activescaffold/active_scaffold

<div id="<%= sub_form_list_id(:association => column.name, :id => parent_record.id || generated_id(parent_record) || 99999999999) %>">
  <%= render partial: 'form_association_record', collection: associated, locals: {scope: scope, parent_record: parent_record, column: column, columns: local_assigns[:columns], layout: :vertical} %>
  <%= render partial: 'form_association_record', object: show_blank_record, locals: {scope: scope, parent_record: parent_record, column: column, columns: local_assigns[:columns], layout: :vertical, locked: true, index: associated.size} if show_blank_record %>
</div>