在rails3中使用select_tag

Question

  <%= form_tag(:controller => "home", :action => "create", :method => 
  "post") do %>
    <br><br>


    <%= label_tag("City") %>
    <%= select_tag( "<option value=1>c1</option>
      <option value=2>ctnry</option>
      <option value=3>cntry</option>
      <option value=4>cntry</option>" , :class => "span2" ) 
    %>
  <% end %>   

与此相关的问题是什么？与form_tag有任何问题

Answer 1

您的选择中缺少“name”属性。请查看这些链接，以获取有关通过Rails生成<select>的帮助：

• http://guides.rubyonrails.org/form_helpers.html#making-select-boxes-with-ease

• http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html