openproject/db/migrate/20200403105252_add_cron_to_...

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class AddCronToDelayedJobs < ActiveRecord::Migration[6.0]
  def self.up
    add_column :delayed_jobs, :cron, :string
  end

  def self.down
    remove_column :delayed_jobs, :cron
  end
end
Add cron job functionality to delayed_job 5 years ago			`class AddCronToDelayedJobs < ActiveRecord::Migration[6.0]`
			`def self.up`
			`add_column :delayed_jobs, :cron, :string`
			`end`

			`def self.down`
			`remove_column :delayed_jobs, :cron`
			`end`
			`end`