app/views/categories/_form.html.erb
<%= form_for(@category) do |f| %>
<% if @category.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@category.errors.count, "error") %> prohibited this category from being saved:</h2>
<ul>
<% @category.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :acro %><br>
<%= f.text_field :acro %>
</div>
<div class="field">
<%= f.label :title_en %><br>
<%= f.text_field :title_en %>
</div>
<div class="field">
<%= f.label :title_it %><br>
<%= f.text_field :title_it %>
</div>
<div class="field">
<%= f.label :description_en %><br>
<%= f.text_area :description_en %>
</div>
<div class="field">
<%= f.label :description_it %><br>
<%= f.text_area :description_it %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>