added random search

git-svn-id: http://yolanda.mister-muffin.de/svn@327 7eef14d0-6ed0-489d-bf55-20463b2d70db

trunk/config/backend.xml

@@ -18,7 +18,7 @@
     <string id="search_frontpage_size">3</string>
     <string id="search_results_default">10</string>
     <string id="search_results_max">500</string>
-    <string id="search_order_default">relevance</string><!-- a v.column in the videos table or relevance -->
+    <string id="search_order_default">relevance</string><!-- a v.column in the videos table or relevance or random -->
     <string id="search_sort_default">desc</string><!-- asc or desc -->
     
     <!-- general page settings -->

trunk/functions.pl

@@ -252,6 +252,10 @@ sub get_sqlquery
             {
                 $dbquery .= " order by relevance";
             }
+            elsif($order eq 'random')
+            {
+                $dbquery .= " order by rand()";
+            }
             else
             {
                 $dbquery .= " order by $config->{'search_order_default'}";