Improve error handling for park and area detail views

Update ParkDetailView and ParkAreaDetailView to raise Http404 exceptions instead of ObjectDoesNotExist for improved HTTP error handling.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: c446bc9e-66df-438c-a86c-f53e6da13649
Replit-Commit-Checkpoint-Type: intermediate_checkpoint

apps/parks/views.py

@@ -18,6 +18,7 @@ from django.http import (
     HttpResponse,
     HttpRequest,
     JsonResponse,
+    Http404,
 )
 from django.core.exceptions import ObjectDoesNotExist
 from django.contrib import messages
@@ -818,9 +819,12 @@ class ParkDetailView(
             queryset = self.get_queryset()
         slug = self.kwargs.get(self.slug_url_kwarg)
         if slug is None:
-            raise ObjectDoesNotExist("No slug provided")
-        park, _ = Park.get_by_slug(slug)
-        return park
+            raise Http404("No slug provided")
+        try:
+            park, _ = Park.get_by_slug(slug)
+            return park
+        except Park.DoesNotExist:
+            raise Http404("Park not found")
 
     def get_queryset(self) -> QuerySet[Park]:
         return cast(
@@ -870,11 +874,15 @@ class ParkAreaDetailView(
         park_slug = self.kwargs.get("park_slug")
         area_slug = self.kwargs.get("area_slug")
         if park_slug is None or area_slug is None:
-            raise ObjectDoesNotExist("Missing slug")
-        area, _ = ParkArea.get_by_slug(area_slug)
-        if area.park.slug != park_slug:
-            raise ObjectDoesNotExist("Park slug doesn't match")
-        return area
+            raise Http404("Missing slug")
+        try:
+            # Find the park first
+            park = Park.objects.get(slug=park_slug)
+            # Then find the area within that park
+            area = ParkArea.objects.get(park=park, slug=area_slug)
+            return area
+        except (Park.DoesNotExist, ParkArea.DoesNotExist):
+            raise Http404("Park or area not found")
 
     def get_context_data(self, **kwargs: Any) -> dict[str, Any]:
         context = super().get_context_data(**kwargs)