Question

How to expire a directory in Rails?

I have a blog where /posts/ lists all the posts. Controller posts, action index. Pretty standard stuff.

Posts are paginated in groups of 10 using will_paginate.

The pages are being cached like this:

/posts/
/posts/index/2
/posts/index/3
/posts/index/4
...
/posts/index/134
/posts/index/135
... 
etc..

When I need to expire this pages, expire_page(posts_path) won’t do the job, it will only expire /posts.html.

What’s the best way to expire the paginated pages? Since there is an undetermined number of pages, should I just expire the whole /posts/index/ directory? How can I expire a directory?

thanks

Answer 1

You’re doing page caching, right? Why not just delete the directory?

system("rm -rf #{RAILS_ROOT}/public/posts")
#Or, in more Rubyish code
FileUtils.rm_rf "#{RAILS_ROOT}/public/posts"