add category views for each type of ride, add ride designers

designers/views.py

@@ -0,0 +1,29 @@
+from django.views.generic import DetailView
+from .models import Designer
+from django.db.models import Count
+
+class DesignerDetailView(DetailView):
+    model = Designer
+    template_name = 'designers/designer_detail.html'
+    context_object_name = 'designer'
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        # Get all rides by this designer
+        context['rides'] = self.object.rides.select_related(
+            'park', 
+            'manufacturer', 
+            'coaster_stats'
+        ).order_by('-opening_date')
+        
+        # Get stats
+        context['stats'] = {
+            'total_rides': self.object.rides.count(),
+            'total_parks': self.object.rides.values('park').distinct().count(),
+            'total_coasters': self.object.rides.filter(category='RC').count(),
+            'total_countries': self.object.rides.values(
+                'park__location__country'
+            ).distinct().count(),
+        }
+        
+        return context