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path: root/app/models/event.rb
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class Event < ApplicationRecord
  include RruleHumanizer

  belongs_to :node, optional: true
  has_many   :occurrences, dependent: :destroy
  acts_as_taggable_on :tags

  validates :title, presence: true, unless: -> { node_id.present? }

  after_save :generate_occurrences

  def occurrences_in_range start_time, end_time
    self.occurrences.where(
      "start_time > ? AND end_time < ?",
      start_time, end_time
    )
  end

  def display_title
    title.presence || node&.head&.title || "Untitled event"
  end

  private
    def generate_occurrences
      Occurrence.generate self
    end
end