Update to make Author has many AuthorRoles.

priv/repo/migrations/20250311182445_update_author_and_author_role_relationship.exs

@@ -0,0 +1,43 @@
+defmodule DecentralisedBookIndex.Repo.Migrations.UpdateAuthorAndAuthorRoleRelationship do
+  @moduledoc """
+  Updates resources based on their most recent snapshots.
+
+  This file was autogenerated with `mix ash_postgres.generate_migrations`
+  """
+
+  use Ecto.Migration
+
+  def up do
+    alter table(:authors) do
+      remove :author_role_id
+    end
+
+    alter table(:author_role) do
+      add :author_id,
+          references(:authors,
+            column: :id,
+            name: "author_role_author_id_fkey",
+            type: :uuid,
+            prefix: "public"
+          )
+    end
+  end
+
+  def down do
+    drop constraint(:author_role, "author_role_author_id_fkey")
+
+    alter table(:author_role) do
+      remove :author_id
+    end
+
+    alter table(:authors) do
+      add :author_role_id,
+          references(:author_role,
+            column: :id,
+            name: "authors_author_role_id_fkey",
+            type: :uuid,
+            prefix: "public"
+          )
+    end
+  end
+end