module StateMachine::Integrations::ActiveModel::Observer
Adds support for invoking callbacks on ActiveModel observers with more than one argument (e.g. the record and the state transition). By default, ActiveModel only supports passing the record into the callbacks.
For example:
class VehicleObserver < ActiveModel::Observer # The default behavior: only pass in the record def after_save(vehicle) end # Custom behavior: allow the transition to be passed in as well def after_transition(vehicle, transition) Audit.log(vehicle, transition) end end
Public Instance Methods
update_with_transition(observer_update)
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# File lib/state_machine/integrations/active_model/observer.rb, line 22 def update_with_transition(observer_update) method = observer_update.method send(method, *observer_update.args) if respond_to?(method) end