Raven search

Index.cs

    public class Students_ByCourse : AbstractIndexCreationTask<Student>
    {

        public Students_ByCourse()
        {
            Map = students => from student in students
                              select new {student.Course};

            Indexes.Add(s => s.Course, FieldIndexing.Analyzed);
        }

    }

query.cs

        public ActionResult Search(string query)
        {
            using (var documentSession = MvcApplication.DocumentStore.OpenSession())
            {
                RavenQueryStatistics stats;

                var ravenQuery = documentSession.Query<Student, Students_ByCourse>()
                    .Statistics(out stats)
                    .Search(x => x.Course, query);

                var results = ravenQuery.ToList();

                if (stats.TotalResults == 0)
                {
                    var suggestions = ravenQuery.Suggest();
                    return Json(suggestions, JsonRequestBehavior.AllowGet);
                }

                return Json(results, JsonRequestBehavior.AllowGet);
            }
        }