feat: complete package 2 delete flows and package 3 port management

NEXT_STEPS.md

@@ -9,15 +9,15 @@
 - [x] Validierungsfehler anzeigen
 
 ### Package 2: Delete-Funktionen (1h)
-- [ ] DELETE-Endpoints für alle Module
+- [x] DELETE-Endpoints für alle Module
-- [ ] AJAX-Bestätigung vor Löschen
+- [x] AJAX-Bestätigung vor Löschen
-- [ ] Kaskadierendes Löschen prüfen (z.B. Floor → Racks)
+- [x] Kaskadierendes Löschen prüfen (z.B. Floor → Racks)
 
 ### Package 3: Port-Management (2-3h)
-- [ ] Ports zu Device-Types verwalten
+- [x] Ports zu Device-Types verwalten
-- [ ] Ports zu Devices anzeigen
+- [x] Ports zu Devices anzeigen
-- [ ] Port-Status (aktiv/inaktiv)
+- [x] Port-Status (aktiv/inaktiv)
-- [ ] VLAN-Zuordnung zu Ports
+- [x] VLAN-Zuordnung zu Ports
 
 ### Package 4: SVG-Editor für Floorplans (4-5h)
 - [ ] Interaktiver SVG-Editor für Rooms

app/modules/connections/delete.php

@@ -2,12 +2,19 @@
 /**
  * app/modules/connections/delete.php
  *
- * Loescht eine Verbindung und leitet zur Liste zurueck.
+ * Loescht eine Verbindung (AJAX-POST bevorzugt, GET-Fallback fuer Redirects).
  */
 
-$connectionId = (int)($_GET['id'] ?? $_POST['id'] ?? 0);
+$isPost = ($_SERVER['REQUEST_METHOD'] ?? '') === 'POST';
+$connectionId = (int)($_POST['id'] ?? $_GET['id'] ?? 0);
 
 if ($connectionId <= 0) {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(400);
+        echo json_encode(['success' => false, 'message' => 'Ungueltige Verbindungs-ID']);
+        exit;
+    }
     $_SESSION['error'] = 'Ungueltige Verbindungs-ID';
     header('Location: ?module=connections&action=list');
     exit;
@@ -20,6 +27,12 @@ $connection = $sql->single(
 );
 
 if (!$connection) {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(404);
+        echo json_encode(['success' => false, 'message' => 'Verbindung nicht gefunden']);
+        exit;
+    }
     $_SESSION['error'] = 'Verbindung nicht gefunden';
     header('Location: ?module=connections&action=list');
     exit;
@@ -31,6 +44,17 @@ $rows = $sql->set(
     [$connectionId]
 );
 
+if ($isPost) {
+    header('Content-Type: application/json; charset=utf-8');
+    if ($rows > 0) {
+        echo json_encode(['success' => true, 'message' => 'Verbindung geloescht']);
+    } else {
+        http_response_code(500);
+        echo json_encode(['success' => false, 'message' => 'Verbindung konnte nicht geloescht werden']);
+    }
+    exit;
+}
+
 if ($rows > 0) {
     $_SESSION['success'] = 'Verbindung geloescht';
 } else {

app/modules/connections/list.php

@@ -335,11 +335,12 @@ $buildListUrl = static function (array $extra = []) use ($search, $deviceId): st
                         <a href="<?php echo htmlspecialchars($buildListUrl(['connection_id' => $connId])); ?>" class="button button-small">Details</a>
                         <a href="?module=connections&action=edit&id=<?php echo $connId; ?>" class="button button-small">Bearbeiten</a>
                         <a href="?module=connections&action=swap&id=<?php echo $connId; ?>" class="button button-small" onclick="return confirm('Von/Nach fuer diese Verbindung vertauschen?');">Von/Nach tauschen</a>
-                        <a href="?module=connections&action=delete&id=<?php echo $connId; ?>" class="button button-small button-danger"
+                        <button
-                            data-confirm-delete="true"
+                            type="button"
-                            data-confirm-message="Diese Verbindung wirklich loeschen?">
+                            class="button button-small button-danger js-connection-delete"
+                            data-connection-id="<?php echo $connId; ?>">
                             Loeschen
-                        </a>
+                        </button>
                     </td>
                 </tr>
                 <?php endforeach; ?>
@@ -382,7 +383,12 @@ $buildListUrl = static function (array $extra = []) use ($search, $deviceId): st
                 <div class="sidebar-actions">
                     <a href="?module=connections&action=edit&id=<?php echo $selectedConnId; ?>" class="button button-small">Bearbeiten</a>
                     <a href="?module=connections&action=swap&id=<?php echo $selectedConnId; ?>" class="button button-small" onclick="return confirm('Von/Nach fuer diese Verbindung vertauschen?');">Tauschen</a>
-                    <a href="?module=connections&action=delete&id=<?php echo $selectedConnId; ?>" class="button button-small button-danger" data-confirm-delete="true" data-confirm-message="Diese Verbindung wirklich loeschen?">Loeschen</a>
+                    <button
+                        type="button"
+                        class="button button-small button-danger js-connection-delete"
+                        data-connection-id="<?php echo $selectedConnId; ?>">
+                        Loeschen
+                    </button>
                 </div>
             <?php else: ?>
                 <p><em>Keine Verbindung ausgewaehlt.</em></p>
@@ -474,3 +480,35 @@ $buildListUrl = static function (array $extra = []) use ($search, $deviceId): st
     }
 }
 </style>
+
+<script>
+document.addEventListener('DOMContentLoaded', () => {
+    document.querySelectorAll('.js-connection-delete').forEach((button) => {
+        button.addEventListener('click', () => {
+            const id = Number(button.dataset.connectionId || '0');
+            if (id <= 0) {
+                return;
+            }
+
+            if (!confirm('Diese Verbindung wirklich loeschen?')) {
+                return;
+            }
+
+            fetch('?module=connections&action=delete', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
+                body: 'id=' + encodeURIComponent(id)
+            })
+                .then((response) => response.json())
+                .then((data) => {
+                    if (data && data.success) {
+                        window.location.reload();
+                        return;
+                    }
+                    alert((data && data.message) ? data.message : 'Loeschen fehlgeschlagen');
+                })
+                .catch(() => alert('Loeschen fehlgeschlagen'));
+        });
+    });
+});
+</script>

