Default Filternames Changes for the main_admin.html

Web/app.py

@@ -3203,6 +3203,8 @@ def home_admin():
         flash('Ihnen ist es nicht gestattet auf dieser Internetanwendung, die eben besuchte Adrrese zu nutzen, versuchen sie es erneut nach dem sie sich mit einem berechtigten Nutzer angemeldet haben!', 'error')
         return redirect(url_for('library_view'))
 
+    filter_names = it.get_filter_names()
+
     return render_template(
         'main_admin.html',
         username=session['username'],
@@ -3212,6 +3214,7 @@ def home_admin():
         student_default_borrow_days=cfg.STUDENT_DEFAULT_BORROW_DAYS,
         student_max_borrow_days=cfg.STUDENT_MAX_BORROW_DAYS,
         school_info=_get_school_info_for_export(),
+        filter_names=filter_names,
         open_item=request.args.get('open_item')
     )
 
@@ -3795,6 +3798,7 @@ def mahnungen_admin():
         overdue_items=overdue_list,
         library_module_enabled=cfg.MODULES.is_enabled('library'),
         student_cards_module_enabled=cfg.MODULES.is_enabled('student_cards'),
+        email_service_enabled=cfg.EMAIL_ENABLED
     )
 
 @app.route('/mahnungen_reset', methods=['POST'])
@@ -8627,6 +8631,72 @@ def register_csv():
         mimetype='application/pdf'
     )
 
+@app.route('/export_users_csv', methods=['POST'])
+def export_users_csv():
+    """
+    Exports a filtered list of users to a CSV file.
+    Receives a JSON array of usernames from the frontend.
+    """
+    if 'username' not in session:
+        flash('Ihnen ist es nicht gestattet, diese Aktion auszuführen.', 'error')
+        return redirect(url_for('login'))
+
+    usernames_json = request.form.get('usernames')
+    if not usernames_json:
+        flash('Keine Benutzer zum Exportieren ausgewählt.', 'error')
+        return redirect(url_for('user_del'))
+
+    try:
+        target_usernames = json.loads(usernames_json)
+    except json.JSONDecodeError:
+        flash('Ungültige Daten beim Export übermittelt.', 'error')
+        return redirect(url_for('user_del'))
+
+    # Fetch all users
+    all_users = us.get_all_users()
+
+    # Create CSV in memory
+    si = io.StringIO()
+    # Delimiter set to semicolon (standard for Excel in German locales)
+    cw = csv.writer(si, delimiter=';')
+
+    # Write headers
+    cw.writerow(['Benutzername', 'Vorname', 'Nachname', 'Administrator', 'Rechte-Preset'])
+
+    for user in all_users:
+        encrypted_username = user.get('Username')
+        if not encrypted_username:
+            continue
+
+        uname = decrypt_text(encrypted_username)
+
+        # Only process users that were present in the frontend's filtered view
+        if uname in target_usernames:
+            try:
+                permissions_payload = us.get_effective_permissions(uname)
+                preset = permissions_payload.get('preset', 'standard_user')
+            except Exception:
+                preset = 'standard_user'
+
+            try:
+                name = us.get_name(uname) or ""
+                last_name = us.get_last_name(uname) or ""
+            except Exception:
+                name = ""
+                last_name = ""
+
+            admin_status = "Ja" if user.get('Admin', False) else "Nein"
+
+            cw.writerow([uname, name, last_name, admin_status, preset])
+
+    # Prefix with BOM (Byte Order Mark) to ensure Excel reads UTF-8 (Umlauts) correctly
+    output = '\ufeff' + si.getvalue()
+
+    return Response(
+        output,
+        mimetype="text/csv",
+        headers={"Content-disposition": "attachment; filename=benutzer_export.csv"}
+    )
 
 @app.route('/user_del', methods=['GET'])
 def user_del():

Web/modules/database/items.py

@@ -911,9 +911,9 @@ def get_filter_names():
     if names_doc and 'names' in names_doc:
         return names_doc['names']
     return {
-        '1': 'Fach/Kategorie',
-        '2': 'System/Bereich',
-        '3': 'Typ/Art'
+        '1': 'Klassenstufe',
+        '2': 'Fach',
+        '3': 'Schlagwort'
     }
 
 def set_filter_name(filter_num, name):

