Bugfix: API V2 cache management

VERSION

@@ -1 +1 @@
-2.92.1
+2.92.1+dev

docs/changelog.rst

@@ -5,6 +5,10 @@ CHANGELOG
 2.92.1+dev (XXXX-XX-XX)
 -----------------------
 
+**Bug fixes**
+
+- Fix cache management in API v2
+
 
 2.92.1     (2022-12-01)
 -----------------------

geotrek/api/v2/viewsets.py

@@ -5,6 +5,7 @@
 from mapentity.renderers import GeoJSONRenderer
 from rest_framework import viewsets, renderers
 from rest_framework.authentication import BasicAuthentication, SessionAuthentication
+from rest_framework.generics import get_object_or_404
 from rest_framework.permissions import IsAuthenticatedOrReadOnly, IsAuthenticated
 
 from geotrek.api.v2 import pagination as api_pagination, filters as api_filters
@@ -37,7 +38,9 @@ def get_base_cache_string(self):
     def get_object_cache_key(self, pk):
         """ return specific object cache key based on object date_update column"""
         # don't directly use get_object or get_queryset to avoid select / prefetch and annotation sql queries
-        date_update = self.get_queryset().model.objects.get(pk=pk).date_update
+        # insure object exists and doesn't raise exception
+        instance = get_object_or_404(self.get_queryset().model, pk=pk)
+        date_update = instance.date_update
         return f"{self.get_base_cache_string()}:{date_update.isoformat()}"
 
     def object_cache_key_func(self, **kwargs):

geotrek/settings/base.py

@@ -856,6 +856,7 @@ def api_bbox(bbox, buffer):
 LEAFLET_CONFIG['SPATIAL_EXTENT'] = api_bbox(SPATIAL_EXTENT, VIEWPORT_MARGIN)
 
 REST_FRAMEWORK_EXTENSIONS = {
+    'DEFAULT_USE_CACHE': 'api_v2',
     'DEFAULT_CACHE_ERRORS': False
 }