Update actor

lib/nulla/models/actor.ex

@@ -90,6 +90,8 @@ defmodule Nulla.Models.Actor do
       :publicKey,
       :endpoints
     ])
+    |> unique_constraint([:preferredUsername, :domain])
+    |> unique_constraint(:ap_id)
   end
 
   def create_actor(attrs) when is_map(attrs) do

priv/repo/migrations/20250615130714_create_actors.exs

@@ -31,5 +31,8 @@ defmodule Nulla.Repo.Migrations.CreateActors do
       add :vcard_bday, :date
       add :vcard_Address, :string
     end
+
+    create unique_index(:actors, [:preferredUsername, :domain])
+    create unique_index(:actors, [:ap_id])
   end
 end