diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/cache_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/cache_helper.rb | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/helpers/cache_helper.rb b/actionpack/lib/action_view/helpers/cache_helper.rb index db920ae7a4..8693f4f0e4 100644 --- a/actionpack/lib/action_view/helpers/cache_helper.rb +++ b/actionpack/lib/action_view/helpers/cache_helper.rb @@ -110,8 +110,15 @@ module ActionView # <%= some_helper_method(person) %> # # Now all you'll have to do is change that timestamp when the helper method changes. + # + # ==== Conditional caching + # + # You can pass :if and :unless options, to conditionally perform or skip the cache. + # + # <%= cache @model, if: some_condition(@model) do %> + # def cache(name = {}, options = nil, &block) - if controller.perform_caching + if controller.perform_caching && conditions_match?(options) safe_concat(fragment_for(cache_fragment_name(name, options), options, &block)) else yield @@ -136,6 +143,11 @@ module ActionView end private + + def conditions_match?(options) + !(options && (!options.fetch(:if, true) || options.fetch(:unless, false))) + end + def fragment_name_with_digest(name) #:nodoc: if @virtual_path [ |