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class Question < ActiveRecord::Base
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attr_accessible :title, :global, :answers_attributes, :answer_ids, :question_type_id, :conference_id
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belongs_to :question_type
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has_and_belongs_to_many :conferences
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has_many :qanswers, dependent: :delete_all
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has_many :answers, through: :qanswers, dependent: :delete_all
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validates :title, presence: true
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validates :answers, presence: true
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accepts_nested_attributes_for :answers, allow_destroy: true
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end
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