socialforge/app/views/courses/_course_student.html.erb

<div class="st_list">
  <div class="st_search">
    <%= form_tag( searchmembers_course_path(@course), method: 'get',:class => "f_l",:remote=>true,:id => "search_student") do %>
        <%= text_field_tag 'name', params[:name], name: "name", :class => 'st_search_input', :placeholder => '输入学生姓名、学号进行搜索'%>
        <% if @group %>
            <%= hidden_field "search_group_id", params[:search_group_id],:value => "#{@group.id}", name: 'search_group_id' %>
            <input type="hidden" name="ingroup">
        <% else %>
            <input type="hidden" name="incourse">
        <% end %>
    <% end %>
    <a href="javascript:" class="f_l" onclick="$('#search_student').submit();">搜索</a>
  </div>
  <div class="cl"></div>

  <div class="st_addclass">
    <%= render :partial => 'new_groups_name', :locals => {:course_groups => @course_groups} %>
  </div>
  <div class="cl"></div>

  <%= render :partial => 'new_member_list', :locals => {:members => members} %>
</div> <!-- st_list end-->
<div class="cl"></div>