Web/templates/admin_school_settings.html

@@ -78,15 +78,15 @@
                     <div class="form-row">
                         <div class="form-group">
                             <label for="filter_name_1">Name Filter 1</label>
-                            <input type="text" id="filter_name_1" name="filter_name_1" value="{{ filter_names.get('1', 'Fach/Kategorie') }}" placeholder="z. B. Fach/Kategorie">
+                            <input type="text" id="filter_name_1" name="filter_name_1" value="{{ filter_names.get('1', 'Klassenstufe') }}" placeholder="z. B. Klassenstufe">
                         </div>
                         <div class="form-group">
                             <label for="filter_name_2">Name Filter 2</label>
-                            <input type="text" id="filter_name_2" name="filter_name_2" value="{{ filter_names.get('2', 'System/Bereich') }}" placeholder="z. B. System/Bereich">
+                            <input type="text" id="filter_name_2" name="filter_name_2" value="{{ filter_names.get('2', 'Fach') }}" placeholder="z. B. Fach">
                         </div>
                         <div class="form-group">
                             <label for="filter_name_3">Name Filter 3</label>
-                            <input type="text" id="filter_name_3" name="filter_name_3" value="{{ filter_names.get('3', 'Typ/Art') }}" placeholder="z. B. Typ/Art">
+                            <input type="text" id="filter_name_3" name="filter_name_3" value="{{ filter_names.get('3', 'Schlagwort') }}" placeholder="z. B. Schlagwort">
                         </div>
                     </div>
 

Web/templates/library_borrowings_admin.html

@@ -122,7 +122,7 @@
     letter-spacing: 0.04em;
     color: #64748b;
     background: var(--ui-surface-soft);
-    user-select: none; /* Verhindert Textmarkierung beim Klicken */
+    user-select: none;
   }
 
   .library-table tr:hover td {
@@ -151,7 +151,7 @@
   .badge-open { background: #fee2e2; color: #991b1b; }
   .badge-paid { background: #dcfce7; color: #166534; }
   .badge-damaged { background: #fee2e2; color: #991b1b; }
-  .badge-class { background: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; } /* Neues Badge für Klasse */
+  .badge-class { background: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; }
 
   .row-actions {
     display: flex;
@@ -168,6 +168,32 @@
     white-space: nowrap;
   }
 
+  .row-actions .btn-outline-danger {
+    color: #dc2626;
+    background-color: #fef2f2; /* Light red tint so it doesn't blend into the white table */
+    border: 2px solid #dc2626; /* Thicker, clear border */
+    padding: 6px 14px;
+    border-radius: 6px;
+    font-weight: bold;
+    font-size: 0.85rem;
+    cursor: pointer;
+    box-shadow: 0 2px 4px rgba(220, 38, 38, 0.1); /* Subtle shadow for depth */
+    transition: all 0.2s ease;
+  }
+
+  .row-actions .btn-outline-danger:hover {
+    background-color: #dc2626;
+    color: #ffffff;
+    box-shadow: 0 4px 8px rgba(220, 38, 38, 0.25);
+    transform: translateY(-1px); /* Slight lift effect on hover */
+  }
+
+  .row-actions .btn-outline-danger:active {
+    transform: translateY(0);
+    box-shadow: 0 1px 2px rgba(220, 38, 38, 0.15); /* Pressed state */
+  }
+  /* ------------------------------------------------------ */
+
   .muted {
     color: #6b7280;
     font-size: 0.92rem;

