refactor

boxes.rb

    def is_catalog_unique?(catalogs, user, folder_name)
      if catalogs.blank?
        @catalog = user.root_catalog
        children = @catalog.live_children

        children.each do |child|
          if folder_name.gsub("+", " ") == child.name
            return false
          end
        end
      else
        catalogs.each do |catalog_id|
          @catalog = user.role.catalogs.find_by_id(catalog_id)
          children = @catalog.live_children

          children.each do |child|
            if folder_name.gsub("+", " ") == child.name
              return false
            end
          end
        end
      end
    end