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@erichurst
Created May 1, 2010 22:29
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def self.find_valid_referral(username)
case
when username.blank? then EarlyAdopter.first(:group => "distribution_count ASC").user_id
when !username.blank? && self.exists?(:username => username) then User.find_by_username(username).id
else nil
end
end
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