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A small addition to the fragment caching documentation

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1 parent 6df580a commit 37fac27cd9bbd1a0e0a0325a87bbfa70cc7baa47 @labria labria committed Jan 26, 2009
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  1. +7 −0 actionpack/lib/action_controller/caching/fragments.rb
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7 actionpack/lib/action_controller/caching/fragments.rb
@@ -25,6 +25,13 @@ module Caching
# The expiration call for this example is:
#
# expire_fragment(:controller => "topics", :action => "list", :action_suffix => "all_topics")
+ #
+ # You can also pass a options hash to the call, which is passed on to the read and write methods of your fragment cache store. For example,
+ # if you are using the MemCacheStore, then you can pass the :expire_in option to make the fragment expire in a certain amount of time.
+ #
+ # <% cache "latest_photos", :expires_in => 5.minutes do %>
+ # <%= render :partial => "photo", :collection => Photo.latest%>
+ # <% end%>
module Fragments
# Given a key (as described in <tt>expire_fragment</tt>), returns a key suitable for use in reading,
# writing, or expiring a cached fragment. If the key is a hash, the generated key is the return

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