app/views/otus/_form.html.erb
<%= form_for(@otu) do |f| %>
<%= render 'shared/errors', object: @otu %>
<div class="field">
<%= f.label :name %>
<br>
<%= f.text_field :name, size: 60 %>
</div>
<div class="field">
<%= f.label :taxon_name %>
<br>
<%= render partial: 'workbench/elements/forms/ajax_select',
locals: {
controller: 'taxon_names',
object: 'otu',
method: 'taxon_name_id',
tag_id: 'taxon_name_id_for_otu',
display: taxon_name_autocomplete_selected_tag(@otu.taxon_name),
size: 60} %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>