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

Question

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, '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

但是问题是，当我提交表单时，它实际上并没有提交单选按钮值。同样在提交后，当它应该保留在选定的单选按钮上时，它默认返回为无选择。

Answer 1

您可以使用 radio_button_tag 助手并设置 checked参数正确。

使用您的示例，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