rails select_tag 选定值 [英] rails select_tag selected value

问题描述

对于下面给出的代码，我想使用传递的值保持选中的选择框.

For the code given below I wanted to keep the select box selected with the value that is passed.

但这不起作用:

@yrs =[2011,2010,2009,2008]
<%= select_tag 'year', options_for_select([["Select" , "" ]] + @yrs.to_a,:selected=>2011) %>

请告诉我如何去做.

谢谢

推荐答案

删除 :selected=> 部分.

语法:

options_for_select(@options, @selected_options)

用法:

options_for_select(1..5, 3)  # creates a range 1..5 , with 3 as selected by default

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