Rails 4向控制器传递多个参数

Question

我有一个order_items的购物车。OrderItem有一个product_id和多个book_ids。当我有多个order_items，即两个产品时，Order.create只接受第一个product_id。

结帐表单:

  <%= form_tag charges_path do %>
    <h4><% current_order.subtotal %></h4>
    <div class="form-group">
    </div>
    <script 
      class='stripe-button' 
      src="https://checkout.stripe.com/checkout.js" 
      data-key="<%= @stripe_btn_data %>" 
      data-amount=<%= current_order.subtotal %> 
      data-description="<%= @order_items.count %>" 
      data-shipping-address="true"
      data-billing-address="<%= @stripe_btn_data %>"
    ></script>
    <% @order_items.each do |oi| %>
      <%= hidden_field_tag :product_id, oi.id %>
      <% end %>
  <% end %> 

订单。

def create
@product = Product.find(params[:product_id])
Order.create(
  user: current_user,
  stripe_billing_name:                  params[:stripeBillingName],
  stripe_shipping_name:                 params[:stripeShippingName],
  stripe_authenticity_token:            params[:authenticity_token],
  stripe_email:                         params[:stripeEmail],
  stripe_billing_address_country_code:  params[:stripeBillingAdressCountryCode],
  stripe_shipping_address_country_code: params[:stripeShippingAdressCountryCode],
  stripe_shipping_address_country:      params[:stripeShippingAdressCountry],
  stripe_billing_address_country:       params[:stripeBillingAdressCountry],
  billing_address:                      params[:stripeBillingAddressLine1],
  billing_city:                         params[:stripeBillingAddressCity],
  billing_state:                        params[:stripeBillingAddressState],
  billing_zip:                          params[:stripeBillingAddressZip],
  shipping_address:                     params[:stripeShippingAddressLine1],
  shipping_city:                        params[:stripeShippingAddressCity],
  shipping_state:                       params[:stripeShippingAddressState],
  shipping_zip:                         params[:stripeShippingAddressZip],
  product_id:                           params[:product_id]
end

当product_id为1和2时，我得到product_id 2的最终结果。
如何在Order.create上获得所有product_ids ?

Answer 1

我想你可以试试这样做

<% @order_items.each do |oi| %>
  <%= hidden_field_tag 'product_ids[]', oi.id %>
<% end %>

Answer 2

<% @order_items.each do |oi| %>
  <%= hidden_field_tag 'product_ids[]'.to_i, oi.id %>
<% end %>