Postpone loading to railtie, fixes #27

lib/delayed_cron_job.rb

@@ -24,9 +24,15 @@ module DelayedCronJob
 end
 
 if defined?(Delayed::Backend::ActiveRecord)
-  Delayed::Backend::ActiveRecord::Job.send(:include, DelayedCronJob::Backend::UpdatableCron)
-  if Delayed::Backend::ActiveRecord::Job.respond_to?(:attr_accessible)
-    Delayed::Backend::ActiveRecord::Job.attr_accessible(:cron)
+  if defined?(Rails::Railtie)
+    # Postpone initialization to railtie for correct order
+    require 'delayed_cron_job/backend/active_record/railtie'
+  else
+    # Do the same as in the railtie
+    Delayed::Backend::ActiveRecord::Job.send(:include, DelayedCronJob::Backend::UpdatableCron)
+    if Delayed::Backend::ActiveRecord::Job.respond_to?(:attr_accessible)
+      Delayed::Backend::ActiveRecord::Job.attr_accessible(:cron)
+    end
   end
 end
 

lib/delayed_cron_job/backend/active_record/railtie.rb

@@ -0,0 +1,14 @@
+module DelayedCronJob
+  module Backend
+    module ActiveRecord
+      class Railtie < ::Rails::Railtie
+        config.after_initialize do
+          Delayed::Backend::ActiveRecord::Job.send(:include, DelayedCronJob::Backend::UpdatableCron)
+          if Delayed::Backend::ActiveRecord::Job.respond_to?(:attr_accessible)
+            Delayed::Backend::ActiveRecord::Job.attr_accessible(:cron)
+          end
+        end
+      end
+    end
+  end
+end

lib/delayed_cron_job/version.rb

@@ -1,3 +1,3 @@
 module DelayedCronJob
-  VERSION = '0.7.3'
+  VERSION = '0.7.4'
 end