public IActionResult CheckIn(int id) { var checkOutModel = _ICheckOut.GetByLibraryAssetId(id); if (checkOutModel == null) { return(RedirectToAction("Index")); } _ILibraryAsset.updateStatus(id, 2); _ICheckOut.ConfirmReturnedBook(checkOutModel.id); return(RedirectToAction("Details", new { id = id })); }