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main.inc.php
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main.inc.php
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<?php if(!logged_in()):
require("login.inc.php");
else:
$hide_invisible = !(isset($_GET['inv']) && $_GET['inv'] == 1);
$only_feed = isset($_GET['f']) && $_GET['f'] ? intval($_GET['f']) : false;
if($database->query('SELECT COUNT(*) FROM user_feeds WHERE user_id = '.user()->id)->fetchColumn() == 0 && user()->level < 1) {
gotop('index.php?q=feeds');
}
// Rückfrage ob die Drucken Funktion verfügbar ist; per Ajax
if(isset($_GET['ajax']) && $_GET['ajax'] == 'can-print') {
header('Content-type: application/json');
ob_end_clean();
die($ssh_printing_enabled && user()->ssh && user()->ssh['validated'] ? 'true' : 'false');
}
// Notiz ändern
if(isset($_POST['note_id']) && isset($_POST['value'])) {
ob_end_clean();
try {
$stmt = $database->prepare('INSERT INTO user_data (data_id, user_id, comment) VALUES (?, ?, ?)');
$stmt->execute(array(intval($_POST['note_id']), user()->id, $_POST['value']));
}
catch(Exception $e) {
$stmt = $database->prepare('UPDATE user_data SET comment = ? WHERE data_id = ? AND user_id = ?');
$stmt->execute(array($_POST['value'], intval($_POST['note_id']), user()->id));
}
die();
}
// Sichtbarkeit ändern
if($_GET['d']) {
if($database->query('SELECT COUNT(*) FROM data WHERE id = '.intval($_GET['d']))->fetchColumn() == 0) die();
$value = $database->query('SELECT invisible FROM user_data WHERE data_id = '.intval($_GET['d']).' AND user_id = '.user()->id)->fetchColumn();
if($value === false) {
$database->exec('INSERT INTO user_data (user_id, data_id, invisible) VALUES ('.user()->id.', '.intval($_GET['d']).', 1)');
}
else {
$database->exec('UPDATE user_data SET invisible = '.($value == 1 ? 0 : 1).' WHERE user_id = '.user()->id.' AND data_id = '.intval($_GET['d']));
}
if(isset($_GET['ajax'])) {
ob_end_clean();
die();
}
gotop('index.php');
}
// Gelesen-Status ändern
if($_GET['r']) {
if($database->query('SELECT COUNT(*) FROM data WHERE id = '.intval($_GET['r']))->fetchColumn() == 0) die();
$value = $database->query('SELECT known FROM user_data WHERE data_id = '.intval($_GET['r']).
' AND user_id = '.user()->id)->fetchColumn();
if($value === false) {
$database->exec('INSERT INTO user_data (user_id, data_id, known) VALUES ('.user()->id.', '.
intval($_GET['r']).', 1)');
}
else {
$database->exec('UPDATE user_data SET known = 1 WHERE user_id = '.
user()->id.' AND data_id = '.intval($_GET['r']));
}
}
?>
<div id="content">
<h2>Übersicht</h2>
<?php
// Gibt es Kurse, deren Update im Verzug ist?
$update_timestamp = $database->query('SELECT min(update_timestamp) FROM feeds WHERE id IN
(SELECT feed_id FROM user_feeds WHERE user_id = ' . user()->id . ')')->fetchColumn();
if($update_timestamp > 0 && $update_timestamp < time() - (isset($outdated_timeout) ? $outdated_timeout : 3600)):
?>
<p class="info nomargin"><strong>Achtung:</strong> Die Übungsaufgaben sind nicht aktuell. Ein Feed konnte seit <?php
$time = time() - $update_timestamp;
$days = floor($time / 86400);
$time %= 86400;
if($days) echo $days . ' Tage(n), ';
echo gmdate('H:i:s', $time);
?> Stunden nicht geladen werden!</p>
<?php
endif;
?>
<table id="kurse-uebersicht">
<tr><th>Kurs</th><th>Zettel</th><th>Notiz</th><th> </th></tr>
<?php
$descs = array();
foreach($database->query('SELECT id, short FROM feeds') as $feed) $descs[$feed['id']] = $feed['short'];
// Diese ekelige Art mit den Subqueries statt right joins ist leider
// für SQLite-Support notwendig (Stand: SQLite 3)
$exercises = $database->query('
SELECT
id, data, feed_id,
(SELECT comment FROM user_data WHERE user_id = '.user()->id.' AND data_id = id) AS comment,
(SELECT invisible FROM user_data WHERE user_id = '.user()->id.' AND data_id = id) AS invisible,
(SELECT known FROM user_data WHERE user_id = '.user()->id.' AND data_id = id) AS known
FROM
data
WHERE feed_id IN (SELECT feed_id FROM user_feeds WHERE user_id = '.user()->id.')'.
