course)) {
error("Forum doesn't belong to a course!");
}
if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
if (groupmode($course, $cm) and !isteacheredit($course->id)) { // Make sure user is allowed
if (! mygroupid($course->id)) {
error("Sorry, but you must be a group member to subscribe.");
}
}
} else {
$cm->id = 0;
}
if ($user) {
if (!isteacher($course->id)) {
error("Only teachers can subscribe/unsubscribe other people!");
}
if (! $user = get_record("user", "id", $user)) {
error("User ID was incorrect");
}
} else {
$user = $USER;
}
require_course_login($course, false, $cm);
if (isguest()) { // Guests can't subscribe
$wwwroot = $CFG->wwwroot.'/login/index.php';
if (!empty($CFG->loginhttps)) {
$wwwroot = str_replace('http','https', $wwwroot);
}
$strforums = get_string('modulenameplural', 'forum');
if ($course->category) {
print_header($course->shortname, $course->fullname,
"id\">$course->shortname ->
id\">$strforums ->
id\">".format_string($forum->name,true)."", '', '', true, "", navmenu($course, $cm));
} else {
print_header($course->shortname, $course->fullname,
"id\">$strforums ->
id\">".format_string($forum->name,true)."", '', '', true, "", navmenu($course, $cm));
}
notice_yesno(get_string('noguestsubscribe', 'forum').'
'.get_string('liketologin'),
$wwwroot, $_SERVER['HTTP_REFERER']);
print_footer($course);
exit;
}
if ($forum->type == "teacher") {
if (!isteacher($course->id)) {
error("You must be a $course->teacher to subscribe to this forum");
}
}
$returnto = forum_go_back_to("index.php?id=$course->id");
if ($force and isteacher($course->id)) {
if (forum_is_forcesubscribed($forum->id)) {
forum_forcesubscribe($forum->id, 0);
redirect($returnto, get_string("everyonecanchoose", "forum"), 1);
} else {
forum_forcesubscribe($forum->id, 1);
redirect($returnto, get_string("everyoneissubscribed", "forum"), 1);
}
}
if (forum_is_forcesubscribed($forum->id)) {
redirect($returnto, get_string("everyoneissubscribed", "forum"), 1);
}
$info->name = fullname($user);
$info->forum = format_string($forum->name);
if ( forum_is_subscribed($user->id, $forum->id) ) {
if (forum_unsubscribe($user->id, $forum->id) ) {
add_to_log($course->id, "forum", "unsubscribe", "view.php?f=$forum->id", $forum->id, $cm->id);
redirect($returnto, get_string("nownotsubscribed", "forum", $info), 1);
} else {
error("Could not unsubscribe you from that forum", $_SERVER["HTTP_REFERER"]);
}
} else { // subscribe
if (forum_subscribe($user->id, $forum->id) ) {
add_to_log($course->id, "forum", "subscribe", "view.php?f=$forum->id", $forum->id, $cm->id);
redirect($returnto, get_string("nowsubscribed", "forum", $info), 1);
} else {
error("Could not subscribe you to that forum", $_SERVER["HTTP_REFERER"]);
}
}
?>