mirror of
https://github.com/janunger/rheinwerk-video-training.git
synced 2024-11-23 23:53:41 +01:00
Kapitel 6 Lektion 7 gesplittet
This commit is contained in:
Jan Unger
parent
88cf71d772
commit
a4afe1a11c
@ -12,23 +12,3 @@ function holeDatenbankverbindung()
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[PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"]
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);
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}
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function holeLied($liedId)
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{
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$db = holeDatenbankverbindung();
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$liedStatement = $db->prepare("
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SELECT
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lieder.track,
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lieder.titel,
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cds.id AS cd_id,
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cds.name AS cdname,
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kuenstler.name AS kuenstlername
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FROM lieder
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LEFT JOIN cds ON lieder.cd_id = cds.id
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LEFT JOIN kuenstler ON cds.kuenstler_id = kuenstler.id
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WHERE lieder.id = :lied_id
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");
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$liedStatement->execute(['lied_id' => $liedId]);
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return $liedStatement->fetch(PDO::FETCH_ASSOC);
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}
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@ -5,12 +5,8 @@ require __DIR__ . '/_application.php';
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$db = holeDatenbankverbindung();
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if (count($_POST) > 0) {
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$insertStatement = $db->prepare("INSERT INTO lieder (cd_id, track, titel) VALUES (:cd_id, :track, :titel)");
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$insertStatement->execute([
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'cd_id' => $_GET['id'],
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'track' => $_POST['track'],
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'titel' => $_POST['titel']
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]);
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// TODO: Lied in die Datenbank speichern
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header('Location: cd.php?id=' . htmlspecialchars($_GET['id']));
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exit;
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@ -29,7 +25,7 @@ $cdStatement = $db->prepare("
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$cdStatement->execute(['cd_id' => $_GET['id']]);
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$cd = $cdStatement->fetch(PDO::FETCH_ASSOC);
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$liederStatement = $db->prepare("SELECT * FROM lieder where cd_id = :cd_id ORDER BY track ASC");
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$liederStatement = $db->prepare("SELECT * FROM lieder where cd_id = :cd_id");
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$liederStatement->execute(['cd_id' => $_GET['id']]);
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$lieder = $liederStatement->fetchAll(PDO::FETCH_ASSOC);
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@ -3,26 +3,20 @@
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require __DIR__ . '/_application.php';
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$meldungen = [];
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$db = holeDatenbankverbindung();
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if (!isset($_GET['id'])) {
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$meldungen[] = 'Bitte geben Sie die ID des Liedes an, das Sie bearbeiten möchten.';
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}
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$lied = holeLied($_GET['id']);
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// TODO: Lied mit Angaben zu CD und Künstler aus der Datenbank laden
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$lied = [];
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if (!$lied) {
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$meldungen[] = 'Es konnte kein Lied mit der ID ' . htmlspecialchars($_GET['id']) . ' gefunden werden.';
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}
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if (isset($_POST['aktion'])) {
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if ($_POST['aktion'] === 'speichern') {
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$updateStatement = $db->prepare("UPDATE lieder SET track = :track, titel = :titel WHERE id = :lied_id");
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$updateStatement->execute([
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'track' => $_POST['track'],
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'titel' => $_POST['titel'],
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'lied_id' => $_GET['id']
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]);
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}
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if (isset($_POST['aktion']) && $_POST['aktion'] === 'speichern') {
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// TODO: Lied in der Datenbank aktualisieren
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header('Location: cd.php?id=' . htmlspecialchars($lied['cd_id']));
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exit;
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@ -3,22 +3,20 @@
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require __DIR__ . '/_application.php';
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$meldungen = [];
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$db = holeDatenbankverbindung();
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if (!isset($_GET['id'])) {
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$meldungen[] = 'Bitte geben Sie die ID des Liedes an, das Sie löschen möchten.';
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}
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$lied = holeLied($_GET['id']);
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// TODO: Lied aus der Datenbank laden (analog zu lied_bearbeiten.php)
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$lied = [];
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if (!$lied) {
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$meldungen[] = 'Es konnte kein Lied mit der ID ' . htmlspecialchars($_GET['id']) . ' gefunden werden.';
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}
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if (isset($_POST['aktion'])) {
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if ($_POST['aktion'] === 'loeschen') {
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$deleteStatement = $db->prepare("DELETE FROM lieder WHERE id = :lied_id");
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$deleteStatement->execute(['lied_id' => $_GET['id']]);
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}
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if (isset($_POST['aktion']) && $_POST['aktion'] === 'loeschen') {
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// TODO: Lied aus der Datenbank löschen
