public IList <CommentDTO> CommentSearch(string searchTerms, string currentUser)
        {
            var words = (from s in searchTerms.Split(' ')
                         select _stemmer.Stem(s)).ToList();

            return((from c in _commentRepo.CommentSearch(words, currentUser)

                    select new CommentDTO()
            {
                Location = c.Location,
                Text = c.Text,
                ResourceId = c.ResourceId,
                Resource = c.Resource.Title
            }).ToList());
        }