Performance: absorb instantiate and initialize_with_callbacks into the Base methods.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7380 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Performance: absorb instantiate and initialize_with_callbacks into the Base methods. [Jeremy Kemper]
+
 * Fixed that eager loading queries and with_scope should respect the :group option [DHH]
 
 * Improve performance and functionality of the postgresql adapter.  Closes #8049 [roderickvd]

activerecord/lib/active_record/base.rb

@@ -1095,6 +1095,15 @@ module ActiveRecord #:nodoc:
 
           object.instance_variable_set("@attributes", record)
           object.instance_variable_set("@attributes_cache", Hash.new)
+
+          if object.respond_to_without_attributes?(:after_find)
+            object.send(:callback, :after_find)
+          end
+
+          if object.respond_to_without_attributes?(:after_initialize)
+            object.send(:callback, :after_initialize)
+          end
+
           object
         end
 
@@ -1649,7 +1658,9 @@ module ActiveRecord #:nodoc:
         ensure_proper_type
         self.attributes = attributes unless attributes.nil?
         self.class.send(:scope, :create).each { |att,value| self.send("#{att}=", value) } if self.class.send(:scoped?, :create)
-        yield self if block_given?
+        result = yield self if block_given?
+        callback(:after_initialize) if respond_to_without_attributes?(:after_initialize)
+        result
       end
 
       # A model instance's primary key is always available as model.id

activerecord/lib/active_record/callbacks.rb

@@ -177,16 +177,10 @@ module ActiveRecord
     )
 
     def self.included(base) #:nodoc:
-      base.extend(ClassMethods)
-      base.class_eval do
-        class << self
-          include Observable
-          alias_method_chain :instantiate, :callbacks
-        end
+      base.extend Observable
 
-        [:initialize, :create_or_update, :valid?, :create, :update, :destroy].each do |method|
-          alias_method_chain method, :callbacks
-        end
+      [:create_or_update, :valid?, :create, :update, :destroy].each do |method|
+        base.send :alias_method_chain, method, :callbacks
       end
 
       CALLBACKS.each do |method|
@@ -199,36 +193,12 @@ module ActiveRecord
       end
     end
 
-    module ClassMethods #:nodoc:
-      def instantiate_with_callbacks(record)
-        object = instantiate_without_callbacks(record)
-
-        if object.respond_to_without_attributes?(:after_find)
-          object.send(:callback, :after_find)
-        end
-
-        if object.respond_to_without_attributes?(:after_initialize)
-          object.send(:callback, :after_initialize)
-        end
-
-        object
-      end
-    end
-
     # Is called when the object was instantiated by one of the finders, like <tt>Base.find</tt>.
     #def after_find() end
 
     # Is called after the object has been instantiated by a call to <tt>Base.new</tt>.
     #def after_initialize() end
 
-    def initialize_with_callbacks(attributes = nil) #:nodoc:
-      initialize_without_callbacks(attributes)
-      result = yield self if block_given?
-      callback(:after_initialize) if respond_to_without_attributes?(:after_initialize)
-      result
-    end
-    private :initialize_with_callbacks
-
     # Is called _before_ <tt>Base.save</tt> (regardless of whether it's a +create+ or +update+ save).
     def before_save() end