<%= f.fields_for :tr_air_dtls do |dtl| %>
    <%= f.fields_for :tr_air_mikro_analisas do |analisa| %>
      <%= render "tr_analisa_fields", f: analisa, bentuk: get_inspeksi_qc_relations(tempm3_data.first)[7..11].to_sym, lokasi: lokasi, tmp: tmp, uniq: uniq %>
<% end %>



tr_analisa_fields.html.erb:

 <td class="hasil_analisa-column">
    <%= f.text_field :"hasil_analisa_#{tmp.id}_#{lokasi}", class: 'form-control' %>
  </td>