fix(auditLogs): use fast pagination (#6069)

### 📣 Summary
Speed up the audit log endpoints.

### 💭 Notes
Use FastPagination on the audit log endpoints to avoid having to do a
select distinct on a large number of fields on a large table.

### 👀 Preview steps
Run the server with --print-sql.

1. Go to `/api/v2/audit-logs/?q=log_type:asset-management&format=json`
2. 🔴 [on main] Notice there is a query in the logs for `SELECT COUNT(*)
from (SELECT DISTINCT <lots of fields> from audit_log_auditlog...)`
3. 🟢 [on PR] Notice the query is now `SELECT COUNT(*) from (SELECT
DISTINCT id FROM audit_log_auditlog...)`

Author: rgraber

kobo/apps/audit_log/views.py

@@ -11,6 +11,7 @@
     ImportExportTask,
     ProjectHistoryLogExportTask,
 )
+from kpi.paginators import FastPagination, Paginated
 from kpi.permissions import IsAuthenticated
 from kpi.tasks import export_task_in_background
 from kpi.utils.viewset_mixins import AssetNestedObjectViewsetMixin
@@ -168,6 +169,7 @@ class AuditLogViewSet(mixins.ListModelMixin, viewsets.GenericViewSet):
         'model_name__icontains',
         'metadata__icontains',
     ]
+    pagination_class = FastPagination
 
 
 class AllAccessLogViewSet(AuditLogViewSet):
@@ -274,6 +276,7 @@ class AllAccessLogViewSet(AuditLogViewSet):
 
     queryset = AccessLog.objects.with_submissions_grouped().order_by('-date_created')
     serializer_class = AccessLogSerializer
+    pagination_class = Paginated
 
 
 class AccessLogViewSet(AuditLogViewSet):
@@ -334,6 +337,7 @@ class AccessLogViewSet(AuditLogViewSet):
     permission_classes = (IsAuthenticated,)
     filter_backends = (AccessLogPermissionsFilter,)
     serializer_class = AccessLogSerializer
+    pagination_class = Paginated
 
 
 def generate_ph_view_set_logstring(description, path, example_path, all):

kobo/apps/project_views/views.py

@@ -14,7 +14,7 @@
 from kpi.mixins.asset import AssetViewSetListMixin
 from kpi.mixins.object_permission import ObjectPermissionViewSetMixin
 from kpi.models import Asset, ProjectViewExportTask
-from kpi.paginators import FastAssetPagination
+from kpi.paginators import FastPagination
 from kpi.permissions import IsAuthenticated
 from kpi.serializers.v2.asset import AssetMetadataListSerializer
 from kpi.serializers.v2.user import UserListSerializer
@@ -48,7 +48,7 @@ def get_queryset(self, *args, **kwargs):
         detail=True,
         methods=['GET'],
         filter_backends=[SearchFilter, AssetOrderingFilter],
-        pagination_class=FastAssetPagination,
+        pagination_class=FastPagination,
     )
     def assets(self, request, uid):
         if not user_has_view_perms(request.user, uid):

kpi/paginators.py

@@ -122,7 +122,7 @@ class DataPagination(LimitOffsetPagination):
     max_limit = settings.SUBMISSION_LIST_LIMIT
 
 
-class FastAssetPagination(Paginated):
+class FastPagination(Paginated):
     """
     Pagination class optimized for faster counting for DISTINCT queries on large tables.