Sorry, probable "stupid question" alert! Is the code below the correct approach if I want to add topics via code?

            var unitofWorkManager = new UnitOfWorkManager(ContextPerRequest.Db);
            Topic topic = null;
            using (var unitOfWork = unitofWorkManager.NewUnitOfWork())
            {
                try
                {
                    var newTopic = new Topic
                                   {
                                       Category = forumCategory, 
                                       Name = "Title", 
                                       MemberId = intMemberId
                                   };
                    topic = Dialogue.Logic.Services.ServiceFactory.TopicService.Add(newTopic);

                    // Commit the transaction
                    unitOfWork.Commit();
                }
                catch (Exception ex)
                {
                    // Roll back database changes 
                    unitOfWork.Rollback();
                    // Log the error
                }
            }

I have read this https://github.com/YodasMyDad/Dialogue#servicefactory--unitofwork which is where the code sample comes from, but I just wanted to check I needed the "unitofwork" stuff.