_file_id);
     $a_new_pool->update();
     // Other database related information
     $db = new ilRoomSharingDatabase($a_pool->getPoolId());
     $clone_db = new ilRoomSharingDatabase($a_new_pool->getPoolId());
     // Booking attributes
     $all_booking_attributes = $db->getAllBookingAttributes();
     foreach ($all_booking_attributes as $booking_attribute) {
         $clone_db->insertBookingAttribute($booking_attribute['name']);
     }
     // Room attributes
     $all_room_attributes = $db->getAllRoomAttributes();
     $room_attrs_id_mapping = array();
     foreach ($all_room_attributes as $room_attribute) {
         $id_of_cloned_attribute = $clone_db->insertRoomAttribute($room_attribute['name']);
         $room_attrs_id_mapping[$room_attribute['id']] = $id_of_cloned_attribute;
     }
     // Floorplans
     $all_floorplan_ids = $db->getAllFloorplanIds();
     // Key is original id and value the new one
     $floorplans_ids_mapping = array();
     foreach ($all_floorplan_ids as $floorplan_id) {
         if (ilRoomSharingNumericUtils::isPositiveNumber($floorplan_id)) {
             $floorplan = new ilObjMediaObject($floorplan_id);
             $cloned_floorplan = $floorplan->duplicate();
             $clone_db->insertFloorplan($cloned_floorplan->getId());
             $floorplans_ids_mapping[$floorplan_id] = $cloned_floorplan->getId();
         }
     }
     // Rooms
     $all_rooms = $db->getAllRooms();
     foreach ($all_rooms as $room) {
         // Critical: should be the floorplan_id the building_id or the file_id?
         // building_id is actually used..
         $mapped_floorplan_id = $floorplans_ids_mapping[$room['file_id']];
         $flooplan_id_to_set = "0";
         if (ilRoomSharingNumericUtils::isPositiveNumber($mapped_floorplan_id)) {
             $flooplan_id_to_set = $mapped_floorplan_id;
         }
         $cloned_room_id = $clone_db->insertRoom($room['name'], $room['type'], $room['min_alloc'], $room['max_alloc'], $flooplan_id_to_set, $room['building_id']);
         // Room attribute assignments
         $room_attributes = $db->getAttributesForRoom($room['id']);
         foreach ($room_attributes as $room_attribute) {
             $mapped_attr_id = $room_attrs_id_mapping[$room_attribute['id']];
             if (ilRoomSharingNumericUtils::isPositiveNumber($mapped_attr_id)) {
                 $clone_db->insertAttributeForRoom($cloned_room_id, $mapped_attr_id, $room_attribute['count']);
             }
         }
     }
     // Privileges
     $classes = $db->getClasses();
     // Key is original id and value the new one
     $mapped_classes_ids = array();
     foreach ($classes as $class) {
         $cloned_class_id = $clone_db->insertClass($class['name'], $class['description'], $class['role_id'], $class['priority'], $class['id']);
         $mapped_classes_ids[$class['id']] = $cloned_class_id;
     }
     foreach ($mapped_classes_ids as $class_id => $cloned_class_id) {
         $users_ids_for_class = $db->getUsersForClass($class_id);
         foreach ($users_ids_for_class as $user_id) {
             $clone_db->assignUserToClass($cloned_class_id, $user_id);
         }
     }
 }