first working version to add covid status to lvlists

2026-07-19 07:52:16 +00:00 · 2021-11-01 13:12:55 +01:00
parent 38cdcef38e
commit 98ffe525b3
3 changed files with 545 additions and 4 deletions
@@ -34,6 +34,7 @@
 	require_once('../../../include/lehrveranstaltung.class.php');
 	require_once('../../../include/phrasen.class.php');
 	require_once('../../../include/vertrag.class.php');
+	require_once '../../../include/covid/covidhelper.class.php';

 	$sprache = getSprache();
 	$p=new phrasen($sprache);
@@ -61,7 +62,8 @@
    	$stsem = $_GET['stsem'];
    else
    	die($p->t('anwesenheitsliste/studiensemesterIstUngueltig'));
-
+	
+$covidhelper = new CovidHelper();
 ?>
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
 "http://www.w3.org/TR/html4/loose.dtd">
@@ -69,6 +71,16 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <link href="../../../skin/style.css.php" rel="stylesheet" type="text/css">
+<link href="../../../vendor/components/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css"/>
+<style type="text/css">
+	.covidstatus {
+		float: right;
+		padding-left: 2.5em;
+	}
+	.covidstatus i {
+		margin-right: .5em;
+	}
+</style>
 </head>

 <body>
@@ -98,7 +110,8 @@

 	  	$lv = new lehrveranstaltung($lvid);

-	  	$aw_content .= "<tr><td><a class='Item' href='anwesenheitsliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&stsem=$stsem'>".$p->t('anwesenheitsliste/gesamtliste')." $lv->bezeichnung</a></td></tr>";
+		$covid_content = ($covidhelper->isUdfDefined()) ? '<a class="covidstatus" href="covidstatusliste.php?stg='.$stg_kz.'.&sem='.$sem.'&lvid='.$lvid.'&stsem='.$stsem.'"><i class="fa fa-qrcode" aria-hidden="true"></i>Covid-Status</a>' : '';
+	  	$aw_content .= "<tr><td><a class='Item' href='anwesenheitsliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&stsem=$stsem'>".$p->t('anwesenheitsliste/gesamtliste')." $lv->bezeichnung</a>" . $covid_content . "</td></tr>";
 	  	$awbild_content .= "<tr><td><a class='Item' href='fotoliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&stsem=$stsem'>".$p->t('anwesenheitsliste/gesamtliste')." $lv->bezeichnung</a></td></tr>";
 	  	$nt_content .= "<tr><td><a class='Item' href='notenliste.xls.php?stg=$stg_kz&sem=$sem&lvid=$lvid&stsem=$stsem'>".$p->t('anwesenheitsliste/gesamtliste')." $lv->bezeichnung</a></td></tr>";

@@ -151,7 +164,8 @@
 			  					}
 			  				}

-			  				$aw_content .= "<tr><td><a class='Item' href='anwesenheitsliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a></td></tr>";
+							$covid_content = ($covidhelper->isUdfDefined()) ? '<a class="covidstatus" href="covidstatusliste.php?stg='.$stg_kz.'.&sem='.$sem.'&lvid='.$lvid.'&lehreinheit_id='.$lastlehreinheit.'&stsem='.$stsem.'"><i class="fa fa-qrcode" aria-hidden="true"></i>Covid-Status</a>' : '';
+			  				$aw_content .= "<tr><td><a class='Item' href='anwesenheitsliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a>" . $covid_content . "</td></tr>";
 			  				$awbild_content .= "<tr><td><a class='Item' href='fotoliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a></td></tr>";
 			  				$nt_content .= "<tr><td><a class='Item' href='notenliste.xls.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a></td></tr>";

@@ -186,7 +200,8 @@
 					}
 				}

-				$aw_content .= "<tr><td><a class='Item' href='anwesenheitsliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a></td></tr>";
+				$covid_content = ($covidhelper->isUdfDefined()) ? '<a class="covidstatus" href="covidstatusliste.php?stg='.$stg_kz.'.&sem='.$sem.'&lvid='.$lvid.'&lehreinheit_id='.$lastlehreinheit.'&stsem='.$stsem.'"><i class="fa fa-qrcode" aria-hidden="true"></i>Covid-Status</a>' : '';
