mobilizon/priv/repo/migrations/20180709154152_allow_multiple_accounts_for_user.exs

defmodule Eventos.Repo.Migrations.AllowMultipleAccountsForUser do
  use Ecto.Migration

  def up do
    alter table(:actors) do
      add :user_id, references(:users, on_delete: :delete_all), null: true
    end

    alter table(:users) do
      remove :actor_id
    end
  end

  def down do
    alter table(:users) do
      add :actor_id, references(:actors, on_delete: :delete_all), null: false
    end

    alter table(:actors) do
      remove :user_id
    end
  end
end