Module: ActiveJob::Core

Relationships & Source Files
Namespace Children
Modules: `ClassMethods`
Extension / Inclusion / Inheritance Descendants
Included In: ActionMailer::MailDeliveryJob, `Base`, `::ActiveRecord::DestroyAssociationAsyncJob`
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, `::ActiveSupport::Concern`
Defined in:	activejob/lib/active_job/core.rb

Overview

Provides general behavior that will be included into every Active Job object that inherits from Base.

Class Method Summary

`::ActiveSupport::Concern` - Extended

class_methods	Define class methods from given block.
included	Evaluate given block in context of base class, so that you can write class macros here.
prepended	Evaluate given block in context of base class, so that you can write class macros here.

Instance Attribute Summary

#arguments rw

Job arguments.
#enqueue_error rw

Track any exceptions raised by the backend so callers can inspect the errors.
#enqueued_at rw

Track when a job was enqueued.
#exception_executions rw

::Hash that contains the number of times this job handled errors for each specific retry_on declaration.
#executions rw

Number of times this job has been executed (which increments on every retry, like after an exception).
#job_id rw

Job Identifier.
#locale rw

I18n.locale to be used during the job.
#priority=(value) writeonly

Priority that the job will have (lower is more priority).
#provider_job_id rw

ID optionally provided by adapter.
#queue_name=(value) writeonly

Queue in which the job will reside.
#scheduled_at rw

::Time when the job should be performed.
#serialized_arguments=(value) writeonly
#successfully_enqueued? ⇒ Boolean rw
#timezone rw

Timezone to be used during the job.

Instance Method Summary

#deserialize(job_data)

Attaches the stored job data to the current instance.
#initialize(*arguments)

Creates a new job instance.
#serialize

Returns a hash with the job data that can safely be passed to the queuing adapter.

Instance Attribute Details

#arguments (rw)

Job arguments

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 12


attr_accessor :arguments

#enqueue_error (rw)

Track any exceptions raised by the backend so callers can inspect the errors.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 56


attr_accessor :enqueue_error

#enqueued_at (rw)

Track when a job was enqueued

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 46


attr_accessor :enqueued_at

#exception_executions (rw)

::Hash that contains the number of times this job handled errors for each specific retry_on declaration. Keys are the string representation of the exceptions listed in the retry_on declaration, while its associated value holds the number of executions where the corresponding retry_on declaration handled one of its listed exceptions.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 37


attr_accessor :exception_executions

#executions (rw)

Number of times this job has been executed (which increments on every retry, like after an exception).

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 31


attr_accessor :executions

#job_id (rw)

Job Identifier

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 19


attr_accessor :job_id

#locale (rw)

I18n.locale to be used during the job.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 40


attr_accessor :locale

#priority=(value) (writeonly)

Priority that the job will have (lower is more priority).

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 25


attr_writer :priority

#provider_job_id (rw)

ID optionally provided by adapter

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 28


attr_accessor :provider_job_id

#queue_name=(value) (writeonly)

Queue in which the job will reside.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 22


attr_writer :queue_name

#scheduled_at (rw)

::Time when the job should be performed

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 16


attr_accessor :scheduled_at

#serialized_arguments=(value) (writeonly)

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 13


attr_writer :serialized_arguments

#successfully_enqueued? ⇒ `Boolean` (rw)

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 51


def successfully_enqueued?
  @successfully_enqueued
end

#timezone (rw)

Timezone to be used during the job.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 43


attr_accessor :timezone

Instance Method Details

#deserialize(job_data)

Attaches the stored job data to the current instance. Receives a hash returned from #serialize

Examples

class DeliverWebhookJob < ActiveJob::Base
  attr_writer :attempt_number

  def attempt_number
    @attempt_number ||= 0
  end

  def serialize
    super.merge('attempt_number' => attempt_number + 1)
  end

  def deserialize(job_data)
    super
    self.attempt_number = job_data['attempt_number']
  end

  rescue_from(Timeout::Error) do |exception|
    raise exception if attempt_number > 5
    retry_job(wait: 10)
  end
end

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 150


def deserialize(job_data)
  self.job_id               = job_data["job_id"]
  self.provider_job_id      = job_data["provider_job_id"]
  self.queue_name           = job_data["queue_name"]
  self.priority             = job_data["priority"]
  self.serialized_arguments = job_data["arguments"]
  self.executions           = job_data["executions"]
  self.exception_executions = job_data["exception_executions"]
  self.locale               = job_data["locale"] || I18n.locale.to_s
  self.timezone             = job_data["timezone"] || Time.zone&.name
  self.enqueued_at          = Time.iso8601(job_data["enqueued_at"]) if job_data["enqueued_at"]
  self.scheduled_at         = Time.iso8601(job_data["scheduled_at"]) if job_data["scheduled_at"]
end

#initialize(*arguments)

Creates a new job instance. Takes the arguments that will be passed to the perform method.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 93


def initialize(*arguments)
  @arguments  = arguments
  @job_id     = SecureRandom.uuid
  @queue_name = self.class.queue_name
  @scheduled_at = nil
  @priority   = self.class.priority
  @executions = 0
  @exception_executions = {}
  @timezone   = Time.zone&.name
end

#serialize

Returns a hash with the job data that can safely be passed to the queuing adapter.

[ GitHub ]

# File 'activejob/lib/active_job/core.rb', line 107


def serialize
  {
    "job_class"  => self.class.name,
    "job_id"     => job_id,
    "provider_job_id" => provider_job_id,
    "queue_name" => queue_name,
    "priority"   => priority,
    "arguments"  => serialize_arguments_if_needed(arguments),
    "executions" => executions,
    "exception_executions" => exception_executions,
    "locale"     => locale || I18n.locale.to_s,
    "timezone"   => timezone,
    "enqueued_at" => Time.now.utc.iso8601(9),
    "scheduled_at" => scheduled_at ? scheduled_at.utc.iso8601(9) : nil,
  }
end

Module: ActiveJob::Core

Overview

Class Method Summary

::ActiveSupport::Concern - Extended

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#arguments (rw)

#enqueue_error (rw)

#enqueued_at (rw)

#exception_executions (rw)

#executions (rw)

#job_id (rw)

#locale (rw)

#priority=(value) (writeonly)

#provider_job_id (rw)

#queue_name=(value) (writeonly)

#scheduled_at (rw)

#serialized_arguments=(value) (writeonly)

#successfully_enqueued? ⇒ Boolean (rw)

#timezone (rw)

Instance Method Details

#deserialize(job_data)

Examples

#initialize(*arguments)

#serialize

`::ActiveSupport::Concern` - Extended

#successfully_enqueued? ⇒ `Boolean` (rw)