class Jekyll::ArchivesV2::Archives

def read_dates(collection_name)
  years(@collections[collection_name]).each do |year, y_documents|
    append_enabled_date_type({ :year => year }, "year", collection_name, y_documents)
    months(y_documents).each do |month, m_documents|
      append_enabled_date_type({ :year => year, :month => month }, "month", collection_name, m_documents)
      days(m_documents).each do |day, d_documents|
        append_enabled_date_type({ :year => year, :month => month, :day => day }, "day", collection_name, d_documents)
      end
    end
  end
end