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header('Location: cd.php?id=' . htmlspecialchars($lied['cd_id']));
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exit;
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14
Kapitel_6/Lektion_8/mediathek/_application.php
Executable file
14
Kapitel_6/Lektion_8/mediathek/_application.php
Executable file
@ -0,0 +1,14 @@
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<?php
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/**
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* @return PDO
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*/
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function holeDatenbankverbindung()
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{
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return new PDO(
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'mysql:dbname=mediathek;host=localhost',
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'root',
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'root',
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[PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"]
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);
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}
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73
Kapitel_6/Lektion_8/mediathek/cd.php
Executable file
73
Kapitel_6/Lektion_8/mediathek/cd.php
Executable file
@ -0,0 +1,73 @@
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<?php
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require __DIR__ . '/_application.php';
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$db = holeDatenbankverbindung();
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if (count($_POST) > 0) {
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// TODO: Lied in die Datenbank speichern
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header('Location: cd.php?id=' . htmlspecialchars($_GET['id']));
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exit;
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}
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$cdStatement = $db->prepare("
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SELECT
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cds.id,
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cds.name AS cdname,
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cds.erscheinungsjahr,
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kuenstler.name AS kuenstlername
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FROM cds
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LEFT JOIN kuenstler ON cds.kuenstler_id = kuenstler.id
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WHERE cds.id = :cd_id
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");
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$cdStatement->execute(['cd_id' => $_GET['id']]);
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$cd = $cdStatement->fetch(PDO::FETCH_ASSOC);
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$liederStatement = $db->prepare("SELECT * FROM lieder where cd_id = :cd_id");
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$liederStatement->execute(['cd_id' => $_GET['id']]);
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$lieder = $liederStatement->fetchAll(PDO::FETCH_ASSOC);
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Mediathek</title>
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</head>
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<body>
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<h1>
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<?= htmlspecialchars($cd['cdname']) ?>
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(<?= htmlspecialchars($cd['kuenstlername']) ?>, <?= htmlspecialchars($cd['erscheinungsjahr']) ?>)
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</h1>
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<form action="cd.php?id=<?= htmlspecialchars($_GET['id']) ?>" method="post">
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<table>
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<tr>
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<th>Track</th>
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<th>Titel</th>
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<th></th>
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<th></th>
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</tr>
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<?php foreach ($lieder as $lied): ?>
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<tr>
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<td><?= htmlspecialchars($lied['track']) ?></td>
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<td><?= htmlspecialchars($lied['titel']) ?></td>
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<td><a href="lied_bearbeiten.php?id=<?= htmlspecialchars($lied['id']) ?>">Bearbeiten ...</a></td>
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<td><a href="lied_loeschen.php?id=<?= htmlspecialchars($lied['id']) ?>">Löschen ...</a></td>
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</tr>
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<?php endforeach; ?>
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<tr>
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<td><input type="text" name="track" placeholder="Track"/></td>
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<td><input type="text" name="titel" placeholder="Titel"/></td>
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</tr>
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</table>
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<input type="submit" value="Hinzufügen"/>
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</form>
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<p><a href="index.php">zur Übersicht</a></p>
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</body>
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</html>
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46
Kapitel_6/Lektion_8/mediathek/index.php
Executable file
46
Kapitel_6/Lektion_8/mediathek/index.php
Executable file
@ -0,0 +1,46 @@
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<?php
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require __DIR__ . '/_application.php';
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$db = holeDatenbankverbindung();
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$statement = $db->query("
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SELECT
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cds.id,
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cds.name AS cdname,
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cds.erscheinungsjahr,
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kuenstler.name AS kuenstlername
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FROM cds
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LEFT JOIN kuenstler ON cds.kuenstler_id = kuenstler.id
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");
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$cds = $statement->fetchAll(PDO::FETCH_ASSOC);
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Mediathek</title>
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</head>
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<body>
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<table>
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<tr>
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<th>Künstler</th>
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<th>Album</th>
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<th>Erscheinungsjahr</th>
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</tr>
