这是我的表格:
<table>
<tbody>
<% form_for :HhActiveCarrier, @carriers, :url => { :action => "update" } do |f| %>
<% for carrier in @carriers %>
<tr>
<%= render :partial => "summary_detail", :locals => {:carrier => carrier, :f => f} %>
</tr>
<% end %>
</tbody>
</table>
<%= submit_tag "Update" %>
<% end %>
我的部分:
<td class="tn"><%= h(carrier.name.to_s()) -%></td>
<td class="sc"><%= h(carrier.country.to_s()) -%></td>
<td class="sc"><%= select_tag(:country, options_for_select(@countries)) -%></td>
这是我定义变量的控制器:
class ActiveCarriersController < ApplicationController
def index
@carriers = HhActiveCarrier.find(:all)
for carrier in @carriers
country = carrier["country"]
if country.nil?
carrier["country"] = "none"
end
end
@countries = ["USA", "UK", "Canada"]
end
所有这一切都有效。但是,如果我对表单中的下拉列表进行了更改:
<td class="sc"><%= f.select("country", @countries) -%></td>
我收到此错误:
Showing app/views/active_carriers/_summary_detail.rhtml where line #3 raised:
undefined method `country' for #<Array:0xef79a08>
Extracted source (around line #3):
1: <td class="tn"><%= h(carrier.name.to_s()) -%></td>
2: <td class="sc"><%= h(carrier.country.to_s()) -%></td>
3: <td class="sc"><%= f.select("country", @countries) -%></td>
Trace of template inclusion: /app/views/active_carriers/_summary.rhtml, >/app/views/active_carriers/index.rhtml
我的表单选择出错了什么?我正在使用Ruby on Rails 2.3.8
Stackoverflow告诉我,我对所有代码都没有太多解释,所以我只是写东西。我真的不知道还有什么可以解释,所以如果你不了解一切,请提出问题。此外,我无法引用错误消息,因为Stackoverflow一直告诉我我的代码没有代码块,所以我不得不在错误消息周围放置代码块。
答案 0 :(得分:0)
试试这个:f.select("carrier", "country", options_for_select(@countries))