<%= @user.name %> <%= form_for( @order, url: user_orders_path(@user)) do |f| %> <%= render 'application/errors', model: @order %> <%= f.fields_for :order_products do |op_field| %> <%= render 'order_products/form_row', f: op_field %> <% end %> <%= f.submit "Order", class: "btn btn-primary " %> <% end %>