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Added info about parameters passed to caches_action and removed More: blocks to clean up a little

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Aditya Chadha 2009-02-22 18:45:17 -05:00
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railties/guides/source/caching_with_rails.textile
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@ -80,8 +80,6 @@ end
If you want a more complicated expiration scheme, you can use cache sweepers If you want a more complicated expiration scheme, you can use cache sweepers
to expire cached objects when things change. This is covered in the section on Sweepers. to expire cached objects when things change. This is covered in the section on Sweepers.
[More: caching paginated results? more examples? Walk-through of page caching?]
h4. Action Caching h4. Action Caching
One of the issues with Page Caching is that you cannot use it for pages that One of the issues with Page Caching is that you cannot use it for pages that
@ -122,11 +120,14 @@ layout so that dynamic information in the layout such as logged in user info
or the number of items in the cart can be left uncached. This feature is or the number of items in the cart can be left uncached. This feature is
available as of Rails 2.2. available as of Rails 2.2.
You can modify the default action cache path by passing a +:cache_path+ option.
This will be passed directly to ActionCachePath.path_for. This is handy for
actions with multiple possible routes that should be cached differently. If
a block is given, it is called with the current controller instance.
[More: more examples? Walk-through of Action Caching from request to response? Finally, if you are using memcached, you can also pass +:expires_in+. In fact,
Description of Rake tasks to clear cached files? Show example of all parameters not used by caches_action are sent to the underlying cache
subdomain caching? Talk about :cache_path, :if and assing blocks/Procs store.
to expire_action?]
h4. Fragment Caching h4. Fragment Caching
@ -190,8 +191,6 @@ the key and can be expired the same way:
expire_fragment(:key => ['all_available_products', @latest_product.created_at].join(':')) expire_fragment(:key => ['all_available_products', @latest_product.created_at].join(':'))
</ruby> </ruby>
[More: more examples? description of fragment keys and expiration, etc? pagination?]
h4. Sweepers h4. Sweepers
Cache sweeping is a mechanism which allows you to get around having a ton of Cache sweeping is a mechanism which allows you to get around having a ton of
@ -259,8 +258,6 @@ class ProductsController < ActionController
end end
</ruby> </ruby>
[More: more examples? better sweepers?]
h4. SQL Caching h4. SQL Caching
Query caching is a Rails feature that caches the result set returned by each Query caching is a Rails feature that caches the result set returned by each