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31 lines
1,010 B
Markdown
31 lines
1,010 B
Markdown
* `*_previously_changed?` accepts `:from` and `:to` keyword arguments like `*_changed?`.
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topic.update!(status: :archived)
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topic.status_previously_changed?(from: "active", to: "archived")
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# => true
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*George Claghorn*
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* Raise FrozenError when trying to write attributes that aren't backed by the database on an object that is frozen:
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class Animal
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include ActiveModel::Attributes
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attribute :age
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end
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animal = Animal.new
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animal.freeze
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animal.age = 25 # => FrozenError, "can't modify a frozen Animal"
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*Josh Brody*
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* Add `*_previously_was` attribute methods when dirty tracking. Example:
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pirate.update(catchphrase: "Ahoy!")
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pirate.previous_changes["catchphrase"] # => ["Thar She Blows!", "Ahoy!"]
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pirate.catchphrase_previously_was # => "Thar She Blows!"
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*DHH*
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Please check [6-0-stable](https://github.com/rails/rails/blob/6-0-stable/activemodel/CHANGELOG.md) for previous changes.
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