Versioned migrations for DurableObject tables.

Usage

Generate a migration:

mix ecto.gen.migration add_durable_objects

Then call the versioned migration functions:

defmodule MyApp.Repo.Migrations.AddDurableObjects do
  use Ecto.Migration

  def up, do: DurableObject.Migration.up(version: 1)
  def down, do: DurableObject.Migration.down(version: 1)
end

Upgrading

When upgrading to a new version of DurableObject that requires schema changes, generate a new migration and specify both the base version (already applied) and the target version:

mix ecto.gen.migration upgrade_durable_objects_v3

defmodule MyApp.Repo.Migrations.UpgradeDurableObjectsV3 do
  use Ecto.Migration

  def up, do: DurableObject.Migration.up(base: 2, version: 3)
  def down, do: DurableObject.Migration.down(base: 2, version: 3)
end

This runs only version 3's changes, not versions 1-2 which are already applied.