<%= form_for @order, url: user_orders_path(@user) do |f| %>
<%= render 'application/errors', model: @order %>
<%= f.fields_for :order_products do |op_field| %>
<%= render op_field.object, f: op_field, product: op_field.object.product %>
<% end %>
<%= render 'order_products/total_price', f: f %>
<% end %>