Web/templates/library_table.html

@@ -614,6 +614,199 @@
 </div>
 <script src="https://cdn.jsdelivr.net/npm/@ericblade/quagga2/dist/quagga.js"></script>
 <script>
+
+    // =========================================================================
+    // CUSTOM MODAL HELPERS (Replaces native browser alert, confirm & prompt)
+    // =========================================================================
+    function createModalOverlay() {
+        const overlay = document.createElement('div');
+        overlay.style.position = 'fixed';
+        overlay.style.top = '0';
+        overlay.style.left = '0';
+        overlay.style.width = '100vw';
+        overlay.style.height = '100vh';
+        overlay.style.backgroundColor = 'rgba(0, 0, 0, 0.6)';
+        overlay.style.display = 'flex';
+        overlay.style.alignItems = 'center';
+        overlay.style.justifyContent = 'center';
+        overlay.style.zIndex = '999999';
+        return overlay;
+    }
+
+    function createModalBox() {
+        const box = document.createElement('div');
+        box.style.backgroundColor = '#fff';
+        box.style.padding = '24px';
+        box.style.borderRadius = '8px';
+        box.style.boxShadow = '0 10px 25px rgba(0,0,0,0.2)';
+        box.style.fontFamily = 'sans-serif';
+        box.style.minWidth = '320px';
+        box.style.maxWidth = '90%';
+        box.style.textAlign = 'left';
+        box.style.color = '#333';
+        return box;
+    }
+
+    function customAlert(message) {
+        return new Promise((resolve) => {
+            const overlay = createModalOverlay();
+            const box = createModalBox();
+
+            const text = document.createElement('p');
+            text.textContent = message;
+            text.style.marginBottom = '20px';
+            text.style.lineHeight = '1.5';
+            text.style.whiteSpace = 'pre-wrap';
+
+            const btnContainer = document.createElement('div');
+            btnContainer.style.display = 'flex';
+            btnContainer.style.justifyContent = 'flex-end';
+
+            const btn = document.createElement('button');
+            btn.textContent = 'OK';
+            btn.style.padding = '8px 16px';
+            btn.style.cursor = 'pointer';
+            btn.style.border = 'none';
+            btn.style.backgroundColor = '#007bff';
+            btn.style.color = '#fff';
+            btn.style.borderRadius = '4px';
+
+            btn.onclick = () => {
+                document.body.removeChild(overlay);
+                resolve();
+            };
+
+            btnContainer.appendChild(btn);
+            box.appendChild(text);
+            box.appendChild(btnContainer);
+            overlay.appendChild(box);
+            document.body.appendChild(overlay);
+            btn.focus();
+        });
+    }
+
+    function customConfirm(message) {
+        return new Promise((resolve) => {
+            const overlay = createModalOverlay();
+            const box = createModalBox();
+
+            const text = document.createElement('p');
+            text.textContent = message;
+            text.style.marginBottom = '20px';
+            text.style.lineHeight = '1.5';
+            text.style.whiteSpace = 'pre-wrap';
+
+            const btnContainer = document.createElement('div');
+            btnContainer.style.display = 'flex';
+            btnContainer.style.justifyContent = 'flex-end';
+            btnContainer.style.gap = '10px';
+
+            const cancelBtn = document.createElement('button');
+            cancelBtn.textContent = 'Abbrechen';
+            cancelBtn.style.padding = '8px 16px';
+            cancelBtn.style.cursor = 'pointer';
+            cancelBtn.style.border = '1px solid #ccc';
+            cancelBtn.style.backgroundColor = '#f8f9fa';
+            cancelBtn.style.color = '#333';
+            cancelBtn.style.borderRadius = '4px';
+
+            const okBtn = document.createElement('button');
+            okBtn.textContent = 'OK';
+            okBtn.style.padding = '8px 16px';
+            okBtn.style.cursor = 'pointer';
+            okBtn.style.border = 'none';
+            okBtn.style.backgroundColor = '#007bff';
+            okBtn.style.color = '#fff';
+            okBtn.style.borderRadius = '4px';
+
+            const closeAndResolve = (val) => {
+                document.body.removeChild(overlay);
+                resolve(val);
+            };
+
+            cancelBtn.onclick = () => closeAndResolve(false);
+            okBtn.onclick = () => closeAndResolve(true);
+
+            btnContainer.appendChild(cancelBtn);
+            btnContainer.appendChild(okBtn);
+            box.appendChild(text);
