+++ /dev/null
-require 'fileutils'
-require 'uri'
-require 'set'
-
-module ActionController #:nodoc:
- # Caching is a cheap way of speeding up slow applications by keeping the result of calculations, renderings, and database calls
- # around for subsequent requests. Action Controller affords you three approaches in varying levels of granularity: Page, Action, Fragment.
- #
- # You can read more about each approach and the sweeping assistance by clicking the modules below.
- #
- # Note: To turn off all caching and sweeping, set Base.perform_caching = false.
- #
- #
- # == Caching stores
- #
- # All the caching stores from ActiveSupport::Cache is available to be used as backends for Action Controller caching. This setting only
- # affects action and fragment caching as page caching is always written to disk.
- #
- # Configuration examples (MemoryStore is the default):
- #
- # ActionController::Base.cache_store = :memory_store
- # ActionController::Base.cache_store = :file_store, "/path/to/cache/directory"
- # ActionController::Base.cache_store = :drb_store, "druby://localhost:9192"
- # ActionController::Base.cache_store = :mem_cache_store, "localhost"
- # ActionController::Base.cache_store = MyOwnStore.new("parameter")
- module Caching
- autoload :Actions, 'action_controller/caching/actions'
- autoload :Fragments, 'action_controller/caching/fragments'
- autoload :Pages, 'action_controller/caching/pages'
- autoload :Sweeper, 'action_controller/caching/sweeping'
- autoload :Sweeping, 'action_controller/caching/sweeping'
-
- def self.included(base) #:nodoc:
- base.class_eval do
- @@cache_store = nil
- cattr_reader :cache_store
-
- # Defines the storage option for cached fragments
- def self.cache_store=(store_option)
- @@cache_store = ActiveSupport::Cache.lookup_store(store_option)
- end
-
- include Pages, Actions, Fragments
- include Sweeping if defined?(ActiveRecord)
-
- @@perform_caching = true
- cattr_accessor :perform_caching
-
- def self.cache_configured?
- perform_caching && cache_store
- end
- end
- end
-
- protected
- # Convenience accessor
- def cache(key, options = {}, &block)
- if cache_configured?
- cache_store.fetch(ActiveSupport::Cache.expand_cache_key(key, :controller), options, &block)
- else
- yield
- end
- end
-
- private
- def cache_configured?
- self.class.cache_configured?
- end
- end
-end