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path: root/app/models/event.rb
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class Event < ActiveRecord::Base
  
  # Associations
  
  has_many    :occurrences
  belongs_to  :node
  
  # Callbacks
  
  after_save  :generate_occurences
  
  # Instance Methods
  
  def occurrences_in_range start_time, end_time
    self.occurrences.where(
      "start_time > ? AND end_time < ?",
      start_time, end_time
    )
  end 

  private
    def generate_occurences
      Occurrence.generate self
    end
end