How to add data attribute in Rails form select tag?

Question

I found this Bootstrap Select project and its gem for Rails. I want to implement search in the select tag.

I do inspect element and here is the HTML source:

Answer 1

Try:

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

Answer 2

  <%= 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%>

Answer 3

if you are passing a block to the select, you need to pass {} two times, e.g.

    => f.select :to_user_id, {}, {}, data: { placeholder: "Choisis des invités..." }, class: "chosen-image" do
      - User.find_each do |user|
        option(data-img-src="#{user_image_url_for(user)}" value="#{user.id}")
          = user.first_name

Answer 4

<%= 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}} %>