app/views/origin_relationships/_form.html.erb
<%= form_for(@origin_relationship) do |f| %>
<%= render 'shared/errors', object: @origin_relationship %>
<div class="field">
<%= f.label :old_object %><br>
<%= f.text_field :old_object %>
</div>
<div class="field">
<%= f.label :new_object %><br>
<%= f.text_field :new_object %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>