<commit_before>class Notches::Date < ActiveRecord::Base
  self.table_name = "notches_dates"

  has_many :hits, :class_name => "Notches::Hit",
                  :foreign_key => 'notches_date_id'
end<commit_msg>add unique scope<commit_after>class Notches::Date < ActiveRecord::Base
  self.table_name = "notches_dates"

  has_many :hits, :class_name => "Notches::Hit",
                  :foreign_key => 'notches_date_id'

  scope :unique, group("notches_url_id, notches_session_id, notches_ip_id")
end
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{'dir': 'git-commits-cleaned', 'id': '5687554', 'n_tokens_mistral': 177, 'n_tokens_neox': 169, 'n_words': 30}