public List <Drug> GetDrugs(int patientId) { var drugs = patientMapper.GetDrugs(patientId); if (drugs == null) { return(null); } var drugsList = new List <Drug>(); foreach (var drug in drugs) { drugsList.Add(new Drug() { Id = drug.Id, PatientId = drug.PatientId, Name = drug.Name }); } return(drugsList); }