public List<WallDto> GetCommentsForUser(int userID)
 {
     var userWalls = WallRepository.GetCommentsForUser(userID);
     var userWallDtos = new List<WallDto>();
     
     foreach (var comments in userWalls)
     {
         var dto = new WallDto(comments);
         userWallDtos.Add(dto);
     }
     return userWallDtos;
 }
 public void Post(WallDto model)
 {
     try
     {
     var sender = GetLoggedInUser();
     DateTime CommentDate = DateTime.Now;
     if (ModelState.IsValid)
     {
       WallRepository.AddWallComment(model.WallOwnerID, sender.UserID, model.Comment, CommentDate);
     }
     }
     catch (Exception) { }
 }