Object: Add the ap_id column.

lib/pleroma/object.ex

@@ -19,6 +19,7 @@ defmodule Pleroma.Object do
 
   schema "objects" do
     field(:data, :map)
+    field(:ap_id, :string)
 
     timestamps()
   end

priv/repo/migrations/20191007123056_add_ap_id_column_to_objects.exs

@@ -0,0 +1,11 @@
+defmodule Pleroma.Repo.Migrations.AddApIdColumnToObjects do
+  use Ecto.Migration
+
+  def change do
+    alter table(:objects) do
+      add :ap_id, :string
+    end
+
+    create unique_index(:objects, [:ap_id], concurrently: true)
+  end
+end