test/dummy/app/controllers/articles_controller.rb in paper_trail-4.2.0 vs test/dummy/app/controllers/articles_controller.rb in paper_trail-5.0.0

@@ -1,17 +1,20 @@
 class ArticlesController < ApplicationController
   def create
-    if PaperTrail.active_record_protected_attributes?
-      @article = Article.create params[:article]
-    else
-      @article = Article.create params.require(:article).permit!
-    end
+    @article = Article.create article_params
     head :ok
   end
 
   def current_user
-    'foobar'.tap do |string|
-      # Invoking `id` returns the `object_id` value in Ruby18 by default
-      string.class_eval { undef_method(:id) } if RUBY_VERSION < '1.9'
+    "foobar"
+  end
+
+  private
+
+  def article_params
+    if PaperTrail.active_record_protected_attributes?
+      params[:article]
+    else
+      params.require(:article).permit!
     end
   end
 end