jq 实现上下排序的一段代码

前台页面：

<div  class="adddaren_box">
    {%if isset($masterDetailsInfo)%}
        <div class="adddaren_box1">
            删除/修改达人列表
        </div>
        <input type="hidden" value="{%$masterDetailsInfo->getMasterId()%}" id="master_id">
        <div class="adddaren_box2">
            用户名
            <input type="text" readOnly="true" value="{%$masterDetailsInfo->getUserName()%}" class="adddaren_box2_inp"  />
        </div>
        <div class="adddaren_box3">
            推荐理由
            <input type="text" value="{%$masterDetailsInfo->getMasterInfo()%}" class="adddaren_box3_inp"  />
        </div>
        <div class="adddaren_box4">
            推荐时间
            <input type="text" value="{%$masterDetailsInfo->getStartTime()%}" class="adddaren_box4_inp"  />
        </div>
        <div class="adddaren_box5">
            结束时间
            <input type="text" value="{%$masterDetailsInfo->getEndTime()%}" class="adddaren_box5_inp" />
        </div>
        <div class="adddaren_box6">
            <div class="adddaren_box6_sp1" id="modify">修改</div>
            <div class="adddaren_box6_sp2" id="del">删除</div>
        </div>
    {%else%}
        <div class="adddaren_box1">
            添加达人列表
        </div>
        <div class="adddaren_box2">
            用户名
            <input type="text" value="" class="adddaren_box2_inp"  />
        </div>
        <div class="adddaren_box3">
            推荐理由
            <input type="text" value="" class="adddaren_box3_inp"  />
        </div>
        <div class="adddaren_box4">
            推荐时间
            <input type="text" value="" class="adddaren_box4_inp"  />
        </div>
        <div class="adddaren_box5">
            结束时间            <input type="text" value="" class="adddaren_box5_inp" />        </div>        <div class="adddaren_box6">            <div class="adddaren_box6_sp1" id="add">添加</div>        </div>    {%/if%}</div>{%script%}require.async('huanzhe_houtai:widget/adddaren/adddaren',function(adddaren){adddaren.run();}){%/script%}

js:
exports.run = function(){

   $(function(){
      var pages = require('common:widget/page/page');

      $(".addbanner").click(function(){
         location.href="/huanzhe_houtai/ad_guanli";
      });
      //排序用
      var i=$(this).parents().index();
      $(document).on("click", '#prev', function master_order(){
         var current_obj = $(this).parent().parent().eq(i);
         //alert(current_obj.attr('class'));
         if(current_obj.attr('class') == 'data_list_row'){
            //alert(1);
            var current_id = $(this).data("id");
            var current_order = $(this).data("order");

            var up = current_obj.prev().children('.edition_box3_sp6');
            var prev = up.children('#prev');

            var prev_id = prev.data("id");
            var prev_order = prev.data("order");
            //alert('当前id:'+current_id);
            //alert('上一条id'+prev_id);
            if(!prev_id){
               alert('亲，已经置顶了哟！');
            }else{
               $(".loading").show();
               if(parseInt(current_order) != parseInt(prev_order)) {
                  $.get("/index.php/master/order_master",
                     {current_id: current_id,current_order: current_order,swap_id: prev_id, swap_order: prev_order},
                     function (data) {
                        console.log(data);
                        var cur = current_obj.children('.edition_box3_sp6').children('#prev');
                        var cur_next = current_obj.children('.edition_box3_sp6').children('#next');

                        cur.data({"order":prev_order});
                        cur_next.data({"order":prev_order});

                        prev.data({"order":current_order});
                        up.children('#next').data({"order":current_order});
                        current_obj.prev().before(current_obj);
                        $(".loading").hide();
                     },'html');
               }

            }
         }
      });

      $(document).on("click", '#next', function master_order(){
         var current_obj = $(this).parent().parent().eq(i);         //alert(current_obj.attr('class'));         if(current_obj.attr('class') == 'data_list_row'){ 

           //alert(1);            var current_id = $(this).data("id");            var current_order = $(this).data("order");            var down = current_obj.next().children('.edition_box3_sp6');            var next = down.children('#next');            var next_id = next.data("id");            var next_order = next.data("order");            if(!next_id){               alert('亲，已经到底了！');            }else{               $(".loading").show();               if(parseInt(current_order) != parseInt(next_order)) {                  $.get("/index.php/master/order_master",                     {current_id: current_id,current_order: current_order,swap_id: next_id, swap_order: next_order},                     function (data) {                        console.log(data);                        var cur = current_obj.children('.edition_box3_sp6').children('#prev');                        var cur_next = current_obj.children('.edition_box3_sp6').children('#next');                        cur.data({"order":next_order});                        cur_next.data({"order":next_order});                        // alert(next_order);                        next.data({"order":current_order});                        down.children('#prev').data({"order":current_order});                        //alert(current_order);                        current_obj.next().after(current_obj);                        $(".loading").hide();                     },'html');               }            }         }      });      //这里是分页用的      pages.setCallback(function(page,page_size) {         $(".loading").show();         console.log(page+','+page_size);         //var param = $('.notice_param').val();         $.get("/index.php/master/load_master_page_list",{"page":page,"page_size":page_size},function(data){            console.log(data);            //$(".InitPHP_pages").replaceWith(data);            //$(data).replaceAll('.edition_box3');            $(".InitPHP_pages").remove();            $(".edition_box3").remove();            $(".edition_box2").after(data);            $(".loading").hide();         },'html');      });   });};