Class: ActiveModel::NullMutationTracker

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

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain: self, `::Singleton`
Inherits:	Object
Defined in:	activemodel/lib/active_model/attribute_mutation_tracker.rb

Instance Attribute Summary

::Singleton instances are not duplicable:

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 174


def any_changes?
  false
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 171


def change_to_attribute(attr_name)
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 178


def changed?(attr_name, **)
  false
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 159


def changed_attribute_names
  []
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 182


def changed_in_place?(attr_name)
  false
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 163


def changed_values
  {}
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 167


def changes
  {}
end

[ GitHub ]

# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 186


def original_value(attr_name)
end