Hide ActiveRecord-specific stuff in the Railtie

lib/paperclip/railtie.rb

@@ -18,14 +18,18 @@ module Paperclip
 
   class Railtie
     def self.insert
-      ActiveRecord::Base.send(:include, Paperclip::Glue)
-      File.send(:include, Paperclip::Upfile)
+      Paperclip.options[:logger] = Rails.logger
+
+      if defined?(ActiveRecord)
+        ActiveRecord::Base.send(:include, Paperclip::Glue)
+        Paperclip.options[:logger] = ActiveRecord::Base.logger
 
-      Paperclip.options[:logger] = defined?(ActiveRecord) ? ActiveRecord::Base.logger : Rails.logger
+        ActiveRecord::ConnectionAdapters::AbstractAdapter.send(:include, Paperclip::Schema)
+        ActiveRecord::ConnectionAdapters::Table.send(:include, Paperclip::Schema)
+        ActiveRecord::ConnectionAdapters::TableDefinition.send(:include, Paperclip::Schema)
+      end
 
-      ActiveRecord::ConnectionAdapters::AbstractAdapter.send(:include, Paperclip::Schema)
-      ActiveRecord::ConnectionAdapters::Table.send(:include, Paperclip::Schema)
-      ActiveRecord::ConnectionAdapters::TableDefinition.send(:include, Paperclip::Schema)
+      File.send(:include, Paperclip::Upfile)
     end
   end
 end