instance method `changes`

Ruby on Rails 3.0.20

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

changes()

Map of changed attrs => [original value, new value].

person.changes # => {}
person.name = 'bob'
person.changes # => { 'name' => ['bill', 'bob'] }

Source

# File activemodel/lib/active_model/dirty.rb, line 117
    def changes
      changed.inject(HashWithIndifferentAccess.new){ |h, attr| h[attr] = attribute_change(attr); h }
    end

Defined in activemodel/lib/active_model/dirty.rb line 117 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveModel::Dirty

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