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<?php
# Lifter010: TODO
/**
* StudygroupSearch.class.php
* class to add Studygroup search to Quicksearch
*
* 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 Michaela Brückner <brueckner@data-quest>
* @copyright 2024 Stud.IP Core-Group
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*/
class StudygroupSearch extends SearchType
{
/**
* title of the search like "search for courses" or just "courses"
* @return string
*/
public function getTitle(): string
{
return _('Studiengruppen suchen');
}
/**
* Returns the results to a given keyword. To get the results is the
* job of this routine and it does not even need to come from a database.
* The results should be an array in the form
* array (
* array($key, $name),
* array($key, $name),
* ...
* )
* where $key is an identifier like user_id and $name is a displayed text
* that should appear to represent that ID.
* @param keyword: string
* @param array $contextual_data an associative array with more variables
* @param int $limit maximum number of results (default: all)
* @param int $offset return results starting from this row (default: 0)
* @return array
*/
public function getResults($keyword, $contextual_data = [], $limit = PHP_INT_MAX, $offset = 0): array
{
$search_helper = new StudipSemSearchHelper();
$search_helper->setParams(
[
'quick_search' => $keyword,
'qs_choose' => $contextual_data['search_sem_qs_choose'] ?? 'all',
'sem' => $contextual_data['search_sem_sem'] ?? 'all',
'category' => $contextual_data['search_sem_category'] ?? null,
'scope_choose' => $contextual_data['search_sem_scope_choose'] ?? null,
'range_choose' => $contextual_data['search_sem_range_choose'] ?? null,
],
!(is_object($GLOBALS['perm'])
&& $GLOBALS['perm']->have_perm(
Config::Get()->SEM_VISIBILITY_PERM)));
$search_helper->doSearch();
$result = $search_helper->getSearchResultAsArray();
if (empty($result)) {
return [];
}
$query = "SELECT s.Seminar_id, CONCAT_WS(' ', s.VeranstaltungsNummer, s.name, CONCAT(' (',
IF(semester_courses.semester_id IS NULL, '" . _('unbegrenzt') . "',
IF(COUNT(DISTINCT semester_courses.semester_id) > 1, CONCAT_WS(' - ', (SELECT start_semester.name FROM `semester_data` AS start_semester WHERE start_semester.semester_id = semester_courses.semester_id ORDER BY `beginn` ASC LIMIT 1), (SELECT end_semester.name FROM `semester_data` AS end_semester WHERE end_semester.semester_id = semester_courses.semester_id ORDER BY `beginn` DESC LIMIT 1)), sem1.name)), ')')) AS Name
FROM seminare AS s
LEFT JOIN semester_courses ON (semester_courses.course_id = s.Seminar_id)
LEFT JOIN `semester_data` sem1 ON (semester_courses.semester_id = sem1.semester_id)
LEFT JOIN seminar_user AS su ON (su.Seminar_id = s.Seminar_id AND su.status='dozent')
LEFT JOIN auth_user_md5 USING (user_id)
WHERE s.Seminar_id IN (?)
GROUP BY s.Seminar_id";
if (Config::get()->IMPORTANT_SEMNUMBER) {
$query .= " ORDER BY s.VeranstaltungsNummer, s.Name";
} else {
$query .= " ORDER BY s.Name";
}
$statement = DBManager::get()->prepare($query);
$statement->execute([
array_slice($result, $offset, $limit) ?: ''
]);
return $statement->fetchAll(PDO::FETCH_NUM);
}
/**
* Returns the path to this file, so that this class can be autoloaded and is
* always available when necessary.
* Should be: "return __file__;"
*
* @return string path to this file
*/
public function includePath(): string
{
return studip_relative_path(__FILE__);
}
}
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