instiki/vendor/rails/actionpack/lib/action_view/helpers/cache_helper.rb
Jacques Distler 7600aef48b Upgrade to Rails 2.2.0
As a side benefit, fix an (non-user-visible) bug in display_s5().
Also fixed a bug where removing orphaned pages did not expire cached summary pages.
2008-10-27 01:47:01 -05:00

40 lines
1.3 KiB
Ruby

module ActionView
module Helpers
# This helper to exposes a method for caching of view fragments.
# See ActionController::Caching::Fragments for usage instructions.
module CacheHelper
# 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.
#
# ==== Examples
# If you wanted to cache a navigation menu, you could do the
# following.
#
# <% cache do %>
# <%= render :partial => "menu" %>
# <% end %>
#
# You can also cache static content...
#
# <% cache do %>
# <p>Hello users! Welcome to our website!</p>
# <% end %>
#
# ...and static content mixed with RHTML content.
#
# <% cache do %>
# Topics:
# <%= render :partial => "topics", :collection => @topic_list %>
# <i>Topics listed alphabetically</i>
# <% end %>
def cache(name = {}, options = nil, &block)
@controller.fragment_for(output_buffer, name, options, &block)
end
end
end
end