app/views/biological_associations_graphs/_form.html.erb
<%= form_for(@biological_associations_graph) do |f| %>
<%= render 'shared/errors', object: @biological_associations_graph %>
<div class="field">
<%= f.label :name %><br>
<%= f.text_field :name %>
</div>
<%= f.fields_for :origin_citation, @biological_associations_graph.origin_citation do |s| -%>
<div class="field">
<%= s.label :source %>
<br>
<%= render( partial: 'workbench/elements/forms/ajax_select', locals:
{controller: 'sources',
related_object: @biological_associations_graph.source,
object: 'biological_associations_graph[origin_citation_attributes]',
method: 'source_id',
tag_id: 'source_id_for_original_citation_taxon_name',
size: '50%',
display: source_tag(@biological_associations_graph.source)})
%>
</div>
<% end %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>