+            box.appendChild(btnContainer);
+            overlay.appendChild(box);
+            document.body.appendChild(overlay);
+            okBtn.focus();
+        });
+    }
+
+    function customPrompt(message, defaultValue = '') {
+        return new Promise((resolve) => {
+            const overlay = createModalOverlay();
+            const box = createModalBox();
+
+            const text = document.createElement('p');
+            text.textContent = message;
+            text.style.marginBottom = '15px';
+            text.style.lineHeight = '1.5';
+            text.style.whiteSpace = 'pre-wrap';
+
+            const input = document.createElement('input');
+            input.type = 'text';
+            input.value = defaultValue;
+            input.style.width = '100%';
+            input.style.marginBottom = '20px';
+            input.style.padding = '10px';
+            input.style.boxSizing = 'border-box';
+            input.style.border = '1px solid #ccc';
+            input.style.borderRadius = '4px';
+
+            const btnContainer = document.createElement('div');
+            btnContainer.style.display = 'flex';
+            btnContainer.style.justifyContent = 'flex-end';
+            btnContainer.style.gap = '10px';
+
+            const cancelBtn = document.createElement('button');
+            cancelBtn.textContent = 'Abbrechen';
+            cancelBtn.style.padding = '8px 16px';
+            cancelBtn.style.cursor = 'pointer';
+            cancelBtn.style.border = '1px solid #ccc';
+            cancelBtn.style.backgroundColor = '#f8f9fa';
+            cancelBtn.style.color = '#333';
+            cancelBtn.style.borderRadius = '4px';
+
+            const okBtn = document.createElement('button');
+            okBtn.textContent = 'OK';
+            okBtn.style.padding = '8px 16px';
+            okBtn.style.cursor = 'pointer';
+            okBtn.style.border = 'none';
+            okBtn.style.backgroundColor = '#007bff';
+            okBtn.style.color = '#fff';
+            okBtn.style.borderRadius = '4px';
+
+            const closeAndResolve = (val) => {
+                document.body.removeChild(overlay);
+                resolve(val);
+            };
+
+            cancelBtn.onclick = () => closeAndResolve(null);
+            okBtn.onclick = () => closeAndResolve(input.value);
+
+            input.onkeydown = (e) => {
+                if (e.key === 'Enter') closeAndResolve(input.value);
+                if (e.key === 'Escape') closeAndResolve(null);
+            };
+
+            btnContainer.appendChild(cancelBtn);
+            btnContainer.appendChild(okBtn);
+
+            box.appendChild(text);
+            box.appendChild(input);
+            box.appendChild(btnContainer);
+            overlay.appendChild(box);
+            document.body.appendChild(overlay);
+
+            input.focus();
+            input.select();
+        });
+    }
     // =========================================================================
     // 1. GLOBAL STATE DEFINITIONS
     // =========================================================================
@@ -884,7 +1077,7 @@
                     name: "Live",
                     type: "LiveStream",
                     // This MUST match the inner div where the video should appear
-                    target: document.querySelector('.library-scan-reader'), 
+                    target: document.querySelector('.library-scan-reader'),
                     constraints: {
                         width: 640,
                         height: 480,
@@ -897,7 +1090,7 @@
                 },
                 decoder: {
                     // Keep only the barcode types you actually use to improve performance
-                    readers: ["code_128_reader", "ean_reader", "code_39_reader"] 
+                    readers: ["code_128_reader", "ean_reader", "code_39_reader"]
                 },
                 locate: true
             }, function(err) {
@@ -1243,31 +1436,39 @@
     // =========================================================================
     // 4. UI INTERACTIONS & UTILITIES
     // =========================================================================
-    function borrowItem(itemId) {
+    async function borrowItem(itemId) {
         const selectedItem = (libraryItems || []).find(item => item._id === itemId);
         if (selectedItem && selectedItem.LibraryDisplayStatus === 'damaged') {
-            alert('Dieses Medium ist als defekt/zerstört markiert und kann nicht ausgeliehen werden.');
+            await customAlert('Dieses Medium ist als defekt/zerstört markiert und kann nicht ausgeliehen werden.');
             return;
         }
 
