Module: Observable

Class Method Summary collapse



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# File 'app/observers/observable.rb', line 6

def self.extended(model)
  model.observers = Set.new
end



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# File 'app/observers/observable.rb', line 10

def add_observer(observer)
  observers << observer
end

# File 'app/observers/observable.rb', line 18

def observer_instances_for(model)
  observers.map do |observer|
    observer.new(model)
  end
end



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# File 'app/observers/observable.rb', line 14

def remove_observer(observer)
  observers.delete(observer)
end