Class: Memento::Session

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/memento/session.rb

Instance Method Summary collapse

Instance Method Details

#add_state(action_type, record) ⇒ Object 



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# File 'lib/memento/session.rb', line 13

def add_state(action_type, record)
  states.store(action_type, record)
end

#undo ⇒ Object 



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# File 'lib/memento/session.rb', line 17

def undo
  states.map(&:undo).inject(Memento::ResultArray.new) do |results, result|
    result.state.destroy if result.success?
    results << result
  end
ensure
  destroy if states.count.zero?
end

#undo! ⇒ Object 



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# File 'lib/memento/session.rb', line 26

def undo!
  transaction do
    undo.tap do |results|
      raise Memento::ErrorOnRewind if results.failed?
    end
  end
end