1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
<?php
class MyStudygroupsController extends AuthenticatedController
{
public function before_filter(&$action, &$args)
{
parent::before_filter($action, $args);
if (!$GLOBALS['perm']->have_perm('root')) {
Navigation::activateItem('/browse/my_studygroups/index');
}
}
public function index_action($is_widget = false)
{
PageLayout::setHelpKeyword('Basis.MeineStudiengruppen');
PageLayout::setTitle(_('Meine Studiengruppen'));
URLHelper::removeLinkParam('cid');
$this->is_widget = (bool)$is_widget;
$this->studygroups = StudygroupModel::getStudygroups();
$this->nav_elements = MyRealmModel::calc_single_navigation($this->studygroups);
// do not render sidebar if this is the widget
if (!$this->is_widget) {
$this->set_sidebar();
}
}
public function proposals_action()
{
PageLayout::setHelpKeyword('Basis.MeineStudiengruppen');
PageLayout::setTitle(_('Meine Studiengruppen'));
URLHelper::removeLinkParam('cid');
$this->proposed_studygroups = $this->proposeStudygroups();
}
public function set_sidebar()
{
if ($GLOBALS['user']->perms === 'user') {
return;
}
$sidebar = Sidebar::Get();
$actions = new ActionsWidget();
$actions->addLink(
_('Neue Studiengruppe anlegen'),
URLHelper::getURL('dispatch.php/course/wizard', ['studygroup' => 1]),
Icon::create('add')
)->asDialog('size=auto');
if (count($this->studygroups) > 0) {
$actions->addLink(
_('Farbgruppierung ändern'),
URLHelper::getURL('dispatch.php/my_courses/groups/all/true'),
Icon::create('group4')
)->asDialog();
}
$sidebar->addWidget($actions);
}
public function proposeStudygroups($user_id = null, $amount = 4)
{
$user_id ??= User::findCurrent()->id;
$cache_id = 'core/studygroups/proposals/' . $user_id;
$cache = \Studip\Cache\Factory::getCache();
$studygroup_ids = $cache->read($cache_id);
if ($studygroup_ids !== false) {
return Course::findMany($studygroup_ids);
}
// Vorgeschlagen werden sollen Studiengruppen,
// a) in denen Personen sitzen, die auch in anderen Veranstaltungen sitzen, in denen der aktive Nutzer Mitglied ist
// b) die zu dem Studienbereich des Studierenden gehören
// c) die einfach neu sind
// und die zudem aktiv sind. Es wird eine Liste von 36 Studiengruppen gebaut, wovon drei alle 15 Minuten im Widget
// angezeigt werden.
$studygroup_sem_types = array_filter(
array_keys($GLOBALS['SEM_TYPE']),
function ($sem_type_id) {
return (bool) $GLOBALS['SEM_CLASS'][$GLOBALS['SEM_TYPE'][$sem_type_id]['class']]['studygroup_mode'];
}
);
$statement = DBManager::get()->prepare("
SELECT `Seminar_id` FROM (
SELECT `seminare`.`Seminar_id`, COUNT(`seminar_user`.`user_id`) AS `count_colleages`
FROM `seminar_user` AS `my_courses`
LEFT JOIN `seminar_user` AS `my_colleages` ON (`my_colleages`.`Seminar_id` = `my_courses`.`Seminar_id`)
LEFT JOIN `seminar_user` ON (`my_colleages`.`user_id` = `seminar_user`.`user_id`)
LEFT JOIN `seminar_user` AS `am_i_connected` ON (`seminar_user`.`Seminar_id` = `am_i_connected`.`Seminar_id` AND `am_i_connected`.`user_id` = :me)
LEFT JOIN `seminare` ON (`seminare`.`Seminar_id` = `seminar_user`.`Seminar_id`)
WHERE `seminare`.`status` IN (:studygroup_types)
AND `am_i_connected`.`user_id` IS NULL
AND `my_courses`.`user_id` = :me
GROUP BY `seminare`.`seminar_id`
ORDER BY `count_colleages` DESC
LIMIT 12
) AS `colleages_groups`
UNION SELECT `Seminar_id` FROM (
SELECT `seminare`.`Seminar_id`
FROM `seminare`
LEFT JOIN `seminar_user` AS `am_i_connected` ON (`am_i_connected`.`Seminar_id` = `seminare`.`Seminar_id` AND `am_i_connected`.`user_id` = :me)
INNER JOIN `studygroup_stgteil` ON (`studygroup_stgteil`.`studygroup_id` = `seminare`.`Seminar_id`)
INNER JOIN `mvv_stgteil` ON (`studygroup_stgteil`.`stgteil_id` = `mvv_stgteil`.`stgteil_id`)
INNER JOIN `user_studiengang` ON (`user_studiengang`.`fach_id` = `mvv_stgteil`.`fach_id`)
INNER JOIN `mvv_stg_stgteil` ON (`mvv_stg_stgteil`.`stgteil_id` = `mvv_stgteil`.`stgteil_id`)
INNER JOIN `mvv_studiengang` ON (`mvv_studiengang`.`studiengang_id` = `mvv_stg_stgteil`.`studiengang_id`
AND `mvv_studiengang`.`abschluss_id` = `user_studiengang`.`abschluss_id`)
WHERE `am_i_connected`.`user_id` IS NULL
AND `seminare`.`status` IN (:studygroup_types)
AND `user_studiengang`.`user_id` = :me
ORDER BY rand()
LIMIT 12
) AS `same_studyarea_groups`
UNION SELECT `Seminar_id` FROM (
SELECT `seminare`.`Seminar_id`
FROM `seminare`
LEFT JOIN `seminar_user` AS `am_i_connected` ON (`am_i_connected`.`Seminar_id` = `seminare`.`Seminar_id` AND `am_i_connected`.`user_id` = :me)
WHERE `am_i_connected`.`user_id` IS NULL
AND `seminare`.`status` IN (:studygroup_types)
ORDER BY `seminare`.`mkdate` DESC
LIMIT 12
) AS `new_groups`
GROUP BY `Seminar_id`
ORDER BY rand()
LIMIT :amount
");
$statement->execute([
'studygroup_types' => $studygroup_sem_types,
'me' => $user_id,
'amount' => $amount
]);
$group_ids = $statement->fetchAll(PDO::FETCH_COLUMN);
$cache->write($cache_id, $group_ids, 15 * 60);
return Course::findMany($group_ids);
}
}
|
