public IList <ShoppingListDto> GetListsByUserId(int userId) { var linkedUserLists = _listRepository.GetLinkByUserId(userId); List <ShoppingListDto> listOfLists = new List <ShoppingListDto>(); foreach (LinkUserToList link in linkedUserLists) { var list = Get(link.ShoppingListId, userId); listOfLists.Add(list); } return(listOfLists); }