# File lib/symetrie_com/acts_as_better_nested_set.rb, line 914
        def reorder_children(*ids)
          transaction do
            ordered_ids = ids.flatten.uniq
            current_children = children({ :conditions => { :id => ordered_ids } })
            current_children_ids = current_children.map(&:id)
            ordered_ids = ordered_ids & current_children_ids
            return [] unless ordered_ids.length > 1 && ordered_ids != current_children_ids
            perform_reorder_of_children(ordered_ids, current_children)
          end         
        end