BLL.GroupMembership.DeleteAllMembershipsForGroup C# (CSharp) Метод

        public static bool DeleteAllMembershipsForGroup(int groupId)
        {
            using (var uow = new DAL.UnitOfWork())
            {
                uow.GroupMembershipRepository.DeleteRange(x => x.GroupId == groupId);
                return uow.Save();
            }
        }