Ensure delete cascades on activity delete

lib/pleroma/object.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Object do
 
   alias Pleroma.Activity
   alias Pleroma.Config
+  alias Pleroma.Delivery
   alias Pleroma.Hashtag
   alias Pleroma.Object
   alias Pleroma.Object.Fetcher
@@ -30,6 +31,7 @@ defmodule Pleroma.Object do
     field(:data, :map)
 
     many_to_many(:hashtags, Hashtag, join_through: "hashtags_objects", on_replace: :delete)
+    has_many(:deliveries, Delivery, on_delete: :delete_all)
 
     timestamps()
   end

priv/repo/migrations/20221128224527_delete_deliveries_on_object_delete.exs

@@ -0,0 +1,16 @@
+defmodule Pleroma.Repo.Migrations.DeleteDeliveriesOnObjectDelete do
+  use Ecto.Migration
+  def up do
+    drop constraint(:deliveries, "deliveries_object_id_fkey")
+    alter table(:deliveries) do
+        modify :object_id, references(:objects, type: :id, on_delete: :delete_all), null: false
+    end
+  end
+
+  def down do
+    drop constraint(:deliveries, "deliveries_object_id_fkey")
+    alter table(:deliveries) do
+        modify :object_id, references(:objects, type: :id), null: false
+    end
+  end
+end

priv/repo/migrations/20221129105331_add_notification_activity_id_index.exs

@@ -0,0 +1,7 @@
+defmodule Pleroma.Repo.Migrations.AddNotificationActivityIdIndex do
+  use Ecto.Migration
+
+  def change do
+    create(index(:notifications, [:activity_id]))
+  end
+end

priv/repo/migrations/20221129110627_add_bookmarks_activity_id_index.exs

@@ -0,0 +1,7 @@
+defmodule Pleroma.Repo.Migrations.AddBookmarksActivityIdIndex do
+  use Ecto.Migration
+
+  def change do
+    create(index(:bookmarks, [:activity_id]))
+  end
+end

priv/repo/migrations/20221129110727_add_report_notes_activity_id_index.exs

@@ -0,0 +1,7 @@
+defmodule Pleroma.Repo.Migrations.AddReportNotesActivityIdIndex do
+  use Ecto.Migration
+
+  def change do
+    create(index(:report_notes, [:activity_id]))
+  end
+end

priv/repo/migrations/20221129112022_add_cascade_to_report_notes_on_activity_delete.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.AddCascadeToReportNotesOnActivityDelete do
+  use Ecto.Migration
+
+  def up do
+    drop constraint(:report_notes, "report_notes_activity_id_fkey")
+    alter table(:report_notes) do
+        modify :activity_id, references(:activities, type: :uuid, on_delete: :delete_all)
+    end
+  end
+
+  def down do
+    drop constraint(:report_notes, "report_notes_activity_id_fkey")
+    alter table(:report_notes) do
+        modify :activity_id, references(:activities, type: :uuid)
+    end
+  end
+end