Clockwork is a library to replace cron for scheduling jobs from within an application. This is a sample application which uses the Rails 3 web framework, a SQLite database, and the Delayed Job queueing system to demonstrate Clockwork's use.
The app fetches the Dow Jones index from Google Finance once every three minutes, and puts the results in the SQLite database. The web app shows the history of all fetched data points.
- Bundler (gem install bundler)
- SQLite3 (brew install sqlite)
$ git clone git://github.com/adamwiggins/clockwork-rails-dj.git $ cd clockwork-rails-dj $ bundle install $ bundle exec rake db:migrate
$ bundle exec rails server & $ bundle exec rake jobs:work & $ bundle exec clockwork app/clock.rb &
Alternately, use Foreman (gem install foreman):
$ foreman start
Visit http://localhost:3000/ and you should see the first data point.