         const defaultCardId = activeStudentCardId || '';
-        const cardId = (window.prompt('Bitte Bibliotheksausweis-ID eingeben:', defaultCardId) || '').trim().toUpperCase();
+        const promptCardResult = await customPrompt('Bitte Bibliotheksausweis-ID eingeben:', defaultCardId);
+        if (promptCardResult === null) return;
+
+        const cardId = promptCardResult.trim().toUpperCase();
         if (!cardId) {
-            alert('Ausleihe abgebrochen: Für Bibliotheksmedien ist eine gültige Bibliotheksausweis-ID erforderlich.');
+            await customAlert('Ausleihe abgebrochen: Für Bibliotheksmedien ist eine gültige Bibliotheksausweis-ID erforderlich.');
             return;
         }
 
         setActiveStudentCard(cardId);
 
-        const durationInput = (window.prompt('Ausleihdauer in Tagen (optional):') || '').trim();
+        const promptDurationResult = await customPrompt('Ausleihdauer in Tagen (optional):');
+        if (promptDurationResult === null) return;
+        const durationInput = promptDurationResult.trim();
+
         const maxAvailable = Math.max(1, parseInt(selectedItem?.AvailableGroupedCount || selectedItem?.Quantity || 1, 10) || 1);
-        const countPrompt = (window.prompt(`Anzahl ausleihen? (Standard: 1, verfügbar: ${maxAvailable})`, '1') || '').trim();
-        let borrowCount = parseInt(countPrompt || '1', 10);
+        const countPromptResult = await customPrompt(`Anzahl ausleihen? (Standard: 1, verfügbar: ${maxAvailable})`, '1');
+        if (countPromptResult === null) return;
+
+        let borrowCount = parseInt(countPromptResult.trim() || '1', 10);
         if (!Number.isFinite(borrowCount) || borrowCount < 1) {
             borrowCount = 1;
         }
         if (borrowCount > maxAvailable) {
-            alert(`Es sind nur ${maxAvailable} Exemplar(e) verfügbar.`);
+            await customAlert(`Es sind nur ${maxAvailable} Exemplar(e) verfügbar.`);
             return;
         }
 

Web/templates/mahnungen_admin.html

@@ -179,10 +179,12 @@
                                     </td>
                                     <td class="text-end">
                                         <div class="btn-group" role="group">
+                                            {% if mail_service_enabled %}
                                             <button type="button" class="btn btn-sm btn-outline-primary"
                                                     onclick="openEmailModal('{{ item.id }}', '{{ item.schueler_name }}', '{{ item.email }}')">
                                                 <i class="bi bi-envelope"></i> E-Mail
                                             </button>
+                                            {% endif %}
                                             <button type="button" class="btn btn-sm btn-outline-warning text-dark"
                                                     onclick="resetMahnung('{{ item.id }}', '{{ item.schueler_name }}')">
                                                 <i class="bi bi-arrow-counterclockwise"></i> Zurücksetzen

Web/templates/main_admin.html

@@ -2343,7 +2343,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
         <div class="filter-container">
             <div class="filter-group">
                 <div class="filter-header">
-                    <label>Unterrichtsfach:</label>
+                    <label>{{ filter_names.get('1', 'Klassenstufe') }}</label>
                     <button type="button" class="filter-toggle" onclick="toggleFilterDropdown('filter1-dropdown')">▼</button>
                     <button type="button" class="clear-filter" onclick="clearFilter(1)">Clear</button>
                 </div>
@@ -2357,7 +2357,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
             
             <div class="filter-group">
                 <div class="filter-header">
-                    <label>Jahrgangsstufe:</label>
+                    <label>{{ filter_names.get('2', 'Fach') }}</label>
                     <button type="button" class="filter-toggle" onclick="toggleFilterDropdown('filter2-dropdown')">▼</button>
                     <button type="button" class="clear-filter" onclick="clearFilter(2)">Clear</button>
                 </div>
@@ -2371,7 +2371,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
             
             <div class="filter-group">
                 <div class="filter-header">
-                    <label>Schlagwort:</label>
+                    <label>{{ filter_names.get('3', 'Schlagwort') }}</label>
                     <button type="button" class="filter-toggle" onclick="toggleFilterDropdown('filter3-dropdown')">▼</button>
                     <button type="button" class="clear-filter" onclick="clearFilter(3)">Clear</button>
                 </div>

