Use handler to build menus

rattail_demo/config.py

@@ -20,7 +20,7 @@ class DemoConfigExtension(ConfigExtension):
         config.setdefault('rattail', 'model', 'rattail_demo.db.model')
         config.setdefault('rattail.trainwreck', 'model', 'rattail.trainwreck.db.model.defaults')
         config.setdefault('rattail.mail', 'emails', 'rattail_demo.emails')
-        config.setdefault('tailbone', 'menus', 'rattail_demo.web.menus')
+        config.setdefault('tailbone.menus', 'handler', 'rattail_demo.web.menus:DemoMenuHandler')
 
         # default app handlers
         config.setdefault('rattail', 'products.handler', 'rattail_corepos.products:CoreProductsHandler')

rattail_demo/web/menus.py

@@ -3,12 +3,16 @@
 Web Menus
 """
 
+from tailbone import menus as base
 from tailbone_corepos.menus import make_corepos_menu
 
 
-def simple_menus(request):
+class DemoMenuHandler(base.MenuHandler):
-    url = request.route_url
+    """
-    rattail_config = request.rattail_config
+    Demo menu handler
+    """
+
+    def make_menus(self, request, **kwargs):
 
         people_menu = {
             'title': "People",
@@ -333,7 +337,7 @@ def simple_menus(request):
             batch_menu,
         ]
 
-    if rattail_config.trainwreck_engine:
+        if self.config.trainwreck_engine:
             menus.append(trainwreck_menu)
 
         menus.extend([