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我正在尝试对订单表进行查询，以根据用户给定的 id 查找订单号，然后根据数量 * 价格给出订单总额。我有以下

 @ordertotals = Orderlines.where(id: @orderinfo.id).sum("quantity * price")

这会将总数放入每个新对象中。然后我试图显示所有我发现的值

<table border=1>
  <tr>
    <td>Order Number</td>
    <td>Order Date</td>
    <td>Cost of Order</td>
  </tr>
    <% # for each customer who has this sales rep
  # display each customer in a row
  for @custdata in @orderinfo   %>
              <tr>
                    <td><%=@orderinfo.id%></td>
                    <td><%=@orderinfo.order_date%></td>
            <% for @orderinfo in @ordertotals %>
                    <td><%=@ordertotals%></td>
            </tr>
            <% end %>
    <% end %>
</table>

这将首先循环遍历@orderinfo 以显示id 和订单日期，然后循环遍历@ordertotals 以显示每个总数。但是，当我运行它时，我会在

@ordertotals = Orderlines.where(id: @orderinfo.id).sum("quantity * price")

行，谁能告诉我我在这里做错了什么以及我的打印设置方式是否可行？

编辑：抱歉忘记在此处添加错误

compile error
/rails1/app/views/ordersdisplay.html.erb:22: syntax error, unexpected ':', expecting ')'
...rtotals = Orderlines.where(id: @orderinfo.id).sum("quantity ...
                          ^
/rails1/app/views/ordersdisplay.html.erb:22: syntax error, unexpected ')', expecting   kEND
...lines.where(id: @orderinfo.id).sum("quantity * price")
                          ^
/rails1/app/views/ordersdisplay.html.erb:55: syntax error, unexpected kENSURE, expecting $end
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