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Railscasts#228-可排序表列
原标题:Railscasts #228 - Sortable Table Columns

我正在关注Ryan Bates关于可排序表列的railscast,我已经成功地获得了一个可以升序和降序排序的列。

我的表比Railscast中的表更复杂,因为我有来自不同表的列。

# controller
@cars = Car.find(:all).order(sort_column + " " + sort_direction).includes(:manufacturers)


#view
<%= sortable "age" %>

如何为制造商等相关表添加可排序列?

最佳回答

我也有类似的问题。用类似的东西修复了它:

 <%= sortable "manufacturers.name", "Manufacturer name" %>
 <%= sortable "cars.age", "Age" %>

application_controller中的排序函数应该如下所示:

 def sort_column
     [ manufacturers.name ,  cars.age ].include?(params[:sort]) ? params[:sort] :  cars.age 
 end
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