Clase para las suscripciones de los periodistas a los diferentes departamentos
# File app/models/subscription.rb, line 30 def delete_pending_alerts_if_required EventAlert.unsent.find(:all, :conditions => "spammable_id=#{self.user_id} AND spammable_type='Journalist'").each do |alert| alert.destroy if alert.event.department.id == self.department_id end end