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::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.
subclasses

Alias for ActiveSupport::DescendantsTracker.direct_descendants.

::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 Method Summary

  • #process_action

    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  
  



  

    

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