<%= select_tag "user_type", options_for_select([['按销售经理','name'],['按客户','customer']],params[:user_type]), {'lay-filter': 'user_type'}%>

<%= select_tag "sort_by", options_for_select([['', ''], ['升序', 'asc'], ['降序', 'desc']], params[:sort_by]), { include_blank: true } %>