ruby-on-rails-3 - Store#index 中的 NoMethodError

Question

我收到以下错误，请任何人查看并帮助我解决这个问题。实际上这是我的 development.log 文件中显示的错误。

ActionView::Template::Error (undefined method `quantity' for #<LineItem:0xaa47b1c>):
4: <tr>
5: <% end %>
6: <tr>
7: <td><%= line_item.quantity %>&times;</td>
8: <td><%= line_item.product.title %></td>
9: <td class="item_price"><%= number_to_currency(line_item.total_price) %></td>
10: </tr>
  app/views/line_items/_line_item.html.erb:7:in `_app_views_line_items__line_item_html_erb___826332857_89103730'
  app/views/carts/_cart.html.erb:4:in `_app_views_carts__cart_html_erb___185026047_87767060'
  app/views/layouts/application.html.erb:19:in `_app_views_layouts_application_html_erb___370633105_87583010'
  app/helpers/application_helper.rb:6:in `hidden_div_if'
  app/views/layouts/application.html.erb:18:in `_app_views_layouts_application_html_erb___370633105_87583010'

Answer 1

错误很明显：您的LineItem类没有名为quantity.