diff options
| -rw-r--r-- | lib/pleroma/activity.ex | 2 | ||||
| -rw-r--r-- | lib/pleroma/web/activity_pub/activity_pub.ex | 120 |
2 files changed, 100 insertions, 22 deletions
diff --git a/lib/pleroma/activity.ex b/lib/pleroma/activity.ex index 9d970a808..df216e4de 100644 --- a/lib/pleroma/activity.ex +++ b/lib/pleroma/activity.ex @@ -113,6 +113,7 @@ defmodule Pleroma.Activity do from([a] in query, left_join: b in Bookmark, on: b.user_id == ^user.id and b.activity_id == a.id, + as: :bookmark, preload: [bookmark: b] ) end @@ -123,6 +124,7 @@ defmodule Pleroma.Activity do from([a] in query, left_join: r in ReportNote, on: a.id == r.activity_id, + as: :report_note, preload: [report_notes: r] ) end diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex index 626cad336..339843330 100644 --- a/lib/pleroma/web/activity_pub/activity_pub.ex +++ b/lib/pleroma/web/activity_pub/activity_pub.ex @@ -713,22 +713,92 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp restrict_tag(query, _), do: query + defp restrict_hashtag(query, opts) do + [tag_any, tag_all, tag_reject] = + [:tag, :tag_all, :tag_reject] + |> Enum.map(&opts[&1]) + |> Enum.map(&List.wrap(&1)) + + has_conditions = Enum.any?([tag_any, tag_all, tag_reject], &Enum.any?(&1)) + + cond do + !has_conditions -> + query + + opts[:skip_preload] -> + raise_on_missing_preload() + + true -> + query + |> group_by_all_bindings() + |> join(:left, [_activity, object], hashtag in assoc(object, :hashtags), as: :hashtag) + |> maybe_restrict_hashtag_any(tag_any) + |> maybe_restrict_hashtag_all(tag_all) + |> maybe_restrict_hashtag_reject_any(tag_reject) + end + end + + # Groups by all bindings to allow aggregation on hashtags + defp group_by_all_bindings(query) do + # Expecting named bindings: :object, :bookmark, :thread_mute, :report_note + cond do + Enum.count(query.aliases) == 4 -> + from([a, o, b3, b4, b5] in query, group_by: [a.id, o.id, b3.id, b4.id, b5.id]) + + Enum.count(query.aliases) == 3 -> + from([a, o, b3, b4] in query, group_by: [a.id, o.id, b3.id, b4.id]) + + Enum.count(query.aliases) == 2 -> + from([a, o, b3] in query, group_by: [a.id, o.id, b3.id]) + + true -> + from([a, o] in query, group_by: [a.id, o.id]) + end + end + + defp maybe_restrict_hashtag_any(query, []) do + query + end + + defp maybe_restrict_hashtag_any(query, tags) do + having( + query, + [hashtag: hashtag], + fragment("array_agg(?) && (?)", hashtag.name, ^tags) + ) + end + + defp maybe_restrict_hashtag_all(query, []) do + query + end + + defp maybe_restrict_hashtag_all(query, tags) do + having( + query, + [hashtag: hashtag], + fragment("array_agg(?) @> (?)", hashtag.name, ^tags) + ) + end + + defp maybe_restrict_hashtag_reject_any(query, []) do + query + end + + defp maybe_restrict_hashtag_reject_any(query, tags) do + having( + query, + [hashtag: hashtag], + fragment("not(array_agg(?) && (?))", hashtag.name, ^tags) + ) + end + defp restrict_hashtag_reject_any(_query, %{tag_reject: _tag_reject, skip_preload: true}) do raise_on_missing_preload() end defp restrict_hashtag_reject_any(query, %{tag_reject: tags_reject}) when is_list(tags_reject) do - if has_named_binding?(query, :thread_mute) do - from( - [activity, object, thread_mute] in query, - group_by: [activity.id, object.id, thread_mute.id] - ) - else - from( - [activity, object] in query, - group_by: [activity.id, object.id] - ) - end + query + |> group_by_all_bindings() |> join(:left, [_activity, object], hashtag in assoc(object, :hashtags), as: :hashtag) |> having( [hashtag: hashtag], @@ -1167,7 +1237,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do query = Activity - |> distinct([a], true) |> maybe_preload_objects(opts) |> maybe_preload_bookmarks(opts) |> maybe_preload_report_notes(opts) @@ -1199,16 +1268,23 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do |> exclude_invisible_actors(opts) |> exclude_visibility(opts) - if Config.object_embedded_hashtags?() do - query - |> restrict_tag(opts) - |> restrict_tag_reject(opts) - |> restrict_tag_all(opts) - else - query - |> restrict_hashtag_any(opts) - |> restrict_hashtag_all(opts) - |> restrict_hashtag_reject_any(opts) + cond do + Config.object_embedded_hashtags?() -> + query + |> restrict_tag(opts) + |> restrict_tag_reject(opts) + |> restrict_tag_all(opts) + + # TODO: benchmark (initial approach preferring non-aggregate ops when possible) + Config.get([:instance, :improved_hashtag_timeline]) == :join -> + query + |> distinct([activity], true) + |> restrict_hashtag_any(opts) + |> restrict_hashtag_all(opts) + |> restrict_hashtag_reject_any(opts) + + true -> + restrict_hashtag(query, opts) end end |