public bool add(int employeeId, string performance)
        {
            List <WorkPerformance> works = getAll();

            foreach (WorkPerformance work in works)
            {
                if (work.EmployeeId == employeeId && work.Status == "Active")
                {
                    return(false);
                }
            }

            WorkPerformance w = WorkPerformanceFactory.create(employeeId, performance);

            WorkPerformanceRepository.add(w);
            return(true);
        }
 public void remove(int id)
 {
     WorkPerformanceRepository.remove(id);
 }
 public void update(int id, string performance)
 {
     WorkPerformanceRepository.update(id, performance);
 }
 public List <WorkPerformance> getAll()
 {
     return(WorkPerformanceRepository.getAll());
 }