include bootstrap role attribute in rails form hel

Question

Twitter Bootstrap has this role attribute for forms:

<form role="form">

How can I include the role attribute in Rails form helpers? I tried this, but it doesn't work:

<%= form_for @user, class: "form-horizontal", role: "form" do |f| %>

Answer 1

form_for and form_tag have to be used differently:

form_for:

<%= form_for @user, html: { class: "form-horizontal", role: "form" } do |f| %>

form_tag:

<%= form_tag some_path, class: "form-horizontal", role: "form" do |f| %>

Answer 2

You need to specify it as an html option:

<%= form_for @user, html: {class: "form-horizontal", role: "form"} do |f| %>