Module: Qe

Defined in:
lib/qe.rb,
lib/qe/qu.rb,
lib/qe/action.rb,
lib/qe/locale.rb,
lib/qe/resque.rb,
lib/qe/worker.rb,
lib/qe/sidekiq.rb,
lib/qe/testing.rb,
lib/qe/version.rb,
lib/qe/beanstalk.rb,
lib/qe/immediate.rb,
lib/qe/delayed_job.rb,
lib/qe/testing/rspec.rb,
lib/qe/worker/class_methods.rb,
lib/qe/worker/instance_methods.rb

Overview

In this wild world where a new asynchronous job processing library is released every once in a while, Qe tries to keep a unified interface that works with most famous libraries:

# Sidekiq # Resque # DelayedJob # Qu # Beanstalk/Backburner

See an example:

You can choose an adapter:

Qe.adapter = Qe::Sidekiq
Qe.adapter = Qe::Resque
Qe.adapter = Qe::Qu
Qe.adapter = Qe::DelayedJob
Qe.adapter = Qe::Beanstalk

Create our worker that will send e-mails through ActionMailer.

class MailerWorker
  include Qe::Worker

  def perform
    Mailer.public_send(options[:mail], options).deliver
  end
end

Define our Mailer class.

class Mailer < ActionMailer::Base
  def welcome(options)
    @options = options
    mail :to => options[:email]
  end
end

Enqueue a job to be processed asynchronously.

MailerWorker.enqueue({
  :mail => :welcome,
  :email => "[email protected]",
  :name => "John Doe"
})

You can specify when this job must be processed by setting the :run_at option.

MailerWorker.enqueue({
  :mail => :follow_up,
  :email => "[email protected]",
  :name => "John Doe",
  :run_at => 5.days.from_now
})

Testing support

Qe comes with testing support. Just require the qe/testing.rb file and a fake queuing adapter will be used. All enqueued jobs will be stored at Qe.jobs. Note that this method is only available on testing mode.

require "qe/testing"
Qe.adapter = Qe::Testing

If you’re using RSpec, you can require the qe/testing/rspec.rb file instead. This will reset Qe.jobs before every spec and will add a enqueue matcher.

require "qe/testing/rspec"

describe "Enqueuing a job" do
  it "enqueues job" do
    expect {
      # do something
    }.to enqueue(MailerWorker).with(:email => "[email protected]")
  end
end

Defined Under Namespace

Modules: Action, EnqueueMatcher, Locale, Worker Classes: Beanstalk, DelayedJob, Immediate, Qu, Resque, Sidekiq, Testing

Constant Summary collapse

UnsupportedFeatureError =

Error that is raised when trying to use a feature that isn’t supported by some adapter.

Class.new(StandardError)
OutOfOrderError =

Error that is raised when trying to include a module before Qe::Worker is included.

Class.new(StandardError)
VERSION = 
"0.2.1"

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.adapter ⇒ Object

Returns the value of attribute adapter.



91
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93
 
# File 'lib/qe.rb', line 91

def adapter
  @adapter
end

Class Method Details

.jobs ⇒ Object 



2
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4
 
# File 'lib/qe/testing.rb', line 2

def self.jobs
  @jobs ||= []
end