Removed after_find and after_initialize callbacks.

This removed about 30% of the time spent in finding documents. Big time improvement for something that is not worth much.

lib/mongo_mapper/plugins/callbacks.rb

@@ -5,21 +5,6 @@ module Callbacks
       extend ActiveSupport::Concern
 
       module InstanceMethods
-        def initialize(attrs = {})
-          super.tap { run_callbacks(:initialize) }
-        end
-
-        def initialize_from_database(attrs={})
-          super.tap do
-            run_callbacks(:find)
-            run_callbacks(:initialize)
-          end
-        end
-
-        def initialize_copy(other)
-          super.tap { run_callbacks(:initialize) }
-        end
-
         def valid?(context = nil)
           context ||= (new_record? ? :create : :update)
           super(context) && errors.empty?

lib/mongo_mapper/plugins/embedded_callbacks.rb

@@ -8,8 +8,7 @@ module EmbeddedCallbacks
         extend  ::ActiveModel::Callbacks
         include ::ActiveModel::Validations::Callbacks
 
-        define_model_callbacks :validation, :save, :create, :update, :destroy, :only => [ :before, :after ]
-        define_model_callbacks :initialize, :find, :only => :after
+        define_model_callbacks :validation, :save, :create, :update, :destroy, :only => [:before, :after]
       end
 
       module InstanceMethods

test/functional/test_callbacks.rb

@@ -4,8 +4,7 @@ module CallbacksSupport
   def self.included base
     base.key :name, String
 
-    [ :after_find,        :after_initialize,
-      :before_validation, :after_validation,
+    [ :before_validation, :after_validation,
       :before_create,     :after_create,
       :before_update,     :after_update,
       :before_save,       :after_save,
@@ -29,7 +28,6 @@ def clear_history
 
 class CallbacksTest < Test::Unit::TestCase
   CreateCallbackOrder = [
-    :after_initialize,
     :before_validation,
     :after_validation,
     :before_save,
@@ -52,22 +50,6 @@ class CallbacksTest < Test::Unit::TestCase
       @document = Doc { include CallbacksSupport }
     end
 
-    should "run after_initialize" do
-      doc = @document.new
-      doc.history.should == [:after_initialize]
-    end
-
-    should "run callbacks on find" do
-      doc = @document.create(:name => 'John Nunemaker')
-      @document.find!(doc.id).history.should == [:after_find, :after_initialize]
-    end
-
-    should "run after_initialize when cloning an object" do
-      doc = @document.create(:name => 'John Nunemaker')
-      doc.clear_history
-      doc.dup.history.should == [:after_initialize]
-    end
-
     should "get the order right for creating documents" do
       doc = @document.create(:name => 'John Nunemaker')
       doc.history.should == CreateCallbackOrder