Fix rake task failure on Rails 3.2.3

features/basic_integration.feature

@@ -11,6 +11,7 @@ Feature: Rails integration
   Scenario: Filesystem integration test
     Given I add this snippet to the User model:
       """
+      attr_accessible :name, :attachment
       has_attached_file :attachment, :url => "/system/:attachment/:style/:filename"
       """
     And I start the rails application
@@ -25,6 +26,7 @@ Feature: Rails integration
   Scenario: S3 Integration test
     Given I add this snippet to the User model:
       """
+      attr_accessible :name, :attachment
       has_attached_file :attachment,
                         :storage => :s3,
                         :path => "/:attachment/:style/:filename",

features/rake_tasks.feature

@@ -7,6 +7,7 @@ Feature: Rake tasks
     And I run a migration
     And I add this snippet to the User model:
       """
+      attr_accessible :name, :attachment
       has_attached_file :attachment, :path => ":rails_root/public/system/:attachment/:style/:filename"
       """
 

features/step_definitions/attachment_steps.rb

@@ -10,11 +10,13 @@ end
 World(AttachmentHelpers)
 
 When /^I modify my attachment definition to:$/ do |definition|
-  write_file "app/models/user.rb", <<-FILE
-    class User < ActiveRecord::Base
+  content = in_current_dir { File.read("app/models/user.rb") }
+  content.gsub!(/has_attached_file.+end/m, <<-FILE)
       #{definition}
     end
   FILE
+
+  write_file "app/models/user.rb", content
   in_current_dir { FileUtils.rm_rf ".rbx" }
 end