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# encoding: utf-8
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class SeminarSession
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include Mongoid::Document
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include Mongoid::Timestamps
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field :key
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belongs_to :seminar_main
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field :seminar_signup_ids, :type => Array, :default => []
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def seminar_signups
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SeminarSignup.where(:id.in=>seminar_signup_ids)
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end
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end
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