Revert "Field updated_at from Galaxy v3 Collections endpoint using la…

…test instead of highest version"

This reverts commit c43b89c.

https://pulp.plan.io/issues/7990
closes #7990

CHANGES/7990.bugfix

@@ -0,0 +1 @@
+Field ``updated_at`` from Galaxy v3 Collections endpoint using highest version

pulp_ansible/app/galaxy/v3/serializers.py

@@ -52,10 +52,8 @@ def get_created_at(self, obj):
 
     def get_updated_at(self, obj):
         """Get the timestamp of the highest version CollectionVersion's created timestamp."""
-        if obj.repo_version_added_at and obj.repo_version_removed_at:
-            return max(obj.repo_version_added_at, obj.repo_version_removed_at)
-
-        return obj.repo_version_added_at or obj.repo_version_removed_at
+        collection = self.context["highest_versions"][obj.pk]
+        return collection.pulp_created
 
     @extend_schema_field(OpenApiTypes.OBJECT)
     def get_highest_version(self, obj):

pulp_ansible/app/galaxy/v3/views.py

@@ -3,7 +3,7 @@
 from gettext import gettext as _
 import semantic_version
 
-from django.db.models import Exists, OuterRef, Subquery, Max
+from django.db.models import Exists, OuterRef
 from django.shortcuts import get_object_or_404
 from django.utils.datastructures import MultiValueDictKeyError
 from django.utils.dateparse import parse_datetime
@@ -17,7 +17,7 @@
 from rest_framework import viewsets
 
 from pulpcore.plugin.exceptions import DigestValidationError
-from pulpcore.plugin.models import PulpTemporaryFile, Content, ContentArtifact, RepositoryVersion
+from pulpcore.plugin.models import PulpTemporaryFile, Content, ContentArtifact
 from pulpcore.plugin.serializers import AsyncOperationResponseSerializer
 
 from pulp_ansible.app.galaxy.v3.exceptions import ExceptionHandlerMixin
@@ -153,23 +153,8 @@ def get_queryset(self):
         deprecated_query = AnsibleCollectionDeprecated.objects.filter(
             collection=OuterRef("pk"), repository_version=repo_version
         )
-        added_repo_version_query = RepositoryVersion.objects.filter(
-            repository=repo_version.repository,
-            complete=True,
-            added_memberships__content__in=OuterRef("versions__pk"),
-        ).values("pulp_last_updated")
-        removed_repo_version_query = RepositoryVersion.objects.filter(
-            repository=repo_version.repository,
-            complete=True,
-            removed_memberships__content__in=OuterRef("versions__pk"),
-        ).values("pulp_last_updated")
-
-        collections_qs_annotated = Collection.objects.annotate(
-            repo_version_added_at=Max(Subquery(added_repo_version_query)),
-            repo_version_removed_at=Max(Subquery(removed_repo_version_query)),
-            deprecated=Exists(deprecated_query),
-        )
-        collections = collections_qs_annotated.filter(versions__in=repo_version.content).distinct()
+        collections = Collection.objects.filter(versions__in=repo_version.content).distinct()
+        collections = collections.annotate(deprecated=Exists(deprecated_query))
 
         versions_qs = CollectionVersion.objects.filter(pk__in=repo_version.content).values_list(
             "collection_id",