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