From 70e684a681352e95fb990747ef6dd7183da333a8 Mon Sep 17 00:00:00 2001 From: Jamis Buck Date: Tue, 8 Jan 2013 11:20:47 -0700 Subject: view_cache_dependency API A declarative API for specifying dependencies that affect template cache digest computation. In your controller, specify any of said dependencies: view_cache_dependency { "phone" if using_phone? } When the block is evaluated, the resulting value is included in the cache digest calculation, allowing you to generate different digests for effectively the same template. (Mostly useful if you're mucking with template load paths.) --- actionpack/lib/action_controller/caching.rb | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'actionpack/lib/action_controller/caching.rb') diff --git a/actionpack/lib/action_controller/caching.rb b/actionpack/lib/action_controller/caching.rb index 2892e093af..e31743bcc7 100644 --- a/actionpack/lib/action_controller/caching.rb +++ b/actionpack/lib/action_controller/caching.rb @@ -70,12 +70,30 @@ module ActionController config_accessor :perform_caching self.perform_caching = true if perform_caching.nil? + + class_attribute :_view_cache_dependencies + self._view_cache_dependencies = [] + helper_method :view_cache_dependencies if respond_to?(:helper_method) + end + + module ClassMethods + def view_cache_dependency(&dependency) + self._view_cache_dependencies += [dependency] + end + + def view_cache_dependencies + _view_cache_dependencies.map { |dep| instance_exec &dep }.compact + end end def caching_allowed? request.get? && response.status == 200 end + def view_cache_dependencies + self.class.view_cache_dependencies + end + protected # Convenience accessor. def cache(key, options = {}, &block) -- cgit v1.2.3