# File lib/symetrie_com/acts_as_better_nested_set.rb, line 737
        def renumber_full_tree
          indexes = []
          n = 1
          transaction do
            for r in roots # because we may have virtual roots
              n = 1 + r.calc_numbers(n, indexes)
            end
            for i in indexes
              base_set_class.update_all("#{left_col_name} = #{i[:lft]}, #{right_col_name} = #{i[:rgt]}", "#{self.class.primary_key} = #{i[:id]}")
            end
          end
          ## reload?
        end