Added Rails 3 compatible generator

lib/generators/delayed_job/delayed_job_generator.rb

@@ -0,0 +1,33 @@
+require 'rails/generators'
+require 'rails/generators/migration'
+
+class DelayedJobGenerator < Rails::Generators::Base
+
+  include Rails::Generators::Migration
+
+  def self.source_root
+     @source_root ||= File.join(File.dirname(__FILE__), 'templates')
+  end
+
+  # Implement the required interface for Rails::Generators::Migration.
+  #
+  def self.next_migration_number(dirname) #:nodoc:
+    next_migration_number = current_migration_number(dirname) + 1
+    if ActiveRecord::Base.timestamped_migrations
+      [Time.now.utc.strftime("%Y%m%d%H%M%S"), "%.14d" % next_migration_number].max
+    else
+      "%.3d" % next_migration_number
+    end
+  end
+
+  def create_script_file
+    template 'script', 'script/delayed_job', :chmod => 0755
+  end
+
+  def create_migration_file
+    if defined?(ActiveRecord)
+      migration_template 'migration.rb', 'db/migrate/create_delayed_jobs.rb'
+    end
+  end
+
+end

lib/generators/delayed_job/templates/migration.rb

@@ -0,0 +1,21 @@
+class CreateDelayedJobs < ActiveRecord::Migration
+  def self.up
+    create_table :delayed_jobs, :force => true do |table|
+      table.integer  :priority, :default => 0      # Allows some jobs to jump to the front of the queue
+      table.integer  :attempts, :default => 0      # Provides for retries, but still fail eventually.
+      table.text     :handler                      # 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.timestamps
+    end
+
+    add_index :delayed_jobs, [:priority, :run_at], :name => 'delayed_jobs_priority'
+  end
+
+  def self.down
+    drop_table :delayed_jobs  
+  end
+end

lib/generators/delayed_job/templates/script

@@ -0,0 +1,5 @@
+#!/usr/bin/env ruby
+
+require File.expand_path(File.join(File.dirname(__FILE__), '..', 'config', 'environment'))
+require 'delayed/command'
+Delayed::Command.new(ARGV).daemonize