Question

I use the cache-money gem for transparent usage of Memcached. Using the supplied config file it is enabled on all modes (development, test, production). Is there a way to only activate cache-money in production mode?

It’s not immediately clear how to do this, and it’s a total pain dealing with caching in development mode.

Answer 1

Thanks to Obie Fernandez for a great offline hint: Stub out cache-money’s #index method to do nothing. This provides a place for the #index statements in the models to go, and stops the error mentioned above.

Here is my full cache_money.rb lib:

if RAILS_ENV != 'development'   require 'cache_money'    config = YAML.load(IO.read(File.join(RAILS_ROOT, 'config', 'memcached.yml')))[RAILS_ENV]   $memcache = MemCache.new(config)   $memcache.servers = config['servers']    $local = Cash::Local.new($memcache)   $lock = Cash::Lock.new($memcache)   $cache = Cash::Transactional.new($local, $lock)    class ActiveRecord::Base     is_cached :repository => $cache   end else   # If we're in development mode, we don't want to   # deal with cacheing oddities, so let's overrite   # cache-money's #index method to do nothing...   class ActiveRecord::Base     def self.index(*args)     end   end end