You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
278 lines
11 KiB
278 lines
11 KiB
<?php
|
|
|
|
// This file is part of Moodle - http://moodle.org/
|
|
//
|
|
// Moodle is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Moodle is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
/**
|
|
* Subscribe to or unsubscribe from a forum or manage forum subscription mode
|
|
*
|
|
* This script can be used by either individual users to subscribe to or
|
|
* unsubscribe from a forum (no 'mode' param provided), or by forum managers
|
|
* to control the subscription mode (by 'mode' param).
|
|
* This script can be called from a link in email so the sesskey is not
|
|
* required parameter. However, if sesskey is missing, the user has to go
|
|
* through a confirmation page that redirects the user back with the
|
|
* sesskey.
|
|
*
|
|
* @package mod_forum
|
|
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
require(__DIR__.'/../../config.php');
|
|
require_once($CFG->dirroot.'/mod/forum/lib.php');
|
|
|
|
$id = required_param('id', PARAM_INT); // The forum to set subscription on.
|
|
$mode = optional_param('mode', null, PARAM_INT); // The forum's subscription mode.
|
|
$user = optional_param('user', 0, PARAM_INT); // The userid of the user to subscribe, defaults to $USER.
|
|
$discussionid = optional_param('d', null, PARAM_INT); // The discussionid to subscribe.
|
|
$sesskey = optional_param('sesskey', null, PARAM_RAW);
|
|
$returnurl = optional_param('returnurl', null, PARAM_RAW);
|
|
|
|
$url = new moodle_url('/mod/forum/subscribe.php', array('id'=>$id));
|
|
if (!is_null($mode)) {
|
|
$url->param('mode', $mode);
|
|
}
|
|
if ($user !== 0) {
|
|
$url->param('user', $user);
|
|
}
|
|
if (!is_null($sesskey)) {
|
|
$url->param('sesskey', $sesskey);
|
|
}
|
|
if (!is_null($discussionid)) {
|
|
$url->param('d', $discussionid);
|
|
if (!$discussion = $DB->get_record('forum_discussions', array('id' => $discussionid, 'forum' => $id))) {
|
|
print_error('invaliddiscussionid', 'forum');
|
|
}
|
|
}
|
|
$PAGE->set_url($url);
|
|
|
|
$forum = $DB->get_record('forum', array('id' => $id), '*', MUST_EXIST);
|
|
$course = $DB->get_record('course', array('id' => $forum->course), '*', MUST_EXIST);
|
|
$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id, false, MUST_EXIST);
|
|
$context = context_module::instance($cm->id);
|
|
|
|
if ($user) {
|
|
require_sesskey();
|
|
if (!has_capability('mod/forum:managesubscriptions', $context)) {
|
|
print_error('nopermissiontosubscribe', 'forum');
|
|
}
|
|
$user = $DB->get_record('user', array('id' => $user), '*', MUST_EXIST);
|
|
} else {
|
|
$user = $USER;
|
|
}
|
|
|
|
if (isset($cm->groupmode) && empty($course->groupmodeforce)) {
|
|
$groupmode = $cm->groupmode;
|
|
} else {
|
|
$groupmode = $course->groupmode;
|
|
}
|
|
|
|
$issubscribed = \mod_forum\subscriptions::is_subscribed($user->id, $forum, $discussionid, $cm);
|
|
|
|
// For a user to subscribe when a groupmode is set, they must have access to at least one group.
|
|
if ($groupmode && !$issubscribed && !has_capability('moodle/site:accessallgroups', $context)) {
|
|
if (!groups_get_all_groups($course->id, $USER->id)) {
|
|
print_error('cannotsubscribe', 'forum');
|
|
}
|
|
}
|
|
|
|
require_login($course, false, $cm);
|
|
|
|
if (is_null($mode) and !is_enrolled($context, $USER, '', true)) { // Guests and visitors can't subscribe - only enrolled
|
|
$PAGE->set_title($course->shortname);
|
|
$PAGE->set_heading($course->fullname);
|
|
if (isguestuser()) {
|
|
echo $OUTPUT->header();
|
|
echo $OUTPUT->confirm(get_string('subscribeenrolledonly', 'forum').'<br /><br />'.get_string('liketologin'),
|
|
get_login_url(), new moodle_url('/mod/forum/view.php', array('f'=>$id)));
|
|
echo $OUTPUT->footer();
|
|
exit;
|
|
} else {
|
|
// There should not be any links leading to this place, just redirect.
