ruby-on-rails – 将options_for_select更改为单选按钮

嗨,我正在尝试更改以下内容：

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

类似于以下内容：

.form-group.pull-left
        = label_tag :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",value: "value2"}/
            Value2

但问题是,当我提交表单时,它实际上并没有提交单选按钮值.在提交之后,当它应该保留在所选单选按钮上时,它默认为无选择.

解决方法

您可以使用 radio_button_tag帮助程序并正确设置检查参数.

使用您的示例,它是这样的：

.form-group.pull-left
  = label_tag :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