app/modules/devices/delete.php

@@ -3,12 +3,20 @@
  * app/modules/devices/delete.php
  *
  * Loescht ein Geraet. Bei Abhaengigkeiten ist force=1 erforderlich.
+ * Unterstuetzt GET-Redirects und AJAX-POST.
  */
 
-$deviceId = (int)($_GET['id'] ?? 0);
+$isPost = ($_SERVER['REQUEST_METHOD'] ?? '') === 'POST';
-$forceDelete = (int)($_GET['force'] ?? 0) === 1;
+$deviceId = (int)($_POST['id'] ?? $_GET['id'] ?? 0);
+$forceDelete = (int)($_POST['force'] ?? $_GET['force'] ?? 0) === 1;
 
 if ($deviceId <= 0) {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(400);
+        echo json_encode(['success' => false, 'message' => 'Ungueltige Geraete-ID']);
+        exit;
+    }
     $_SESSION['error'] = "Ungueltige Geraete-ID";
     header('Location: ?module=devices&action=list');
     exit;
@@ -21,6 +29,12 @@ $device = $sql->single(
 );
 
 if (!$device) {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(404);
+        echo json_encode(['success' => false, 'message' => 'Geraet nicht gefunden']);
+        exit;
+    }
     $_SESSION['error'] = "Geraet nicht gefunden";
     header('Location: ?module=devices&action=list');
     exit;
@@ -70,7 +84,23 @@ if ($hasDependencies && !$forceDelete) {
         $parts[] = $moduleCount . ' Port-Module';
     }
 
-    $_SESSION['error'] = "Geraet hat abhaengige Daten (" . implode(', ', $parts) . "). Loeschen bitte bestaetigen.";
+    $dependencyMessage = "Geraet hat abhaengige Daten (" . implode(', ', $parts) . "). Loeschen bitte bestaetigen.";
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(409);
+        echo json_encode([
+            'success' => false,
+            'requires_force' => true,
+            'message' => $dependencyMessage,
+            'dependencies' => [
+                'connections' => $connectionCount,
+                'ports' => $portCount,
+                'modules' => $moduleCount
+            ]
+        ]);
+        exit;
+    }
+    $_SESSION['error'] = $dependencyMessage;
     header('Location: ?module=devices&action=edit&id=' . urlencode((string)$deviceId));
     exit;
 }
@@ -91,8 +121,19 @@ $deleted = $sql->set(
 );
 
 if ($deleted > 0) {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        echo json_encode(['success' => true, 'message' => "Geraet geloescht: " . $device['name']]);
+        exit;
+    }
     $_SESSION['success'] = "Geraet geloescht: " . $device['name'];
 } else {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(500);
+        echo json_encode(['success' => false, 'message' => 'Geraet konnte nicht geloescht werden']);
+        exit;
+    }
     $_SESSION['error'] = "Geraet konnte nicht geloescht werden";
 }
 

app/modules/devices/edit.php

@@ -64,6 +64,19 @@ if ($isEdit) {
 // =========================
 $deviceTypes = $sql->get("SELECT id, name, category FROM device_types ORDER BY name", "", []);
 $racks = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
+$devicePorts = [];
+
+if ($isEdit) {
+    $devicePorts = $sql->get(
+        "SELECT dp.id, dp.name, dp.status, dp.mode, dp.vlan_config, pt.name AS port_type_name
+         FROM device_ports dp
+         LEFT JOIN port_types pt ON pt.id = dp.port_type_id
+         WHERE dp.device_id = ?
+         ORDER BY dp.id",
+        "i",
+        [$deviceId]
+    );
+}
 
 ?>
 
@@ -160,6 +173,67 @@ $racks = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
             </div>
         </fieldset>
 
