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PHP

<?php
class Buchung {
private $tabelle = "buchung";
public function lesenAlleDaten() {
$sql = "SELECT buchung.bnummer, kurs.titel AS kursTitel, dozenten.name AS dozentenName, termine.beginn, termine.ende, teilnehmer.name AS teilnehmerName, teilnehmer.vname AS teilnehmerVorname FROM buchung
JOIN termine ON buchung.termnr = termine.termnr
JOIN teilnehmer ON buchung.tnummer = teilnehmer.tnummer
JOIN kurs ON termine.kursnr = kurs.kursnr
JOIN dozenten ON termine.doznr = dozenten.doznr
ORDER BY buchung.bnummer";
$this->baueBuchungTabelle($sql);
}
private function baueBuchungTabelle($sql) {
require("db.inc.php");
if ($stmt = $pdo -> prepare($sql)) {
$stmt -> execute();
echo "<table id=\"zebra\">\n\t";
echo "<thead>
<tr>
<th>Nummer</th><th>Kurs</th><th>Dozent</th><th>Beginn</th><th>Ende</th><th>Name</th><th>Vorname</th><th>Bearbeiten</th>
</tr>
</thead>";
echo "<tbody>\n\t";
$count = 0;
while ($z = $stmt -> fetch()) {
$count += 1;
$zebratyp = "ungerade";
echo "<tr ";
if($count % 2 == 0) {
$zebratyp = "gerade";
}
echo "class=\"" .$zebratyp
."\">\n\t<td>"
. htmlspecialchars($z['bnummer'])
."</td>\n\t<td>"
. htmlspecialchars($z['kursTitel'])
."</td>\n\t<td>"
. htmlspecialchars($z['dozentenName'])
."</td>\n\t<td>"
. htmlspecialchars($z['beginn'])
."</td>\n\t<td>"
. htmlspecialchars($z['ende'])
."</td>\n\t<td>"
. htmlspecialchars($z['teilnehmerName'])
."</td>\n\t<td>"
. htmlspecialchars($z['teilnehmerVorname'])
."</td>\n\t<td>"
."<a href=\"bbearbeiten.php?bnummer="
.htmlspecialchars($z['bnummer'])
."\">bearbeiten</a>"
."</td>\n</tr>";
}
echo "</tbody>\n</table>";
}
}
public function lesenDatensatz($id) {
require("db.inc.php");
$sql = "SELECT buchung.bnummer, termine.termnr, kurs.titel, dozenten.name, termine.beginn, termine.ende, teilnehmer.name, teilnehmer.vname FROM $this->tabelle
JOIN termine ON buchung.termnr = termine.termnr
JOIN teilnehmer ON buchung.tnummer = teilnehmer.tnummer
JOIN kurs ON termine.kursnr = kurs.kursnr
JOIN dozenten ON termine.doznr = dozenten.doznr
WHERE buchung.bnummer=:bnummer";
if($stmt = $pdo->prepare($sql)) {
$stmt->bindParam(':bnummer', $id);
$stmt->execute();
return($stmt->fetch(PDO::FETCH_ASSOC));
} else {
return(false);
}
}
public function einfuegenSelect($tab, $val, $text, $def) {
$s = "<select name =\"" .$val . "\" id= \"" . $val . "\">";
require("db.inc.php");
$sql = "SELECT " .$val . ", " . $text . " FROM " .$tab;
if ($stmt = $pdo->prepare($sql)) {
$stmt->execute();
while ($z = $stmt->fetch()) {
$s = $s . "<option value=\"" . $z[0] . "\"";
if($z[0] == $def) {
$s = $s . " selected";
}
$s = $s . ">" . $z[0] ." | " . $z[1] ."</option>";
}
$s = $s . "</select>";
return $s;
}
else {
return false;
}
}
public function anlegen() {
require("db.inc.php");
$bnummer = NULL;
$termnr = $_POST["termnr"];
$tnummer = $_POST["tnummer"];
$sql= "INSERT INTO .$this->tabelle (bnummer,
termnr,
tnummer)
VALUES (:bnummer, :termnr, :tnummer)";
if($stmt = $pdo->prepare($sql)) {
$param = array(
':bnummer' => $bnummer,
':termnr' => $termnr,
':tnummer' => $tnummer,
);
if($stmt->execute($param)) {
echo "<h2>Datensatz gespeichert</h2>";
} else {
echo "<h2>Fehler beim speichern!</h2>";
}
}
}
public function bearbeiten(){
require("db.inc.php");
$bnummer = $_POST["mode"];
$termnr = $_POST["termnr"];
$tnummer = $_POST["tnummer"];
$sql= "UPDATE " . $this->tabelle . " SET termnr = :termnr, tnummer = :tnummer WHERE bnummer = :bnummer";
if($stmt = $pdo->prepare($sql)) {
$param = array(
':bnummer' => $bnummer,
':termnr' => $termnr,
':tnummer' => $tnummer,
);
if($stmt->execute($param)) {
echo "<h2>Datensatz gespeichert</h2>";
}
else {
echo "<h2>Fehler beim speichern!</h2>";
}
}
}
}
?>