up pages

backend.py

@@ -88,6 +88,7 @@ def create_app():
     app.add_route('/demo/add', event_form)  # Handle event submission form
     app.add_route('/demo/by-what', demo, suffix='by_what')  # Handle events by type page
     app.add_route('/demo/map-by-what', demo, suffix='map_by_what')  # Handle map by event type page
+    app.add_route('/demo/map-by-what/{event_type}', demo, suffix='map_by_what_type')  # Handle map by specific event type
     app.add_route('/demo/edit/{id}', demo, suffix='edit')  # Handle event editing page
     app.add_route('/demo/by_id/{id}', demo, suffix='by_id')  # Handle view single event by id
     app.add_route('/demo/traffic', demo, suffix='traffic')  # Handle traffic jam reporting page