app/views/backend/notas/_form.html.erb
<%= simple_form_for [:backend, resource] do |f| %>
<div>
<div class="span6">
<%= f.input :numero, :label =>"Numero" %>
<%= f.association :organization, input_html: { class: 'select2' }, label: "Tipo de iniciador" %>
<%= f.simple_fields_for :initiator do |initiator| %>
<%= initiator.input :name, :label => "Iniciador"%>
<% end %>
<%= f.association :tags, input_html: { multiple: true, class: 'chzn-select',
"data-pre" => f.object.tags.to_json(methods: :name), only: [:id, :name] } %>
</div>
<div class="span6">
<%= f.simple_fields_for :pases do |pases_form| %>
<%= pases_form.association :area, input_html: { class: 'select2' } %>
<%= pases_form.association :weekly_session, input_html: { class: 'select2' } %>
<%= pases_form.input :ingreso, as: :datepicker %>
<%= pases_form.input :fojas %>
<%= pases_form.input :descripcion, input_html: { rows: 6 } %>
<% end %>
</div>
</div>
<div>
<%= f.button :submit, 'Crear Nota', :class => 'btn-primary' %>
</div>
<% end %>