Show only unique conference participants
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@ -17,7 +17,7 @@ class Conference < ActiveRecord::Base
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has_many :volunteer_teams
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has_many :volunteers
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has_one :call_for_participation, dependent: :destroy
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has_many :participants, class_name: 'User', through: :events
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has_many :participants, -> { uniq }, class_name: 'User', through: :events
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has_many :participant_profiles, class_name: 'PersonalProfile'
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has_many :slots, through: :halls
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