BusinessLogic.Logic.Users.GamingGroupContextSwitcher.SwitchGamingGroupContext C# (CSharp) Метод

        public void SwitchGamingGroupContext(int gamingGroupId, ApplicationUser currentUser)
        {
            if (gamingGroupId == currentUser.CurrentGamingGroupId)
            {
                return;
            }

            bool hasAccess  = dataContext.GetQueryable<UserGamingGroup>()
                                         .Any(userGamingGroup => userGamingGroup.ApplicationUserId == currentUser.Id
                                                                 && userGamingGroup.GamingGroupId == gamingGroupId);

            if (!hasAccess)
            {
                throw new UnauthorizedAccessException(string.Format(EXCEPTION_MESSAGE_NO_ACCESS, currentUser.Id, gamingGroupId));
            }

            var user = dataContext.FindById<ApplicationUser>(currentUser.Id);
            user.CurrentGamingGroupId = gamingGroupId;
            dataContext.Save(user, currentUser);
        }
    }