老菜鸟 rails笔记 动态给form_tag中的元素的name属性赋值

<%  @mplan.each do |day| %>
    <% if day.saturday? || day.sunday? %>
        " class="weekend">
            考勤日期:
            " name="<%= day %>" type="date" value="<%= day%>" >
            考勤班组:
            <%= select_tag  "shift#{day}" ,options_from_collection_for_select(@shifts,"id","shift"),:class => "text_input shift",:id =>"shift"+day.to_s %>
            
        
    <% else %>
        ">
            考勤日期:
            " name="<%= day %>" type="date" value="<%= day%>" >
            考勤班组:
            <%= select_tag  "shift#{day}",options_from_collection_for_select(@shifts,"id","shift"),:class => "text_input shift",:id =>"shift"+day.to_s %>
            
        
    <% end %>
<%end%>

关键代码 select_tag  "shift#{day}" 其中day是循环的变量。