CODEWITHSUNDEEP
ruby-on-railscachingactiverecord
bachposer
bachposer

Reputation: 973

In Rails 3.1, how can I cache the results of a AR query to a cache?

For an AR query like this:

@users = User.find(some_conditions_here)

then @users is an AR array and I want to cache this.

If I do, in one controller call, a 

Rails.cache.write('foo',@users)

it doesn't complain or error out and I can even see a 'foo' under /tmp/cache with a non-zero size but a subsequent controller call to 

Rails.cache.read('foo')

returns a nil. When I do both the write and read from a Rails console, it works as expected. What is it about doing it via a controller that causes this problem?

This used to work before in Rails 2... what am I missing?

Upvotes: 0

Views: 360

Answers (1)

Vivien Barousse
Vivien Barousse

Reputation: 20895

Check that config.action_controller.perform_caching is set to true.

To quote the Rails caching guide,

caching is disabled by default for development and test, and enabled for production

Upvotes: 2

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