public static function getLoanActive($id)
 {
     $obj = Loan::getByStatus(self::STATUS_ACTIVE)->where('id', $id)->first();
     if ($obj == null) {
         return response()->json(array('Not found'));
     }
     $obj->user = $obj->user()->first();
     $obj->loanItems = $obj->loanItems()->get();
     unset($obj->user_id);
     return $obj;
 }