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Viewing changes to vendor/rails/actionpack/lib/action_controller/caching/sweeper.rb

  • Committer: Michael Forrest
  • Date: 2010-10-15 16:28:50 UTC
  • Revision ID: michael.forrest@canonical.com-20101015162850-tj2vchanv0kr0dun
refroze gems

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vendor/rails/actionpack/lib/action_controller/caching/sweeper.rb
 
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require 'active_record'
 
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module ActionController #:nodoc:
 
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  module Caching
 
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    class Sweeper < ActiveRecord::Observer #:nodoc:
 
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      attr_accessor :controller
 
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      def before(controller)
 
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        self.controller = controller
 
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        callback(:before) if controller.perform_caching
 
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      end
 
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      def after(controller)
 
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        callback(:after) if controller.perform_caching
 
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        # Clean up, so that the controller can be collected after this request
 
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        self.controller = nil
 
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      end
 
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      protected
 
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        # gets the action cache path for the given options.
 
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        def action_path_for(options)
 
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          ActionController::Caching::Actions::ActionCachePath.path_for(controller, options)
 
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        end
 
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        # Retrieve instance variables set in the controller.
 
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        def assigns(key)
 
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          controller.instance_variable_get("@#{key}")
 
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        end
 
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      private
 
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        def callback(timing)
 
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          controller_callback_method_name = "#{timing}_#{controller.controller_name.underscore}"
 
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          action_callback_method_name     = "#{controller_callback_method_name}_#{controller.action_name}"
 
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          __send__(controller_callback_method_name) if respond_to?(controller_callback_method_name, true)
 
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          __send__(action_callback_method_name)     if respond_to?(action_callback_method_name, true)
 
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        end
 
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        def method_missing(method, *arguments, &block)
 
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          return if @controller.nil?
 
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          @controller.__send__(method, *arguments, &block)
 
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        end
 
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    end
 
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  end
 
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end