Ruby on Rails

Josh Sharpe wrote:
> class PendingOrder < ActiveRecord::Base
> def sleep_until_processed
> sleep 0.5
> while !processed?
> reload
> sleep 0.25
> end
> end
> end

> Robert Walker wrote:
>> In any case I would recommend adding some "circuit breaker" code to your
>> method to prevent blocking forever. Maybe some sort of timeout/watchdog
>> to limit the amount of time this method could block.

And, if your Rails application is single treaded then your
sleep_until_processed method could block your entire Rails application
never allowing other parts of the application to perform the work
necessary to update the pending_orders table.

Maybe you should consider offloading this work to a background process
using something like delayed_job or similar.
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