1 files changed, 10 insertions, 11 deletions
diff --git a/activemodel/lib/active_model/model.rb b/activemodel/lib/active_model/model.rb
index 640024eaa1..dac8d549a7 100644
--- a/activemodel/lib/active_model/model.rb
+++ b/activemodel/lib/active_model/model.rb
@@ -56,13 +56,14 @@ module ActiveModel
   # refer to the specific modules included in <tt>ActiveModel::Model</tt>
   # (see below).
   module Model
-    def self.included(base) #:nodoc:
-      base.class_eval do
-        extend  ActiveModel::Naming
-        extend  ActiveModel::Translation
-        include ActiveModel::Validations
-        include ActiveModel::Conversion
-      end
+    extend ActiveSupport::Concern
+    include ActiveModel::AttributeAssignment
+    include ActiveModel::Validations
+    include ActiveModel::Conversion
+
+    included do
+      extend ActiveModel::Naming
+      extend ActiveModel::Translation
     end
 
     # Initializes a new model with the given +params+.
@@ -75,10 +76,8 @@ module ActiveModel
     #   person = Person.new(name: 'bob', age: '18')
     #   person.name # => "bob"
     #   person.age  # => "18"
-    def initialize(params={})
-      params.each do |attr, value|
-        self.public_send("#{attr}=", value)
-      end if params
+    def initialize(attributes={})
+      assign_attributes(attributes) if attributes
 
       super()
     end