Add an ActiveRecord model CronoJob

lib/crono.rb

@@ -9,3 +9,4 @@ require "crono/job.rb"
 require "crono/scheduler.rb"
 require "crono/config.rb"
 require "crono/performer_proxy.rb"
+require "crono/orm/active_record/crono_job.rb"

lib/crono/orm/active_record/crono_job.rb

@@ -0,0 +1,8 @@
+require 'active_record'
+
+module Crono
+  class CronoJob < ActiveRecord::Base
+    self.table_name = "crono_jobs"
+    validates :job_id, presence: true
+  end
+end