+        <fieldset>
+            <legend>Ports</legend>
+            <?php if ($isEdit): ?>
+                <?php if (!empty($devicePorts)): ?>
+                    <p><small>Portstatus und VLAN-Zuordnung koennen hier direkt gepflegt werden (VLANs kommagetrennt, z. B. 10,20,30).</small></p>
+                    <table class="device-port-table">
+                        <thead>
+                            <tr>
+                                <th>Name</th>
+                                <th>Port-Typ</th>
+                                <th>Status</th>
+                                <th>Modus</th>
+                                <th>VLANs</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <?php foreach ($devicePorts as $port): ?>
+                                <?php
+                                    $vlanValue = '';
+                                    if (!empty($port['vlan_config'])) {
+                                        $decodedVlans = json_decode((string)$port['vlan_config'], true);
+                                        if (is_array($decodedVlans)) {
+                                            $vlanValue = implode(', ', array_map('strval', $decodedVlans));
+                                        } else {
+                                            $vlanValue = (string)$port['vlan_config'];
+                                        }
+                                    }
+                                    $statusValue = (string)($port['status'] ?? 'active');
+                                    if (!in_array($statusValue, ['active', 'disabled'], true)) {
+                                        $statusValue = 'active';
+                                    }
+                                ?>
+                                <tr>
+                                    <td>
+                                        <input type="text" name="device_ports[<?php echo (int)$port['id']; ?>][name]" value="<?php echo htmlspecialchars((string)$port['name']); ?>">
+                                    </td>
+                                    <td><?php echo htmlspecialchars((string)($port['port_type_name'] ?? '-')); ?></td>
+                                    <td>
+                                        <select name="device_ports[<?php echo (int)$port['id']; ?>][status]">
+                                            <option value="active" <?php echo $statusValue === 'active' ? 'selected' : ''; ?>>aktiv</option>
+                                            <option value="disabled" <?php echo $statusValue === 'disabled' ? 'selected' : ''; ?>>inaktiv</option>
+                                        </select>
+                                    </td>
+                                    <td>
+                                        <input type="text" name="device_ports[<?php echo (int)$port['id']; ?>][mode]" value="<?php echo htmlspecialchars((string)($port['mode'] ?? '')); ?>" placeholder="z. B. access/trunk">
+                                    </td>
+                                    <td>
+                                        <input type="text" name="device_ports[<?php echo (int)$port['id']; ?>][vlan_config]" value="<?php echo htmlspecialchars($vlanValue); ?>" placeholder="10,20,30">
+                                    </td>
+                                </tr>
+                            <?php endforeach; ?>
+                        </tbody>
+                    </table>
+                <?php else: ?>
+                    <p><small>Zu diesem Geraet sind aktuell keine Ports vorhanden.</small></p>
+                <?php endif; ?>
+            <?php else: ?>
+                <p><small>Ports werden nach dem ersten Speichern automatisch aus dem Geraetetyp erzeugt und koennen dann hier gepflegt werden.</small></p>
+            <?php endif; ?>
+        </fieldset>
+
         <!-- =========================
              Aktionen
              ========================= -->
@@ -264,34 +338,64 @@ $racks = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
 .button:hover {
     opacity: 0.8;
 }
+
+.device-port-table {
+    width: 100%;
+    border-collapse: collapse;
+    margin-top: 10px;
+}
+
+.device-port-table th,
+.device-port-table td {
+    border-bottom: 1px solid #ddd;
+    padding: 8px;
+    text-align: left;
+}
+
+.device-port-table input,
+.device-port-table select {
+    width: 100%;
+    min-width: 120px;
+}
 </style>
 
 <script>
 function confirmDelete(link, id, connectionCount, portCount, moduleCount) {
-    if (confirm('Dieses Gerät wirklich löschen?')) {
+    if (!confirm('Dieses Geraet wirklich loeschen?')) {
-        const hasDependencies = (connectionCount > 0) || (portCount > 0) || (moduleCount > 0);
-        if (hasDependencies) {
-            const details = [];
-            if (connectionCount > 0) {
-                details.push(connectionCount + ' Verbindungen');
-            }
-            if (portCount > 0) {
-                details.push(portCount + ' Ports');
-            }
-            if (moduleCount > 0) {
-                details.push(moduleCount + ' Port-Module');
-            }
-            const dependencyMessage = 'Es gibt abhängige Daten (' + details.join(', ') + '). Diese auch löschen?';
-            if (!confirm(dependencyMessage)) {
-                return false;
-            }
-            window.location.href = (link && link.href ? link.href : ('?module=devices&action=delete&id=' + encodeURIComponent(id))) + '&force=1';
         return false;
     }
 
-        return true;
+    const requestDelete = (forceDelete) => {
+        const body = ['id=' + encodeURIComponent(id)];
+        if (forceDelete) {
+            body.push('force=1');
         }
 
+        fetch('?module=devices&action=delete', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
+            body: body.join('&')
+        })
+            .then((response) => response.json())
+            .then((data) => {
+                if (data && data.success) {
+                    window.location.href = '?module=devices&action=list';
+                    return;
+                }
+
+                if (data && data.requires_force) {
+                    if (confirm(data.message || 'Es gibt abhaengige Daten. Trotzdem loeschen?')) {
+                        requestDelete(true);
+                    }
+                    return;
+                }
+
+                alert((data && data.message) ? data.message : 'Loeschen fehlgeschlagen');
+            })
+            .catch(() => alert('Loeschen fehlgeschlagen'));
+    };
+
+    requestDelete(false);
     return false;
 }
 </script>

app/modules/devices/list.php

@@ -1,7 +1,7 @@
 <?php
 /**
  * modules/devices/list.php
- * Vollständige Geräteübersicht mit Filter
+ * Vollstaendige Geraeteuebersicht mit Filter
  */
 
 // =========================
@@ -22,34 +22,34 @@ $params  = [];
 
 if ($search !== '') {
     $where[] = "(d.name LIKE ? OR d.serial_number LIKE ? OR dt.name LIKE ?)";
-    $types  .= "sss";
+    $types  .= 'sss';
     $params[] = "%$search%";
     $params[] = "%$search%";
     $params[] = "%$search%";
 }
 
 if ($typeId > 0) {
-    $where[] = "d.device_type_id = ?";
+    $where[] = 'd.device_type_id = ?';
-    $types  .= "i";
+    $types  .= 'i';
     $params[] = $typeId;
 }
 
 if ($floorId > 0) {
-    $where[] = "f.id = ?";
+    $where[] = 'f.id = ?';
-    $types  .= "i";
+    $types  .= 'i';
     $params[] = $floorId;
 }
 
 if ($rackId > 0) {
-    $where[] = "d.rack_id = ?";
+    $where[] = 'd.rack_id = ?';
-    $types  .= "i";
+    $types  .= 'i';
     $params[] = $rackId;
 }
 
