public ActionResult AddToIndex(Articles article)
 {
     LuceneSearch.AddUpdateLuceneIndex(article);
     TempData["Result"] = "Record was added to search index successfully!";
     return RedirectToAction("Index");
 }
        private static void _addToLuceneIndex(Articles articles, IndexWriter writer)
        {
            //uklanjanje starog index unosa
            var searchQuery = new TermQuery(new Term("ArticleID", articles.ArticleID.ToString()));
            writer.DeleteDocuments(searchQuery);

            //dodavanje novog index unosa
            var doc = new Document();

            //mapiranje db atributa
            doc.Add(new Field("ArticleID", articles.ArticleID.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED)); //NOT_ANALYZED se koristi za jedinstvene vrijednosti.
            doc.Add(new Field("Title", articles.Title, Field.Store.YES, Field.Index.ANALYZED));
            doc.Add(new Field("Content", articles.Content, Field.Store.YES, Field.Index.ANALYZED)); //ANALYZED se koristi za text ili string.

            //dodavanje u index
            writer.AddDocument(doc);
        }
 //Dodavanje samo jednog unosa u search index
 public static void AddUpdateLuceneIndex(Articles article)
 {
     AddUpdateLuceneIndex(new List<Articles> { article });
 }
        public ActionResult Edit(Articles article)
        {
            if (ModelState.IsValid)
            {

                article.DateModified = DateTime.Now;
                db.Entry(article).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            ViewBag.ArticleCategoryID = new SelectList(db.ArticleCategories, "ArticleCategoryID", "Name", article.ArticleCategoryID);
            return View(article);
        }