class Event < ActiveRecord::Base include Proposable has_one :track, through: :proposition, source: :proposition_accepting, source_type: Track has_one :conference, through: :track belongs_to :event_type validates :title, presence: true validates :length, presence: true, numericality: {only_integer: true, greater_than: 0} validates :abstract, presence: true validates :description, presence: true validates :agreement, acceptance: true scope :confirmed, -> { where.not confirmed_at: nil } end