Okay, I debugged a bit more and found out what the problem is
(at least when locally in development environment). Inside the action
cache content_for_layout
is called to get the content to be cached if layout is set to false.
This causes
my ajax requests to be not cached because content_for_layout returns
nil as
I don't render the layout with ajax calls, only a partial. So I do
need to set
layout to true for ajax calls. However I can't do that the way I tried
to, as
the layout param doesn't accept a Proc. So I overwrote part of the
ActionCacheFilter class
to test the layout for a call method and call it if present. That
works great locally!
However, in production on Heroku with Memcached it still won't work
properly.
Ajax calls are not cached.
On 30 Nov., 16:30, nico <nico.rits...@googlemail.com> wrote:
> Hi there,
>
> I'm using Action Caching with Rails 2.3.8 on Heroku with Memcached
> (via Dalli Gem).
>
> Without the layout parameter Action Caching works fine. However, as
> soon as I add layout => false I get problems: Normal non-ajax requests
> are cached fine, without the layout, as expected. But ajax requests
> are not properly cached: I get cache misses all the time. Then, when I
> log in to my app neither normal, nor ajax requests are cached at all.
>
> I also tried to set :layout => Proc.new { |c| c.request.xhr? }
> When I do that ajax and normal requests are properly cached (no matter
> if logged out or logged in)
> but normal requests also cache the layout. Seems odd to me as normal
> requests should have :layout => false.
> I'm trying to debug this for hours now, but I haven't got a clue
> what's going on so far. What especially confuses me
> is that the logged in state of my app apparently has an influence on
> the caching behaviour.
>
> Here is my full caching call (for the case of layout => false):
>
> [code]caches_action :index, :layout => false,
> :cache_path => Proc.new { |c|
> c.params.clone.delete_if { |k,v| ['authenticity_token'].include?
> (k) }.merge(:xhr => c.request.xhr? ? 't' : 'f') }[/code]
>
> I'd greatly appreciate any help on this!
>
> Nico
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