Question

我从控制器中选择的选项可以选择添加＆＃34;请选择＆＃34;已禁用并已选中。三江源

      <div class="form-group">
      <%= f.label :trade_id, 'Empresa', :class => 'col-lg-2 control-label' %>
      <div class="col-lg-10">
      <%= select_tag "trade_id", options_from_collection_for_select(@trade, "id", "name"),:class => 'form-control' %>
      </div>
    </div>

Answer 1

我认为您的问题可以通过添加＆＃34;提示来解决：＆＃34; select_tag中的参数，如下所示：

<%= select_tag "trade_id", options_from_collection_for_select(@trade, "id", "name"),:class => 'form-control', prompt: 'please select' %>

如何添加请在select_tag rails 4中选择

1 个答案: