Automatic initialization for Rails 2 and Rails 3

lib/paperclip.rb

@@ -37,6 +37,7 @@ require 'paperclip/interpolations'
 require 'paperclip/style'
 require 'paperclip/attachment'
 require 'paperclip/callback_compatability'
+require 'paperclip/railtie'
 if defined?(Rails.root) && Rails.root
   Dir.glob(File.join(File.expand_path(Rails.root), "lib", "paperclip_processors", "*.rb")).each do |processor|
     require processor
@@ -47,7 +48,7 @@ end
 # documentation for Paperclip::ClassMethods for more useful information.
 module Paperclip
 
-  VERSION = "2.3.2"
+  VERSION = "2.3.2.beta1"
 
   class << self
     # Provides configurability to Paperclip. There are a number of options available, such as:
@@ -71,8 +72,6 @@ module Paperclip
     end
 
     def configure
-      ActiveRecord::Base.send(:include, Paperclip)
-      File.send(:include, Paperclip::Upfile)
       yield(self) if block_given?
     end
 

lib/paperclip/railtie.rb

+require 'paperclip'
+
+module Paperclip
+  if defined? Rails::Railtie
+    require 'rails'
+    class Railtie < Rails::Railtie
+      config.after_initialize do
+        Paperclip::Railtie.insert
+      end
+    end
+  end
+
+  class Railtie
+    def self.insert
+      ActiveRecord::Base.send(:include, Paperclip)
+      File.send(:include, Paperclip::Upfile)
+    end
+  end
+end
+

paperclip.gemspec

 $LOAD_PATH << File.join(File.dirname(__FILE__), 'lib')
 require 'paperclip'
 
-include_files = ["README*", "LICENSE", "Rakefile", "init.rb", "{generators,lib,tasks,test,shoulda_macros}/**/*"].map do |glob|
+include_files = ["README*", "LICENSE", "Rakefile", "init.rb", "{lib,tasks,test,rails,generators,shoulda_macros}/**/*"].map do |glob|
   Dir[glob]
 end.flatten
 exclude_files = ["test/s3.yml", "test/debug.log", "test/paperclip.db", "test/doc", "test/doc/*", "test/pkg", "test/pkg/*", "test/tmp", "test/tmp/*"].map do |glob|

rails/init.rb

+require 'paperclip/railtie'
+Paperclip::Railtie.insert