public void UpdateCertificationsOfEmployee(CertificationsOfEmployee certificationsOfEmployee)
        {
            CertificationsOfEmployee c = context.CertificationsOfEmployees.Find(certificationsOfEmployee.Id);

            if (c != null)
            {
                context.Entry(c).State = EntityState.Modified;
                context.SaveChanges();
            }
        }
        public long InsertCertificationsOfEmployee(CertificationsOfEmployee certificationsOfEmployee)
        {
            context.CertificationsOfEmployees.Add(certificationsOfEmployee);
            context.SaveChanges();

            return certificationsOfEmployee.Id;
        }