|
|
redirect(
|
|
new moodle_url('/mod/forum/view.php', array('f'=>$id)),
|
|
get_string('subscribeenrolledonly', 'forum'),
|
|
null,
|
|
\core\output\notification::NOTIFY_ERROR
|
|
);
|
|
}
|
|
}
|
|
|
|
$returnto = optional_param('backtoindex',0,PARAM_INT)
|
|
? "index.php?id=".$course->id
|
|
: "view.php?f=$id";
|
|
|
|
if ($returnurl) {
|
|
$returnto = $returnurl;
|
|
}
|
|
|
|
if (!is_null($mode) and has_capability('mod/forum:managesubscriptions', $context)) {
|
|
require_sesskey();
|
|
switch ($mode) {
|
|
case FORUM_CHOOSESUBSCRIBE : // 0
|
|
\mod_forum\subscriptions::set_subscription_mode($forum->id, FORUM_CHOOSESUBSCRIBE);
|
|
redirect(
|
|
$returnto,
|
|
get_string('everyonecannowchoose', 'forum'),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
break;
|
|
case FORUM_FORCESUBSCRIBE : // 1
|
|
\mod_forum\subscriptions::set_subscription_mode($forum->id, FORUM_FORCESUBSCRIBE);
|
|
redirect(
|
|
$returnto,
|
|
get_string('everyoneisnowsubscribed', 'forum'),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
break;
|
|
case FORUM_INITIALSUBSCRIBE : // 2
|
|
if ($forum->forcesubscribe <> FORUM_INITIALSUBSCRIBE) {
|
|
$users = \mod_forum\subscriptions::get_potential_subscribers($context, 0, 'u.id, u.email', '');
|
|
foreach ($users as $user) {
|
|
\mod_forum\subscriptions::subscribe_user($user->id, $forum, $context);
|
|
}
|
|
}
|
|
\mod_forum\subscriptions::set_subscription_mode($forum->id, FORUM_INITIALSUBSCRIBE);
|
|
redirect(
|
|
$returnto,
|
|
get_string('everyoneisnowsubscribed', 'forum'),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
break;
|
|
case FORUM_DISALLOWSUBSCRIBE : // 3
|
|
\mod_forum\subscriptions::set_subscription_mode($forum->id, FORUM_DISALLOWSUBSCRIBE);
|
|
redirect(
|
|
$returnto,
|
|
get_string('noonecansubscribenow', 'forum'),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
break;
|
|
default:
|
|
print_error(get_string('invalidforcesubscribe', 'forum'));
|
|
}
|
|
}
|
|
|
|
if (\mod_forum\subscriptions::is_forcesubscribed($forum)) {
|
|
redirect(
|
|
$returnto,
|
|
get_string('everyoneisnowsubscribed', 'forum'),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
}
|
|
|
|
$info = new stdClass();
|
|
$info->name = fullname($user);
|
|
$info->forum = format_string($forum->name);
|
|
|
|
if ($issubscribed) {
|
|
if (is_null($sesskey)) {
|
|
// We came here via link in email.
|
|
$PAGE->set_title($course->shortname);
|
|
$PAGE->set_heading($course->fullname);
|
|
echo $OUTPUT->header();
|
|
|
|
$viewurl = new moodle_url('/mod/forum/view.php', array('f' => $id));
|
|
if ($discussionid) {
|
|
$a = new stdClass();
|
|
$a->forum = format_string($forum->name);
|
|
$a->discussion = format_string($discussion->name);
|
|
echo $OUTPUT->confirm(get_string('confirmunsubscribediscussion', 'forum', $a),
|
|
$PAGE->url, $viewurl);
|
|
} else {
|
|
echo $OUTPUT->confirm(get_string('confirmunsubscribe', 'forum', format_string($forum->name)),
|
|
$PAGE->url, $viewurl);
|
|
}
|
|
echo $OUTPUT->footer();
|
|
exit;
|
|
}
|
|
require_sesskey();
|
|
if ($discussionid === null) {
|
|
if (\mod_forum\subscriptions::unsubscribe_user($user->id, $forum, $context, true)) {
|
|
redirect(
|
|
$returnto,
|
|
get_string('nownotsubscribed', 'forum', $info),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
} else {
|
|
print_error('cannotunsubscribe', 'forum', get_local_referer(false));
|
|
}
|
|
} else {
|
|
if (\mod_forum\subscriptions::unsubscribe_user_from_discussion($user->id, $discussion, $context)) {
|
|
$info->discussion = $discussion->name;
|
|
redirect(
|
|
$returnto,
|
|
get_string('discussionnownotsubscribed', 'forum', $info),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
} else {
|
|
print_error('cannotunsubscribe', 'forum', get_local_referer(false));
|
|
}
|
|
}
|
|
|
|
} else { // subscribe
|
|
if (\mod_forum\subscriptions::subscription_disabled($forum) && !has_capability('mod/forum:managesubscriptions', $context)) {
|
|
print_error('disallowsubscribe', 'forum', get_local_referer(false));
|
|
}
|
|
if (!has_capability('mod/forum:viewdiscussion', $context)) {
|
|
print_error('noviewdiscussionspermission', 'forum', get_local_referer(false));
|
|
}
|
|
if (is_null($sesskey)) {
|
|
// We came here via link in email.
|
|
$PAGE->set_title($course->shortname);
|
|
$PAGE->set_heading($course->fullname);
|
|
echo $OUTPUT->header();
|
|
|
|
$viewurl = new moodle_url('/mod/forum/view.php', array('f' => $id));
|
|
if ($discussionid) {
|
|
$a = new stdClass();
|
|
$a->forum = format_string($forum->name);
|
|
$a->discussion = format_string($discussion->name);
|
|
echo $OUTPUT->confirm(get_string('confirmsubscribediscussion', 'forum', $a),
|
|
$PAGE->url, $viewurl);
|
|
} else {
|
|
echo $OUTPUT->confirm(get_string('confirmsubscribe', 'forum', format_string($forum->name)),
|
|
$PAGE->url, $viewurl);
|
|
}
|
|
echo $OUTPUT->footer();
|
|
exit;
|
|
}
|
|
require_sesskey();
|
|
if ($discussionid == null) {
|
|
\mod_forum\subscriptions::subscribe_user($user->id, $forum, $context, true);
|
|
redirect(
|
|
$returnto,
|
|
get_string('nowsubscribed', 'forum', $info),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
} else {
|
|
$info->discussion = $discussion->name;
|
|
\mod_forum\subscriptions::subscribe_user_to_discussion($user->id, $discussion, $context);
|
|
redirect(
|
|
$returnto,
|
|
get_string('discussionnowsubscribed', 'forum', $info),
|
|
null,
|
|
\core\output\notification::NOTIFY_SUCCESS
|
|
);
|
|
}
|
|
}
|
|
|