Bug 1656078: Display description of introduction instead of title

In bug 1438894 the fields for the introduction
artefact were changed.
Now we need to use the description of the artefact
instead of the title to show the introduction text.

behatnotneeded

Change-Id: I00618b471bc3a1460824394c081773548e19f0b4

htdocs/lib/searchlib.php

@@ -930,14 +930,14 @@ function get_group_user_search_results($group, $query, $offset, $limit, $members
 
     if ($results['count']) {
         $userids = array_map(create_function('$a', 'return $a["id"];'), $results['data']);
-        $introductions = get_records_sql_assoc("SELECT \"owner\", title
+        $introductions = get_records_sql_assoc("SELECT \"owner\", description
             FROM {artefact}
             WHERE artefacttype = 'introduction'
             AND \"owner\" IN (" . implode(',', db_array_to_ph($userids)) . ')',
             $userids);
         foreach ($results['data'] as &$result) {
             $result['name'] = display_name($result);
-            $result['introduction'] = isset($introductions[$result['id']]) ? $introductions[$result['id']]->title : '';
+            $result['introduction'] = isset($introductions[$result['id']]) ? $introductions[$result['id']]->description : '';
             if (isset($result['jointime'])) {
                 $result['jointime'] = format_date($result['jointime'], 'strftimedate');
             }