private static function combineTwoNodes($uinKeep, $uinAttach)
 {
     //        echo "COMBINE TWO NODES KEEP = $uinKeep, ATTACH = $uinAttach<br/>";
     //DELETE NODE
     \Classes\Factory\Model\Model::deleteInstance($uinAttach);
     //CHANGE HASH TABLE
     foreach (self::$hashTables as $table) {
         $table->replaceUin($uinAttach, $uinKeep);
     }
     //        \Classes\Factory\Model\Model::servicePrint();
 }