Refactoring venue

app/controllers/admin/venues_controller.rb

@@ -0,0 +1,18 @@
+module Admin
+  class VenuesController < Admin::BaseController
+    load_and_authorize_resource :conference, find_by: :short_title
+    load_and_authorize_resource :venue, through: :conference, singleton: true
+
+    def edit; end
+
+    def update
+      if @venue.update_attributes(params[:venue])
+        redirect_to(edit_admin_conference_venue_path(conference_id: @conference.short_title),
+                    notice: 'Venue was successfully updated.')
+      else
+        flash[:error] = "Update venue failed: #{@venue.errors.full_messages.join('. ')}."
+        render :edit
+      end
+    end
+  end
+end