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<?php foreach ($cds as $cd): ?>
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<tr>
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<td><?= htmlspecialchars($cd['kuenstlername']) ?></td>
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<td>
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<a href="cd.php?id=<?= $cd['id'] ?>">
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<?= htmlspecialchars($cd['cdname']) ?>
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</a>
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</td>
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<td><?= htmlspecialchars($cd['erscheinungsjahr']) ?></td>
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</tr>
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<?php endforeach; ?>
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</table>
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</body>
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</html>
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57
Kapitel_6/Lektion_8/mediathek/lied_bearbeiten.php
Executable file
57
Kapitel_6/Lektion_8/mediathek/lied_bearbeiten.php
Executable file
@ -0,0 +1,57 @@
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<?php
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require __DIR__ . '/_application.php';
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$meldungen = [];
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if (!isset($_GET['id'])) {
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$meldungen[] = 'Bitte geben Sie die ID des Liedes an, das Sie bearbeiten möchten.';
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}
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// TODO: Lied mit Angaben zu CD und Künstler aus der Datenbank laden
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$lied = [];
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if (!$lied) {
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$meldungen[] = 'Es konnte kein Lied mit der ID ' . htmlspecialchars($_GET['id']) . ' gefunden werden.';
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}
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if (isset($_POST['aktion']) && $_POST['aktion'] === 'speichern') {
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// TODO: Lied in der Datenbank aktualisieren
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header('Location: cd.php?id=' . htmlspecialchars($lied['cd_id']));
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exit;
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}
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Mediathek</title>
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</head>
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<body>
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<?php if (count($meldungen) > 0): ?>
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<p>Fehler:</p>
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<ul>
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<?php foreach ($meldungen as $meldung): ?>
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<li><?= htmlspecialchars($meldung) ?></li>
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<?php endforeach; ?>
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</ul>
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<?php endif; ?>
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<form action="lied_bearbeiten.php?id=<?= htmlspecialchars($_GET['id']) ?>" method="post">
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<h1>Lied bearbeiten</h1>
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<h2>'<?= htmlspecialchars($lied['cdname']) ?>' (<?= htmlspecialchars($lied['kuenstlername']) ?>)</h2>
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<label>Track
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<input type="text" name="track" value="<?= htmlspecialchars($lied['track']) ?>"/>
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</label>
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<label>Titel
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<input type="text" name="titel" value="<?= htmlspecialchars($lied['titel']) ?>"/>
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</label>
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<button type="submit" name="aktion" value="speichern">Speichern</button>
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<button type="submit" name="aktion" value="abbrechen">Abbrechen</button>
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</form>
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</body>
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</html>
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56
Kapitel_6/Lektion_8/mediathek/lied_loeschen.php
Executable file
56
Kapitel_6/Lektion_8/mediathek/lied_loeschen.php
Executable file
@ -0,0 +1,56 @@
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<?php
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require __DIR__ . '/_application.php';
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$meldungen = [];
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if (!isset($_GET['id'])) {
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$meldungen[] = 'Bitte geben Sie die ID des Liedes an, das Sie löschen möchten.';
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}
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// TODO: Lied aus der Datenbank laden (analog zu lied_bearbeiten.php)
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$lied = [];
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if (!$lied) {
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$meldungen[] = 'Es konnte kein Lied mit der ID ' . htmlspecialchars($_GET['id']) . ' gefunden werden.';
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}
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if (isset($_POST['aktion']) && $_POST['aktion'] === 'loeschen') {
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// TODO: Lied aus der Datenbank löschen
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header('Location: cd.php?id=' . htmlspecialchars($lied['cd_id']));
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exit;
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}
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Mediathek</title>
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</head>
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<body>
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<?php if (count($meldungen) > 0): ?>
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<p>Fehler:</p>
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<ul>
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<?php foreach ($meldungen as $meldung): ?>
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<li><?= htmlspecialchars($meldung) ?></li>
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<?php endforeach; ?>
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</ul>
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<?php else: ?>
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<form action="lied_loeschen.php?id=<?= htmlspecialchars($_GET['id']) ?>" method="post">
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<h1>Lied löschen</h1>
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<h2>'<?= htmlspecialchars($lied['cdname']) ?>' (<?= htmlspecialchars($lied['kuenstlername']) ?>)</h2>
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<p>
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Möchten Sie Track <?= $lied['track'] ?> '<?= htmlspecialchars($lied['titel']) ?>' löschen?<br>
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Diese Aktion kann nicht rückgängig gemacht werden.
