缓存activerecord结果就像片段一样

Question

In my views I do a lot of this:

<% cache("sports_menu_" +session[:lang], {:expires_in => 60.minutes}) do %>
...... # a load of stuff
<% end %>

However I've discovered a lot of time is spent querying the DB for data that doesn't change that often. Is there a way to cache this data in a similar manner?

For instance:

Model.find(:all, :select => "only a few fields", :conditions => "nasty conditions", :include => "some joins", :order => "date_time desc") 

This takes about 7 seconds, the main table keeps about 20M records. A lot of users hit this particular action and the query only runs once/hit. But it would make sense caching that for a number of minutes so that for everyone else it will load from the cache. I'm using memcache by the way.

I can't cache the entire action because there are some parameters that change on occasion and some locale-specific code within the view.

I have considered moving that to the view level but don't feel too comfortable about that, it would kind of defeat the point of using Rails.

TIA!

Answer 1

It looks to me like ActiveRecord::Cache::Store is what you want. You can use it like this .