Fix for invalid sql (for postgres) in cron cleanup of duplicate enrolments. Possibly soon to be overridden by a unique index

2004-11-23 01:04:45 +00:00
parent fab2f0b23a
commit 4eebe5eb59
1 changed files with 2 additions and 2 deletions
@@ -103,9 +103,9 @@
        /// Delete duplicate enrolments (don't know what causes these yet - expired sessions?)
    
        if ($users = get_records_select("user_students", "userid > 0 GROUP BY course, userid ".
-                                        "HAVING count(*) > 1", "", "*,count(*)")) {
+                                        "HAVING count(*) > 1", "", "max(id) as id, userid, course ,count(*)")) {
            foreach ($users as $user) {
-               delete_records_select("user_students", "userid = '$user->userid' ".
+                delete_records_select("user_students", "userid = '$user->userid' ".
                                     "AND course = '$user->course' AND id <> '$user->id'");
            }
        }