public void Delete(AlumniUsersGroupsRelation alumniUsersGroupsRelation)
 {
     using (var uow = this.GetUnitOfWork())
     {
         var alumniUsersGroupsRelationRepository = uow.GetRepository <AlumniUsersGroupsRelation>();
         alumniUsersGroupsRelationRepository.Delete(alumniUsersGroupsRelation);
         uow.Commit();
     }
 }
        public void Create(long userRefId, long groupRefId)
        {
            using (var uow = this.GetUnitOfWork())
            {
                var alumniUsersGroupsRelation = new AlumniUsersGroupsRelation()
                {
                    UserRef  = userRefId,
                    GroupRef = groupRefId
                };

                var alumniUsersGroupsRelationRepository = uow.GetRepository <AlumniUsersGroupsRelation>();
                alumniUsersGroupsRelationRepository.Put(alumniUsersGroupsRelation);
                uow.Commit();
            }
        }