Contents

class CreateDelayedJobs < ActiveRecord::Migration[4.2]
  def self.up
    create_table :delayed_jobs, force: true do |table|
      table.integer  :priority, default: 0, null: false # Allows some jobs to jump to the front of the queue
      table.integer  :attempts, default: 0, null: false # Provides for retries, but still fail eventually.
      table.text     :handler, null: false                 # YAML-encoded string of the object that will do work
      table.text     :last_error                              # reason for last failure (See Note below)
      table.datetime :run_at                                  # When to run. Could be Time.zone.now for immediately, or sometime in the future.
      table.datetime :locked_at                               # Set when a client is working on this object
      table.datetime :failed_at                               # Set when all retries have failed (actually, by default, the record is deleted instead)
      table.string   :locked_by                               # Who is working on this object (if locked)
      table.string   :queue                                   # The name of the queue this job is in
      table.timestamps
    end

    add_index :delayed_jobs, [:priority, :run_at], name: 'delayed_jobs_priority'
  end

  def self.down
    drop_table :delayed_jobs
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
iqvoc-4.14.5	db/migrate/20131220134356_create_delayed_jobs.rb
iqvoc-4.14.4	db/migrate/20131220134356_create_delayed_jobs.rb
iqvoc-4.13.2	db/migrate/20131220134356_create_delayed_jobs.rb
iqvoc-4.13.0	db/migrate/20131220134356_create_delayed_jobs.rb