123456789_123456789_123456789_123456789_123456789_

Class: ActiveSupport::Callbacks::CallbackSequence

Relationships & Source Files
Inherits: Object
Defined in: activesupport/lib/active_support/callbacks.rb

Overview

Execute before and after filters in a sequence instead of chaining them with nested lambda calls, see: github.com/rails/rails/issues/18011

Class Method Summary

Instance Method Summary

Constructor Details

.new(&call) ⇒ CallbackSequence

[ GitHub ] 

  


# File 'activesupport/lib/active_support/callbacks.rb', line 479



def initialize(&call)
  @call = call
  @before = []
  @after = []
end


  







Instance Method Details



  

    #after(&after)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 490



def after(&after)
  @after.push(after)
  self
end


  








  

    #around(&around)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 495



def around(&around)
  CallbackSequence.new do |*args|
    around.call(*args) {
      self.call(*args)
    }
  end
end


  








  

    #before(&before)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 485



def before(&before)
  @before.unshift(before)
  self
end


  








  

    #call(*args)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 503



def call(*args)
  @before.each { |b| b.call(*args) }
  value = @call.call(*args)
  @after.each { |a| a.call(*args) }
  value
end