+ if Keyword.get(options, :prune_orphaned_activities) do
+ """
+ delete from public.activities
+ where id in (
+ select a.id from public.activities a
+ left join public.objects o on a.data ->> 'object' = o.data ->> 'id'
+ left join public.activities a2 on a.data ->> 'object' = a2.data ->> 'id'
+ left join public.users u on a.data ->> 'object' = u.ap_id
+ -- Only clean up remote activities
+ where not a.local
+ -- For now we only focus on activities with direct links to objects
+ -- e.g. not json objects (in case of embedded objects) or json arrays (in case of multiple objects)
+ and jsonb_typeof(a."data" -> 'object') = 'string'
+ -- Find Activities that don't have existing objects
+ and o.id is null
+ and a2.id is null
+ and u.id is null
+ )
+ """
+ |> Repo.query()
+ end
+