 $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';
 
 // =========================
-// Geräte laden
+// Geraete laden
 // =========================
 $devices = $sql->get(
     "
@@ -69,6 +69,25 @@ $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';
             FROM device_ports dp
             WHERE dp.device_id = d.id
         ) AS port_count,
+        (
+            SELECT COUNT(*)
+            FROM device_ports dp
+            WHERE dp.device_id = d.id
+              AND dp.status = 'active'
+        ) AS active_port_count,
+        (
+            SELECT COUNT(*)
+            FROM device_ports dp
+            WHERE dp.device_id = d.id
+              AND dp.status = 'disabled'
+        ) AS disabled_port_count,
+        (
+            SELECT COUNT(*)
+            FROM device_ports dp
+            WHERE dp.device_id = d.id
+              AND dp.vlan_config IS NOT NULL
+              AND dp.vlan_config <> '[]'
+        ) AS vlan_port_count,
         (
             SELECT COUNT(*)
             FROM device_port_modules dpm
@@ -99,22 +118,19 @@ $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';
 // =========================
 // Filter-Daten laden
 // =========================
-$deviceTypes = $sql->get("SELECT id, name FROM device_types ORDER BY name", "", []);
+$deviceTypes = $sql->get('SELECT id, name FROM device_types ORDER BY name', '', []);
-$floors      = $sql->get("SELECT id, name FROM floors ORDER BY name", "", []);
+$floors      = $sql->get('SELECT id, name FROM floors ORDER BY name', '', []);
-$racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
+$racks       = $sql->get('SELECT id, name FROM racks ORDER BY name', '', []);
 ?>
 
 <div class="devices-container">
-    <h1>Geräte</h1>
+    <h1>Geraete</h1>
 
-    <!-- =========================
-         Filter-Toolbar
-         ========================= -->
     <form method="get" class="filter-form">
         <input type="hidden" name="module" value="devices">
         <input type="hidden" name="action" value="list">
 
-        <input type="text" name="search" placeholder="Suche nach Name oder Seriennummer…"
+        <input type="text" name="search" placeholder="Suche nach Name oder Seriennummer..."
             value="<?php echo htmlspecialchars($search); ?>" class="search-input">
 
         <select name="type_id">
@@ -149,16 +165,13 @@ $racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
         <a href="?module=devices&action=list" class="button">Reset</a>
 
         <a href="?module=devices&action=edit" class="button button-primary" style="margin-left: auto;">
-            + Neues Gerät
+            + Neues Geraet
         </a>
     </form>
 
-    <!-- =========================
-         Geräte-Liste
-         ========================= -->
     <?php if (!empty($devices)): ?>
     <div class="device-stats">
-        <p>Gefundene Geräte: <strong><?php echo count($devices); ?></strong></p>
+        <p>Gefundene Geraete: <strong><?php echo count($devices); ?></strong></p>
     </div>
 
     <table class="device-list">
@@ -169,6 +182,7 @@ $racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
                 <th>Stockwerk</th>
                 <th>Rack</th>
                 <th>Position (HE)</th>
+                <th>Ports</th>
                 <th>Seriennummer</th>
                 <th>Webconfig</th>
                 <th>Aktionen</th>
@@ -186,28 +200,37 @@ $racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
                 </td>
 
                 <td>
-                    <?php echo htmlspecialchars($d['floor_name'] ?? '—'); ?>
+                    <?php echo htmlspecialchars($d['floor_name'] ?? '-'); ?>
                 </td>
 
                 <td>
-                    <?php echo htmlspecialchars($d['rack_name'] ?? '—'); ?>
+                    <?php echo htmlspecialchars($d['rack_name'] ?? '-'); ?>
                 </td>
 
                 <td>
                     <?php
                         if ($d['rack_position_he']) {
-                            echo $d['rack_position_he'];
+                            echo (int)$d['rack_position_he'];
                             if ($d['rack_height_he']) {
-                                echo "–" . ($d['rack_position_he'] + $d['rack_height_he'] - 1);
+                                echo '-' . ((int)$d['rack_position_he'] + (int)$d['rack_height_he'] - 1);
                             }
                         } else {
-                            echo "—";
+                            echo '-';
                         }
                     ?>
                 </td>
 
                 <td>
-                    <small><?php echo htmlspecialchars($d['serial_number'] ?? '—'); ?></small>
+                    <small>
+                        <?php echo (int)$d['port_count']; ?> gesamt<br>
+                        <?php echo (int)$d['active_port_count']; ?> aktiv /
+                        <?php echo (int)$d['disabled_port_count']; ?> inaktiv<br>
+                        VLAN gesetzt: <?php echo (int)$d['vlan_port_count']; ?>
+                    </small>
+                </td>
+
+                <td>
+                    <small><?php echo htmlspecialchars($d['serial_number'] ?? '-'); ?></small>
                 </td>
 
                 <td>
@@ -216,13 +239,13 @@ $racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
                             Webconfig
                         </a>
                     <?php else: ?>
-                        —
+                        -
                     <?php endif; ?>
                 </td>
 
                 <td class="actions">
                     <a href="?module=devices&action=edit&id=<?php echo $d['id']; ?>" class="button button-small">Bearbeiten</a>
-                    <a href="?module=devices&action=delete&id=<?php echo (int)$d['id']; ?>" class="button button-small button-danger" onclick="return confirmDelete(this, <?php echo (int)$d['id']; ?>, <?php echo (int)$d['connection_count']; ?>, <?php echo (int)$d['port_count']; ?>, <?php echo (int)$d['module_count']; ?>)">Löschen</a>
+                    <a href="?module=devices&action=delete&id=<?php echo (int)$d['id']; ?>" class="button button-small button-danger" onclick="return confirmDelete(this, <?php echo (int)$d['id']; ?>, <?php echo (int)$d['connection_count']; ?>, <?php echo (int)$d['port_count']; ?>, <?php echo (int)$d['module_count']; ?>)">Loeschen</a>
                 </td>
             </tr>
             <?php endforeach; ?>
@@ -231,10 +254,10 @@ $racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
 