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</p>
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<button type="submit" name="aktion" value="loeschen">Löschen!</button>
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<button type="submit" name="aktion" value="abbrechen">Abbrechen</button>
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</form>
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<?php endif; ?>
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</body>
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</html>
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153
Kapitel_6/Lektion_8/mediathek/mediathek.sql
Executable file
153
Kapitel_6/Lektion_8/mediathek/mediathek.sql
Executable file
@ -0,0 +1,153 @@
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-- phpMyAdmin SQL Dump
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-- version 4.4.10
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-- http://www.phpmyadmin.net
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--
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-- Host: localhost:3306
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-- Erstellungszeit: 08. Aug 2016 um 18:32
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-- Server-Version: 5.5.42
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-- PHP-Version: 7.0.8
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SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
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SET time_zone = "+00:00";
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/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
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/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
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/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
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/*!40101 SET NAMES utf8mb4 */;
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--
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-- Datenbank: `mediathek`
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--
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-- --------------------------------------------------------
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--
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-- Tabellenstruktur für Tabelle `cds`
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--
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DROP TABLE IF EXISTS `cds`;
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CREATE TABLE `cds` (
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`id` int(11) NOT NULL,
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`kuenstler_id` int(11) NOT NULL,
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`name` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
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`erscheinungsjahr` int(11) DEFAULT NULL
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) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
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--
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-- Daten für Tabelle `cds`
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--
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INSERT INTO `cds` (`id`, `kuenstler_id`, `name`, `erscheinungsjahr`) VALUES
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(1, 1, 'Wallflower', 2015),
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(2, 2, 'Wo der Pfeffer wächst', 2004),
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(3, 1, 'The Girl In The Other Room', 2004);
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-- --------------------------------------------------------
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--
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-- Tabellenstruktur für Tabelle `kuenstler`
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--
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DROP TABLE IF EXISTS `kuenstler`;
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CREATE TABLE `kuenstler` (
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`id` int(11) NOT NULL,
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`name` varchar(32) COLLATE utf8_unicode_ci NOT NULL
