如何在Rails表单中添加数据属性select标签？

我找到了这个Bootstrap Select项目及其Rails的gem 。 我想在select标签中实现搜索。

我检查元素，这里是HTML源：

 Hot Dog, Fries and a Soda Burger, Shake and a Smile Sugar, Spice and all things nice  

如何在表单选择标记中添加data-live-search="true" ？

我的表格选择：

我尝试过的：

但它不起作用。

Answer 1

尝试：

 {class: "form-control selectpicker", "data-live-search" => "true" } 

Answer 2

 <%= f.select :food_id, options_for_select(Food.all.map{|c| [c.name, c.id]}, f.object.food_id), {}, {class: "form-control selectpicker", data: {"live-search": true}} %> 

Answer 3

  <%= f.select(:plan_id, {},{}, {'v-model'=>"plan_id",'@change'=>"onChange", class: "form-control"}) do %> <% Plan.all.each do |plan| %> <%= content_tag(:option,"#{plan.name.upcase} #{plan.max_items} #{number_to_currency(plan.price)}", value:plan.id, :data => {items: plan.max_items, price: plan.price}) %> <% end%> <% end%>