public ActionResult Create(QueryPhrase queryPhrase)
        {
            try
            {
                db.QueryPhrases.Add(queryPhrase);
                db.SaveChanges();

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
 private List<string> getRelevantDocuments(QueryPhrase queryPhrase)
 {
     List<string> relevantDocuments = new List<string>();
     string relevantDocument = "";
     int charCount = 1;
     foreach(var i in queryPhrase.RelevantDocuments)
     {
         if (i==',')
         {
             relevantDocuments.Add(relevantDocument);
             relevantDocument = "";
         }
         else if (charCount == queryPhrase.RelevantDocuments.Length)
         {
             relevantDocument += i;
             relevantDocuments.Add(relevantDocument);
         }
         else if(i!=' ')
         {
             relevantDocument += i;
         }
         charCount++;
     }
     return relevantDocuments;
 }