Move Active Record extension code to kaminari-activerecord gem

kaminari-activerecord/lib/kaminari/activerecord.rb

@@ -1,4 +1,5 @@
 require "kaminari/activerecord/version"
+require 'kaminari/activerecord/railtie'
 
 module Kaminari
   module Activerecord

kaminari-activerecord/lib/kaminari/activerecord/active_record_extension.rb

@@ -1,4 +1,4 @@
-require 'kaminari/models/active_record_model_extension'
+require 'kaminari/activerecord/active_record_model_extension'
 
 module Kaminari
   module ActiveRecordExtension

kaminari-activerecord/lib/kaminari/activerecord/active_record_model_extension.rb

@@ -1,4 +1,4 @@
-require 'kaminari/models/active_record_relation_methods'
+require 'kaminari/activerecord/active_record_relation_methods'
 
 module Kaminari
   module ActiveRecordModelExtension

kaminari-activerecord/lib/kaminari/activerecord/railtie.rb

@@ -0,0 +1,12 @@
+module Kaminari
+  module ActiveRecord
+    class Railtie < ::Rails::Railtie #:nodoc:
+      initializer 'kaminari-activerecord' do
+        ActiveSupport.on_load :active_record do
+          require 'kaminari/activerecord/active_record_extension'
+          ::ActiveRecord::Base.send :include, Kaminari::ActiveRecordExtension
+        end
+      end
+    end
+  end
+end

lib/kaminari/hooks.rb

@@ -1,11 +1,6 @@
 module Kaminari
   class Hooks
     def self.init
-      ActiveSupport.on_load(:active_record) do
-        require 'kaminari/models/active_record_extension'
-        ::ActiveRecord::Base.send :include, Kaminari::ActiveRecordExtension
-      end
-
       require 'kaminari/models/array_extension'
     end
   end