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Class: ActiveModel::ForcedMutationTracker

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, AttributeMutationTracker
Instance Chain:
self, AttributeMutationTracker
Inherits: ActiveModel::AttributeMutationTracker
Defined in: activemodel/lib/active_model/attribute_mutation_tracker.rb

Constant Summary

AttributeMutationTracker - Inherited

OPTION_NOT_GIVEN

Class Method Summary

AttributeMutationTracker - Inherited

.new

Instance Attribute Summary

AttributeMutationTracker - Inherited

#any_changes?, #attributes

Instance Method Summary

AttributeMutationTracker - Inherited

#change_to_attribute, #changed?, #changed_attribute_names, #changed_in_place?, #changed_values, #changes, #force_change, #forget_change, #original_value, #attr_names, #attribute_changed?, #fetch_value, #forced_changes, #type_cast

Constructor Details

.new(attributes) ⇒ ForcedMutationTracker

[ GitHub ] 

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 92



def initialize(attributes)
  super
  @finalized_changes = nil
end


  







Instance Attribute Details



  

    #finalized_changes   (readonly, private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 130



attr_reader :finalized_changes


  







Instance Method Details



  

    #attr_names   (private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 132



def attr_names
  forced_changes.keys
end


  








  

    #attribute_changed?(attr_name)  ⇒ Boolean  (private)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 136



def attribute_changed?(attr_name)
  forced_changes.include?(attr_name)
end


  








  

    #change_to_attribute(attr_name)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 101



def change_to_attribute(attr_name)
  if finalized_changes&.include?(attr_name)
    finalized_changes[attr_name].dup
  else
    super
  end
end


  








  

    #changed_in_place?(attr_name)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 97



def changed_in_place?(attr_name)
  false
end


  








  

    #clone_value(attr_name)   (private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 144



def clone_value(attr_name)
  value = fetch_value(attr_name)
  value.duplicable? ? value.clone : value
rescue TypeError, NoMethodError
  value
end


  








  

    #fetch_value(attr_name)   (private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 140



def fetch_value(attr_name)
  attributes.send(:_read_attribute, attr_name)
end


  








  

    #finalize_changes  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 125



def finalize_changes
  @finalized_changes = changes
end


  








  

    #force_change(attr_name)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 121



def force_change(attr_name)
  forced_changes[attr_name] = clone_value(attr_name) unless attribute_changed?(attr_name)
end


  








  

    #forget_change(attr_name)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 109



def forget_change(attr_name)
  forced_changes.delete(attr_name)
end


  








  

    #original_value(attr_name)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 113



def original_value(attr_name)
  if changed?(attr_name)
    forced_changes[attr_name]
  else
    fetch_value(attr_name)
  end
end


  








  

    #type_cast(attr_name, value)   (private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 151



def type_cast(attr_name, value)
  value
end