Module: NxtStateMachine::Hash::ClassMethods

Defined in:
lib/nxt_state_machine/integrations/hash.rb

Instance Method Summary collapse

Instance Method Details

#state_machine(name = :default, state_attr: :state, target: nil, &config) ⇒ Object



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# File 'lib/nxt_state_machine/integrations/hash.rb', line 4

def state_machine(name = :default, state_attr: :state, target: nil, &config)
  machine = super(
    name,
    state_attr: state_attr,
    target: target,
    &config
  )

  machine.get_state_with do |current_target|
    if current_target[state_attr].nil?
      current_target[state_attr] = initial_state.enum
    end

    current_target[state_attr]
  end

  machine.set_state_with do |current_target, transition|
    transition.run_before_callbacks
    result = set_state(current_target, transition, state_attr)
    transition.run_after_callbacks
    transition.run_success_callbacks || result
  rescue StandardError => error
    current_target[state_attr] = transition.from.enum

    if error.is_a?(NxtStateMachine::Errors::TransitionHalted)
      false
    else
      raise
    end
  end

  machine.set_state_with! do |current_target, transition|
    transition.run_before_callbacks
    result = set_state(current_target, transition, state_attr)
    transition.run_after_callbacks

    transition.run_success_callbacks || result
  rescue StandardError
    current_target[state_attr] = transition.from.enum
    raise
  end

  machine
end