public async Task <ActionResult> Delete(Guid?id = null)
        {
            if (id.IsNull())
            {
                return(RedirectToAction("Index", "Home"));
            }

            var user = await _userManager.FindByNameAsync(User.Identity.Name);

            var result = await _service.DeleteAsync(id.Value, user.Id, true);

            return(RedirectToAction("Index", "Home"));
        }