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) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
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--
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-- Daten für Tabelle `kuenstler`
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--
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INSERT INTO `kuenstler` (`id`, `name`) VALUES
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(1, 'Diana Krall'),
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(2, 'Wise Guys');
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-- --------------------------------------------------------
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--
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-- Tabellenstruktur für Tabelle `lieder`
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--
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DROP TABLE IF EXISTS `lieder`;
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CREATE TABLE `lieder` (
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`id` int(11) NOT NULL,
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`cd_id` int(11) NOT NULL,
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`track` int(11) NOT NULL,
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`titel` varchar(64) COLLATE utf8_unicode_ci NOT NULL
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) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
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--
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-- Daten für Tabelle `lieder`
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--
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INSERT INTO `lieder` (`id`, `cd_id`, `track`, `titel`) VALUES
|
||||
(1, 1, 1, 'California Dreamin'''),
|
||||
(2, 1, 2, 'Desperado'),
|
||||
(3, 1, 3, 'Superstar'),
|
||||
(4, 2, 1, 'Wo der Pfeffer wächst'),
|
||||
(5, 2, 2, 'Einer von den Wise Guys'),
|
||||
(6, 3, 1, 'Stop This World');
|
||||
|
||||
--
|
||||
-- Indizes der exportierten Tabellen
|
||||
--
|
||||
|
||||
--
|
||||
-- Indizes für die Tabelle `cds`
|
||||
--
|
||||
ALTER TABLE `cds`
|
||||
ADD PRIMARY KEY (`id`),
|
||||
ADD KEY `kuenstler_id` (`kuenstler_id`);
|
||||
|
||||
--
|
||||
-- Indizes für die Tabelle `kuenstler`
|
||||
--
|
||||
ALTER TABLE `kuenstler`
|
||||
ADD PRIMARY KEY (`id`);
|
||||
|
||||
--
|
||||
-- Indizes für die Tabelle `lieder`
|
||||
--
|
||||
ALTER TABLE `lieder`
|
||||
ADD PRIMARY KEY (`id`),
|
||||
ADD KEY `cd_id` (`cd_id`);
|
||||
|
||||
--
|
||||
-- AUTO_INCREMENT für exportierte Tabellen
|
||||
--
|
||||
|
||||
--
|
||||
-- AUTO_INCREMENT für Tabelle `cds`
|
||||
--
|
||||
ALTER TABLE `cds`
|
||||
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=4;
|
||||
--
|
||||
-- AUTO_INCREMENT für Tabelle `kuenstler`
|
||||
--
|
||||
ALTER TABLE `kuenstler`
|
||||
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=3;
|
||||
--
|
||||
-- AUTO_INCREMENT für Tabelle `lieder`
|
||||
--
|
||||
ALTER TABLE `lieder`
|
||||
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=7;
|
||||
--
|
||||
-- Constraints der exportierten Tabellen
|
||||
--
|
||||
|
||||
--
|
||||
-- Constraints der Tabelle `cds`
|
||||
--
|
||||
ALTER TABLE `cds`
|
||||
ADD CONSTRAINT `cds_ibfk_1` FOREIGN KEY (`kuenstler_id`) REFERENCES `kuenstler` (`id`);
|
||||
|
||||
--
|
||||
-- Constraints der Tabelle `lieder`
|
||||
--
|
||||
ALTER TABLE `lieder`
|
||||
ADD CONSTRAINT `lieder_ibfk_1` FOREIGN KEY (`cd_id`) REFERENCES `cds` (`id`);
|
||||
|
||||
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
|
||||
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
|
||||
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
|
||||
34
Kapitel_6/Lektion_8/mediathek_loesung/_application.php
Executable file
34
Kapitel_6/Lektion_8/mediathek_loesung/_application.php
Executable file
@ -0,0 +1,34 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* @return PDO
|
||||
*/
|
||||
function holeDatenbankverbindung()
|
||||
{
|
||||
return new PDO(
|
||||
'mysql:dbname=mediathek;host=localhost',
|
||||
'root',
|
||||
'root',
|
||||
[PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"]
|
||||
);
|
||||
}
|
||||
|
||||
function holeLied($liedId)
|
||||
{
|
||||
$db = holeDatenbankverbindung();
|
||||
$liedStatement = $db->prepare("
|
||||
SELECT
|
||||
lieder.track,
|
||||
