public Guid?GetLastWorkloadEmployeeId(Discipline discipline, Group group, StudyYear studyYear) { using (Db.BeginReadOnlyWork()) { if (_workloadRepository.Count() == 0) { return(null); } var workload = _workloadRepository.Get( w => w.LocalWorkload.DisciplineYear.DisciplineId == discipline.Id //&& w.LocalWorkload.Group.SpecialityId == group.SpecialityId && w.LocalWorkload.StudyYear.Year == studyYear.Year - 1); return(workload?.EmployeeId); } }