+				$aw_content .= "<tr><td><a class='Item' href='anwesenheitsliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a>" . $covid_content . "</td></tr>";
 				$awbild_content .= "<tr><td><a class='Item' href='fotoliste.pdf.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a></td></tr>";
 				$nt_content .= "<tr><td><a class='Item' href='notenliste.xls.php?stg=$stg_kz&sem=$sem&lvid=$lvid&lehreinheit_id=$lastlehreinheit&stsem=$stsem'>&nbsp;&nbsp;&nbsp;<img src='../../../skin/images/haken.gif' />$kurzbz - $lehrform - $gruppen ($lektoren)</a></td></tr>";
 	  		}
@@ -0,0 +1,337 @@
+<?php
+/* Copyright (C) 2015 fhcomplete.org
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Authors: Manfred Kindl <manfred.kindl@technikum-wien.at>
+ */
+require_once('../../../config/cis.config.inc.php');
+require_once('../../../include/dokument_export.class.php');
+require_once('../../../include/lehrveranstaltung.class.php');
+require_once('../../../include/lehreinheitgruppe.class.php');
+require_once('../../../include/lehreinheit.class.php');
+require_once('../../../include/benutzerberechtigung.class.php');
+require_once('../../../include/lehreinheitmitarbeiter.class.php');
+require_once('../../../include/studiensemester.class.php');
+require_once('../../../include/functions.inc.php');
+require_once('../../../include/erhalter.class.php');
+require_once('../../../include/datum.class.php');
+require_once('../../../include/covid/covidhelper.class.php');
+
+$debug = false;
+
+if (!$db = new basis_db())
+	die('Es konnte keine Verbindung zum Server aufgebaut werden.');
+
+$user=get_uid();
+
+$berechtigung = new benutzerberechtigung();
+$berechtigung->getBerechtigungen($user);
+
+if(isset($_GET['lvid']) && is_numeric($_GET['lvid']))
+	$lvid = $_GET['lvid'];
+else
+	die('Eine gueltige LvID muss uebergeben werden');
+
+$lv = new lehrveranstaltung();
+$lv->load($lvid);
+
+if(isset($_GET['stsem']))
+	$studiensemester = $_GET['stsem'];
+else
+	die('Eine Studiensemester muss uebergeben werden');
+
+if(	!$berechtigung->isBerechtigt('admin')
+	&& !$berechtigung->isBerechtigt('assistenz')
+	&& !$berechtigung->isBerechtigt('lehre', $lv->oe_kurzbz, 's')
+	&& !check_lektor_lehrveranstaltung($user,$lvid,$studiensemester))
+	die('Sie muessen LektorIn der LV sein oder das Recht "ADMIN", "ASSISTENZ" oder "LEHRE" haben, um diese Seite aufrufen zu koennen');
+
+$output='pdf';
+
+if(isset($_GET['output']) && ($output='odt' || $output='doc'))
+	$output=$_GET['output'];
+
+isset($_GET['stg_kz']) ? $studiengang = $_GET['stg_kz'] : $studiengang = NULL;
+isset($_GET['lehreinheit_id']) ? $lehreinheit = $_GET['lehreinheit_id'] : $lehreinheit = NULL;
+
+// Teilnehmende Gruppen laden
+$qry = "SELECT DISTINCT ON(kuerzel, semester, verband, gruppe, gruppe_kurzbz)
+			UPPER(stg_typ::varchar(1) || stg_kurzbz) as kuerzel,
+			semester,
+			verband,
+			gruppe,
+			gruppe_kurzbz
+		FROM campus.vw_lehreinheit
+		WHERE lehrveranstaltung_id=".$db->db_add_param($lvid, FHC_INTEGER)."
+		AND studiensemester_kurzbz=".$db->db_add_param($studiensemester);
+if($lehreinheit!='')
+	$qry.=" AND lehreinheit_id=".$db->db_add_param($lehreinheit, FHC_INTEGER);
+
+$gruppen_string = '';
+if($result = $db->db_query($qry))
+{
+	while($row = $db->db_fetch_object($result))
+	{
+		if($gruppen_string!='')
+			$gruppen_string.=', ';
+		if($row->gruppe_kurzbz=='')
+			$gruppen_string.=trim($row->kuerzel.'-'.$row->semester.$row->verband.$row->gruppe);
+		else
+			$gruppen_string.=$row->gruppe_kurzbz;
+	}
+}
+
+
+// Verplante Räume laden
+$qry = "SELECT distinct(ort_kurzbz)
+        FROM lehre.tbl_stundenplan
+		WHERE lehreinheit_id in
+			(
+				SELECT lehreinheit_id
+				FROM campus.vw_lehreinheit
+				WHERE lehrveranstaltung_id = ".$db->db_add_param($lvid, FHC_INTEGER)."
