From 6129a63764a0ac3c81d7876db5d9a55d1c5c963c Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Thu, 6 Jul 2017 13:58:43 +0200
Subject: Add task to install the migration needed

---
 README.md                     |  1 -
 lib/active_storage/railtie.rb |  2 +-
 lib/tasks/activestorage.rake  | 12 ++++++++++++
 3 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 lib/tasks/activestorage.rake

diff --git a/README.md b/README.md
index b768520756..1f0f30098d 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,6 @@ Add `require "active_storage"` to config/application.rb and create a `config/ini
 - Proper logging
 - Convert MirrorService to use threading
 - Read metadata via Marcel?
-- Copy over migration to app via rake task
 - Add Migrator to copy/move between services
 - Explore direct uploads to cloud
 - Extract VerifiedKeyWithExpiration into Rails as a feature of MessageVerifier
diff --git a/lib/active_storage/railtie.rb b/lib/active_storage/railtie.rb
index bf38d5aff5..15ab8aa096 100644
--- a/lib/active_storage/railtie.rb
+++ b/lib/active_storage/railtie.rb
@@ -1,7 +1,7 @@
 require "rails/railtie"
 
 module ActiveStorage
-  class Railtie < Rails::Railtie # :nodoc:
+  class Engine < Rails::Engine # :nodoc:
     config.active_storage = ActiveSupport::OrderedOptions.new
 
     config.eager_load_namespaces << ActiveStorage
diff --git a/lib/tasks/activestorage.rake b/lib/tasks/activestorage.rake
new file mode 100644
index 0000000000..ff44958151
--- /dev/null
+++ b/lib/tasks/activestorage.rake
@@ -0,0 +1,12 @@
+require "fileutils"
+
+namespace :activestorage do
+  desc "Copy over the migration needed to the application"
+  task :migration do
+    FileUtils.cp \
+      File.expand_path("../../active_storage/migration.rb", __FILE__),
+      Rails.root.join("db/migrate/#{Time.now.utc.strftime("%Y%m%d%H%M%S")}_active_storage_create_tables.rb")
+
+    puts "Now run rails db:migrate to create the tables for Active Storage"
+  end
+end
-- 
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