MDL-36778 course - prevent undefined index warnings
[moodle.git] / course / recent_form.php
1 <?php
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/>.
18 /**
19  * Display all recent activity in a flexible way
20  *
21  * @copyright 1999 Martin Dougiamas  http://dougiamas.com
22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23  * @package course
24  */
26 if (!defined('MOODLE_INTERNAL')) {
27     die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
28 }
30 require_once($CFG->libdir.'/formslib.php');
32 class recent_form extends moodleform {
33     function definition() {
34         global $CFG, $COURSE, $USER;
36         $mform =& $this->_form;
37         $context = get_context_instance(CONTEXT_COURSE, $COURSE->id);
38         $modinfo = get_fast_modinfo($COURSE);
39         $sections = get_all_sections($COURSE->id);
41         $mform->addElement('header', 'filters', get_string('managefilters')); //TODO: add better string
43         $groupoptions = array();
44         if (groups_get_course_groupmode($COURSE) == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
45             // limited group access
46             $groups = groups_get_user_groups($COURSE->id);
47             $allgroups = groups_get_all_groups($COURSE->id);
48             if (!empty($groups[$COURSE->defaultgroupingid])) {
49                 foreach ($groups[$COURSE->defaultgroupingid] AS $groupid) {
50                     $groupoptions[$groupid] = format_string($allgroups[$groupid]->name, true, array('context'=>$context));
51                 }
52             }
53         } else {
54             $groupoptions = array('0'=>get_string('allgroups'));
55             if (has_capability('moodle/site:accessallgroups', $context)) {
56                 // user can see all groups
57                 $allgroups = groups_get_all_groups($COURSE->id);
58             } else {
59                 // user can see course level groups
60                 $allgroups = groups_get_all_groups($COURSE->id, 0, $COURSE->defaultgroupingid);
61             }
62             foreach($allgroups as $group) {
63                 $groupoptions[$group->id] = format_string($group->name, true, array('context'=>$context));
64             }
65         }
67         if ($COURSE->id == SITEID) {
68             $viewparticipants = has_capability('moodle/site:viewparticipants', get_context_instance(CONTEXT_SYSTEM));
69         } else {
70             $viewparticipants = has_capability('moodle/course:viewparticipants', $context);
71         }
73         if ($viewparticipants) {
74             $viewfullnames = has_capability('moodle/site:viewfullnames', get_context_instance(CONTEXT_COURSE, $COURSE->id));
76             $options = array();
77             $options[0] = get_string('allparticipants');
78             $options[$CFG->siteguest] = get_string('guestuser');
80             if (isset($groupoptions[0])) {
81                 // can see all enrolled users
82                 if ($enrolled = get_enrolled_users($context, null, 0, user_picture::fields('u'))) {
83                     foreach ($enrolled as $euser) {
84                         $options[$euser->id] = fullname($euser, $viewfullnames);
85                     }
86                 }
87             } else {
88                 // can see users from some groups only
89                 foreach ($groupoptions as $groupid=>$unused) {
90                     if ($enrolled = get_enrolled_users($context, null, $groupid, user_picture::fields('u'))) {
91                         foreach ($enrolled as $euser) {
92                             if (!array_key_exists($euser->id, $options)) {
93                                 $options[$euser->id] = fullname($euser, $viewfullnames);
94                             }
95                         }
96                     }
97                 }
98             }
100             $mform->addElement('select', 'user', get_string('participants'), $options);
101             $mform->setAdvanced('user');
102         } else {
103             // Default to no user.
104             $mform->addElement('hidden', 'user', 0);
105         }
107         $options = array(''=>get_string('allactivities'));
108         $modsused = array();
110         foreach($modinfo->cms as $cm) {
111             if (!$cm->uservisible) {
112                 continue;
113             }
114             $modsused[$cm->modname] = true;
115         }
117         foreach ($modsused as $modname=>$unused) {
118             $libfile = "$CFG->dirroot/mod/$modname/lib.php";
119             if (!file_exists($libfile)) {
120                 unset($modsused[$modname]);
121                 continue;
122             }
123             include_once($libfile);
124             $libfunction = $modname."_get_recent_mod_activity";
125             if (!function_exists($libfunction)) {
126                 unset($modsused[$modname]);
127                 continue;
128             }
129             $options["mod/$modname"] = get_string('allmods', '', get_string('modulenameplural', $modname));
130         }
132         foreach ($modinfo->sections as $section=>$cmids) {
133             $options["section/$section"] = "-- ".get_section_name($COURSE, $sections[$section])." --";
134             foreach ($cmids as $cmid) {
135                 $cm = $modinfo->cms[$cmid];
136                 if (empty($modsused[$cm->modname]) or !$cm->uservisible) {
137                     continue;
138                 }
139                 $options[$cm->id] = format_string($cm->name);
140             }
141         }
142         $mform->addElement('select', 'modid', get_string('activities'), $options);
143         $mform->setAdvanced('modid');
146         if ($groupoptions) {
147             $mform->addElement('select', 'group', get_string('groups'), $groupoptions);
148             $mform->setAdvanced('group');
149         } else {
150             // no access to groups in separate mode
151             $mform->addElement('hidden','group');
152             $mform->setType('group', PARAM_INT);
153             $mform->setConstants(array('group'=>-1));
154         }
156         $options = array('default'  => get_string('bycourseorder'),
157                          'dateasc'  => get_string('datemostrecentlast'),
158                          'datedesc' => get_string('datemostrecentfirst'));
159         $mform->addElement('select', 'sortby', get_string('sortby'), $options);
160         $mform->setAdvanced('sortby');
162         $mform->addElement('date_time_selector', 'date', get_string('since'), array('optional'=>true));
164         $mform->addElement('hidden','id');
165         $mform->setType('id', PARAM_INT);
166         $mform->setType('courseid', PARAM_INT);
168         $this->add_action_buttons(false, get_string('showrecent'));
169     }