Nathan Colgate

Rails 3 ActionMailer and Delayed Job

What I’d like to do:

message = Notifier.password_reset_instructions(self)
Delayed::Job.enqueue MailerJob.new(message)

What happens when I do:

TypeError in Public/password resetsController#create
can’t dump anonymous class Class
…
/lib/delayed/backend/base.rb:61:in `payload_object=’

Problem line 61:

self[‘handler’] = object.to_yaml

Console confirms:

> user = User.find(:first)
> message = Notifier.password_reset_instructions(user)
> message.to_yaml
TypeError: can’t dump anonymous class Class

How I fixed it. Note: all of my notifier methods take a user argument, so I thought this was a little cleaner than coming up with a new job class for every email method:

Delayed::Job.enqueue NotifierJob.new(:password_reset_instructions,user_id)

And my lib/notifier_job.rb file:

class NotifierJob < Struct.new(:notifier_method,:user_id)
  def perform
    user = User.find(user_id)
    Notifier.send(notifier_method,user).deliver
  end
end 

Hope that helps.