Page caching feeds and cache file extensions

Rails
1

I have a feeds controller which generates RSS and Atom pages. I put
‘caches_page :show’ in it. The problem is that the pages are saved with
an html extension. As a result, browsers display the cached feeds as
HTML rather than XML, and feed validators complain.

There’s an option to set ‘Base.page_cache_extension’ globally, but I
don’t want to do that for everything. I also tried setting that option
just in the show method, but that doesn’t work. How can I get the cached
pages for just Feeds#show get saved with xml/rss/atom extensions?

Thanks
csn

2

On 2/4/06, csn [email protected] wrote:

Thanks
csn

It’s kind of hackish I think, but I set it in the route, and then send
it to the correct action in the controller:

map.xml ‘xml/:file’, :controller => ‘syndicate’, :action => ‘xml’,
:requirements => { :file => /^\w+.xml$/ }

http://collaboa.techno-weenie.net/repository/file/rails_help/app/controllers/syndicate_controller.rb

–
Rick O.
http://techno-weenie.net

3

csn wrote:

Thanks
csn

I ended up setting the content-type conditionally in lighttpd based on
the path. I’m sure you can do the same in Apache.

4

— Rick O. [email protected] wrote:

csn

It’s kind of hackish I think, but I set it in the
route, and then send
it to the correct action in the controller:

map.xml ‘xml/:file’, :controller => ‘syndicate’,
:action => ‘xml’,
:requirements => { :file => /^\w+.xml$/ }

http://collaboa.techno-weenie.net/repository/file/rails_help/app/controllers/syndicate_controller.rb

Rick

Thanks. What does your caches_page_with_references
function do? I briefly looked around your repository,
but didn’t see its definition.

csn

–
Rick O.
http://techno-weenie.net

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5

— csn [email protected] wrote:

don’t want to do that for everything. I also tried
setting that option
just in the show method, but that doesn’t work. How
can I get the cached
pages for just Feeds#show get saved with
xml/rss/atom extensions?

I’ve made some progress. Changing
@@page_cache_extension to ‘.xml’ in the controller
causes the cache files to get saved with an xml
entension. However, I can’t get them to get used. I
added this to my .htaccess:

RewriteRule ^(feeds/[^.]+)$ $1.xml [QSA]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

above the standard:

RewriteRule ^([^.]+)$ $1.html [QSA]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

The production shows that xml cache files aren’t used,
but html ones are. I even tried just this in the
.htaccess:

RewriteRule ^([^.]+)$ $1.xml [QSA]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

But those cache files STILL aren’t getting used. The
above ruleset should cause EVERY request sans file
extension to get rewritten to $1.xml, but it
apparently isn’t working. I have no idea why. Only
.html works. I’m using webrick (in production mode).
Any ideas?

Thanks,
csn

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