private function _checkReturnData($data, $errreturn) { if ($data === false) { self::$errCode = DeptModel::$errCode; self::$errMsg = DeptModel::$errMsg; return $errreturn; } elseif (empty($data)) { self::$errCode = 5806; self::$errMsg = 'There is no data!'; if (self::$debug === true) { self::$errMsg .= 'The SQL is ' . DeptModel::$errMsg; } return $errreturn; } else { self::$errCode = 1; self::$errMsg = 'success'; return $data; } }