weekly release 4.0dev
[moodle.git] / mod / forum / settracking.php
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38994d6f 1<?php
2
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3// This file is part of Moodle - http://moodle.org/
4//
5// Moodle is free software: you can redistribute it and/or modify
6// it under the terms of the GNU General Public License as published by
7// the Free Software Foundation, either version 3 of the License, or
8// (at your option) any later version.
9//
10// Moodle is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU General Public License for more details.
14//
15// You should have received a copy of the GNU General Public License
16// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
17
18/**
19 * Set tracking option for the forum.
20 *
01030f1b 21 * @package mod_forum
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22 * @copyright 2005 mchurch
23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
2f67a9b3 24 */
38994d6f 25
cd4e6b17 26require_once("../../config.php");
27require_once("lib.php");
28
29$id = required_param('id',PARAM_INT); // The forum to subscribe or unsubscribe to
30$returnpage = optional_param('returnpage', 'index.php', PARAM_FILE); // Page to return to.
31
7a311adb 32require_sesskey();
cd4e6b17 33
34if (! $forum = $DB->get_record("forum", array("id" => $id))) {
35 print_error('invalidforumid', 'forum');
36}
37
38if (! $course = $DB->get_record("course", array("id" => $forum->course))) {
39 print_error('invalidcoursemodule');
40}
41
42if (! $cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
43 print_error('invalidcoursemodule');
44}
7a311adb 45require_login($course, false, $cm);
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46$returnpageurl = new moodle_url('/mod/forum/' . $returnpage, array('id' => $course->id, 'f' => $forum->id));
47$returnto = forum_go_back_to($returnpageurl);
cd4e6b17 48
49if (!forum_tp_can_track_forums($forum)) {
50 redirect($returnto);
51}
52
39790bd8 53$info = new stdClass();
cd4e6b17 54$info->name = fullname($USER);
55$info->forum = format_string($forum->name);
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56
57$eventparams = array(
58 'context' => context_module::instance($cm->id),
59 'relateduserid' => $USER->id,
60 'other' => array('forumid' => $forum->id),
61);
62
cd4e6b17 63if (forum_tp_is_tracked($forum) ) {
64 if (forum_tp_stop_tracking($forum->id)) {
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65 $event = \mod_forum\event\readtracking_disabled::create($eventparams);
66 $event->trigger();
cd4e6b17 67 redirect($returnto, get_string("nownottracking", "forum", $info), 1);
68 } else {
dcee0b94 69 print_error('cannottrack', '', get_local_referer(false));
38994d6f 70 }
71
cd4e6b17 72} else { // subscribe
73 if (forum_tp_start_tracking($forum->id)) {
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74 $event = \mod_forum\event\readtracking_enabled::create($eventparams);
75 $event->trigger();
cd4e6b17 76 redirect($returnto, get_string("nowtracking", "forum", $info), 1);
77 } else {
dcee0b94 78 print_error('cannottrack', '', get_local_referer(false));
38994d6f 79 }
3d8d8a8c 80}