From 61bcc318c865289d215e8e19618b9414bd07d1e8 Mon Sep 17 00:00:00 2001
From: Josh Susser <josh@hasmanythrough.com>
Date: Sun, 27 Nov 2011 11:22:12 -0800
Subject: use GeneratedFeatureMethods module for associations

---
 .../lib/active_record/associations/builder/association.rb    |  8 +++++---
 .../associations/builder/has_and_belongs_to_many.rb          | 12 ++++++++----
 2 files changed, 13 insertions(+), 7 deletions(-)

(limited to 'activerecord/lib/active_record/associations')

diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb
index 686db0725d..3534e037b7 100644
--- a/activerecord/lib/active_record/associations/builder/association.rb
+++ b/activerecord/lib/active_record/associations/builder/association.rb
@@ -6,7 +6,7 @@ module ActiveRecord::Associations::Builder
     # Set by subclasses
     class_attribute :macro
 
-    attr_reader :model, :name, :options, :reflection, :mixin
+    attr_reader :model, :name, :options, :reflection
 
     def self.build(model, name, options)
       new(model, name, options).build
@@ -14,8 +14,10 @@ module ActiveRecord::Associations::Builder
 
     def initialize(model, name, options)
       @model, @name, @options = model, name, options
-      @mixin = Module.new
-      @model.__send__(:include, @mixin)
+    end
+
+    def mixin
+      @model.generated_feature_methods
     end
 
     def build
diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
index f3391eba13..30fc44b4c2 100644
--- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
+++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
@@ -15,10 +15,14 @@ module ActiveRecord::Associations::Builder
 
       def define_destroy_hook
         name = self.name
-        mixin.send(:define_method, :destroy_associations) do
-          association(name).delete_all
-          super()
-        end
+        model.send(:include, Module.new {
+          class_eval <<-RUBY, __FILE__, __LINE__ + 1
+            def destroy_associations
+              association(#{name.to_sym.inspect}).delete_all
+              super
+            end
+          RUBY
+        })
       end
 
       # TODO: These checks should probably be moved into the Reflection, and we should not be
-- 
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