     <?php else: ?>
     <div class="empty-state">
-        <p>Keine Geräte gefunden.</p>
+        <p>Keine Geraete gefunden.</p>
         <p>
             <a href="?module=devices&action=edit" class="button button-primary">
-                Erstes Gerät anlegen
+                Erstes Geraet anlegen
             </a>
         </p>
     </div>
@@ -351,33 +374,41 @@ $racks       = $sql->get("SELECT id, name FROM racks ORDER BY name", "", []);
 
 <script>
 function confirmDelete(link, id, connectionCount, portCount, moduleCount) {
-    if (confirm('Dieses Gerät wirklich löschen?')) {
+    if (!confirm('Dieses Geraet wirklich loeschen?')) {
-        const hasDependencies = (connectionCount > 0) || (portCount > 0) || (moduleCount > 0);
-        if (hasDependencies) {
-            const details = [];
-            if (connectionCount > 0) {
-                details.push(connectionCount + ' Verbindungen');
-            }
-            if (portCount > 0) {
-                details.push(portCount + ' Ports');
-            }
-            if (moduleCount > 0) {
-                details.push(moduleCount + ' Port-Module');
-            }
-            const dependencyMessage = 'Es gibt abhängige Daten (' + details.join(', ') + '). Diese auch löschen?';
-            if (!confirm(dependencyMessage)) {
-                return false;
-            }
-            window.location.href = (link && link.href ? link.href : ('?module=devices&action=delete&id=' + encodeURIComponent(id))) + '&force=1';
         return false;
     }
 
-        return true;
+    const requestDelete = (forceDelete) => {
+        const body = ['id=' + encodeURIComponent(id)];
+        if (forceDelete) {
+            body.push('force=1');
         }
 
+        fetch('?module=devices&action=delete', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
+            body: body.join('&')
+        })
+            .then((response) => response.json())
+            .then((data) => {
+                if (data && data.success) {
+                    window.location.reload();
+                    return;
+                }
+
+                if (data && data.requires_force) {
+                    if (confirm(data.message || 'Es gibt abhaengige Daten. Trotzdem loeschen?')) {
+                        requestDelete(true);
+                    }
+                    return;
+                }
+
+                alert((data && data.message) ? data.message : 'Loeschen fehlgeschlagen');
+            })
+            .catch(() => alert('Loeschen fehlgeschlagen'));
+    };
+
+    requestDelete(false);
     return false;
 }
 </script>
-
-
-

app/modules/devices/save.php

@@ -25,6 +25,7 @@ $rackHeightHe = (int)($_POST['rack_height_he'] ?? 1);
 $serialNumber = trim($_POST['serial_number'] ?? '');
 $comment = trim($_POST['comment'] ?? '');
 $webConfigUrl = trim($_POST['web_config_url'] ?? '');
+$devicePortRows = is_array($_POST['device_ports'] ?? null) ? $_POST['device_ports'] : [];
 if ($webConfigUrl === '') {
     $webConfigUrl = null;
 }
@@ -88,6 +89,9 @@ if ($isNewDevice) {
 if ($isNewDevice && $deviceId > 0) {
     copyDevicePortsFromType($sql, $deviceId, $deviceTypeId);
 }
+if ($deviceId > 0 && !$isNewDevice && !empty($devicePortRows)) {
+    syncDevicePorts($sql, $deviceId, $devicePortRows);
+}
 
 $_SESSION['success'] = "Gerät gespeichert";
 
