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Class: ActionDispatch::Callbacks

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::DescendantsTracker
Instance Chain:
self, ::ActiveSupport::Callbacks
Inherits: Object
Defined in: actionpack/lib/action_dispatch/middleware/callbacks.rb

Overview

Provides callbacks to be executed before and after dispatching the request.

Constant Summary

::ActiveSupport::Callbacks - Included

CALLBACK_FILTER_TYPES

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.

Instance Method Summary

::ActiveSupport::Callbacks - Included

#run_callbacks

Runs the callbacks for the given event.

Constructor Details

.new(app) ⇒ Callbacks

[ GitHub ] 

  


# File 'actionpack/lib/action_dispatch/middleware/callbacks.rb', line 21



def initialize(app)
  @app = app
end


  







Class Method Details



  

    .after(*args, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/callbacks.rb', line 16



def after(*args, &block)
  set_callback(:call, :after, *args, &block)
end


  








  

    .before(*args, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/callbacks.rb', line 12



def before(*args, &block)
  set_callback(:call, :before, *args, &block)
end


  







Instance Method Details



  

    #call(env)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/callbacks.rb', line 25



def call(env)
  error = nil
  result = run_callbacks :call do
    begin
      @app.call(env)
    rescue => error
    end
  end
  raise error if error
  result
end


  








  

    #to_cleanup  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/callbacks.rb', line 10



delegate :to_prepare, :to_cleanup, :to => "ActionDispatch::Reloader"


  








  

    #to_prepare  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/callbacks.rb', line 10



delegate :to_prepare, :to_cleanup, :to => "ActionDispatch::Reloader"