app/views/partido_steps/postulacion_interna.html.erb
<div class="container">
<h2 class="page-header">PostulaciĆ³n Interna</h2>
<%= render :layout => 'form' do |f| %>
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-4">
<div class="form-inline">
<%= link_to_add_association f, :eleccion_internas, class: 'btn btn-success form-control', data: { 'association-insertion-method': 'append', 'association-insertion-node': '.postulacion-interna' } do %>
<i class="fa fa-plus"></i> Agregar postulaciĆ³n interna
<% end %>
</div>
</div>
</div>
<div class="row "></div>
<div class="postulacion-interna">
<%= f.fields_for :eleccion_internas do |builder| %>
<%= render 'eleccion_interna_fields', :f => builder %>
<% end %>
</div>
<% end %>
</div>