Fixing time to avoid negative values see BT#3627

13 years ago · c727e69e69
parent 3cab2a707e
commit c727e69e69
1 changed files with 3 additions and 3 deletions
--- a/main/inc/lib/tracking.lib.php
+++ b/main/inc/lib/tracking.lib.php
@ -106,7 +106,7 @@ class Tracking {

 		$sql = "SELECT SUM(UNIX_TIMESTAMP(logout_course_date) - UNIX_TIMESTAMP(login_course_date)) as nb_seconds
                FROM $tbl_track_course
-                WHERE course_code='$course_code' AND session_id = '$session_id' $condition_user";
+                WHERE UNIX_TIMESTAMP(logout_course_date) > UNIX_TIMESTAMP(login_course_date) AND course_code='$course_code' AND session_id = '$session_id' $condition_user";
        
        $rs = Database::query($sql);
 		$row = Database::fetch_array($rs);