Warn users if there is no metadata configured

bricktracker/views/admin/admin.py

@@ -84,6 +84,7 @@ def admin() -> str:
     open_image = request.args.get('open_image', None)
     open_instructions = request.args.get('open_instructions', None)
     open_logout = request.args.get('open_logout', None)
+    open_metadata = request.args.get('open_metadata', None)
     open_owner = request.args.get('open_owner', None)
     open_purchase_location = request.args.get('open_purchase_location', None)
     open_retired = request.args.get('open_retired', None)
@@ -93,6 +94,7 @@ def admin() -> str:
     open_theme = request.args.get('open_theme', None)
 
     open_metadata = (
+        open_metadata or
         open_owner or
         open_purchase_location or
         open_status or

templates/add.html

@@ -37,6 +37,12 @@
           </div>
           <h6 class="border-bottom mt-2">Metadata</h6>
           <div class="accordion accordion" id="metadata">
+            {% if not (brickset_owners | length) and not (brickset_purchase_locations | length) and not (brickset_storages | length) and not (brickset_tags | length) %}
+              <div class="alert alert-warning" role="alert">
+                You have no metadata configured.
+                You can add entries in the <a href="{{ url_for('admin.admin', open_metadata=true) }}" class="btn btn-warning" role="button"><i class="ri-profile-line"></i> Set metadata management</a> section of the Admin panel.
+              </div>
+              {% else %}
               {% if brickset_owners | length %}
                 {{ accordion.header('Owners', 'owners', 'metadata', icon='user-line') }}
                 <div id="add-owners">
@@ -91,6 +97,7 @@
                 </div>
                 {{ accordion.footer() }}
               {% endif %}
+            {% endif %}
           </div>
           <hr>
           <div class="mb-3">