lieder.titel,
|
||||
cds.id AS cd_id,
|
||||
cds.name AS cdname,
|
||||
kuenstler.name AS kuenstlername
|
||||
FROM lieder
|
||||
LEFT JOIN cds ON lieder.cd_id = cds.id
|
||||
LEFT JOIN kuenstler ON cds.kuenstler_id = kuenstler.id
|
||||
WHERE lieder.id = :lied_id
|
||||
");
|
||||
$liedStatement->execute(['lied_id' => $liedId]);
|
||||
|
||||
return $liedStatement->fetch(PDO::FETCH_ASSOC);
|
||||
}
|
||||
77
Kapitel_6/Lektion_8/mediathek_loesung/cd.php
Executable file
77
Kapitel_6/Lektion_8/mediathek_loesung/cd.php
Executable file
@ -0,0 +1,77 @@
|
||||
<?php
|
||||
|
||||
require __DIR__ . '/_application.php';
|
||||
|
||||
$db = holeDatenbankverbindung();
|
||||
|
||||
if (count($_POST) > 0) {
|
||||
$insertStatement = $db->prepare("INSERT INTO lieder (cd_id, track, titel) VALUES (:cd_id, :track, :titel)");
|
||||
$insertStatement->execute([
|
||||
'cd_id' => $_GET['id'],
|
||||
'track' => $_POST['track'],
|
||||
'titel' => $_POST['titel']
|
||||
]);
|
||||
|
||||
header('Location: cd.php?id=' . htmlspecialchars($_GET['id']));
|
||||
exit;
|
||||
}
|
||||
|
||||
$cdStatement = $db->prepare("
|
||||
SELECT
|
||||
cds.id,
|
||||
cds.name AS cdname,
|
||||
cds.erscheinungsjahr,
|
||||
kuenstler.name AS kuenstlername
|
||||
FROM cds
|
||||
LEFT JOIN kuenstler ON cds.kuenstler_id = kuenstler.id
|
||||
WHERE cds.id = :cd_id
|
||||
");
|
||||
$cdStatement->execute(['cd_id' => $_GET['id']]);
|
||||
$cd = $cdStatement->fetch(PDO::FETCH_ASSOC);
|
||||
|
||||
$liederStatement = $db->prepare("SELECT * FROM lieder where cd_id = :cd_id ORDER BY track ASC");
|
||||
$liederStatement->execute(['cd_id' => $_GET['id']]);
|
||||
$lieder = $liederStatement->fetchAll(PDO::FETCH_ASSOC);
|
||||
|
||||
?>
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>Mediathek</title>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<h1>
|
||||
<?= htmlspecialchars($cd['cdname']) ?>
|
||||
(<?= htmlspecialchars($cd['kuenstlername']) ?>, <?= htmlspecialchars($cd['erscheinungsjahr']) ?>)
|
||||
</h1>
|
||||
|
||||
<form action="cd.php?id=<?= htmlspecialchars($_GET['id']) ?>" method="post">
|
||||
<table>
|
||||
<tr>
|
||||
<th>Track</th>
|
||||
<th>Titel</th>
|
||||
<th></th>
|
||||
<th></th>
|
||||
</tr>
|
||||
<?php foreach ($lieder as $lied): ?>
|
||||
<tr>
|
||||
<td><?= htmlspecialchars($lied['track']) ?></td>
|
||||
<td><?= htmlspecialchars($lied['titel']) ?></td>
|
||||
<td><a href="lied_bearbeiten.php?id=<?= htmlspecialchars($lied['id']) ?>">Bearbeiten ...</a></td>
|
||||
<td><a href="lied_loeschen.php?id=<?= htmlspecialchars($lied['id']) ?>">Löschen ...</a></td>
|
||||
</tr>
|
||||
<?php endforeach; ?>
|
||||
<tr>
|
||||
<td><input type="text" name="track" placeholder="Track"/></td>
|
||||
<td><input type="text" name="titel" placeholder="Titel"/></td>
|
||||
</tr>
|
||||
</table>
|
||||
<input type="submit" value="Hinzufügen"/>
|
||||
</form>
|
||||
|
||||
<p><a href="index.php">zur Übersicht</a></p>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
46
Kapitel_6/Lektion_8/mediathek_loesung/index.php
Executable file
46
Kapitel_6/Lektion_8/mediathek_loesung/index.php
Executable file
@ -0,0 +1,46 @@
|
||||
<?php
|
||||
|
||||
require __DIR__ . '/_application.php';
|
||||
|
||||
$db = holeDatenbankverbindung();
|
||||
$statement = $db->query("
|
||||
SELECT
|
||||
cds.id,
|
||||
cds.name AS cdname,
|
||||
cds.erscheinungsjahr,
|
||||
kuenstler.name AS kuenstlername
|
||||
FROM cds
|
||||
LEFT JOIN kuenstler ON cds.kuenstler_id = kuenstler.id
|
||||
");
|
||||
$cds = $statement->fetchAll(PDO::FETCH_ASSOC);
|
||||
|
||||
?>
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>Mediathek</title>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<table>
|
||||
<tr>
|
||||
<th>Künstler</th>
|
||||
<th>Album</th>
|
||||
<th>Erscheinungsjahr</th>
|
||||
</tr>
|
||||
<?php foreach ($cds as $cd): ?>
|
||||
<tr>
|
||||
<td><?= htmlspecialchars($cd['kuenstlername']) ?></td>
|
||||
<td>
|
||||
<a href="cd.php?id=<?= $cd['id'] ?>">
|
||||
<?= htmlspecialchars($cd['cdname']) ?>
|
||||
</a>
|
||||
</td>
|
||||
<td><?= htmlspecialchars($cd['erscheinungsjahr']) ?></td>
|
||||
</tr>
|
||||
<?php endforeach; ?>
|
||||
</table>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
63
Kapitel_6/Lektion_8/mediathek_loesung/lied_bearbeiten.php
Executable file
63
Kapitel_6/Lektion_8/mediathek_loesung/lied_bearbeiten.php
Executable file
