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Changeset 8415

Timestamp:

12/16/07 16:56:42 (9 months ago)

Author:

david

Message:

Introduce cache_key management and expansion

Files:

r8414	r8415
57	57	def cache(key, options = nil, &block)
58	58	if cache_configured?
59		cache_store.fetch(~~key.to_param~~, options, &block)
	59	cache_store.fetch(ActiveSupport::Cache.expand_cache_key(key, :controller), options, &block)
60	60	else
61	61	yield
…	…
64	64
65	65
66		private
	66	private
67	67	def cache_configured?
68	68	self.class.cache_configured?

r8414	r8415
58	58	# value of url_for on that hash (without the protocol).
59	59	def fragment_cache_key(key)
60		~~key.is_a?(Hash) ? url_for(key).split("://").last : key.to_param~~
	60	ActiveSupport::Cache.expand_cache_key(key.is_a?(Hash) ? url_for(key).split("://").last : key, :fragments)
61	61	end
62	62
…	…
82	82	key = fragment_cache_key(key)
83	83
84		self.class.benchmark "Cached fragment: #{key}" do
	84	self.class.benchmark "Cached fragment miss: #{key}" do
85	85	cache_store.write(key, content, options)
86	86	end
…	…
95	95	key = fragment_cache_key(key)
96	96
97		self.class.benchmark "~~Fragment read~~: #{key}" do
	97	self.class.benchmark "Cached fragment hit: #{key}" do
98	98	cache_store.read(key, options)
99	99	end

r8381	r8415
1948	1948	(id = self.id) ? id.to_s : nil # Be sure to stringify the id for routes
1949	1949	end
	1950
	1951	# Returns a cache key that can be used to identify this record. Examples:
	1952	#
	1953	# Product.new.cache_key # => "products/new"
	1954	# Product.find(5).cache_key # => "products/5" (updated_at not available)
	1955	# Person.find(5).cache_key # => "people/5-20071224150000" (updated_at available)
	1956	def cache_key
	1957	case
	1958	when new_record?
	1959	"#{self.class.name.tableize}/new"
	1960	when self[:updated_at]
	1961	"#{self.class.name.tableize}/#{id}-#{updated_at.to_s(:number)}"
	1962	else
	1963	"#{self.class.name.tableize}/#{id}"
	1964	end
	1965	end
1950	1966
1951	1967	def id_before_type_cast #:nodoc:

r8394	r8415
14	14	store
15	15	end
	16	end
	17
	18	def self.expand_cache_key(key, namespace = nil)
	19	expanded_cache_key = namespace ? "#{namespace}/" : ""
	20
	21	if ENV["RAILS_CACHE_ID"] \|\| ENV["RAILS_APP_VERSION"]
	22	expanded_cache_key << "#{ENV["RAILS_CACHE_ID"] \|\| ENV["RAILS_APP_VERSION"]}/"
	23	end
	24
	25	expanded_cache_key << case
	26	when key.respond_to?(:cache_key)
	27	key.cache_key
	28	when key.is_a?(Array)
	29	key.collect { \|element\| expand_cache_key(element) }.to_param
	30	when key.respond_to?(:to_param)
	31	key.to_param
	32	end
	33
	34	expanded_cache_key
16	35	end
17	36

r8279	r8415
8	8	:long => "%B %e, %Y",
9	9	:db => "%Y-%m-%d",
	10	:number => "%Y%m%d",
10	11	:long_ordinal => lambda { \|date\| date.strftime("%B #{date.day.ordinalize}, %Y") }, # => "April 25th, 2007"
11	12	:rfc822 => "%e %b %Y"