+ 				AND studiensemester_kurzbz = ".$db->db_add_param($studiensemester)."
+			)";
+if($lehreinheit!='')
+	$qry.= " AND tbl_stundenplan.lehreinheit_id = ".$db->db_add_param($lehreinheit, FHC_INTEGER);
+
+
+$raum_string = '';
+if($result = $db->db_query($qry))
+{
+	while($row = $db->db_fetch_object($result))
+	{
+		if($raum_string!='')
+			$raum_string.=', ';
+		if($row->ort_kurzbz!='')
+			$raum_string.=$row->ort_kurzbz;
+	}
+}
+
+
+$stg = new studiengang();
+$stg->load($lv->studiengang_kz);
+
+$studiengang_bezeichnung=$stg->bezeichnung;
+
+$stg->getAllTypes();
+
+$data = array(
+	'gruppen'=>$gruppen_string,
+	'bezeichnung'=>$lv->bezeichnung,
+	'lehrveranstaltung_id'=>$lv->lehrveranstaltung_id,
+	'studiengang'=>$studiengang_bezeichnung,
+	'studiengang_kz'=>$lv->studiengang_kz,
+	'typ'=>$stg->studiengang_typ_arr[$stg->typ],
+	'ects'=>$lv->ects,
+	'sprache'=>$lv->sprache,
+	'studiensemester'=>$studiensemester,
+	'semester'=>$lv->semester,
+	'orgform'=>$lv->orgform_kurzbz,
+	'raum'=>$raum_string,
+);
+
+//Lehrende der LV laden und in ein Array schreiben
+$lehrende = new lehreinheitmitarbeiter();
+$lehrende->getMitarbeiterLV($lvid, $studiensemester, $lehreinheit);
+$arr_lehrende = array();
+if (isset($lehrende->result))
+{
+	foreach($lehrende->result AS $row)
+	{
+		$data[]=array('lehrende'=>array('uid'=>$row->uid,'name'=>$row->vorname.' '.$row->nachname));
+		$arr_lehrende[]=mb_strtoupper($row->uid);
+	}
+}
+
+
+//Studierende der LV laden und in ein Array schreiben
+
+$qry = 'SELECT
+			distinct on(nachname, vorname, person_id) vorname, nachname, matrikelnr, public.tbl_student.student_uid,
+			tbl_studentlehrverband.semester, tbl_studentlehrverband.verband, tbl_studentlehrverband.gruppe,
+			(SELECT status_kurzbz FROM public.tbl_prestudentstatus WHERE prestudent_id=tbl_student.prestudent_id ORDER BY datum DESC, insertamum DESC, ext_id DESC LIMIT 1) as status,
+			tbl_bisio.bisio_id, tbl_bisio.von, tbl_bisio.bis, tbl_student.studiengang_kz AS stg_kz_student,
+			tbl_note.lkt_ueberschreibbar, tbl_note.anmerkung, tbl_mitarbeiter.mitarbeiter_uid, tbl_person.matr_nr, tbl_studiengang.kurzbzlang, tbl_mobilitaet.mobilitaetstyp_kurzbz
+		FROM
+			campus.vw_student_lehrveranstaltung
+			JOIN public.tbl_benutzer USING(uid)
+			JOIN public.tbl_person USING(person_id) LEFT JOIN public.tbl_student ON(uid=student_uid)
+			LEFT JOIN public.tbl_mitarbeiter ON(uid=mitarbeiter_uid)
+			LEFT JOIN public.tbl_studentlehrverband USING(student_uid,studiensemester_kurzbz)
+			LEFT JOIN lehre.tbl_zeugnisnote on(vw_student_lehrveranstaltung.lehrveranstaltung_id=tbl_zeugnisnote.lehrveranstaltung_id AND tbl_zeugnisnote.student_uid=tbl_student.student_uid AND tbl_zeugnisnote.studiensemester_kurzbz=tbl_studentlehrverband.studiensemester_kurzbz)
+			LEFT JOIN lehre.tbl_note USING (note)
+			LEFT JOIN bis.tbl_bisio ON(uid=tbl_bisio.student_uid)
+			LEFT JOIN public.tbl_studiengang ON(tbl_student.studiengang_kz=tbl_studiengang.studiengang_kz)
+			LEFT JOIN bis.tbl_mobilitaet USING(prestudent_id)
+		WHERE
