ruby-on-rails – ruby?? on rails选择不默认为当前值

<% form_for :search,:url => search_path,:html => {:method => :get} do |f| %>
        <%=  select('search',:type,options_for_select(['Artist','Track'])) %>
        <%= f.text_field :query %>
<% end %>

这是有效的,但是当我执行搜索时,即使用户在搜索之前选择了“跟踪”,它也会默认返回给艺术家.我怎么能纠正这个？

自动选择当前值适用于单选按钮：

<% form_for @search,:html => {:method => :get} do |f| %>
  <p class="radio_button">
  <%= f.label :type_track,'Search tracks' %>
  <%= f.radio_button :type,'Track' %>
  </p>
  <p class="radio_button">
  <%= f.label :type_artist,'Search artists' %>
  <%= f.radio_button :type,'Artist' %>
  </p>
  <p class="text_field">
  <%= f.label :query,'Search query' %>
  <%= f.text_field :query,:class => 'auto_focus' %>
  </p>
  <p class="submit">
  <%= submit_tag 'Go' %>
  </p>
<% end %>

任何有助于此工作的帮助将不胜感激！