' AND timestamp IS NOT NULL '.
($only_feed !== false ? ' AND feed_id = '.$only_feed : '').
' ORDER BY id ASC');
$outputted = false;
foreach($exercises as $exercise) {
if($exercise['invisible'] && $hide_invisible) continue;
$outputted = true;
$formatted_data = format_data($exercise['data'], $exercise['id']);
$classes = ($formatted_data != $data && !$exercise['known']) ? ' neu' : '';
echo('<tr class="'.$classes.'" id="data-'.$exercise['id'].'"><td><a class="course-disp-only" href="index.php?inv=' . ($hide_invisible ? 0 : 1 ) .
'&f=' . $exercise['feed_id'] . '">'.
htmlspecialchars($descs[$exercise['feed_id']]).'</a></td><td>'.
$formatted_data.'</td><td class="editable-note" id="edit-'.$exercise['id'].'">'.
htmlspecialchars($exercise['comment']).'</td><td>');
echo( '<a class="erledigt" href="index.php?inv=' . ($hide_invisible ? 0 : 1 ) . '&f=' . ($only_feed !== false ? $only_feed : '') .
'&d=' . $exercise['id'] . '">'.
($exercise['invisible'] == 1 ? 'Unerledigt' : 'Erledigt').'</a></td></tr>');
}
if(!$outputted) {
echo('<tr><td colspan="4">Derzeit sind keine Aufgaben zu bearbeiten.</td></tr>');
}
?>
</table>
<p class="right small">
<a href="index.php?inv=<?=$hide_invisible ? 1 : 0?>&f=<?=$only_feed ? $only_feed : ''?>"><?=$hide_invisible ? 'Erledigte Übungen anzeigen' :
'Erledigte Übungen ausblenden'?></a>
<?php if($only_feed): ?>
| <a href="index.php?inv=<?=$hide_invisible ? 0 : 1?>">Alle Fächer anzeigen</a>
<?php endif; ?>
</p>
<div id="course_links">
<h3>Links auf Deine Kurse</h3>
<ul>
<?php
$course_urls = $database->query('SELECT feed_id, title, url FROM feed_links WHERE feed_id IN
(SELECT feed_id FROM user_feeds WHERE user_id = ' . user()->id . ')');
foreach($course_urls as $course) {
echo('<li><a data-id="' . $course['feed_id'] . '" data-title="' . htmlspecialchars($course['title']) . '"
href="' . htmlspecialchars($course['url']) . '">' . htmlspecialchars($descs[$course['feed_id']]) . ': ' .
htmlspecialchars($course['title']) . '</a></li>');
}
?>
</ul>
</div>
<?php if(user()->level >= 1):
if(isset($_GET['delsug'])) {
$uid = $database->query('SELECT user_id FROM suggestions WHERE id = '.intval($_GET['delsug']))->fetchColumn();
if($uid) {
if($_GET['response']) {
status_message('Es gibt eine Rückfrage zu Deinem vorgeschlagenen Kurs:<br/>' . htmlspecialchars($_GET['response']), $uid);
}
else {
status_message('Deine vorgeschlagenen Kurse wurden von uns eingestellt! Du kannst sie nun abbonieren.', $uid);
}
}
$database->query('DELETE FROM suggestions WHERE id = '.intval($_GET['delsug']));
gotop("index.php");
}
$suggestions = $database->query('SELECT * FROM suggestions')->fetchAll();
if($suggestions):
?>
<h3>Vorschläge</h3>
<p>Hier findest Du Vorschläge anderer Benutzer für neue Kurse</p>
<ul>
<?php
foreach($suggestions as $suggestion) {
echo('<li>'.nl2br(htmlspecialchars($suggestion['text'])).' (<a class="confirm resolve_sug" href="index.php?delsug='.$suggestion['id'].'">Erledigt</a>)</li>');
}
?>
</ul>
<?php endif;
endif; ?>
</div>
<?php endif; ?>