<li>Fixed Added an option to cancel prerequisites in a course (Learning path). Fixed by aboivin in <ahref="http://www.chamilo.org/node/146"target="_blank">http://www.chamilo.org/node/146</a></li>
<li>Empty extra user fields are now deleted from the database</li>
<li>Quiz tool: Answer list fixed when using "matching" question type (BT#801). Reported by Noa Orizales</li>
<li>Quiz tool + LP : Fixed bug when adding a exercise twice in the same LP with multiple attempts or not.</li>
<li>Quiz tool + LP + Multiple attempts : Pre requisites will work the first time a student pass the LP.
If an student finished all steps correctly he will view all steps, prerequisites will not work here.</li>
<li>Learning Path (Courses): PHP sessions of a LP are destroyed when visiting the main course page.</li>
$sql = "SELECT *, DATE_FORMAT(date_start,'%d-%m-%Y') AS display_date FROM ".$db_table." WHERE (lang='$user_selected_language' OR lang IS NULL) AND ((NOW() BETWEEN date_start AND date_end) OR date_end='0000-00-00') ";
switch ($visible)
{
switch ($visible) {
case VISIBLE_GUEST :
$sql .= " AND visible_guest = 1 ";
break;
@ -36,40 +35,32 @@ class SystemAnnouncementManager