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-rw-r--r--actionpack/lib/action_view/helpers/cache_helper.rb26
1 files changed, 12 insertions, 14 deletions
diff --git a/actionpack/lib/action_view/helpers/cache_helper.rb b/actionpack/lib/action_view/helpers/cache_helper.rb
index f544a9d147..385378ea29 100644
--- a/actionpack/lib/action_view/helpers/cache_helper.rb
+++ b/actionpack/lib/action_view/helpers/cache_helper.rb
@@ -2,31 +2,29 @@ module ActionView
# = Action View Cache Helper
module Helpers
module CacheHelper
- # This helper to exposes a method for caching of view fragments.
- # See ActionController::Caching::Fragments for usage instructions.
+ # This helper exposes a method for caching fragments of a view
+ # rather than an entire action or page. This technique is useful
+ # caching pieces like menus, lists of newstopics, static HTML
+ # fragments, and so on. This method takes a block that contains
+ # the content you wish to cache.
#
- # A method for caching fragments of a view rather than an entire
- # action or page. This technique is useful caching pieces like
- # menus, lists of news topics, static HTML fragments, and so on.
- # This method takes a block that contains the content you wish
- # to cache. See ActionController::Caching::Fragments for more
- # information.
+ # See ActionController::Caching::Fragments for usage instructions.
#
# ==== Examples
- # If you wanted to cache a navigation menu, you could do the
- # following.
+ # If you want to cache a navigation menu, you can do following:
#
# <% cache do %>
# <%= render :partial => "menu" %>
# <% end %>
#
- # You can also cache static content...
+ # You can also cache static content:
#
# <% cache do %>
# <p>Hello users! Welcome to our website!</p>
# <% end %>
#
- # ...and static content mixed with RHTML content.
+ # Static content with embedded ruby content can be cached as
+ # well:
#
# <% cache do %>
# Topics:
@@ -46,8 +44,8 @@ module ActionView
private
# TODO: Create an object that has caching read/write on it
def fragment_for(name = {}, options = nil, &block) #:nodoc:
- if controller.fragment_exist?(name, options)
- controller.read_fragment(name, options)
+ if fragment = controller.read_fragment(name, options)
+ fragment
else
# VIEW TODO: Make #capture usable outside of ERB
# This dance is needed because Builder can't use capture