1 files changed, 46 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/caching.rb b/actionpack/lib/action_controller/caching.rb
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+++ b/actionpack/lib/action_controller/caching.rb
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+# frozen_string_literal: true
+
+module ActionController
+  # \Caching is a cheap way of speeding up slow applications by keeping the result of
+  # calculations, renderings, and database calls around for subsequent requests.
+  #
+  # You can read more about each approach by clicking the modules below.
+  #
+  # Note: To turn off all caching provided by Action Controller, set
+  #   config.action_controller.perform_caching = false
+  #
+  # == \Caching stores
+  #
+  # All the caching stores from ActiveSupport::Cache are available to be used as backends
+  # for Action Controller caching.
+  #
+  # Configuration examples (FileStore is the default):
+  #
+  #   config.action_controller.cache_store = :memory_store
+  #   config.action_controller.cache_store = :file_store, '/path/to/cache/directory'
+  #   config.action_controller.cache_store = :mem_cache_store, 'localhost'
+  #   config.action_controller.cache_store = :mem_cache_store, Memcached::Rails.new('localhost:11211')
+  #   config.action_controller.cache_store = MyOwnStore.new('parameter')
+  module Caching
+    extend ActiveSupport::Autoload
+    extend ActiveSupport::Concern
+
+    included do
+      include AbstractController::Caching
+    end
+
+    private
+
+      def instrument_payload(key)
+        {
+          controller: controller_name,
+          action: action_name,
+          key: key
+        }
+      end
+
+      def instrument_name
+        "action_controller".freeze
+      end
+  end
+end