corrected type mismatch

Web/app.py

@@ -6382,10 +6382,6 @@ def is_library_item(item):
 
 @app.route('/item_edit/<id>', methods=['GET', 'POST'])
 def item_edit(id):
-    """
-    Endpoint for editing items. Correctly determines library vs inventory status
-    and renders Filter 1-3 for ALL item types.
-    """
     if 'username' not in session:
         if request.method == 'POST' and request.is_json:
             return jsonify({'success': False, 'message': 'Nicht angemeldet.'}), 401
@@ -6410,18 +6406,17 @@ def item_edit(id):
         flash('Element in der Datenbank nicht gefunden.', 'error')
         return redirect(url_for('home_admin'))
 
-    # Determine item classification
+    # Bibliothek-Status ermitteln
     library_module_active = cfg.MODULES.is_enabled('library')
     is_lib_item = it.is_library_item(current_item)
     show_library_features = library_module_active and is_lib_item
 
     # -------------------------------------------------------------------
-    # GET METHOD: Render Form
+    # GET METHOD
     # -------------------------------------------------------------------
     if request.method == 'GET':
         current_item['_id'] = str(current_item['_id'])
 
-        # Format individual group codes for the textarea
         base_code = current_item.get('Code_4', '')
         individual_codes = []
         if current_item.get('SeriesGroupId'):
@@ -6435,7 +6430,6 @@ def item_edit(id):
 
         current_item['IndividualCodes'] = '\n'.join(individual_codes)
 
-        # FIXED: Changed 'edit_library.html' to 'item_edit.html'
         return render_template(
             'edit_library.html',
             username=session['username'],
@@ -6446,11 +6440,10 @@ def item_edit(id):
         )
 
     # -------------------------------------------------------------------
-    # POST METHOD: Save Changes
+    # POST METHOD
     # -------------------------------------------------------------------
     redirect_target = request.referrer or url_for('home_admin')
 
-    # Common fields
     name = sanitize_form_value(request.form.get('name'))
     ort = sanitize_form_value(request.form.get('ort'))
     beschreibung = sanitize_form_value(request.form.get('beschreibung'))
@@ -6458,12 +6451,11 @@ def item_edit(id):
     anschaffungs_kosten = sanitize_form_value(request.form.get('anschaffungskosten'))
     reservierbar = 'reservierbar' in request.form
 
-    # System Filters 1, 2, and 3 (Processed for ALL items)
+    # Filter 1-3 für alle Objekte
     filter1 = expand_filter_selection(sanitize_form_value(request.form.getlist('filter')), 1)
     filter2 = expand_filter_selection(sanitize_form_value(request.form.getlist('filter2')), 2)
     filter3 = sanitize_form_value(request.form.getlist('filter3'))
 
-    # Barcodes & Group Codes
     code_4 = sanitize_form_value(request.form.get('code_4'))
     individual_codes_raw = request.form.get('individual_codes', '')
 
@@ -6475,7 +6467,6 @@ def item_edit(id):
 
     all_codes_to_check = [code_4] + individual_codes
 
-    # Barcode uniqueness check
     current_group_id = current_item.get('SeriesGroupId')
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db_instance = client[cfg.MONGODB_DB]
@@ -6498,19 +6489,17 @@ def item_edit(id):
     if has_code_error:
         return redirect(redirect_target)
 
-    # Type-specific processing
     if show_library_features:
         isbn_raw = sanitize_form_value(request.form.get('isbn', ''))
         item_isbn = normalize_and_validate_isbn(isbn_raw) if isbn_raw else ''
-        item_type = sanitize_form_value(request.form.get('item_type_input', 'Buch'))
+        item_type = sanitize_form_value(request.form.get('item_type_input', current_item.get('ItemType', 'Buch')))
         library_category = sanitize_form_value(request.form.get('library_category', ''))
         images = current_item.get('Images', [])
     else:
         item_isbn = current_item.get('ISBN', '')
-        item_type = 'other'
+        item_type = current_item.get('ItemType', 'other')
         library_category = current_item.get('library_category', '')
 
-        # Manage images for Inventory Items
         images_to_keep = request.form.getlist('existing_images')
         original_images = current_item.get('Images', [])
         images = [img for img in original_images if img in images_to_keep]
@@ -6551,14 +6540,11 @@ def item_edit(id):
                     except Exception as e:
                         app.logger.error(f"Image error for item {id}: {e}")
 
-    # Auto-add location if applicable
     if ort and ort not in it.get_predefined_locations():
         it.add_predefined_location(ort)
 
-    # Sync group barcodes
     it.sync_group_codes(str(id), code_4, individual_codes)
 
-    # Save to MongoDB
     success = it.update_item(
         id=str(id),
         name=name,