module ActionController::Caching
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, 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')
Public Instance Methods
view_cache_dependencies()
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# File lib/action_controller/caching.rb, line 75 def view_cache_dependencies self.class._view_cache_dependencies.map { |dep| instance_exec(&dep) }.compact end
Protected Instance Methods
cache(key, options = {}) { || ... }
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Convenience accessor.
# File lib/action_controller/caching.rb, line 81 def cache(key, options = {}, &block) if cache_configured? cache_store.fetch(ActiveSupport::Cache.expand_cache_key(key, :controller), options, &block) else yield end end