add quick data migration utility for Works

Author: zkat

lib/banchan/works/works.ex

@@ -536,4 +536,15 @@ defmodule Banchan.Works do
   def delete_work(%Work{} = work) do
     Repo.delete(work)
   end
+
+  ## Data Migration
+
+  @doc """
+  If site was made pre-Works, this needs to be run to bring over all the
+  legacy gallery/portfolio images.
+  """
+  def migrate_from_legacy(%User{} = actor) do
+    :ok = Workers.MigratePortfolioImages.queue_migration(actor)
+    :ok = Workers.MigrateGalleryImages.queue_migration(actor)
+  end
 end