instance method `changed_attributes`

Ruby on Rails 6.1.7.10

Since v3.0.20

Compare with:

changed_attributes()

Returns a hash of the attributes with unsaved changes indicating their original values like attr => original value.

person.name # => "bob"
person.name = 'robert'
person.changed_attributes # => {"name" => "bob"}

Source

# File activemodel/lib/active_model/dirty.rb, line 220
    def changed_attributes
      mutations_from_database.changed_values
    end

Defined in activemodel/lib/active_model/dirty.rb line 220 · View on GitHub · Improve this page · Find usages on GitHub

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