.rdb-groups
  - if @board.groups.count == 1
    .rdb-group data-rdb-group-id=@board.group_list.first.id
      = render partial: 'rdb_dashboard/taskboard/columns', locals: {group: @board.group_list.first}
  - else
    - show_all = @board.group_list.select(&:visible?).none?
    - @board.group_list.each do |group|
      - if show_all || group.visible?
        = render partial: 'rdb_dashboard/taskboard/group', locals: {group: group}