+			vw_student_lehrveranstaltung.lehrveranstaltung_id='.$db->db_add_param($lvid, FHC_INTEGER).'	AND
+			vw_student_lehrveranstaltung.studiensemester_kurzbz='.$db->db_add_param($studiensemester);';';
+
+
+if($lehreinheit!='')
+	$qry.=' AND vw_student_lehrveranstaltung.lehreinheit_id='.$db->db_add_param($lehreinheit, FHC_INTEGER);
+
+$qry.=' ORDER BY nachname, vorname, person_id, tbl_bisio.bis DESC';
+
+$stsem_obj = new studiensemester();
+$stsem_obj->load($studiensemester);
+$stsemdatumvon = $stsem_obj->start;
+$stsemdatumbis = $stsem_obj->ende;
+
+$erhalter = new erhalter();
+$erhalter->getAll();
+
+$a_o_kz = '9'.sprintf("%03s", $erhalter->result[0]->erhalter_kz); //Stg_Kz AO-Studierende auslesen (9005 fuer FHTW)
+$anzahl_studierende = 0;
+$datum = new datum();
+$zusatz = '';
+
+$studentuids = array();
+if($result = $db->db_query($qry))
+{
+	while($row = $db->db_fetch_object($result))
+	{
+		if($row->status!='Abbrecher' && $row->status!='Unterbrecher')
+		{
+			$anzahl_studierende++;
+
+			if($row->status=='Incoming') //Incoming
+				$zusatz='(i)';
+			else
+				$zusatz='';
+
+			if($row->bisio_id!='' && $row->status!='Incoming' && ($row->bis > $stsemdatumvon || $row->bis=='') && $row->von < $stsemdatumbis) //Outgoing
+				$zusatz.='(o)(ab '.$datum->formatDatum($row->von,'d.m.Y').')';
+
+			if($row->lkt_ueberschreibbar == 'f') // angerechnet / intern angerechnet / nicht zugelassen
+				$zusatz.= '('. $row->anmerkung. ')';
+
+			if($row->mitarbeiter_uid!='') //mitarbeiter
+				$zusatz.='(ma)';
+
+			if($row->stg_kz_student==$a_o_kz) //Außerordentliche Studierende
+				$zusatz.='(a.o.)';
+
+			if($row->mobilitaetstyp_kurzbz !='') //Double Degree Student
+				$zusatz.='(d.d.)';
+
+			//$zusatz.='test';
+
+			$studentuids[] = $row->student_uid;
+			$data[]=array('student'=>array(
+							'uid' => $row->student_uid,
+							'vorname'=>$row->vorname,
+							'nachname'=>$row->nachname,
+							'personenkennzeichen'=>trim($row->matrikelnr),
+							'matr_nr'=>$row->matr_nr,
+							'semester'=>$row->semester,
+							'verband'=>trim($row->verband),
+							'gruppe'=>trim($row->gruppe),
+							'zusatz'=>$zusatz,
+							'studiengang_kurzbz'=>$row->kurzbzlang,
+							'mobilitaetstyp_kurzbz'=>$row->mobilitaetstyp_kurzbz
+							));
+		}
+	}
+	//Anzahl Studierende in Array $data (an erster Stelle) einfuegen
+	$data = array_reverse($data, true);
+	$data['anzahl_studierende'] = $anzahl_studierende;
+	$data = array_reverse($data, true);
+}
+
+$covidhelper = new CovidHelper();
+$covidhelper->fetchCovidStatus($studentuids);
+$covidstatus = $covidhelper->getCovidStatus();
+
+$now = new DateTime('now', new DateTimeZone('Europe/Vienna'));
+header('Content-Type: text/html; charset=utf-8');
+?>
+<!<!doctype html>
+<html>
+<head>
+	<title>FHC - Covidliste</title>
+	<link rel="stylesheet" type="text/css" href="../../../vendor/twbs/bootstrap/dist/css/bootstrap.min.css">
+	<link href="../../../vendor/components/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css"/>	
+</head>
+<body>
+
+<div class="container-fluid">
+	<div class="row">
+		<div class="col-lg-6">
+			
