如何在rails 4的select标签选项中添加class属性？

Question

我正在写这样的选择选项。它没有给出任何错误，但是生成的html中没有class属性。

<%= f.select(:late_penalty, options_for_select([["Days in Week", "Days in Week"],
                                            ["Days in Month", "Days in Month"]], :selected => @late_early.late_penalty) , { :class => 'my_style_class' })%>

Answer 1

试试这个会起作用

 <%= f.select(:late_penalty,
 options_for_select([
                    ["Days in Week", "Days in Week"],
                    ["Days in Month", "Days in Month"]],
                    :selected => @late_early.late_penalty),
                    { } , { :class => 'my_style_class' })%>