@@ -139,3 +143,105 @@ function copyDevicePortsFromType($sql, $deviceId, $deviceTypeId)
         }
     }
 }
+
+function syncDevicePorts($sql, $deviceId, array $rows)
+{
+    $ports = $sql->get(
+        "SELECT id, name FROM device_ports WHERE device_id = ?",
+        "i",
+        [$deviceId]
+    );
+    if (empty($ports)) {
+        return;
+    }
+
+    $allowedIds = [];
+    $currentNames = [];
+    foreach ($ports as $port) {
+        $portId = (int)($port['id'] ?? 0);
+        if ($portId <= 0) {
+            continue;
+        }
+        $allowedIds[$portId] = true;
+        $currentNames[$portId] = (string)($port['name'] ?? '');
+    }
+
+    foreach ($rows as $portIdRaw => $row) {
+        $portId = (int)$portIdRaw;
+        if ($portId <= 0 || !isset($allowedIds[$portId]) || !is_array($row)) {
+            continue;
+        }
+
+        $name = trim((string)($row['name'] ?? ''));
+        if ($name === '') {
+            $name = $currentNames[$portId] ?? ('Port ' . $portId);
+        }
+
+        $status = trim((string)($row['status'] ?? 'active'));
+        if (!in_array($status, ['active', 'disabled'], true)) {
+            $status = 'active';
+        }
+
+        $mode = trim((string)($row['mode'] ?? ''));
+        $mode = $mode !== '' ? $mode : null;
+        $vlanJson = normalizeVlanConfig($row['vlan_config'] ?? '');
+
+        if ($mode !== null && $vlanJson !== null) {
+            $sql->set(
+                "UPDATE device_ports
+                 SET name = ?, status = ?, mode = ?, vlan_config = ?
+                 WHERE id = ? AND device_id = ?",
+                "ssssii",
+                [$name, $status, $mode, $vlanJson, $portId, $deviceId]
+            );
+        } elseif ($mode !== null) {
+            $sql->set(
+                "UPDATE device_ports
+                 SET name = ?, status = ?, mode = ?, vlan_config = NULL
+                 WHERE id = ? AND device_id = ?",
+                "sssii",
+                [$name, $status, $mode, $portId, $deviceId]
+            );
+        } elseif ($vlanJson !== null) {
+            $sql->set(
+                "UPDATE device_ports
+                 SET name = ?, status = ?, mode = NULL, vlan_config = ?
+                 WHERE id = ? AND device_id = ?",
+                "sssii",
+                [$name, $status, $vlanJson, $portId, $deviceId]
+            );
+        } else {
+            $sql->set(
+                "UPDATE device_ports
+                 SET name = ?, status = ?, mode = NULL, vlan_config = NULL
+                 WHERE id = ? AND device_id = ?",
+                "ssii",
+                [$name, $status, $portId, $deviceId]
+            );
+        }
+    }
+}
+
+function normalizeVlanConfig($raw)
+{
+    $value = trim((string)$raw);
+    if ($value === '') {
+        return null;
+    }
+
+    $parts = preg_split('/[\s,;]+/', $value);
+    $normalized = [];
+    foreach ((array)$parts as $part) {
+        $entry = trim((string)$part);
+        if ($entry === '') {
+            continue;
+        }
+        $normalized[$entry] = true;
+    }
+
+    if (empty($normalized)) {
+        return null;
+    }
+
+    return json_encode(array_keys($normalized), JSON_UNESCAPED_UNICODE);
+}

app/modules/floor_infrastructure/delete.php

@@ -2,30 +2,48 @@
 /**
  * app/modules/floor_infrastructure/delete.php
  *
- * Loescht Patchpanels oder Wandbuchsen.
+ * Loescht Patchpanels oder Wandbuchsen (AJAX-POST bevorzugt).
  */
 
-$type = strtolower(trim((string)($_GET['type'] ?? '')));
+$isPost = ($_SERVER['REQUEST_METHOD'] ?? '') === 'POST';
-$id = (int)($_GET['id'] ?? 0);
+$type = strtolower(trim((string)($_POST['type'] ?? $_GET['type'] ?? '')));
+$id = (int)($_POST['id'] ?? $_GET['id'] ?? 0);
 
 if ($id <= 0 || !in_array($type, ['patchpanel', 'outlet'], true)) {
+    if ($isPost) {
+        header('Content-Type: application/json; charset=utf-8');
+        http_response_code(400);
+        echo json_encode(['success' => false, 'message' => 'Ungueltige Anfrage']);
+        exit;
+    }
     header('Location: ?module=floor_infrastructure&action=list');
     exit;
 }
 
 if ($type === 'patchpanel') {
-    $sql->set(
+    $rows = $sql->set(
         "DELETE FROM floor_patchpanels WHERE id = ?",
         "i",
         [$id]
     );
 } else {
-    $sql->set(
+    $rows = $sql->set(
         "DELETE FROM network_outlets WHERE id = ?",
         "i",
         [$id]
     );
 }
 
+if ($isPost) {
+    header('Content-Type: application/json; charset=utf-8');
+    if ($rows > 0) {
+        echo json_encode(['success' => true, 'message' => 'Infrastrukturobjekt geloescht']);
+    } else {
+        http_response_code(404);
+        echo json_encode(['success' => false, 'message' => 'Infrastrukturobjekt nicht gefunden oder bereits geloescht']);
+    }
+    exit;
+}
+
 header('Location: ?module=floor_infrastructure&action=list');
 exit;

app/modules/floor_infrastructure/list.php

@@ -180,7 +180,14 @@ if ($editorFloor) {
                             <td><?php echo (int)$panel['port_count']; ?></td>
                             <td class="actions">
                                 <a href="?module=floor_infrastructure&action=edit&type=patchpanel&id=<?php echo (int)$panel['id']; ?>" class="button button-small">Bearbeiten</a>
-                                <a href="?module=floor_infrastructure&action=delete&type=patchpanel&id=<?php echo (int)$panel['id']; ?>" class="button button-small button-danger" onclick="return confirm('Patchpanel wirklich loeschen?');">Loeschen</a>
+                                <button
+                                    type="button"
+                                    class="button button-small button-danger js-floor-infra-delete"
+                                    data-delete-id="<?php echo (int)$panel['id']; ?>"
+                                    data-delete-type="patchpanel"
+                                    data-delete-label="<?php echo htmlspecialchars((string)$panel['name'], ENT_QUOTES, 'UTF-8'); ?>">
+                                    Loeschen
+                                </button>
                             </td>
                         </tr>
                     <?php endforeach; ?>
@@ -226,7 +233,14 @@ if ($editorFloor) {
                             <td><?php echo htmlspecialchars((string)($outlet['comment'] ?? '')); ?></td>
                             <td class="actions">
                                 <a href="?module=floor_infrastructure&action=edit&type=outlet&id=<?php echo (int)$outlet['id']; ?>" class="button button-small">Bearbeiten</a>
-                                <a href="?module=floor_infrastructure&action=delete&type=outlet&id=<?php echo (int)$outlet['id']; ?>" class="button button-small button-danger" onclick="return confirm('Wandbuchse wirklich loeschen?');">Loeschen</a>
+                                <button
+                                    type="button"
+                                    class="button button-small button-danger js-floor-infra-delete"
+                                    data-delete-id="<?php echo (int)$outlet['id']; ?>"
+                                    data-delete-type="outlet"
+                                    data-delete-label="<?php echo htmlspecialchars((string)$outlet['name'], ENT_QUOTES, 'UTF-8'); ?>">
+                                    Loeschen
+                                </button>
                             </td>
                         </tr>
                     <?php endforeach; ?>
@@ -237,3 +251,38 @@ if ($editorFloor) {
         <?php endif; ?>
     </section>
 </div>
+
+<script>
+document.addEventListener('DOMContentLoaded', () => {
+    document.querySelectorAll('.js-floor-infra-delete').forEach((button) => {
+        button.addEventListener('click', () => {
+            const id = Number(button.dataset.deleteId || '0');
+            const type = (button.dataset.deleteType || '').trim();
+            const label = button.dataset.deleteLabel || 'Objekt';
+            if (id <= 0 || (type !== 'patchpanel' && type !== 'outlet')) {
+                return;
+            }
+
+            const entityLabel = type === 'patchpanel' ? 'Patchpanel' : 'Wandbuchse';
+            if (!confirm(entityLabel + ' "' + label + '" wirklich loeschen?')) {
+                return;
+            }
+
+            fetch('?module=floor_infrastructure&action=delete', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
+                body: 'id=' + encodeURIComponent(id) + '&type=' + encodeURIComponent(type)
+            })
+                .then((response) => response.json())
+                .then((data) => {
+                    if (data && data.success) {
+                        window.location.reload();
+                        return;
+                    }
+                    alert((data && data.message) ? data.message : 'Loeschen fehlgeschlagen');
+                })
+                .catch(() => alert('Loeschen fehlgeschlagen'));
+        });
+    });
+});
+</script>