@ -0,0 +1,63 @@
|
||||
<?php
|
||||
|
||||
require __DIR__ . '/_application.php';
|
||||
|
||||
$meldungen = [];
|
||||
$db = holeDatenbankverbindung();
|
||||
|
||||
if (!isset($_GET['id'])) {
|
||||
$meldungen[] = 'Bitte geben Sie die ID des Liedes an, das Sie bearbeiten möchten.';
|
||||
}
|
||||
|
||||
$lied = holeLied($_GET['id']);
|
||||
if (!$lied) {
|
||||
$meldungen[] = 'Es konnte kein Lied mit der ID ' . htmlspecialchars($_GET['id']) . ' gefunden werden.';
|
||||
}
|
||||
|
||||
if (isset($_POST['aktion'])) {
|
||||
if ($_POST['aktion'] === 'speichern') {
|
||||
$updateStatement = $db->prepare("UPDATE lieder SET track = :track, titel = :titel WHERE id = :lied_id");
|
||||
$updateStatement->execute([
|
||||
'track' => $_POST['track'],
|
||||
'titel' => $_POST['titel'],
|
||||
'lied_id' => $_GET['id']
|
||||
]);
|
||||
}
|
||||
|
||||
header('Location: cd.php?id=' . htmlspecialchars($lied['cd_id']));
|
||||
exit;
|
||||
}
|
||||
|
||||
?>
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>Mediathek</title>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<?php if (count($meldungen) > 0): ?>
|
||||
<p>Fehler:</p>
|
||||
<ul>
|
||||
<?php foreach ($meldungen as $meldung): ?>
|
||||
<li><?= htmlspecialchars($meldung) ?></li>
|
||||
<?php endforeach; ?>
|
||||
</ul>
|
||||
<?php endif; ?>
|
||||
<form action="lied_bearbeiten.php?id=<?= htmlspecialchars($_GET['id']) ?>" method="post">
|
||||
<h1>Lied bearbeiten</h1>
|
||||
<h2>'<?= htmlspecialchars($lied['cdname']) ?>' (<?= htmlspecialchars($lied['kuenstlername']) ?>)</h2>
|
||||
|
||||
<label>Track
|
||||
<input type="text" name="track" value="<?= htmlspecialchars($lied['track']) ?>"/>
|
||||
</label>
|
||||
<label>Titel
|
||||
<input type="text" name="titel" value="<?= htmlspecialchars($lied['titel']) ?>"/>
|
||||
</label>
|
||||
<button type="submit" name="aktion" value="speichern">Speichern</button>
|
||||
<button type="submit" name="aktion" value="abbrechen">Abbrechen</button>
|
||||
</form>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
58
Kapitel_6/Lektion_8/mediathek_loesung/lied_loeschen.php
Executable file
58
Kapitel_6/Lektion_8/mediathek_loesung/lied_loeschen.php
Executable file
@ -0,0 +1,58 @@
|
||||
<?php
|
||||
|
||||
require __DIR__ . '/_application.php';
|
||||
|
||||
$meldungen = [];
|
||||
$db = holeDatenbankverbindung();
|
||||
|
||||
if (!isset($_GET['id'])) {
|
||||
$meldungen[] = 'Bitte geben Sie die ID des Liedes an, das Sie löschen möchten.';
|
||||
}
|
||||
|
||||
$lied = holeLied($_GET['id']);
|
||||
if (!$lied) {
|
||||
$meldungen[] = 'Es konnte kein Lied mit der ID ' . htmlspecialchars($_GET['id']) . ' gefunden werden.';
|
||||
}
|
||||
|
||||
if (isset($_POST['aktion'])) {
|
||||
if ($_POST['aktion'] === 'loeschen') {
|
||||
$deleteStatement = $db->prepare("DELETE FROM lieder WHERE id = :lied_id");
|
||||
$deleteStatement->execute(['lied_id' => $_GET['id']]);
|
||||
}
|
||||
|
||||
header('Location: cd.php?id=' . htmlspecialchars($lied['cd_id']));
|
||||
exit;
|
||||
}
|
||||
|
||||
?>
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>Mediathek</title>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<?php if (count($meldungen) > 0): ?>
|
||||
<p>Fehler:</p>
|
||||
<ul>
|
||||
<?php foreach ($meldungen as $meldung): ?>
|
||||
<li><?= htmlspecialchars($meldung) ?></li>
|
||||
<?php endforeach; ?>
|
||||
</ul>
|
||||
<?php else: ?>
|
||||
<form action="lied_loeschen.php?id=<?= htmlspecialchars($_GET['id']) ?>" method="post">
|
||||
<h1>Lied löschen</h1>
|
||||
<h2>'<?= htmlspecialchars($lied['cdname']) ?>' (<?= htmlspecialchars($lied['kuenstlername']) ?>)</h2>
|
||||
|
||||
<p>
|
||||
Möchten Sie Track <?= $lied['track'] ?> '<?= htmlspecialchars($lied['titel']) ?>' löschen?<br>
|
||||
Diese Aktion kann nicht rückgängig gemacht werden.
|
||||
</p>
|
||||
<button type="submit" name="aktion" value="loeschen">Löschen!</button>
|
||||
<button type="submit" name="aktion" value="abbrechen">Abbrechen</button>
|
||||
</form>
|
||||
<?php endif; ?>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
153
Kapitel_6/Lektion_8/mediathek_loesung/mediathek.sql
Executable file
153
Kapitel_6/Lektion_8/mediathek_loesung/mediathek.sql
Executable file
@ -0,0 +1,153 @@
|
||||
-- phpMyAdmin SQL Dump
|
||||
-- version 4.4.10
|
||||
-- http://www.phpmyadmin.net
|
||||
--
|
||||
-- Host: localhost:3306
|
||||
