defmodule <%= @module_name %>.Repo.Migrations.<%= @schema_name %>CustomerColumns do
  use Ecto.Migration

  def change do
    alter table(:<%= @table_name %>) do
      add :stripe_id, :string
      add :payment_id, :string, null: true
      add :payment_type, :string, null: true
      add :payment_last_four, :string, size: 4, null: true
    end

    create unique_index(:<%= @table_name %>, [:stripe_id])
  end
end