From 4a53b7311e593093bdfe8f55b415ad85cee64afd Mon Sep 17 00:00:00 2001
From: Bertrand Le Roy <bertrandleroy@gmail.com>
Date: Tue, 27 Dec 2011 00:27:39 -0800
Subject: [PATCH] Empty queries don't crash

---
 App_Code/SearchHelpers.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/App_Code/SearchHelpers.cs b/App_Code/SearchHelpers.cs
index bef71c8a..aa9932dc 100644
--- a/App_Code/SearchHelpers.cs
+++ b/App_Code/SearchHelpers.cs
@@ -36,6 +36,12 @@ public static void BuildIndex(HttpContext ctx) {
         }
 
         public static SearchResults Query(HttpContext ctx, string query, int page = 1) {
+            if (string.IsNullOrWhiteSpace(query)) {
+                return new SearchResults {
+                    Documents = new SearchResult[0],
+                    TotalCount = 0
+                };
+            }
             var indexPath = ctx.Server.MapPath("~/App_Data/Index");
             var indexSearcher = new DirectoryIndexSearcher(new DirectoryInfo(indexPath));
             using (var searchService = new SearchService(indexSearcher)) {