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Module: AbstractController::Callbacks::ClassMethods

Relationships & Source Files
Defined in: actionpack/lib/abstract_controller/callbacks.rb

Instance Method Summary

Instance Method Details

#_insert_callbacks(callbacks, block = nil)

Take callback names and an optional callback proc, normalize them, then call the block with each callback. This allows us to abstract the normalization across several methods that use it.

Parameters

  • callbacks - An array of callbacks, with an optional options hash as the last parameter.

  • block - A proc that should be added to the callbacks.

Block Parameters

  • name - The callback to be added.

  • options - A hash of options to be used when adding the callback.

[ GitHub ] 

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 91



def _insert_callbacks(callbacks, block = nil)
  options = callbacks.extract_options!
  _normalize_callback_options(options)
  callbacks.push(block) if block
  callbacks.each do |callback|
    yield callback, options
  end
end


  








  

    #_normalize_callback_options(options)  
  



  

    

If :only or :except are used, convert the options into the :if and :unless options of ::ActiveSupport::Callbacks.



The basic idea is that :only => :index gets converted to :if => proc {|c| c.action_name == "index" }.



Note that :only has priority over :if in case they are used together.



only: :index, if: -> { true } # the :if option will be ignored.



Note that :if has priority over :except in case they are used together.



except: :index, if: -> { true } # the :except option will be ignored.



Options


  • 

    only   - The callback should be run only for this action.
    

  • 

    except  - The callback should be run for all actions except this action.
    



  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 66



def _normalize_callback_options(options)
  _normalize_callback_option(options, :only, :if)
  _normalize_callback_option(options, :except, :unless)
end


  








  

    #after_action(names, block)    



  

    

Append a callback after actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 129



rdoc_method :method: after_action


  








  

    #append_after_action(names, block)    



  

    

Append a callback after actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 150



rdoc_method :method: append_after_action


  








  

    #append_around_action(names, block)    



  

    

Append a callback around actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 178



rdoc_method :method: append_around_action


  








  

    #append_before_action(names, block)    



  

    

Append a callback before actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 122



rdoc_method :method: append_before_action


  








  

    #around_action(names, block)    



  

    

Append a callback around actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 157



rdoc_method :method: around_action


  








  

    #before_action(names, block)    



  

    

Append a callback before actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 101



rdoc_method :method: before_action


  








  

    #prepend_after_action(names, block)    



  

    

Prepend a callback after actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 136



rdoc_method :method: prepend_after_action


  








  

    #prepend_around_action(names, block)    



  

    

Prepend a callback around actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 164



rdoc_method :method: prepend_around_action


  








  

    #prepend_before_action(names, block)    



  

    

Prepend a callback before actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 108



rdoc_method :method: prepend_before_action


  








  

    #skip_after_action(names)    



  

    

Skip a callback after actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 143



rdoc_method :method: skip_after_action


  








  

    #skip_around_action(names)    



  

    

Skip a callback around actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 171



rdoc_method :method: skip_around_action


  








  

    #skip_before_action(names)    



  

    

Skip a callback before actions. See _insert_callbacks for parameter details.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 115



rdoc_method :method: skip_before_action