Ruby on Rails: How to run things in the background?

Question

When a new resource is created and it needs to do some lengthy processing before the resource is ready, how do I send that processing away into the

Answer 1

I've just been experimenting with the 'delayed_job' gem because it works with the Heroku hosting platform and it was ridiculously easy to setup!!

Add gem to Gemfile, bundle install, rails g delayed_job, rake db:migrate Then start a queue handler with;

RAILS_ENV=production script/delayed_job start

Where you have a method call which is your lengthy process i.e

company.send_mail_to_all_users

you change it to;

company.delay.send_mail_to_all_users

Check the full docs on github: https://github.com/collectiveidea/delayed_job