123456789_123456789_123456789_123456789_123456789_

Module: AbstractController::Callbacks

Relationships & Source Files
Namespace Children
Modules:
ClassMethods
Extension / Inclusion / Inheritance Descendants
Included In:
::ActionController::API, ::ActionController::Base, ::ActionController::ContentSecurityPolicy, ::ActionController::ForceSSL, ::ActionController::RequestForgeryProtection, ::ActionMailer::Base, ::ActionView::TestCase::TestController, Rails::ApplicationController, Rails::InfoController, Rails::MailersController, Rails::WelcomeController
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::DescendantsTracker, ::ActiveSupport::Concern
Instance Chain:
self, ::ActiveSupport::Callbacks
Defined in: actionpack/lib/abstract_controller/callbacks.rb

Overview

Abstract Controller provides hooks during the life cycle of a controller action. Callbacks allow you to trigger logic during this cycle. Available callbacks are:

  • after_action

  • append_after_action

  • append_around_action

  • append_before_action

  • around_action

  • before_action

  • prepend_after_action

  • prepend_around_action

  • prepend_before_action

  • skip_after_action

  • skip_around_action

  • skip_before_action

NOTE: Calling the same callback multiple times will overwrite previous callback definitions.

Constant Summary

::ActiveSupport::Callbacks - Included

CALLBACK_FILTER_TYPES

::ActiveSupport::Callbacks - Attributes & Methods

Class Method Summary

::ActiveSupport::DescendantsTracker - self

clear, descendants, direct_descendants,
store_inherited

This is the only method that is not thread safe, but is only ever called during the eager loading phase.

::ActiveSupport::Concern - Extended

append_features, class_methods, included

Instance Method Summary

  • #process_action(*args)

    Override Base#process_action to run the process_action callbacks around the normal behavior.

::ActiveSupport::Callbacks - Included

#run_callbacks

Runs the callbacks for the given event.

DSL Calls

included

[ GitHub ] 


32
33
34
35
36
# File 'actionpack/lib/abstract_controller/callbacks.rb', line 32

included do
  define_callbacks :process_action,
                   terminator: ->(controller, result_lambda) { result_lambda.call; controller.performed? },
                   skip_after_callbacks_if_terminated: true
end

Class Attribute Details

.__callbacks (rw)

[ GitHub ] 

  


# File 'activesupport/lib/active_support/callbacks.rb', line 67



class_attribute :__callbacks, instance_writer: false, default: {}


  








  

    .__callbacks?  ⇒ Boolean  (rw)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 67



class_attribute :__callbacks, instance_writer: false, default: {}


  







Instance Attribute Details



  

    #__callbacks   (readonly)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 67



class_attribute :__callbacks, instance_writer: false, default: {}


  








  

    #__callbacks?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 67



class_attribute :__callbacks, instance_writer: false, default: {}


  







Instance Method Details



  

    #process_action(*args)  
  



  

    

Override Base#process_action to run the process_action callbacks around the normal behavior.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 40



def process_action(*args)
  run_callbacks(:process_action) do
    super
  end
end