instance method `changes`

Ruby on Rails 7.1.6

Since v3.0.20

Compare with:

changes()

Returns a hash of changed attributes indicating their original and new values like attr => [original value, new value].

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

Source

# File activemodel/lib/active_model/dirty.rb, line 346
    def changes
      mutations_from_database.changes
    end

Defined in activemodel/lib/active_model/dirty.rb line 346 · View on GitHub · Improve this page · Find usages on GitHub

Signature