app/views/admin/change_types/_form.html.erb
<%= form_for :change_type, :url => collection_url, :remote => true do |f| %>
<%= error_messages_for(@change_type) %>
<label>Designation</label>
<%= f.select :designation_id,
options_from_collection_for_select(@designations, :id, :name, @change_type && @change_type.designation_id)
%><br />
<label>Code</label><%= f.text_field :name %><br />
<p>Name</p>
<label>EN</label> <%= f.text_field :display_name_en %><br />
<label>ES</label> <%= f.text_field :display_name_es %><br />
<label>FR</label> <%= f.text_field :display_name_fr %><br />
<% end %>