created items and configured back office ui a bit

app/controllers/items_controller.rb

@@ -0,0 +1,5 @@
+class ItemsController < ApplicationController
+  active_scaffold :"item" do |conf|
+    conf.columns[:unit].form_ui = :select
+  end
+end

app/controllers/media_types_controller.rb

@@ -0,0 +1,4 @@
+class MediaTypesController < ApplicationController
+  active_scaffold :"media_type" do |conf|
+  end
+end

app/controllers/multi_media_descriptions_controller.rb

@@ -0,0 +1,5 @@
+class MultiMediaDescriptionsController < ApplicationController
+  active_scaffold :"multi_media_description" do |conf|
+    conf.columns[:media_type].form_ui = :select
+  end
+end

app/controllers/units_controller.rb

@@ -0,0 +1,4 @@
+class UnitsController < ApplicationController
+  active_scaffold :"unit" do |conf|
+  end
+end