app/views/server/languages/_form.html.erb
<%= simple_form_for [:server, language] do |f| %>
<%= f.error_notification %>
<%= f.error_notification message: f.object.errors[:base].to_sentence if f.object.errors[:base].present? %>
<div class="row">
<div class="col-md-4">
<%= f.input :name %>
</div>
<div class="col-md-4">
<%= f.input :iso_code %>
</div>
<div class="col-md-4">
<%= f.input :summernote_locale %>
</div>
</div>
<% content_for :action_bar_right do %>
<%= submit f %>
<% end %>
<% end %>