Module | ActiveRecord::Observing::ClassMethods |
In: |
vendor/rails/activerecord/lib/active_record/observer.rb
|
Activates the observers assigned. Examples:
# Calls PersonObserver.instance ActiveRecord::Base.observers = :person_observer # Calls Cacher.instance and GarbageCollector.instance ActiveRecord::Base.observers = :cacher, :garbage_collector # Same as above, just using explicit class references ActiveRecord::Base.observers = Cacher, GarbageCollector
# File vendor/rails/activerecord/lib/active_record/observer.rb, line 21 21: def observers=(*observers) 22: observers = [ observers ].flatten.each do |observer| 23: observer.is_a?(Symbol) ? 24: observer.to_s.camelize.constantize.instance : 25: observer.instance 26: end 27: end