+			<h1>Covid-Status-Liste <?php echo $data['bezeichnung']; ?></h1>
+			<h2>Gruppen: <?php echo $data['gruppen']; ?> Studiensemester: <?php echo $data['studiensemester']; ?></h2>
+			<h3>Lehrende: <?php echo implode(', ',array_unique($arr_lehrende)); ?></h3>
+			<h4>generiert: <?php echo $now->format('d.m.Y H:i'); ?></h4>			
+			
+			<table class="table table-striped table-hover table-condensed">
+				<thead>
+					<tr>
+						<th>Student</th>
+						<th>Kennzeichen</th>
+						<th>Gruppe</th>
+						<th>Covid-Status</th>
+					</tr>
+				</thead>
+				<tbody>
+<?php
+foreach ($data as $value) {
+	if( !(is_array($value) && isset($value['student'])) ) {
+		continue;
+	}
+	$tmpstudent =& $value['student']; 
+?>
+					<tr class="<?php echo $covidhelper->getBootstrapClass($tmpstudent['uid'])?>" title="<?php echo $covidhelper->getTitle($tmpstudent['uid'])?>">
+						<td><?php echo $tmpstudent['nachname'] . ' ' . $tmpstudent['vorname'] . ' ' . $tmpstudent['zusatz']; ?></td>
+						<td><?php echo $tmpstudent['personenkennzeichen']; ?></td>
+						<td><?php echo $tmpstudent['semester'] . $tmpstudent['verband'] . $tmpstudent['gruppe']; ?></td>
+						<td><?php echo $covidhelper->getIconHtml($tmpstudent['uid']); ?></td>
+					</tr>
+<?php
+}
+?>
+				</tbody>
+			</table>
+	
+		</div>
+	</div>
+
+<?php
+if( $debug ) {
+?>
+	<div class="row">
+		<div class="col-lg-6">
+			
+			<div class="debug">
+				<pre>
+<?php
+print_r($data);
+print_r($covidstatus);
+?>
+				</pre>
+			</div>
+			
+		</div>
+	</div>
+<?php
+}
+?>
+
+</div>
+
+</body>
+</html>
@@ -0,0 +1,189 @@
+<?php
+/* Copyright (C) 2006 Technikum-Wien
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Authors: Harald Bamberger <harald.bamberger@technikum-wien.at>
+ */
+require_once(dirname(__DIR__) . '/basis_db.class.php');
+/**
+ * Description of covidhelper
+ *
+ * @author bambi
+ */
+class CovidHelper extends basis_db
+{
+	const STATUS_OK			= 1;
+	const STATUS_NOTOK		= 0;
+	const STATUS_UNKNOWN	= -1;
+	const STATUS_NOTSET		= -2;
+	
+	const TITLE_OK		= 'Covid Status gültig';
+	const TITLE_NOTOK	= 'Covid Status ungültig';
+	const TITLE_UNKNOWN = 'Covid Status unbekannt';
+	
+	const DB_SCHEMA		= 'public';
+	const DB_TABLE		= 'tbl_person';
+	const DB_UDFNAME	= 'udf_3gvalid';
+	
+	protected $isUdfDefined;
+	
+	protected $uids;
+	protected $covidstatus;
+
+	public function __construct()
+	{
+		parent::__construct();
+		$this->uids = array();
+		$this->covidstatus = array();
+		$this->isUdfDefined = false;
+		$this->checkIfUdfValuesAreDefined();
+	}
+
+	public function isUdfDefined() {
+		return $this->isUdfDefined;
+	}
+	
+	public function fetchCovidStatus(array $uids) {
+		$this->uids = $uids;
+		$this->covidstatus = array();
+		$this->fetchCovidValidStatus();
+	}
+	
+	public function getIconHtml($uid) 
+	{
+		$html = '';
+		$status = isset($this->covidstatus[$uid]) ? $this->covidstatus[$uid] : self::STATUS_NOTSET;
+		switch ($status)
+		{
+			case self::STATUS_OK:
+				$html = '<i title="' . $this->getTitle($uid) . '" class="fa fa-check-circle" aria-hidden="true" style="color: green; margin-right: .5em;"></i>';
