What's the best way to cache a paginated result set with rails and memcached.
For example
#posts controller
def index @posts = Rails.cache.fetch('all_posts') do Post.paginate(:conditions => ['xx = ?', yy], :include => [:author], :page => params[:page], :order => 'created_at D.ESC') end end
This obviously doesn't work when the params[:page] changes...I can change the key to "all_posts_#{params[:page]} _#{params[:order]_#{Post.last.created_at.to_i}}"
But then there could be several possible order (recent, popular, most voted etc) and there will be a combination of pages and orders..lots of keys this way.
Problem #2 - It seems when I implement this solution the caches get written correctly and the page loads fine during the first call do a paginate action but when I click back on the same page i.e. page1, with "recent" order, it seems the browser does not even make a call to the server. I don't see any controller action being called in the production log??
I am using passenger, REE, memcached, and rails 2.3.5. Firebug shows no requests being made....
Is there a simples/more graceful way of handling this?
Thanks