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diff --git a/railties/doc/guides/creating_plugins/acts_as_yaffle.txt b/railties/doc/guides/creating_plugins/acts_as_yaffle.txt
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-== Add an `acts_as_yaffle` method to ActiveRecord ==
-
-A common pattern in plugins is to add a method called `acts_as_something` to models.  In this case, you want to write a method called `acts_as_yaffle` that adds a `squawk` method to your models.
-
-To keep things clean, create a new test file called 'acts_as_yaffle_test.rb' in your plugin's test directory and require your test helper.
-
-[source, ruby]
-------------------------------------------------------
-# File: vendor/plugins/yaffle/test/acts_as_yaffle_test.rb
-
-require File.dirname(__FILE__) + '/test_helper.rb'
-
-class Hickwall < ActiveRecord::Base
-  acts_as_yaffle
-end
-
-class ActsAsYaffleTest < Test::Unit::TestCase
-end
-------------------------------------------------------
-
-[source, ruby]
-------------------------------------------------------
-# File: vendor/plugins/lib/acts_as_yaffle.rb
-
-module Yaffle
-end
-------------------------------------------------------
-
-One of the most common plugin patterns for `acts_as_yaffle` plugins is to structure your file like so:
-
-[source, ruby]
-------------------------------------------------------
-module Yaffle
-  def self.included(base)
-    base.send :extend, ClassMethods
-  end
-
-  module ClassMethods
-    # any method placed here will apply to classes, like Hickwall
-    def acts_as_something
-      send :include, InstanceMethods
-    end
-  end
-
-  module InstanceMethods
-    # any method placed here will apply to instaces, like @hickwall
-  end
-end
-------------------------------------------------------
-
-With structure you can easily separate the methods that will be used for the class (like `Hickwall.some_method`) and the instance (like `@hickwell.some_method`).
-
-Let's add class method named `acts_as_yaffle` - testing it out first.  You already defined the ActiveRecord models in your test helper, so if you run tests now they will fail.
-
-Back in your `acts_as_yaffle` file, update ClassMethods like so:
-
-[source, ruby]
-------------------------------------------------------
-module ClassMethods
-  def acts_as_yaffle(options = {})
-    send :include, InstanceMethods
-  end
-end
-------------------------------------------------------
-
-Now that test should pass.  Since your plugin is going to work with field names, you need to allow people to define the field names, in case there is a naming conflict.  You can write a few simple tests for this:
-
-[source, ruby]
-------------------------------------------------------
-# File: vendor/plugins/yaffle/test/acts_as_yaffle_test.rb
-
-require File.dirname(__FILE__) + '/test_helper.rb'
-
-class ActsAsYaffleTest < Test::Unit::TestCase
-  def test_a_hickwalls_yaffle_text_field_should_be_last_squawk
-    assert_equal "last_squawk", Hickwall.yaffle_text_field
-  end
-
-  def test_a_hickwalls_yaffle_date_field_should_be_last_squawked_at
-    assert_equal "last_squawked_at", Hickwall.yaffle_date_field
-  end
-
-  def test_a_wickwalls_yaffle_text_field_should_be_last_tweet
-    assert_equal "last_tweet", Wickwall.yaffle_text_field
-  end
-
-  def test_a_wickwalls_yaffle_date_field_should_be_last_tweeted_at
-    assert_equal "last_tweeted_at", Wickwall.yaffle_date_field
-  end
-end
-------------------------------------------------------
-
-To make these tests pass, you could modify your `acts_as_yaffle` file like so:
-
-[source, ruby]
-------------------------------------------------------
-# File: vendor/plugins/yaffle/lib/acts_as_yaffle.rb
-
-module Yaffle
-  def self.included(base)
-    base.send :extend, ClassMethods
-  end
-
-  module ClassMethods
-    def acts_as_yaffle(options = {})
-      cattr_accessor :yaffle_text_field, :yaffle_date_field
-      self.yaffle_text_field = (options[:yaffle_text_field] || :last_squawk).to_s
-      self.yaffle_date_field = (options[:yaffle_date_field] || :last_squawked_at).to_s
-      send :include, InstanceMethods
-    end
-  end
-
-  module InstanceMethods
-  end
-end
-------------------------------------------------------
-
-Now you can add tests for the instance methods, and the instance method itself:
-
-[source, ruby]
-------------------------------------------------------
-# File: vendor/plugins/yaffle/test/acts_as_yaffle_test.rb
-
-require File.dirname(__FILE__) + '/test_helper.rb'
-
-class ActsAsYaffleTest < Test::Unit::TestCase
-
-  def test_a_hickwalls_yaffle_text_field_should_be_last_squawk
-    assert_equal "last_squawk", Hickwall.yaffle_text_field
-  end
-  def test_a_hickwalls_yaffle_date_field_should_be_last_squawked_at
-    assert_equal "last_squawked_at", Hickwall.yaffle_date_field
-  end
-
-  def test_a_wickwalls_yaffle_text_field_should_be_last_squawk
-    assert_equal "last_tweet", Wickwall.yaffle_text_field
-  end
-  def test_a_wickwalls_yaffle_date_field_should_be_last_squawked_at
-    assert_equal "last_tweeted_at", Wickwall.yaffle_date_field
-  end
-
-  def test_hickwalls_squawk_should_populate_last_squawk
-    hickwall = Hickwall.new
-    hickwall.squawk("Hello World")
-    assert_equal "squawk! Hello World", hickwall.last_squawk
-  end
-  def test_hickwalls_squawk_should_populate_last_squawked_at
-    hickwall = Hickwall.new
-    hickwall.squawk("Hello World")
-    assert_equal Date.today, hickwall.last_squawked_at
-  end
-
-  def test_wickwalls_squawk_should_populate_last_tweet
-    wickwall = Wickwall.new
-    wickwall.squawk("Hello World")
-    assert_equal "squawk! Hello World", wickwall.last_tweet
-  end
-  def test_wickwalls_squawk_should_populate_last_tweeted_at
-    wickwall = Wickwall.new
-    wickwall.squawk("Hello World")
-    assert_equal Date.today, wickwall.last_tweeted_at
-  end
-end
-------------------------------------------------------
-
-[source, ruby]
-------------------------------------------------------
-# File: vendor/plugins/yaffle/lib/acts_as_yaffle.rb
-
-module Yaffle
-  def self.included(base)
-    base.send :extend, ClassMethods
-  end
-
-  module ClassMethods
-    def acts_as_yaffle(options = {})
-      cattr_accessor :yaffle_text_field, :yaffle_date_field
-      self.yaffle_text_field = (options[:yaffle_text_field] || :last_squawk).to_s
-      self.yaffle_date_field = (options[:yaffle_date_field] || :last_squawked_at).to_s
-      send :include, InstanceMethods
-    end
-  end
-
-  module InstanceMethods
-    def squawk(string)
-      write_attribute(self.class.yaffle_text_field, string.to_squawk)
-      write_attribute(self.class.yaffle_date_field, Date.today)
-    end
-  end
-end
-------------------------------------------------------
-
-Note the use of `write_attribute` to write to the field in model.