+				break;
+			case self::STATUS_NOTOK:
+				$html = '<i title="' . $this->getTitle($uid) . '" class="fa fa-times-circle" aria-hidden="true" style="color: red; margin-right: .5em;"></i>';
+				break;
+			case self::STATUS_UNKNOWN:
+				$html = '<i title="' . $this->getTitle($uid) . '" class="fa fa-question-circle" aria-hidden="true" style="color: grey; margin-right: .5em;"></i>';
+				break;
+			default:
+				$html = '';
+				break;
+		}
+		return $html;
+	}
+	
+	public function getBootstrapClass($uid) 
+	{
+		$class = '';
+		$status = isset($this->covidstatus[$uid]) ? $this->covidstatus[$uid] : self::STATUS_NOTSET;
+		switch ($status)
+		{
+			case self::STATUS_OK:
+				$class = 'success';
+				break;
+			case self::STATUS_NOTOK:
+				$class = 'danger';
+				break;
+			case self::STATUS_UNKNOWN:
+				$class = 'warning';
+				break;
+			default:
+				$class = '';
+				break;
+		}
+		return $class;
+	}
+
+	public function getTitle($uid) 
+	{
+		$title = '';
+		$status = isset($this->covidstatus[$uid]) ? $this->covidstatus[$uid] : self::STATUS_NOTSET;
+		switch ($status)
+		{
+			case self::STATUS_OK:
+				$title = self::TITLE_OK;
+				break;
+			case self::STATUS_NOTOK:
+				$title = self::TITLE_NOTOK;
+				break;
+			case self::STATUS_UNKNOWN:
+				$title = self::TITLE_UNKNOWN;
+				break;
+			default:
+				$title = '';
+				break;
+		}
+		return $title;
+	}
+
+	public function getCovidStatus() 
+	{
+		return $this->covidstatus;
+	}
+	
+	protected function fetchCovidValidStatus() 
+	{
+		if( !($this->isUdfDefined && is_array($this->uids)) ) 
+		{
+			return;
+		}
+		$sql = <<<EOSQL
+SELECT b.uid, CASE 
+		WHEN (p."udf_values" -> 'udf_3gvalid')::text::date >= CURRENT_DATE::text::date THEN 1 
+		WHEN (p."udf_values" -> 'udf_3gvalid')::text::date < CURRENT_DATE::text::date THEN 0 
+		ELSE -1 
+	END AS covidvalid 
+	FROM tbl_person p 
+	JOIN tbl_benutzer b ON b.person_id = p.person_id AND b.uid IN ({$this->implode4SQL($this->uids)})
+EOSQL;
+	
+		$this->covidstatus = array();
+		if( $this->db_query($sql) ) 
+		{
+			while( false !== ($row = $this->db_fetch_object()) )
+			{
+				$this->covidstatus[$row->uid] = $row->covidvalid; 
+			}
+		} else {
+			$this->errormsg = "Fehler in der Abfrage des Covidstatus.";
+		}	
+	}
+
+	public function checkIfUdfValuesAreDefined()
+	{
+		$sql = 'SELECT count(name) AS "udfdefined" '
+			 . 'FROM "system"."tbl_udf", jsonb_to_recordset("jsons") AS items(name text) '
+			 . 'WHERE "schema" = \'' . self::DB_SCHEMA . '\' '
+			 . 'AND "table" = \'' . self::DB_TABLE . '\' '
+			 . 'AND "name" = \'' . self::DB_UDFNAME . '\'';
+		if ( $this->db_query($sql) )
+		{
+			if ($row = $this->db_fetch_object())
+			{
+				$this->isUdfDefined = ($row->udfdefined > 0) ? true : false;
+			}
+			else 
+			{
+				$this->errormsg = "Fehler in der Abfrage beim Pruefen der UDFs. Kein Datensatz gefunden.";
+				$this->isUdfDefined = false;
+			}
+		}
+		else 
+		{
+			$this->errormsg = "Fehler in der Abfrage beim Pruefen der UDFs.";
+			$this->isUdfDefined = false;
+		}
+	}
+}