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<?php
/**
* The Search_GlobalsearchController enables users with sufficient permissions
* to search through the specified categories.
*
* This program 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 2 of
* the License, or (at your option) any later version.
*
* @author Manuel Schwarz <manschwa@uos.de>
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
* @since 4.3
*/
class Search_GlobalsearchController extends AuthenticatedController
{
/**
* This action displays the main page of the global search.
* It is also responsible for handling search requests and showing
* search results.
*
* @return null This method does not return any value.
*/
public function index_action()
{
PageLayout::setTitle(_('Globale Suche'));
if (Navigation::hasItem('/search/globalsearch')) {
Navigation::activateItem('/search/globalsearch');
}
PageLayout::addHeadElement('meta', [
'name' => 'studip-cache-prefix',
'content' => md5("{$_COOKIE[Seminar_Session::class]}-{$GLOBALS['user']->id}"),
]);
PageLayout::setBodyElementId('globalsearch-page');
$this->addInfoText();
$this->addSidebar();
}
/**
* Add the sidebar to the search page including the searchable categories
* and their filters.
*/
private function addSidebar()
{
$sidebar = Sidebar::get();
$links_widget = $sidebar->addWidget(new ViewsWidget());
$links_widget->setTitle(_('Ergebnis-Anzeige'));
$links_widget->id = 'category_widget';
$links_widget->addLink(
_('Alle Ergebnisse'),
'#',
null,
['id' => 'show_all_categories']
)->setActive();
$modules = GlobalSearchModule::getActiveSearchModules();
$this->filters['show_all_categories'] = ['semester'];
foreach ($modules as $class_name) {
if (is_a($class_name, 'GlobalSearchModule', true)) {
$this->filters[$class_name] = $class_name::getFilters();
$links_widget->addLink(
$class_name::getName(),
'#' . $class_name,
null,
['id' => "search_category_{$class_name}"]
);
}
}
$filter_widget = $sidebar->addWidget(new OptionsWidget(_('Filter')));
$filter_widget->id = 'filter_widget';
$filter_widget->addElement(
new SelectListElement(
_('Semester'),
'semester',
$this->getSemesters(),
'future',
['id' => 'semester_select']
),
'semester_filter'
);
$filter_widget->addElement(
new SelectListElement(
_('Typ der Veranstaltung'),
'seminar_type',
$this->getSemClasses(),
'',
['id' => 'seminar_type_select']
),
'seminar_type_filter'
);
$filter_widget->addElement(
new SelectListElement(
_('Einrichtung'),
'institute',
$this->getInstitutes(),
'',
['id' => 'institute_select']
),
'institute_filter'
);
}
/**
* Get semesters for the semester-select-filter (dropdown).
* The semester filter shows all available semesters
* and sets the current semester as the selected default.
*
* @return array with key => value pairs like: array('semester_beginn' => 'semester_name')
*/
private function getSemesters()
{
$semesters = [];
$semesters['future'] = _('Aktuelles und nächstes Semester');
$semesters[''] = _('Alle Semester');
$sems = array_reverse(Semester::getAll());
foreach ($sems as $semester) {
$semesters[$semester['beginn']] = $semester['name'];
}
return $semesters;
}
/**
* Get institutes for the institute-select-filter (dropdown).
* The institute filter shows all available institutes and presents the 2-level hierarchy with indented names.
*
* @return array with key => value pairs like: array('institute_id' => 'institute_name')
*/
private function getInstitutes()
{
$institutes = [];
$institutes[''] = _('Alle Einrichtungen');
$insts = Institute::getInstitutes();
foreach ($insts as $institute) {
$institutes[$institute['Institut_id']] = ($institute['is_fak'] ? '' : ' ') . $institute['Name'];
}
return $institutes;
}
/**
* Get seminar types for the seminar-type-select-filter (dropdown).
* The seminar type filter shows all available seminar types and
* seminar type classes which are presented as a 2-level hierarchy with indented names.
*
* @return array with key => value pairs like: array('seminar_type_id' => 'seminar_type_name')
*/
private function getSemClasses()
{
$sem_classes = [];
$sem_classes[''] = _('Alle Veranstaltungsarten');
foreach ($GLOBALS['SEM_CLASS'] as $class_id => $class) {
$sem_classes[$class_id] = $class['name'];
if (!$class['studygroup_mode']) {
foreach ($class->getSemTypes() as $type_id => $type) {
$sem_classes["{$class_id}_{$type_id}"] = " {$type['name']}";
}
}
}
return $sem_classes;
}
/**
* Add some information on how to use the search.
*/
private function addInfoText()
{
Helpbar::get()->addPlainText(_('Platzhalter'), _('_ ist Platzhalter für ein beliebiges Zeichen. % ist Platzhalter für beliebig viele Zeichen. Me_er findet Treffer für Meyer und Meier. M__er findet zusätzlich auch Mayer und Maier. M%er findet alle vorherigen Treffer aber auch Münchner.'));
Helpbar::get()->addPlainText(_('Klick auf Überschrift'), _('Erweitert die ausgewählte Suchkategorie, um mehr Suchergebnisse aus dieser Kategorie anzuzeigen. Ein weiterer Klick zeigt wieder Ergebnisse aus allen Kategorien an.'));
Helpbar::get()->addPlainText(_('Dateisuche'), _('Die Dateisuche kann über einen Schrägstrich (/) verfeinert werden. Beispiel: "Meine Veranstaltung/Datei" zeigt alle Dateien, die das Wort "Datei" enthalten und in "Meine Veranstaltung" sind, an. Die Veranstaltung kann auch auf einen Teil (z.B. Veran/Datei) oder auf die Großbuchstaben bzw. auch deren Abkürzung (z.B. MV/Datei oder V/Datei) beschränkt werden.'));
}
}
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