public async Task <bool> DeleteTutorial(TutorialModel tutorialModel)
        {
            using (var tutorialsContext = new TutorialsContext())
            {
                var tracking = tutorialsContext.Remove(tutorialModel);

                await tutorialsContext.SaveChangesAsync();

                var isDeleted = tracking.State == EntityState.Deleted;
                return(isDeleted);
            }
        }