public IEnumerable <PresidentModel> GetAllPresidents() { List <President> presidents = new List <President>(); List <PresidentModel> presidentsModel = new List <PresidentModel>(); presidents = _contentItemRepository.GetAllPresidents().ToList(); foreach (var item in presidents) { PresidentModel president = new PresidentModel { id = item.id, Name = item.name, Birthday = item.birthday, Birthplace = item.birthplace, Deathday = item.deathday, Deathplace = item.deathplace }; presidentsModel.Add(president); } return(presidentsModel); }