Web/templates/user_del.html

@@ -53,8 +53,11 @@
                         <option value="desc">Absteigend</option>
                     </select>
                 </div>
-                <div class="col-md-2">
-                    <button class="btn btn-secondary w-100" onclick="resetFilters()">Filter zurücksetzen</button>
+                <div class="col-md-3">
+                    <div class="d-flex gap-2">
+                        <button class="btn btn-secondary flex-grow-1" onclick="resetFilters()">Zurücksetzen</button>
+                        <button class="btn btn-success flex-grow-1" onclick="exportFilteredUsers()">Exportieren</button>
+                    </div>
                 </div>
             </div>
             <div class="mt-2 text-muted small" id="filter-count"></div>
@@ -82,19 +85,20 @@
                         <td>{{ permission_presets.get(user.permission_preset, {}).get('label', user.permission_preset) }}</td>
                         <td class="actions">
                             <form method="POST" action="{{ url_for('delete_user') }}" class="d-inline">
+                                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                                 <input type="hidden" name="username" value="{{ user.username }}">
                                 <button type="submit" class="btn btn-danger btn-sm" onclick="return confirm('Sind Sie sicher, dass Sie den Benutzer {{ user.username }} löschen möchten?')">
                                     Löschen
                                 </button>
                             </form>
-                            <button type="button" class="btn btn-primary btn-sm" 
+                            <button type="button" class="btn btn-primary btn-sm"
                                     data-username="{{ user.username }}"
                                     data-firstname="{{ user.name if user.name else '' }}"
                                     data-lastname="{{ user.last_name if user.last_name else '' }}"
                                     onclick="openEditUserModal(this)">
                                 Bearbeiten
                             </button>
-                            <button type="button" class="btn btn-warning btn-sm" 
+                            <button type="button" class="btn btn-warning btn-sm"
                                     onclick="openResetPasswordModal('{{ user.username }}')">
                                 Passwort zurücksetzen
                             </button>
@@ -124,6 +128,7 @@
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="POST" action="{{ url_for('admin_update_user_permissions') }}">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                 <div class="modal-body permissions-modal-body">
                     <input type="hidden" id="perm-username" name="username">
                     <div class="mb-3">
@@ -180,6 +185,7 @@
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="POST" action="{{ url_for('admin_update_user_name') }}">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                 <div class="modal-body">
                     <input type="hidden" id="edit-username" name="username">
                     <div class="mb-3">
@@ -213,6 +219,7 @@
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="POST" action="{{ url_for('admin_reset_user_password') }}">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                 <div class="modal-body">
                     <input type="hidden" id="reset-username" name="username">
                     <div class="mb-3">
@@ -313,6 +320,54 @@
         applyFilters();
     }
 
+    function exportFilteredUsers() {
+        var table = document.getElementById('user-table');
+        var tbody = table.querySelector('tbody');
+        var rows = Array.from(tbody.querySelectorAll('tr'));
+
+        var visibleUsernames = [];
+
+        // Sammle alle Benutzernamen, die durch den Filter aktuell NICHT versteckt sind
+        rows.forEach(function(row) {
+            if (row.style.display !== 'none') {
+                var cells = row.querySelectorAll('td');
+                if (cells.length > 0) {
+                    visibleUsernames.push(cells[0].textContent.trim());
+                }
+            }
+        });
+
+        if (visibleUsernames.length === 0) {
+            alert('Keine Benutzer zum Exportieren vorhanden.');
+            return;
+        }
+
+        // Dynamisches Formular erstellen
+        var form = document.createElement('form');
+        form.method = 'POST';
+        form.action = "{{ url_for('export_users_csv') }}";
+
+        // 1. CSRF-Token als Wert (ohne Klammern) übergeben
+        var csrfInput = document.createElement('input');
+        csrfInput.type = 'hidden';
+        csrfInput.name = 'csrf_token';
+        csrfInput.value = "{{ csrf_token }}";
+        form.appendChild(csrfInput);
+
+        // 2. Gefilterte Benutzernamen hinzufügen
+        var input = document.createElement('input');
+        input.type = 'hidden';
+        input.name = 'usernames';
+        input.value = JSON.stringify(visibleUsernames);
+        form.appendChild(input);
+
+        document.body.appendChild(form);
+        form.submit();
+
+        // Aufräumen
+        document.body.removeChild(form);
+    }
+
     document.addEventListener('DOMContentLoaded', function() {
         applyFilters();
         document.getElementById('filter-search').addEventListener('input', applyFilters);
@@ -332,12 +387,12 @@
         var username = button.getAttribute('data-username');
         var name = button.getAttribute('data-firstname');
         var lastName = button.getAttribute('data-lastname');
-        
+
         document.getElementById('edit-username').value = username;
         document.getElementById('edit-username-display').value = username;
         document.getElementById('edit-name').value = name;
         document.getElementById('edit-last-name').value = lastName;
-        
+
         var modal = new bootstrap.Modal(document.getElementById('editUserModal'));
         modal.show();
     }
@@ -345,8 +400,7 @@
     function openResetPasswordModal(username) {
         document.getElementById('reset-username').value = username;
         document.getElementById('username-display').value = username;
-        
-        // Open modal using Bootstrap
+
         var modal = new bootstrap.Modal(document.getElementById('resetPasswordModal'));
         modal.show();
     }