#171 Delayed Job (revised)

Jan 07, 2012 | 8 minutes | Plugins, Background Jobs

Long requests should be moved into a background process, and Delayed Job is one of the easiest ways to do this because it works with an Active Record database.

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Note: What I stated in the episode about job priority is incorrect. A priority of "0" is top priority and will be processed before a priority of 10 or some higher number.

          terminal
        
rails g delayed_job:active_record
rake db:migrate
rake jobs:work
script/delayed_job start
script/delayed_job stop

          Gemfile
        
gem 'daemons'
gem 'delayed_job_active_record'

          newsletters_controller.rb
        
@newsletter.delay.deliver
# or
Newsletter.delay(queue: "newsletter", priority: 20, run_at: 5.minutes.from_now).deliver(params[:id])

          config/initializers/delayed_job_config.rb
        
Delayed::Worker.max_attempts = 5
Delayed::Worker.delay_jobs = !Rails.env.test?