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Class: ActiveSupport::Callbacks::CallbackSequence

Do not use. This class is for internal use only.
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 Attribute Summary

Instance Method Summary

Constructor Details

.new(nested = nil, call_template = nil, user_conditions = nil) ⇒ CallbackSequence

[ GitHub ] 

  


# File 'activesupport/lib/active_support/callbacks.rb', line 518



def initialize(nested = nil, call_template = nil, user_conditions = nil)
  @nested = nested
  @call_template = call_template
  @user_conditions = user_conditions

  @before = nil
  @after = nil
end


  







Instance Attribute Details



  

    #final?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 549



def final?
  !@call_template
end


  








  

    #nested   (readonly)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 547



attr_reader :nested


  







Instance Method Details



  

    #after(after)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 533



def after(after)
  @after ||= []
  @after.push(after)
  self
end


  








  

    #around(call_template, user_conditions)  
  

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# File 'activesupport/lib/active_support/callbacks.rb', line 539



def around(call_template, user_conditions)
  CallbackSequence.new(self, call_template, user_conditions)
end


  








  

    #before(before)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 527



def before(before)
  @before ||= []
  @before.unshift(before)
  self
end


  








  

    #expand_call_template(arg, block)  
  

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# File 'activesupport/lib/active_support/callbacks.rb', line 553



def expand_call_template(arg, block)
  @call_template.expand(arg.target, arg.value, block)
end


  








  

    #invoke_after(arg)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 561



def invoke_after(arg)
  @after&.each { |a| a.call(arg) }
end


  








  

    #invoke_before(arg)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 557



def invoke_before(arg)
  @before&.each { |b| b.call(arg) }
end


  








  

    #skip?(arg)  ⇒ Boolean 
  



  

    
  





  


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# File 'activesupport/lib/active_support/callbacks.rb', line 543



def skip?(arg)
  arg.halted || !@user_conditions.all? { |c| c.call(arg.target, arg.value) }
end