app/modules/floors/delete.php

@@ -25,6 +25,47 @@ if (!$exists) {
     exit;
 }
 
+$forceDelete = (int)($_POST['force'] ?? $_GET['force'] ?? 0) === 1;
+$dependencyCounts = $sql->single(
+    "SELECT
+        (SELECT COUNT(*) FROM rooms WHERE floor_id = ?) AS room_count,
+        (SELECT COUNT(*) FROM racks WHERE floor_id = ?) AS rack_count,
+        (SELECT COUNT(*) FROM floor_patchpanels WHERE floor_id = ?) AS patchpanel_count",
+    "iii",
+    [$id, $id, $id]
+);
+
+$roomCount = (int)($dependencyCounts['room_count'] ?? 0);
+$rackCount = (int)($dependencyCounts['rack_count'] ?? 0);
+$patchpanelCount = (int)($dependencyCounts['patchpanel_count'] ?? 0);
+$hasDependencies = $roomCount > 0 || $rackCount > 0 || $patchpanelCount > 0;
+
+if ($hasDependencies && !$forceDelete) {
+    $parts = [];
+    if ($roomCount > 0) {
+        $parts[] = $roomCount . ' Raeume';
+    }
+    if ($rackCount > 0) {
+        $parts[] = $rackCount . ' Racks';
+    }
+    if ($patchpanelCount > 0) {
+        $parts[] = $patchpanelCount . ' Patchpanels';
+    }
+
+    http_response_code(409);
+    echo json_encode([
+        'success' => false,
+        'requires_force' => true,
+        'message' => 'Beim Loeschen werden abhaengige Daten entfernt (' . implode(', ', $parts) . '). Fortfahren?',
+        'dependencies' => [
+            'rooms' => $roomCount,
+            'racks' => $rackCount,
+            'patchpanels' => $patchpanelCount
+        ]
+    ]);
+    exit;
+}
+
 $rows = $sql->set("DELETE FROM floors WHERE id = ?", "i", [$id]);
 if ($rows === false) {
     http_response_code(500);
@@ -32,5 +73,13 @@ if ($rows === false) {
     exit;
 }
 
-echo json_encode(['success' => true, 'message' => 'Stockwerk geloescht']);
+echo json_encode([
+    'success' => true,
+    'message' => 'Stockwerk geloescht',
+    'dependencies' => [
+        'rooms' => $roomCount,
+        'racks' => $rackCount,
+        'patchpanels' => $patchpanelCount
+    ]
+]);
 

app/modules/floors/list.php

@@ -233,11 +233,20 @@ $buildings = $sql->get("SELECT id, name FROM buildings ORDER BY name", "", []);
 
 <script>
 function confirmDelete(id) {
-    if (confirm('Dieses Stockwerk wirklich loeschen? Alle Raeume und Racks werden geloescht.')) {
+    if (!confirm('Dieses Stockwerk wirklich loeschen?')) {
+        return;
+    }
+
+    const requestDelete = (forceDelete) => {
+        const body = ['id=' + encodeURIComponent(id)];
+        if (forceDelete) {
+            body.push('force=1');
+        }
+
         fetch('?module=floors&action=delete', {
             method: 'POST',
             headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
-            body: 'id=' + encodeURIComponent(id)
+            body: body.join('&')
         })
             .then((res) => res.json())
             .then((data) => {
@@ -245,12 +254,22 @@ function confirmDelete(id) {
                     window.location.reload();
                     return;
                 }
+
+                if (data && data.requires_force) {
+                    if (confirm(data.message || 'Abhaengige Daten ebenfalls loeschen?')) {
+                        requestDelete(true);
+                    }
+                    return;
+                }
+
                 alert((data && data.message) ? data.message : 'Loeschen fehlgeschlagen');
             })
             .catch(() => {
                 alert('Loeschen fehlgeschlagen');
             });
-    }
+    };
+
+    requestDelete(false);
 }
 </script>
 

app/modules/locations/delete.php

@@ -7,6 +7,16 @@
 
 header('Content-Type: application/json; charset=utf-8');
 
