app/views/users/_form.html.erb
<%= simple_form_for @user, :html => { :class => 'form-horizontal' } do |f| %>
<%= f.input :full_name, :wrapper => :prepend do %>
<span class="add-on"><i class="fa fa-user"></i></span>
<%= f.input_field :full_name %>
<% end %>
<%= f.input :email, :wrapper => :prepend do %>
<span class="add-on"><i class="fa fa-envelope"></i></span>
<%= f.input_field :email %>
<% end %>
<%= f.input :email_visibility, :as => :radio_buttons, label: 'نمایش ایمیل در پروفایل؟' %>
<%= f.input :website, :wrapper => :prepend do %>
<span class="add-on"><i class="fa fa-th"></i></span>
<%= f.input_field :website %>
<% end %>
<%= f.input :favorite_tags, input_html: {class: "span3"} %>
<% if can? :edit, Role %>
<%= f.association :roles, :as => :radio_buttons, :checked => @user.role_ids %>
<% end %>
<div class="form-actions">
<%= f.button :submit, t('.submit'), class: 'btn-primary', data: { disable_with: t('view.disable_with') } %>
<%= link_to t("helpers.links.cancel"), :back, name: 'cancel', class: 'btn', data: { confirm: t('.confirm') } %>
</div>
<% end %>