public void CreateComment(GroupComment comment, string userId)
 {
     groupCommentRepository.Add(comment);
     SaveComment();
     var groupCommentUser = new GroupCommentUser { UserId = userId, GroupCommentId = comment.GroupCommentId };
     groupCommentUserRepository.Add(groupCommentUser);
     SaveComment();
 }
 public GroupComment GetLastComment(string userid)
 {
     //var comments = groupCommentRepository.GetMany(c => c.UserId == userid).Last();
     var comments = new GroupComment();
     return comments;
 }