Added preliminary version of render_component

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@697 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller.rb

@@ -47,6 +47,10 @@
 require 'action_controller/cookies'
 require 'action_controller/cgi_process'
 require 'action_controller/caching'
+require 'action_controller/components'
+
+require 'action_view'
+ActionController::Base.template_class = ActionView::Base
 
 ActionController::Base.class_eval do
   include ActionController::Filters
@@ -60,7 +64,5 @@
   include ActionController::Cookies
   include ActionController::Session
   include ActionController::Caching
+  include ActionController::Components
 end
-
-require 'action_view'
-ActionController::Base.template_class = ActionView::Base
\ No newline at end of file

actionpack/lib/action_controller/components.rb

+module ActionController #:nodoc:
+  module Components #:nodoc:
+    def self.append_features(base)
+      super
+      base.helper { def render_component(options) @controller.send(:component_response, options).body end }
+    end
+
+    protected
+      def render_component(options = {}) #:doc:
+        response = component_response(options)
+        render_text(response.body, response.response_code)
+      end
+  
+    private
+      def component_response(options)
+        component_class(options).process(component_request(options), @response)
+      end
+    
+      def component_class(options)
+        options[:controller] ? (options[:controller].camelize + "Controller").constantize : self
+      end
+      
+      def component_request(options)
+        component_request = @request.dup
+        component_request.send(:instance_variable_set, :@parameters, options[:params].merge({ "controller" => options[:controller], "action" => options[:action] }))
+        component_request
+      end
+  end
+end