private DataResponse <TEntity> HandleSaveRequest <TEntity>(DataRequest <TEntity> request) where TEntity : class, IDataEntity { // If we are doing an in-place update, we need the entity to not exist, the ID to // be provided, and the InPlaceUpdate delegate to be set if (request.Entity == null && !string.IsNullOrEmpty(request.Id) && request.InPlaceUpdate != null) { request.Entity = _storage.Get <TEntity>(request.Id); if (request.Entity == null) { return(DataResponse <TEntity> .NotFound()); } request.InPlaceUpdate(request.Entity); } // If we don't have an entity at this point, it's an error if (request.Entity == null) { return(DataResponse <TEntity> .BadRequest()); } var version = _storage.Save(request.Entity, request.Force); if (version == VersionMismatch) { return(DataResponse <TEntity> .VersionMismatch()); } request.Entity.StoreVersion = version; return(DataResponse <TEntity> .Saved(request.Entity)); }