lib/tasks/paperclip.rake in paperclip-2.4.3 vs lib/tasks/paperclip.rake in paperclip-2.4.4

@@ -71,26 +71,30 @@
           ENV['CLASS'] = klass.to_s
           ENV['ATTACHMENT'] = attachment_name.to_s
           ENV['STYLES'] = missing_styles.join(',')
           Rake::Task['paperclip:refresh:thumbnails'].execute
         end
-      end  
+      end
       Paperclip.save_current_attachments_styles!
     end
   end
 
   desc "Cleans out invalid attachments. Useful after you've added new validations."
   task :clean => :environment do
     klass = Paperclip::Task.obtain_class
     names = Paperclip::Task.obtain_attachments(klass)
     names.each do |name|
       Paperclip.each_instance_with_attachment(klass, name) do |instance|
-        instance.send(name).send(:validate)
-        if instance.send(name).valid?
-          true
-        else
-          instance.send("#{name}=", nil)
-          instance.save
+        unless instance.valid?
+          attributes = %w(file_size file_name content_type).map{ |suffix| "#{name}_#{suffix}".to_sym }
+          if attributes.any?{ |attribute| instance.errors[attribute].present? }
+            instance.send("#{name}=", nil)
+            if Rails.version >= "3.0.0"
+              instance.save(:validate => false)
+            else
+              instance.save(false)
+            end
+          end
         end
       end
     end
   end
 end