Add breadcrumb support to inventory listing and update templates for improved navigation

routes.py

@@ -107,6 +107,7 @@ def render_paginated_table(
     row_fn: Callable[[Any], List[dict]],
     endpoint: str,
     per_page=15,
+    breadcrumb=[],
     extra_args={}
 ):
     data = make_paginated_data(query, page, per_page)
@@ -122,6 +123,7 @@ def render_paginated_table(
         total_pages=data['total_pages'],
         headers=headers,
         entry_route=entry_route,
+        breadcrumb=breadcrumb,
         extra_args=extra_args
     )
 
@@ -144,6 +146,8 @@ def list_inventory():
     filter_by = request.args.get('filter_by', type=str)
     id = request.args.get('id', type=int)
 
+    filter_name = None
+
     query = db.session.query(Inventory)
     query = eager_load_inventory_relationships(query)
     query = query.order_by(Inventory.inventory_name, Inventory.barcode, Inventory.serial)
@@ -151,6 +155,12 @@ def list_inventory():
     if filter_by and id:
         column = FILTER_MAP.get(filter_by)
         if column is not None:
+            if filter_by == 'user':
+                filter_name = db.session.query(User).filter(User.id == id).first().full_name
+            elif filter_by == 'room':
+                filter_name = db.session.query(Room).filter(Room.id == id).first().full_name
+            else:
+                filter_name = db.session.query(Brand).filter(Brand.id == id).first().name
             query = query.filter(column == id)
         else:
             return "Invalid filter_by parameter", 400
@@ -158,11 +168,12 @@ def list_inventory():
     return render_paginated_table(
         query=query,
         page=page,
-        title="Inventory (Filtered)" if filter_by else "Inventory",
+        title=f"Inventory ({filter_name})" if filter_by else "Inventory",
         headers=inventory_headers,
         row_fn=lambda i: [fn(i) for fn in inventory_headers.values()],
         endpoint="main.list_inventory",
         entry_route="inventory_item",
+        breadcrumb=[{'label': 'Inventory', 'url': url_for('main.inventory_index')}],
         extra_args={'filter_by': filter_by, 'id': id}
     )