query("SELECT COUNT(*) as anzahl FROM program_id_bits WHERE
position = 0 AND value = '" . $programID[0] . "' AND
position = 1 AND value = '" . $programID[1] . "' AND
position = 2 AND value = '" . $programID[2] . "' AND
position = 3 AND value = '" . $programID[3] . "' AND
position = 4 AND value = '" . $programID[4] . "'
;");
$row = $result->fetchArray(SQLITE3_ASSOC);
$number = $row['anzahl'];
if($number > 0) {
$message[0] = false;
$message[1] = "Diese Programm-ID existiert unter dem aktuell gewählten Stecker bereits. Bitte anderen Namen wählen oder den Stecker wechseln.";
$message = json_encode($message);
print($message);
die();
}
$db->exec(" INSERT INTO programs (plug_id, program_description) VALUES ('" . $plug . "', '" . $programDescription . "'); ");
$program_id = $db->lastInsertRowID();
foreach($bridges as $bridge) {
$db->exec(" INSERT INTO program_bridge_relation (program_id, bridge_id, plug_id) VALUES ('" . $program_id . "', '" . $bridge . "', '" . $plug . "'); ");
}
for($i=0; $i<=4; $i++) {
$db->exec(" INSERT INTO program_id_bits (value, position, program_id) VALUES ('" . $programID[$i] . "', '" . $i . "', '" . $program_id . "'); ");
}
$message[0] = true;
$message[1] = 'Das Programm wurde als
' . $programID[0] . '' . $programID[1] . '' . $programID[2] . '' . $programID[3] . '' . $programID[4] . '
gespeichert!';
$message = json_encode($message);
print($message);
die();
break;
case "edit":
$meta = json_decode(urldecode($meta),true);
$bridges = $meta["bridges"];
$programDescription = $meta["programDescription"];
if(empty($bridges) || empty($programDescription)) {
$message[0] = false;
$message[1] = "Es wurden keine Änderungen gespeichert.";
$message = json_encode($message);
print($message);
die();
}
$db->exec(" UPDATE programs set program_description = '" . $programDescription . "' WHERE id = '" . $programID . "' AND plug_id = '" . $plug . "'; ");
$db->exec(" DELETE FROM program_bridge_relation WHERE program_id = '" . $programID . "' and plug_id = '" . $plug . "'; ");
foreach($bridges as $bridge) {
$db->exec(" INSERT INTO program_bridge_relation (program_id, bridge_id, plug_id) VALUES ('" . $programID . "', '" . $bridge . "', '" . $plug . "'); ");
}
$message[0] = true;
$message[1] = 'Die Änderungen an ';
$program_identifiers = $db->query("SELECT * FROM program_id_bits WHERE program_id = '" . $programID . "';");
while ($program_identifier = $program_identifiers->fetchArray(SQLITE3_ASSOC)) {
$message[1] .= '' . $program_identifier["value"] . '';
}
$message[1] .= '
wurden gespeichert!';
$message = json_encode($message);
print($message);
die();
break;
case "remove":
$programID = $meta;
// Überprüfen, ob die Struktur korrekt ist
if (!isset($meta)) {
$message[0] = false;
$message[1] = "Es gab einen Fehler bei der Datenübermittlung.";
$message = json_encode($message);
print($message);
die();
}
// Hier wichtig! Beim Löschvorgang muss die referenzielle Integrität gewahrt werden! Erst die Fremdschlüssel löschen, dann die Tabelle mit dem Primärschlüssel!
$db->exec(" DELETE FROM program_bridge_relation WHERE program_id = '" . $meta . "' and plug_id = '" . $plug . "'; ");
$db->exec(" DELETE FROM program_id_bits WHERE program_id = '" . $meta . "'; ");
$db->exec(" DELETE FROM programs WHERE id = '" . $meta . "' and plug_id = '" . $plug . "'; ");
$message[0] = true;
$message[1] = "Das Programm wurde nun gelöscht.";
$message = json_encode($message);
print ($message);
die();
break;
}