addition of a csv export funktion for further Processing of the User

Web/modules/terminplaner/blueprint.py

@@ -4,6 +4,9 @@ import Web.modules.terminplaner.backend_server as appointment_service
 import Web.modules.database.settings as cfg
 import Web.modules.database.termine as termin
 import Web.modules.database.user as us
+import csv
+import io
+from flask import make_response, flash, redirect, url_for, session
 
 # Create a blueprint instance
 appoint_bp = Blueprint('terminplaner', __name__)
@@ -34,6 +37,67 @@ def _current_tenant_id():
         pass
     return str(session.get('tenant_id', '') or '').strip()
 
+@appoint_bp.route('/client/<appointment_id>/export_csv')
+def export_csv(appointment_id):
+    """
+    Generiert einen CSV-Export aller Buchungen für den Ersteller.
+    """
+    # 1. Berechtigungsprüfung (analog zur Client-Route)
+    current_user = str(session.get('username', '') or '').strip()
+    appointment_item = termin.get_item(appointment_id) or {}
+    appointment_owner = str(appointment_item.get('user', '') or '').strip()
+    
+    can_view = False
+    if current_user:
+        try:
+            can_view = bool(us.check_admin(current_user) or current_user == appointment_owner)
+        except Exception:
+            can_view = bool(current_user == appointment_owner)
+            
+    if not can_view:
+        flash('Nicht autorisiert für diesen Export.', 'error')
+        return redirect(url_for('terminplaner.client', appointment_id=appointment_id))
+
+    custom_fields = appointment_item.get('custom_fields', [])
+    bookings = appointment_item.get('slots_booked', []) or []
+
+    # 2. CSV im Speicher erstellen
+    si = io.StringIO()
+    # Wir nutzen ein Semikolon als Trennzeichen – das öffnet Excel im deutschsprachigen Raum direkt fehlerfrei
+    cw = csv.writer(si, delimiter=';', quoting=csv.QUOTE_MINIMAL)
+    
+    # Tabellenkopf schreiben
+    headers = ['Zeitpunkt', 'Name'] + list(custom_fields)
+    cw.writerow(headers)
+    
+    # Datenzeilen schreiben
+    for booking in bookings:
+        if isinstance(booking, (list, tuple)):
+            row = [booking[0], booking[1]]
+            
+            # Antworten holen und sicherstellen, dass Lücken (falls vorhanden) mit Leerstrings gefüllt werden
+            answers = booking[2] if len(booking) > 2 else []
+            for i in range(len(custom_fields)):
+                if i < len(answers):
+                    row.append(answers[i])
+                else:
+                    row.append('')
+            cw.writerow(row)
+
+    # 3. Response vorbereiten und UTF-8-BOM für Excel mitsenden
+    response_content = si.getvalue()
+    output = make_response(response_content)
+    
+    # Der Byte Order Mark (BOM) zwingt Excel dazu, UTF-8 (Umlaute) direkt richtig zu erkennen
+    output.data = b'\xef\xbb\xbf' + output.data.encode('utf-8')
+    
+    # Dateiname generieren
+    title_slug = appointment_item.get('title', 'export').replace(' ', '_')
+    output.headers["Content-Disposition"] = f"attachment; filename=buchungen_{title_slug}.csv"
+    output.headers["Content-Type"] = "text/csv; charset=utf-8"
+    
+    return output
+
 @appoint_bp.route('/client/<appointment_id>', methods=['POST', 'GET'])
 def client(appointment_id):
     """

Web/templates/termin_client.html

@@ -97,16 +97,26 @@
                         <div class="card-body p-4 p-md-5 bg-white">
                             
                             {% if can_view_booking_names %}
+                                <!-- ADMIN / AUTOREN ANSICHT -->
                                 <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center gap-3 mb-4">
                                     <div>
                                         <h2 class="h4 fw-bold mb-0">Eingegangene Buchungen</h2>
                                         <div class="text-muted small">Verwalten Sie die Termine Ihrer Klienten</div>
                                     </div>
-                                    <span class="badge bg-primary rounded-pill fs-6 px-3 align-self-start align-self-md-center">
+                                    <div class="d-flex gap-2 align-self-start align-self-md-center">
-                                        {{ available.slots_total - available.slots_left }} von {{ available.slots_total }} belegt
+                                        <!-- Neuer CSV Export Button -->
-                                    </span>
+                                        <a href="{{ url_for('terminplaner.export_csv', appointment_id=appointment_id) }}" class="btn btn-outline-success rounded-3 d-inline-flex align-items-center gap-2">
+                                            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-download" viewBox="0 0 16 16">
+                                                <path d="M.5 9.9a.5.5 0 0 1 .5.5v2.5a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v2.5a.5.5 0 0 1 1 0v2.5a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2v2.5a.5.5 0 0 1 .5-.5"/>
+                                                <path d="M7.646 11.854a.5.5 0 0 0 .708 0l3-3a.5.5 0 0 0-.708-.708L8.5 10.293V1.5a.5.5 0 0 0-1 0v8.793L5.354 8.146a.5.5 0 1 0-.708.708z"/>
+                                            </svg>
+                                            Excel / CSV Export
+                                        </a>
+                                        <span class="badge bg-primary rounded-pill fs-6 px-3 d-flex align-items-center">
+                                            {{ available.slots_total - available.slots_left }} von {{ available.slots_total }} belegt
+                                        </span>
+                                    </div>
                                 </div>
-
                                 <div class="bg-light p-3 rounded-3 mb-4">
                                     <div class="row g-2 align-items-center">
                                         <div class="col-12 col-md-8">
@@ -146,7 +156,7 @@
                                                 <td>
                                                     <span class="fw-bold text-dark">{{ booking[1] }}</span>
                                                 </td>
-                                                
+
                                                 <!-- 3. CUSTOM FIELDS (Präziser Index-Abgleich gegen Spaltenkopf) -->
                                                 {% for field in custom_fields %}
                                                     <td>
@@ -166,7 +176,7 @@
                                                         <input type="hidden" name="action" value="delete">
                                                         <input type="hidden" name="slot_time" value="{{ booking[0] }}">
                                                         <input type="hidden" name="target_client_name" value="{{ booking[1] }}">
-                                                        
+
                                                         <button type="submit" class="btn btn-sm btn-outline-danger px-3 rounded-3">
                                                             Löschen
                                                         </button>