Closes #16388: Move change logging resources from extras to core (#16545)

* Initial work on #16388

* Misc cleanup

netbox/core/graphql/filters.py

@@ -6,6 +6,7 @@ from netbox.graphql.filter_mixins import autotype_decorator, BaseFilterMixin
 __all__ = (
     'DataFileFilter',
     'DataSourceFilter',
+    'ObjectChangeFilter',
 )
 
 
@@ -19,3 +20,9 @@ class DataFileFilter(BaseFilterMixin):
 @autotype_decorator(filtersets.DataSourceFilterSet)
 class DataSourceFilter(BaseFilterMixin):
     pass
+
+
+@strawberry_django.filter(models.ObjectChange, lookups=True)
+@autotype_decorator(filtersets.ObjectChangeFilterSet)
+class ObjectChangeFilter(BaseFilterMixin):
+    pass

netbox/core/graphql/mixins.py

@@ -0,0 +1,24 @@
+from typing import Annotated, List
+
+import strawberry
+import strawberry_django
+from django.contrib.contenttypes.models import ContentType
+
+from core.models import ObjectChange
+
+__all__ = (
+    'ChangelogMixin',
+)
+
+
+@strawberry.type
+class ChangelogMixin:
+
+    @strawberry_django.field
+    def changelog(self, info) -> List[Annotated["ObjectChangeType", strawberry.lazy('.types')]]:
+        content_type = ContentType.objects.get_for_model(self)
+        object_changes = ObjectChange.objects.filter(
+            changed_object_type=content_type,
+            changed_object_id=self.pk
+        )
+        return object_changes.restrict(info.context.request.user, 'view')

netbox/core/graphql/types.py

@@ -10,6 +10,7 @@ from .filters import *
 __all__ = (
     'DataFileType',
     'DataSourceType',
+    'ObjectChangeType',
 )
 
 
@@ -30,3 +31,12 @@ class DataFileType(BaseObjectType):
 class DataSourceType(NetBoxObjectType):
 
     datafiles: List[Annotated["DataFileType", strawberry.lazy('core.graphql.types')]]
+
+
+@strawberry_django.type(
+    models.ObjectChange,
+    fields='__all__',
+    filters=ObjectChangeFilter
+)
+class ObjectChangeType(BaseObjectType):
+    pass