-- Erstellungszeit: 08. Aug 2016 um 18:32
|
||||
-- Server-Version: 5.5.42
|
||||
-- PHP-Version: 7.0.8
|
||||
|
||||
SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
|
||||
SET time_zone = "+00:00";
|
||||
|
||||
|
||||
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
|
||||
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
|
||||
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
|
||||
/*!40101 SET NAMES utf8mb4 */;
|
||||
|
||||
--
|
||||
-- Datenbank: `mediathek`
|
||||
--
|
||||
|
||||
-- --------------------------------------------------------
|
||||
|
||||
--
|
||||
-- Tabellenstruktur für Tabelle `cds`
|
||||
--
|
||||
|
||||
DROP TABLE IF EXISTS `cds`;
|
||||
CREATE TABLE `cds` (
|
||||
`id` int(11) NOT NULL,
|
||||
`kuenstler_id` int(11) NOT NULL,
|
||||
`name` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
|
||||
`erscheinungsjahr` int(11) DEFAULT NULL
|
||||
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
|
||||
|
||||
--
|
||||
-- Daten für Tabelle `cds`
|
||||
--
|
||||
|
||||
INSERT INTO `cds` (`id`, `kuenstler_id`, `name`, `erscheinungsjahr`) VALUES
|
||||
(1, 1, 'Wallflower', 2015),
|
||||
(2, 2, 'Wo der Pfeffer wächst', 2004),
|
||||
(3, 1, 'The Girl In The Other Room', 2004);
|
||||
|
||||
-- --------------------------------------------------------
|
||||
|
||||
--
|
||||
-- Tabellenstruktur für Tabelle `kuenstler`
|
||||
--
|
||||
|
||||
DROP TABLE IF EXISTS `kuenstler`;
|
||||
CREATE TABLE `kuenstler` (
|
||||
`id` int(11) NOT NULL,
|
||||
`name` varchar(32) COLLATE utf8_unicode_ci NOT NULL
|
||||
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
|
||||
|
||||
--
|
||||
-- Daten für Tabelle `kuenstler`
|
||||
--
|
||||
|
||||
INSERT INTO `kuenstler` (`id`, `name`) VALUES
|
||||
(1, 'Diana Krall'),
|
||||
(2, 'Wise Guys');
|
||||
|
||||
-- --------------------------------------------------------
|
||||
|
||||
--
|
||||
-- Tabellenstruktur für Tabelle `lieder`
|
||||
--
|
||||
|
||||
DROP TABLE IF EXISTS `lieder`;
|
||||
CREATE TABLE `lieder` (
|
||||
`id` int(11) NOT NULL,
|
||||
`cd_id` int(11) NOT NULL,
|
||||
`track` int(11) NOT NULL,
|
||||
`titel` varchar(64) COLLATE utf8_unicode_ci NOT NULL
|
||||
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
|
||||
|
||||
--
|
||||
-- Daten für Tabelle `lieder`
|
||||
--
|
||||
|
||||
INSERT INTO `lieder` (`id`, `cd_id`, `track`, `titel`) VALUES
|
||||
(1, 1, 1, 'California Dreamin'''),
|
||||
(2, 1, 2, 'Desperado'),
|
||||
(3, 1, 3, 'Superstar'),
|
||||
(4, 2, 1, 'Wo der Pfeffer wächst'),
|
||||
(5, 2, 2, 'Einer von den Wise Guys'),
|
||||
(6, 3, 1, 'Stop This World');
|
||||
|
||||
--
|
||||
-- Indizes der exportierten Tabellen
|
||||
--
|
||||
|
||||
--
|
||||
-- Indizes für die Tabelle `cds`
|
||||
--
|
||||
ALTER TABLE `cds`
|
||||
ADD PRIMARY KEY (`id`),
|
||||
ADD KEY `kuenstler_id` (`kuenstler_id`);
|
||||
|
||||
--
|
||||
-- Indizes für die Tabelle `kuenstler`
|
||||
--
|
||||
ALTER TABLE `kuenstler`
|
||||
ADD PRIMARY KEY (`id`);
|
||||
|
||||
--
|
||||
-- Indizes für die Tabelle `lieder`
|
||||
--
|
||||
ALTER TABLE `lieder`
|
||||
ADD PRIMARY KEY (`id`),
|
||||
ADD KEY `cd_id` (`cd_id`);
|
||||
|
||||
--
|
||||
-- AUTO_INCREMENT für exportierte Tabellen
|
||||
--
|
||||
|
||||
--
|
||||
-- AUTO_INCREMENT für Tabelle `cds`
|
||||
--
|
||||
ALTER TABLE `cds`
|
||||
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=4;
|
||||
--
|
||||
-- AUTO_INCREMENT für Tabelle `kuenstler`
|
||||
--
|
||||
ALTER TABLE `kuenstler`
|
||||
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=3;
|
||||
--
|
||||
-- AUTO_INCREMENT für Tabelle `lieder`
|
||||
--
|
||||
ALTER TABLE `lieder`
|
||||
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=7;
|
||||
--
|
||||
-- Constraints der exportierten Tabellen
|
||||
--
|
||||
|
||||
--
|
||||
-- Constraints der Tabelle `cds`
|
||||
--
|
||||
ALTER TABLE `cds`
|
||||
ADD CONSTRAINT `cds_ibfk_1` FOREIGN KEY (`kuenstler_id`) REFERENCES `kuenstler` (`id`);
|
||||
|
||||
--
|
||||
-- Constraints der Tabelle `lieder`
|
||||
--
|
||||
ALTER TABLE `lieder`
|
||||
ADD CONSTRAINT `lieder_ibfk_1` FOREIGN KEY (`cd_id`) REFERENCES `cds` (`id`);
|
||||
|
||||
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
|
||||
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
|
||||
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
|
||||
Loading…
Reference in New Issue
Block a user