app/views/msip/personas/remplazar.html.erb
<%- model_class = Sivel2Gen::Caso %>
<%= simple_form_for @caso,
url: sivel2_gen.casos_path(@caso).sub(/\./,"/"),
:html => { :class => 'form-horizontal' } do |c| %>
<div class='campos-persona-con-victima-id'>
<%= c.simple_fields_for :victima, @victima, child_index: @vic_position do |v| %>
<%= v.input :id, as: :hidden, value: @victima.id.to_s %>
<%= v.simple_fields_for :persona do |p| %>
<% s = render partial: 'msip/personas/persona_campos',
locals: { f: p, fvictima: v, index_vic: @vic_position } %>
<%= s.html_safe %>
<% end %>
<% end %>
</div> <!-- campos-victima -->
<% end %>