+$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
+if ($method !== 'POST') {
+    http_response_code(405);
+    echo json_encode([
+        'success' => false,
+        'message' => 'Methode nicht erlaubt'
+    ]);
+    exit;
+}
+
 $locationId = (int)($_POST['id'] ?? $_GET['id'] ?? 0);
 
 if ($locationId <= 0) {

app/modules/port_types/delete.php

@@ -0,0 +1,84 @@
+<?php
+/**
+ * app/modules/port_types/delete.php
+ *
+ * Loescht einen Porttyp per AJAX (POST).
+ */
+
+header('Content-Type: application/json; charset=utf-8');
+
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405);
+    echo json_encode(['success' => false, 'message' => 'Methode nicht erlaubt']);
+    exit;
+}
+
+$portTypeId = (int)($_POST['id'] ?? 0);
+if ($portTypeId <= 0) {
+    http_response_code(400);
+    echo json_encode(['success' => false, 'message' => 'Ungueltige Porttyp-ID']);
+    exit;
+}
+
+$portType = $sql->single(
+    "SELECT id, name FROM port_types WHERE id = ?",
+    "i",
+    [$portTypeId]
+);
+
+if (!$portType) {
+    http_response_code(404);
+    echo json_encode(['success' => false, 'message' => 'Porttyp nicht gefunden']);
+    exit;
+}
+
+$usage = $sql->single(
+    "SELECT
+        (SELECT COUNT(*) FROM device_type_ports WHERE port_type_id = ?) AS device_type_ports_count,
+        (SELECT COUNT(*) FROM device_ports WHERE port_type_id = ?) AS device_ports_count,
+        (SELECT COUNT(*) FROM module_ports WHERE port_type_id = ?) AS module_ports_count,
+        (SELECT COUNT(*) FROM network_outlet_ports WHERE port_type_id = ?) AS outlet_ports_count,
+        (SELECT COUNT(*) FROM floor_patchpanel_ports WHERE port_type_id = ?) AS patchpanel_ports_count",
+    "iiiii",
+    [$portTypeId, $portTypeId, $portTypeId, $portTypeId, $portTypeId]
+);
+
+$references = [
+    'Geraetetyp-Ports' => (int)($usage['device_type_ports_count'] ?? 0),
+    'Geraete-Ports' => (int)($usage['device_ports_count'] ?? 0),
+    'Modul-Ports' => (int)($usage['module_ports_count'] ?? 0),
+    'Netzwerkdosen-Ports' => (int)($usage['outlet_ports_count'] ?? 0),
+    'Patchpanel-Ports' => (int)($usage['patchpanel_ports_count'] ?? 0),
+];
+
+$inUse = array_filter($references, static fn ($count) => $count > 0);
+if (!empty($inUse)) {
+    $parts = [];
+    foreach ($inUse as $label => $count) {
+        $parts[] = $label . ': ' . $count;
+    }
+    http_response_code(409);
+    echo json_encode([
+        'success' => false,
+        'message' => 'Porttyp wird noch verwendet (' . implode(', ', $parts) . ')'
+    ]);
+    exit;
+}
+
+$deleted = $sql->set(
+    "DELETE FROM port_types WHERE id = ?",
+    "i",
+    [$portTypeId]
+);
+
+if ($deleted <= 0) {
+    http_response_code(500);
+    echo json_encode(['success' => false, 'message' => 'Porttyp konnte nicht geloescht werden']);
+    exit;
+}
+
+echo json_encode([
+    'success' => true,
+    'message' => 'Porttyp geloescht: ' . (string)$portType['name']
+]);
+exit;

app/modules/port_types/list.php

@@ -69,6 +69,13 @@ $portTypes = $sql->get(
                 <td><small><?php echo htmlspecialchars($pt['comment'] ?? ''); ?></small></td>
                 <td class="actions">
                     <a href="?module=port_types&action=edit&id=<?php echo (int)$pt['id']; ?>" class="button button-small">Bearbeiten</a>
+                    <button
+                        type="button"
+                        class="button button-small button-danger js-port-type-delete"
+                        data-port-type-id="<?php echo (int)$pt['id']; ?>"
+                        data-port-type-name="<?php echo htmlspecialchars((string)$pt['name'], ENT_QUOTES, 'UTF-8'); ?>">
+                        Loeschen
+                    </button>
                 </td>
             </tr>
             <?php endforeach; ?>
@@ -171,3 +178,36 @@ $portTypes = $sql->get(
     white-space: nowrap;
 }
 </style>
+
+<script>
+document.addEventListener('DOMContentLoaded', () => {
+    document.querySelectorAll('.js-port-type-delete').forEach((button) => {
+        button.addEventListener('click', () => {
+            const id = Number(button.dataset.portTypeId || '0');
+            const name = button.dataset.portTypeName || 'Porttyp';
+            if (id <= 0) {
+                return;
+            }
+
+            if (!confirm('Porttyp "' + name + '" wirklich loeschen?')) {
+                return;
+            }
+
+            fetch('?module=port_types&action=delete', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
+                body: 'id=' + encodeURIComponent(id)
+            })
+                .then((response) => response.json())
+                .then((data) => {
+                    if (data && data.success) {
+                        window.location.reload();
+                        return;
+                    }
+                    alert((data && data.message) ? data.message : 'Loeschen fehlgeschlagen');
+                })
+                .catch(() => alert('Loeschen fehlgeschlagen'));
+        });
+    });
+});
+</script>