46 lines
1.5 KiB
Ruby
46 lines
1.5 KiB
Ruby
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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
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