更改options_for_select以单选按钮

Question

嗨，我试图改变如下：

到

.form-group 
    = label_tag :metric, 'Metric', class: 'sr-only' 
    = select_tag :metric, options_for_select(Report::METRICS, selected: @report.metric), class: 'form-control' 

像下面的内容：

.form-group.pull-left 
     = label_tag :metric, 'Metric', class: 'sr-only' 
     .btn-group{"data-toggle" => "buttons"} 
      %label.btn.btn-default.active 
      %input#option1{name: "options", type: "radio", value: "value1"}/ 
      Value1 
      %label.btn.btn-default 
      %input#option2{name: "options", type: "radio", value: "value2"}/ 
      Value2 

然而，问题是，当我提交表单，它实际上并没有提交单选按钮值。同样在提交之后，当它保持在选定的单选按钮上时，它默认回到没有选择。

Answer 1

您可以使用radio_button_tag帮助程序并正确设置checked参数。

使用您的例子，它是这样的：

.form-group.pull-left 
    = label_tag :metric, 'Metric', class: 'sr-only' 
    .btn-group{"data-toggle" => "buttons"} 
     %label.btn.btn-default.active 
     = radio_button_tag('options', 'value1', params[:options] == 'value1') 
     Value1 
     %label.btn.btn-default 
     = radio_button_tag('options', 'value2', params[:options] == 'value2') 
     Value2