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几个字段我有这两个表:排序方式使用Rails助手
room_types
+ id
+ n_adults
+ n_children
rooms
+ id
+ name
+ hotel_id
+ room_type_id
我想列出我的所有客房由n_adults ASC排序。但是,如果两个房间的n_adults值相同,我想按n_children ASC对它们进行排序。
到目前为止,我有这样的:
<% Room.all(:conditions => ['rooms.hotel_id = ?', @hotel_id], :joins => :room_type, :order => "room_types.n_adults ASC").each do |room| %>
我怎样才能做到呢?
谢谢youuu !!!
=)
例子:
room 1 Adults: 1 Children: 0
room 2 Adults: 1 Children: 1
room 3 Adults: 2 Children: 1
room 4 Adults: 3 Children: 0
room 5 Adults: 3 Children: 1
room 6 Adults: 3 Children: 2